Permit Application
Summary of Revised Materials Colon Mine Site - Application for Mine Permit Transfer/Modification Addendum 1 - March 13, 2015
Section / Item Binder Cover Spine Calculation B - Stormwater Sediment Basin Calculations Drawings 01C-11 01C-12
Action Needed
Comments
replace replace
added revision date added revision date
replace entire section
Revisions to Sediment Basins 3, 4, 6, 8, and 9 for 25-year 24-hour storm
replace select drawings
Revisions to Erosion & Sediment Control Plan for 25-year 24-hour storm
Mine Permit Transfer/Modification
Colon Mine Site Charah, Inc. Sanford, North Carolina November 2014 Revised December 2014 Revised March 2015
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #1
Sheet: 1
Of: 4
Objective
Design the sediment basin to contain the 10-year storm and pass the 100-year storm without over topping the berm.
References 1. NC Erosion and Sediment Control Planning and Design Manual. 2. "Elements of Urban Stormwater Design" by H. Rooney Malcom, P.E. 3. VA Erosion and Sediment Control Handbook 3. NOAA Atlas 14, Volume 2, Version 3 Given Phase Storm Event (yrs) = Total Drainage Area A (ac) = Disturbed Area (ac) = Curve Number CN = Rainfall Depth P (in) = Peak Flow Qp (cfs) =
1 10 5.4 5.4 86 5.28 32.86
2 10 9.3 9.3 86 5.28 43.09
2 25 9.3 9.3 86 6.28 53.49
2 100 9.3 9.3 86 7.88 70.07
Hydrographs (24-hr rainfall) Hydrographs
Ref 3
Design Criteria Required sediment storage Required sediment storage
1,800 16,740
cf / acre of drainage cf (based on largest Phase)
Required Surface Area Required Surface Area (SF)
435 18,744
sf/cfs of the 10-yr storm peak flow (based on the largest Phase in cfs) of the 10-yr storm peak flow (based on the largest Phase)
Determine Shape of Basin: Measure the area of the Basin using AutoCADD. Calculate Volume of the Basin using Truncated Pyramid Method. Shape factor used in hydrographs basin depth may be gretaer than indicated below
Elevation (ft) 283 283 284 285 286 287 288 289
Depth (ft) 0 0 1 2 3 4 5 6
Area (sf) 0 13,792 15,414 17,133 18,947 21,463 23,731 26,305
Volume (cf) 0 14,595 16,266 18,032 20,192 22,588 25,007
Design Sediment Depth (ft) = 3 Sediment Storage (cf) = 48,894 Design Surface Area Depth (ft) = 3 Surface Area (sf) = 18,947
Cumulative Vol (cf) 0 14,595 30,861 48,894 69,086 91,673 116,680
Cumulative Vol (cy) 0 541 1,143 1,811 2,559 3,395 4,321
Required Sediment Storage Achieved
Required Surface Area Achieved
SB Dims SB 01.xlsx
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #1
Sheet: 2
Of: 4
Select Skimmer A. R. Jarrett Method D = [Q / (2,310 * (H 0.5)]0.5 D =Diameter of Orifice (inches) Q = Dewater Rate (cf/day) H = Head on orifice, varies based on skimmer size (ft) Skimmer Sizes (Inches) 1.5 2 2.5 3 4 5 6 8
Head (ft) 0.125 0.167 0.167 0.250 0.333 0.333 0.417 0.500
Volume to Dewater (cf) = Number of Skimmers Days to Drain = Q each (cf/day) =
48,894 1 5 9,779
Selected Skimmer Size (inches) = Head on Skimmer (feet) = Diameter of Orifice (inches) =
4 0.333 2.7
assumed 0.11 cfs
Route the flow through the Basin Riser is not perforated, but skimmer is attached. S = (1000/CN) - 10 2 Runoff Depth Q* (inches) = (P-0.2S) /(P+0.8S) TP (min) = 60.5(Q*)A/QP/1.39
Phase Storm Event (yrs) = S= Runoff Depth Q* (inches) = Time to Peak T p (min) =
1 10 1.63 3.73 26.67
2 10 1.63 3.73 35.03
Ref 2, III-4
2 25 1.63 4.68 35.39
Determine Pond Storage Elevation (ZWater): Pick one point near max expected water surface and the other at the mid depth. Z1 (ft) = 3 S1 (cf)= 48,894 Z2 (ft) = 6 S2 (cf) = 116,680 1.3 b = ln(S2/S1)/ln(Z2/Z1) = b
KS = S2/Z2 =
2 100 1.63 6.22 35.90
Ref 2, III-8
12,318
SB Dims SB 01.xlsx
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #1
Sheet: 3
Of: 4
Determine Settling Velocity Conversion Factor =
3.281 ft/sec per m/sec
2
Gravitational Acceleration, g (m/s ) = Specific Gravity of soil (ss)= Kinematic Viscosity of water (v) = Diameter of the Design Particle d15 = Design Particle Settling Velocity
9.81 2.6 2 o 1.14E-06m / sec @ 20 C 40.00E-06 m
=
( g / 18 ) * [ ( ss
Route the Storm through the Basin using the Hydrograph Model Set Height of Emergency Spillway at (ft) = 7.00 Set Top of Dam at (ft) = 7.50 Emergency Spillway QE (cfs) = 100-Yr Storm QE (cfs) = 5.8 Cross Section = Trapezoid Channel Side Slope (z) = 5 n= 0.03 Vp (ft/sec) = 5.0 Allowable Shear Stress (psf) = 2.0 Bottom Width, b (ft) = 20
Ref 2, IV-11
- 1 ) / v ] d2 =
4.02E-03
ft/sec
See Hydrograph
(enter X for X:1) Grass Lined Permissible Velocity for lining Allowable Shear Stress for lining
Ref 2, II-7
Calculate Required Depth of Spillway: Normal-Depth Procedure AR2/3=Qn/1.49s0.5
Q=VA
Zreq=Qn/1.49s0.5
Area (A)= bd+z(d^2)
2/3
Zav=AR
Channel Slope ft/ft 0.01 0.02
Depth, d (ft) 0.18 0.15
A (sf) 3.77 3.03
Construct the channel to be :
R=Area/(b+2d((z^2)+1)^.5) Avg Shear Stress(T) = Kb*d*s*unit weight of water
Zreq 1.17 0.82 20 0.5 1%
R 0.17 0.14
Z avail 1.17 0.82
V (ft/sec) 1.5 1.9
T (psf) 0.1 0.2
ft, Bottom Width (measured at top of lining) ft, depth (measured at top of lining) slope
Anti-Seep Collar: Anti-Seep Collar Size = 2 * Barrel Dia Anti-Seep Collar Size (ft) = 3 Use Anti-Seep Collar Size (ft) = 3
x3
SB Dims SB 01.xlsx
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #1
Sheet: 4
Of: 4
Minimum Concrete Base for Riser: Diameter of Riser (in) = 54 Avg Density of Concrete (lbs/cf) = Density of Water (lbs/cf) =
From Hydrograph 87.6 62.4
Riser Displacement (cf) = 101.79 Convert cf to cy = Min Concrete Needed (cy) = Width & Length (ft) = Thickness (ft) = Anti-Vortex Device: Diameter of Riser (in) = Cylinder Diameter (in) = Cylinder Thickness (gage) = Cylinder Height (in) =
Pi * (DR/24)2 * Total Ht of Riser
27-1 2.69 5.5 2.4
54 78 16 25
From Hydrograph Ref 3, III-104, Table 3.14-D
Determine Tailwater conditions to size outlet apron Use Normal Depth Procedure (Manning's Eqn.) A*R2/3 = Q*n/1.49 s0.5
Area (A)= bd+z(d^2)
Z req = Q*n/1.49s0.5
R=Area/(b+2d((z^2)+1)^.5)
n= Vp (ft/sec) = Side Slope (z) = s (ft/ft) = Bottom Width (ft) = QB (cfs) =
Q (cfs) 10.0
Zreq 3.26
0.069 9 5 0.02 9 10.0 Flow Depth d (ft) 0.51
Ref 2, II-7
Zav = A*R2/3
6-inch diameter Rip Rap, Lined Channel Permissible Velocity for lining enter X for X:1 Outlet Slope (estimated) 6 * Barrel Diameter Peak Flow out of the barrel 25-yr Hydrograph
A (sf) 5.9
R (ft) 0.41
Zav 3.26
V (ft/sec) 1.7
Flow Depth = Tailwater, d (ft) = 0.51 0.5* Barrel Diameter (ft) = 0.75 Minimum Tailwater Conditions: d0.5*Diameter of Outlet Pipe Since the Tailwater is less than half of the diameter of the outlet, use Minimum Tailwater conditions. Barrel Diameter (ft) 1.5
Entrance (ft) 4.5
Length (ft) 10
Outlet Width (ft) 12
Median Rip Rap Size d50 0.3
Ref 1, 8.06.3
Selected Rip Rap Size (in) Class A
Conclusion The basin can contain the 10-yr storm and pass the 100-yr storm without overtopping the berm.
SB Dims SB 01.xlsx
I Job No. 06985-10570-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow
Diameter of Riser (in) = Circumference of Riser (in) = Height of Riser from bottom of barrel (in) = Vertical spacing between holes (in) = Water Stage increment (ft)
54 169.6 77 0 0.05
l
Computed: PAW Date: 12/31/14 Checked: EAW Date: 1/2/15 Sheet 1 Of 2
From Hydrograph center to center
Orifice Equation Q = Cd * A * (2 * g * h)0.5 Q = cfs, discharge Cd = 0.6 coefficient of discharge A = sf, cross sectional area
Ref 1, p III-11
ft/sec2, gravity g = 32.2 h = ft, driving head measured from the center of the pipe
Row 1 Holes per row 0 Hole Diameter (in) 0.75 Spacing edge to edge (in) #DIV/0! Inlet Area (sf) 0.000 Hole Stage (in) 0.50 Hole Stage (ft) 0.04
2 0 0.75 #DIV/0! 0.000 0.50 0.04
Perforations 3 4 0 0 0.75 0.75 #DIV/0! #DIV/0! 0.000 0.000 0.50 0.50 0.04 0.04
5 0 0.75 #DIV/0! 0.000 0.50 0.04
Skimmer 1
# of skimmers
Water Stage (ft) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Total Flow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.00 0.00 0.29 0.00 0.00 0.00 0.00 0.00 0.34 0.00 0.00 0.00 0.11 0.11 0.39 0.00 0.00 0.00 0.11 0.11 0.44 0.00 0.00 0.00 0.11 0.11 0.49 0.00 0.00 0.00 0.11 0.11 0.54 0.00 0.00 0.00 0.11 0.11 0.59 0.00 0.00 0.00 0.11 0.11 0.64 0.00 0.00 0.00 0.11 0.11 0.69 0.00 0.00 0.00 0.11 0.11 0.74 0.00 0.00 0.00 0.11 0.11 0.79 0.00 0.00 0.00 0.11 0.11 0.84 0.00 0.00 0.00 0.11 0.11 0.89 0.00 0.00 0.00 0.11 0.11 0.94 0.00 0.00 0.00 0.11 0.11 0.99 0.00 0.00 0.00 0.11 0.11 1.04 0.00 0.00 0.00 0.11 0.11 1.09 0.00 0.00 0.00 0.11 0.11 1.14 0.00 0.00 0.00 0.11 0.11 1.19 0.00 0.00 0.00 0.11 0.11 1.24 0.00 0.00 0.00 0.11 0.11 1.29 0.00 0.00 0.00 0.11 0.11 1.34 0.00 0.00 0.00 0.11 0.11 1.39 0.00 0.00 0.00 0.11 0.11 1.44 0.00 0.00 0.00 0.11 0.11 1.49 0.00 0.00 0.00 0.11 0.11 1.54 0.00 0.00 0.00 0.11 0.11 1.59 0.00 0.00 0.00 0.11 0.11 SB 01.xlsx
Pipe Perf-Skimmer
I Job No. 06985-10570-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow 1.64 1.69 1.74 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.59 2.64 2.69 2.74 2.79 2.84 2.89 2.94 2.99 3.04 3.09 3.14 3.19 3.24 3.29 3.34 3.39 3.44 3.49 3.54 3.59 3.64 3.69 3.74 3.79 3.84 3.89 3.94 3.99
SB 01.xlsx
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
l
Computed: PAW Date: 12/31/14 Checked: EAW Date: 1/2/15 Sheet 2 Of 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
Pipe Perf-Skimmer
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _1__of _2
Sediment Basin # 1
Qp =
32.86
Tp =
26.67
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
cfs
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
Phase 1
1 18 4.9 6.4 7.0 7.5 20 54 0
10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
289.40 290.00 290.50
283.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
INFLOW STORAGE STAGE Skimmer [cfs] [cu ft] [ft] Flow [cfs] 0.0 0 0.0 0.00 0.5 0 0.0 0.00 1.8 54 0.0 0.00 3.9 269 0.0 0.00 6.8 741 0.1 0.00 10.1 1,554 0.2 0.00 13.9 2,770 0.3 0.00 17.7 4,433 0.4 0.11 21.5 6,545 0.6 0.11 25.0 9,111 0.8 0.11 28.0 12,099 1.0 0.11 30.4 15,450 1.2 0.11 32.1 19,088 1.4 0.11 32.8 22,921 1.6 0.11 32.7 26,844 1.9 0.11 31.6 30,750 2.1 0.11 29.7 34,530 2.3 0.11 27.2 38,084 2.5 0.11 24.7 41,334 2.6 0.11 22.4 44,281 2.8 0.11 20.3 46,953 2.9 0.11 18.4 49,375 3.0 0.11 16.7 51,571 3.1 0.11 15.2 53,562 3.2 0.11 13.7 55,367 3.3 0.11 12.5 57,003 3.4 0.11 11.3 58,485 3.5 0.11 10.3 59,829 3.5 0.11 9.3 61,047 3.6 0.11 8.4 62,150 3.6 0.11 7.7 63,149 3.7 0.11 6.9 64,055 3.7 0.11 6.3 64,875 3.8 0.11 5.7 65,618 3.8 0.11 5.2 66,290 3.8 0.11 4.7 66,899 3.9 0.11 4.3 67,450 3.9 0.11 3.9 67,948 3.9 0.11 3.5 68,399 3.9 0.11 3.2 68,807 3.9 0.11 2.9 69,176 4.0 0.11 2.6 69,509 4.0 0.11
SB 01.xlsx
Colon
RISER CAPACIT Y [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
4.0E-03 2 100% 4.1 0.1 0.1 0.0
1.3 12,318
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 287.10 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11
Bound Discharge [cfs] 0.00 0.00 11.31 15.64 19.22 22.33 25.12 27.63 29.91 31.99 33.88 35.61 37.17 38.58 39.83 40.95 41.92 42.77 43.48 44.10 44.62 45.08 45.48 45.83 46.14 46.42 46.66 46.88 47.07 47.24 47.39 47.53 47.65 47.76 47.86 47.95 48.03 48.10 48.17 48.23 48.28 48.32
Estimate Settling d Surface Efficiency Area (sf) [%] N/A N/A 5,140 N/A 7,111 N/A 8,735 N/A 10,151 N/A 11,416 N/A 12,560 100% 13,594 100% 14,539 100% 15,401 100% 16,185 100% 16,895 100% 17,535 100% 18,107 100% 18,613 100% 19,056 100% 19,439 100% 19,765 100% 20,044 100% 20,284 100% 20,492 100% 20,674 100% 20,834 100% 20,974 100% 21,099 100% 21,209 100% 21,307 100% 21,394 100% 21,472 100% 21,542 100% 21,604 100% 21,660 100% 21,710 100% 21,755 100% 21,796 100% 21,832 100% 21,865 100% 21,894 100% 21,921 100% 21,944 100% 21,966 100%
SB 10-yr (P1) HG
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _2__of _2
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 01.xlsx
2.4 2.2 2.0 1.8 1.6 1.5 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
69,810 70,081 70,327 70,548 70,747 70,927 71,088 71,234 71,364 71,482 71,587 71,681 71,765 71,840 71,907 71,966 72,019 72,065 72,106 72,142 72,173 72,200 72,223 72,243 72,260 72,274 72,285 72,294 72,301 72,306 72,309 72,311 72,311 72,310 72,308 72,305 72,301 72,296 72,290 72,283 72,276 72,268 72,260 72,251 72,242 72,232 72,222 72,212 72,201 72,190 72,179 72,168 72,156 72,144 72,132 72,120 72,108 72,096 72,083 72,071 72,058 72,045
4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
48.37 48.41 48.44 48.47 48.50 48.52 48.55 48.57 48.58 48.60 48.61 48.63 48.64 48.65 48.66 48.67 48.67 48.68 48.69 48.69 48.70 48.70 48.70 48.70 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.70 48.70 48.70 48.70 48.70 48.70 48.70 48.69 48.69 48.69 48.69 48.69 48.69 48.68 48.68 48.68 48.68 48.68
21,985 22,002 22,018 22,032 22,045 22,056 22,066 22,075 22,084 22,091 22,098 22,104 22,109 22,113 22,118 22,121 22,125 22,128 22,130 22,132 22,134 22,136 22,137 22,139 22,140 22,141 22,141 22,142 22,142 22,143 22,143 22,143 22,143 22,143 22,143 22,142 22,142 22,142 22,142 22,141 22,141 22,140 22,140 22,139 22,139 22,138 22,137 22,137 22,136 22,135 22,135 22,134 22,133 22,132 22,132 22,131 22,130 22,129 22,129 22,128 22,127 22,126
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #1 Colon Mine Phase 1 Hydrograph 10-Yr Storm
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: _1__of __2_
Qp = Tp =
43.09 35.03 2 1.0%
dT = Max of
or
Sediment Basin # 1
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
1 18 4.9 6.4 7 7.5 20 54 0
Phase 2 10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
289.40 290.00 290.50
283.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84
INFLOW STORAGE STAGE Skimmer [cfs] [cu ft] [ft] Flow [cfs] 0.0 0 0.0 0.00 0.3 0 0.0 0.00 1.4 41 0.0 0.00 3.0 206 0.0 0.00 5.3 571 0.1 0.00 8.1 1,209 0.2 0.00 11.3 2,181 0.3 0.00 14.9 3,539 0.4 0.11 18.6 5,309 0.5 0.11 22.5 7,530 0.7 0.11 26.3 10,214 0.9 0.11 30.0 13,358 1.1 0.11 33.4 16,941 1.3 0.11 36.4 20,933 1.5 0.11 38.9 25,288 1.8 0.11 40.9 29,948 2.0 0.11 42.3 34,846 2.3 0.11 43.0 39,909 2.6 0.11 43.0 45,055 2.8 0.11 42.3 50,202 3.1 0.11 41.0 55,268 3.3 0.11 39.0 60,173 3.5 0.11 36.5 64,842 3.8 0.11 33.9 69,213 4.0 0.11 31.5 73,270 4.1 0.11 29.2 77,036 4.3 0.11 27.2 80,532 4.5 0.11 25.2 83,776 4.6 0.11 23.4 86,788 4.7 0.11 21.7 89,583 4.9 0.11 20.2 92,177 5.0 0.11 18.7 94,585 5.1 0.11 17.4 96,819 5.2 0.11 16.1 98,893 5.3 0.11 15.0 100,818 5.3 0.11 13.9 102,603 5.4 0.11 12.9 104,260 5.5 0.11 12.0 105,798 5.5 0.11 11.1 107,225 5.6 0.11 10.3 108,548 5.7 0.11 9.6 109,776 5.7 0.11 8.9 110,915 5.8 0.11 8.3 111,972 5.8 0.11
SB 01.xlsx
Colon
RISER CAPACIT Y [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
WEIR FLOW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4.0E-03 2 100% 6.3 0.1 0.1 0.0
1.3 12,318
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 289.33 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
BARREL TOTAL Bound Estimated CAPACIT OUTFLOW Discharge Surface Y [cfs] [cfs] [cfs] Area (sf) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10.70 4,864 0.00 0.00 14.82 6,735 0.00 0.00 18.23 8,285 0.00 0.00 21.22 9,647 0.00 0.00 23.92 10,875 0.11 0.11 26.40 11,998 0.11 0.11 28.66 13,029 0.11 0.11 30.77 13,987 0.11 0.11 32.74 14,880 0.11 0.11 34.57 15,714 0.11 0.11 36.28 16,491 0.11 0.11 37.87 17,215 0.11 0.11 39.35 17,888 0.11 0.11 40.73 18,513 0.11 0.11 42.00 19,092 0.11 0.11 43.18 19,625 0.11 0.11 44.25 20,114 0.11 0.11 45.23 20,561 0.11 0.11 46.13 20,967 0.11 0.11 46.93 21,332 0.11 0.11 47.65 21,658 0.11 0.11 48.28 21,947 0.11 0.11 48.84 22,202 0.11 0.11 49.34 22,429 0.11 0.11 49.79 22,632 0.11 0.11 50.19 22,815 0.11 0.11 50.55 22,979 0.11 0.11 50.88 23,127 0.11 0.11 51.18 23,262 0.11 0.11 51.44 23,384 0.11 0.11 51.69 23,495 0.11 0.11 51.91 23,596 0.11 0.11 52.12 23,689 0.11 0.11 52.30 23,774 0.11 0.11 52.47 23,851 0.11 0.11 52.63 23,922 0.11 0.11 52.77 23,987 0.11 0.11 52.90 24,047 0.11 0.11 53.02 24,102 0.11 0.11 53.14 24,153 0.11 0.11 53.24 24,199
Settling Efficiency [%] N/A N/A N/A N/A N/A N/A N/A 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: _2__of __2_
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 01.xlsx
7.7 7.1 6.6 6.2 5.7 5.3 4.9 4.6 4.2 3.9 3.7 3.4 3.2 2.9 2.7 2.5 2.3 2.2 2.0 1.9 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 1.0 0.9 0.8 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1
112,952 113,861 114,704 115,486 116,211 116,883 117,506 118,083 118,618 119,114 119,574 119,999 120,394 120,759 121,097 121,409 121,699 121,967 122,214 122,443 122,655 122,850 123,031 123,198 123,351 123,493 123,624 123,744 123,855 123,957 124,051 124,137 124,215 124,288 124,354 124,414 124,469 124,519 124,565 124,606 124,644 124,678 124,708 124,735 124,760 124,781 124,801 124,817 124,832 124,844 124,855 124,864 124,872 124,877 124,882 124,885 124,887 124,888 124,888 124,887
5.8 5.9 5.9 6.0 6.0 6.0 6.0 6.1 6.1 6.1 6.1 6.1 6.2 6.2 6.2 6.2 6.2 6.2 6.2 6.2 6.2 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
53.33 53.42 53.50 53.57 53.64 53.70 53.76 53.82 53.87 53.91 53.95 53.99 54.03 54.06 54.09 54.12 54.15 54.17 54.19 54.21 54.23 54.25 54.27 54.28 54.29 54.31 54.32 54.33 54.34 54.35 54.36 54.36 54.37 54.38 54.38 54.39 54.39 54.40 54.40 54.41 54.41 54.41 54.42 54.42 54.42 54.42 54.42 54.43 54.43 54.43 54.43 54.43 54.43 54.43 54.43 54.43 54.43 54.43 54.43 54.43
24,242 24,282 24,318 24,351 24,382 24,411 24,437 24,462 24,484 24,505 24,524 24,542 24,558 24,573 24,587 24,600 24,612 24,623 24,633 24,643 24,651 24,659 24,666 24,673 24,680 24,685 24,691 24,695 24,700 24,704 24,708 24,711 24,715 24,717 24,720 24,723 24,725 24,727 24,729 24,730 24,732 24,733 24,734 24,736 24,736 24,737 24,738 24,739 24,739 24,740 24,740 24,741 24,741 24,741 24,741 24,742 24,742 24,742 24,742 24,742
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0 TOTAL OUTFLOW [cfs] INFLOW [cfs]
150
3.0
STAGE [ft] 100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE (ft)
FLOW (cfs)
Sediment Basin #1 Colon Mine Phase 2 Hydrograph 10-Yr Storm
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _1__of _2_
Qp = Tp = dT = Max of
or
53.49 35.39 2 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
1 18 4.9 6.4 7.0 7.5 20 54 0
Sediment Basin # 1
Phase 2 25 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
289.40 290.00 290.50
283.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 01.xlsx
Colon
INFLOW STORAGE STAGE Skimmer [cfs] [cu ft] [ft] Flow [cfs] 0.0 0 0.0 0.00 0.4 0 0.0 0.00 1.7 50 0.0 0.00 3.7 251 0.0 0.00 6.5 695 0.1 0.00 9.9 1,471 0.2 0.00 13.8 2,655 0.3 0.00 18.1 4,311 0.4 0.11 22.7 6,473 0.6 0.11 27.5 9,188 0.8 0.11 32.2 12,472 1.0 0.11 36.7 16,320 1.3 0.11 41.0 20,714 1.5 0.11 44.7 25,614 1.8 0.11 47.9 30,968 2.1 0.11 50.5 36,708 2.4 0.11 52.3 42,753 2.7 0.11 53.3 49,015 3.0 0.11 53.5 55,396 3.3 0.11 52.8 61,796 3.6 0.11 51.3 68,115 3.9 0.11 49.0 74,255 4.2 0.11 46.0 80,122 4.4 0.11 42.8 85,634 4.7 0.11 39.8 90,761 4.9 0.11 37.0 95,524 5.1 0.11 34.4 99,948 5.3 0.11 31.9 104,058 5.5 0.11 29.7 107,876 5.6 0.11 27.6 111,422 5.8 0.11 25.6 114,717 5.9 0.11 23.8 117,777 6.0 0.11 22.1 120,619 6.2 0.11 20.5 123,259 6.3 0.11 19.1 125,711 6.4 0.11 17.7 127,988 6.5 0.11 16.5 130,023 6.5 0.11 15.3 131,691 6.6 0.11 14.2 132,986 6.7 0.11 13.2 133,941 6.7 0.11 12.3 134,607 6.7 0.11 11.4 135,036 6.7 0.11 10.6 135,278 6.8 0.11
RISER CAPACIT Y [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.78 2.58 4.52 6.27 7.68 8.71 9.40 9.79
4.0E-03 2 97% 6.8 10.0 10.0 0.0
1.3 12,318
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 289.8 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFL [cfs] [cfs] OW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 20.30 0.78 0.00 20.44 2.58 0.00 20.56 4.52 0.00 20.65 6.27 0.00 20.72 7.68 0.00 20.76 8.71 0.00 20.79 9.40 0.00 20.81 9.79
Bound Discharge [cfs] 0.00 0.00 11.13 15.42 18.97 22.09 24.90 27.48 29.84 32.04 34.09 36.01 37.79 39.46 41.01 42.45 43.78 45.02 46.15 47.18 48.13 48.98 49.74 50.42 51.02 51.55 52.02 52.45 52.84 53.18 53.50 53.79 54.05 54.29 54.50 54.70 54.88 55.02 55.13 55.21 55.27 55.30 55.32
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 5,061 N/A 7,009 N/A 8,622 N/A 10,040 N/A 11,319 N/A 12,489 100% 13,564 100% 14,564 100% 15,496 100% 16,366 100% 17,178 100% 17,935 100% 18,640 100% 19,295 100% 19,901 100% 20,461 100% 20,976 100% 21,447 100% 21,876 100% 22,262 100% 22,609 100% 22,917 100% 23,189 100% 23,431 100% 23,647 100% 23,842 100% 24,017 100% 24,175 100% 24,318 100% 24,449 100% 24,568 100% 24,676 100% 24,775 100% 24,865 100% 24,945 100% 25,010 99% 25,059 99% 25,096 98% 25,121 98% 25,137 98% 25,146 97% SB 25-yr HG (P2)
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _2__of _2_
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 01.xlsx
9.9 9.2 8.5 7.9 7.3 6.8 6.3 5.9 5.5 5.1 4.7 4.4 4.1 3.8 3.5 3.3 3.0 2.8 2.6 2.4 2.3 2.1 2.0 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.9 0.8 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1
135,375 135,363 135,269 135,117 134,922 134,697 134,454 134,199 133,937 133,674 133,411 133,152 132,898 132,650 132,410 132,176 131,950 131,732 131,522 131,320 131,126 130,940 130,760 130,588 130,423 130,265 130,113 129,968 129,828 129,695 129,566 129,444 129,326 129,213 129,105 129,001 128,902 128,806 128,715 128,627 128,543 128,462 128,384 128,310 128,239 128,170 128,104 128,041 127,980 127,922 127,866 127,812 127,760 127,710 127,662 127,616 127,571 127,528 127,487 127,447 127,409
6.8 6.8 6.8 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
9.95 9.93 9.78 9.53 9.21 8.85 8.47 8.07 7.67 7.27 6.88 6.51 6.15 5.80 5.47 5.15 4.86 4.58 4.31 4.06 3.82 3.60 3.39 3.19 3.01 2.83 2.67 2.52 2.37 2.24 2.11 1.99 1.88 1.77 1.67 1.58 1.49 1.41 1.34 1.26 1.19 1.13 1.07 1.01 0.96 0.91 0.86 0.82 0.78 0.74 0.70 0.66 0.63 0.60 0.57 0.54 0.52 0.49 0.47 0.45 0.43
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
20.82 20.82 20.81 20.80 20.79 20.77 20.75 20.74 20.72 20.70 20.68 20.66 20.64 20.63 20.61 20.59 20.58 20.56 20.55 20.53 20.52 20.51 20.50 20.48 20.47 20.46 20.45 20.44 20.43 20.42 20.41 20.40 20.39 20.39 20.38 20.37 20.36 20.36 20.35 20.34 20.34 20.33 20.33 20.32 20.32 20.31 20.31 20.30 20.30 20.29 20.29 20.29 20.28 20.28 20.27 20.27 20.27 20.27 20.26 20.26 20.26
9.95 9.93 9.78 9.53 9.21 8.85 8.47 8.07 7.67 7.27 6.88 6.51 6.15 5.80 5.47 5.15 4.86 4.58 4.31 4.06 3.82 3.60 3.39 3.19 3.01 2.83 2.67 2.52 2.37 2.24 2.11 1.99 1.88 1.77 1.67 1.58 1.49 1.41 1.34 1.26 1.19 1.13 1.07 1.01 0.96 0.91 0.86 0.82 0.78 0.74 0.70 0.66 0.63 0.60 0.57 0.54 0.52 0.49 0.47 0.45 0.43
55.33 55.33 55.32 55.31 55.29 55.27 55.25 55.23 55.21 55.19 55.17 55.14 55.12 55.10 55.08 55.06 55.04 55.02 55.01 54.99 54.97 54.96 54.94 54.93 54.91 54.90 54.89 54.87 54.86 54.85 54.84 54.83 54.82 54.81 54.80 54.79 54.78 54.77 54.77 54.76 54.75 54.74 54.74 54.73 54.73 54.72 54.71 54.71 54.70 54.70 54.69 54.69 54.68 54.68 54.68 54.67 54.67 54.66 54.66 54.66 54.65
25,150 25,150 25,146 25,140 25,133 25,125 25,115 25,106 25,096 25,086 25,076 25,066 25,056 25,047 25,037 25,028 25,020 25,011 25,003 24,995 24,988 24,981 24,974 24,967 24,961 24,954 24,948 24,943 24,937 24,932 24,927 24,922 24,918 24,913 24,909 24,905 24,901 24,897 24,894 24,890 24,887 24,884 24,881 24,878 24,875 24,872 24,870 24,867 24,865 24,863 24,860 24,858 24,856 24,854 24,852 24,850 24,849 24,847 24,845 24,844 24,842
97% 97% 97% 97% 98% 98% 98% 98% 98% 98% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 25-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
OUTFLOW INFLOW [cfs]
200
STAGE [ft]
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #1 Colon Mine Phase 2 Hydrograph 25-Yr Storm
Computed By: PAW Date: 12/31/14 Checked By: EAW
Date: 1/2/15 Sheet: 1 of 2
Qp = Tp = dT = Max of
or
70.1 35.9 2 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
1 18 4.9 6.4 7.0 7.5 20 54 0
Sediment Basin # 1
Phase 2 100 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
289.40 290.00 290.50
283.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 01.xlsx
Colon
4.0E-03 2 88% 7.2 27.4 21.6 5.8
1.3 12,318
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 290.2 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
WEIR BARREL TOTAL Bound RISER INFLOW STORAGE STAGE Skimmer CAPACIT FLOW CAPACITY OUTFLOW Discharge [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] [cfs] [cfs] [cfs] [cfs] 0.0 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 0.5 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 2.1 64 0.0 0.00 0.00 0.00 0.00 0.00 11.69 4.7 319 0.1 0.00 0.00 0.00 0.00 0.00 16.19 8.2 885 0.1 0.00 0.00 0.00 0.00 0.00 19.92 12.6 1,874 0.2 0.00 0.00 0.00 0.00 0.00 23.20 17.6 3,383 0.4 0.11 0.11 0.00 0.11 0.11 26.16 23.2 5,482 0.5 0.11 0.11 0.00 0.11 0.11 28.85 29.1 8,248 0.7 0.11 0.11 0.00 0.11 0.11 31.35 35.2 11,724 1.0 0.11 0.11 0.00 0.11 0.11 33.67 41.3 15,932 1.2 0.11 0.11 0.00 0.11 0.11 35.83 47.2 20,872 1.5 0.11 0.11 0.00 0.11 0.11 37.85 52.7 26,521 1.8 0.11 0.11 0.00 0.11 0.11 39.74 57.7 32,834 2.2 0.11 0.11 0.00 0.11 0.11 41.50 62.0 39,747 2.5 0.11 0.11 0.00 0.11 0.11 43.14 65.5 47,175 2.9 0.11 0.11 0.00 0.11 0.11 44.67 68.0 55,022 3.3 0.11 0.11 0.00 0.11 0.11 46.08 69.6 63,174 3.7 0.11 0.11 0.00 0.11 0.11 47.40 70.1 71,510 4.1 0.11 0.11 0.00 0.11 0.11 48.60 69.5 79,905 4.4 0.11 0.11 0.00 0.11 0.11 49.71 67.8 88,229 4.8 0.11 0.11 0.00 0.11 0.11 50.72 65.2 96,357 5.2 0.11 0.11 0.00 0.11 0.11 51.64 61.6 104,168 5.5 0.11 0.11 0.00 0.11 0.11 52.46 57.5 111,551 5.8 0.11 0.11 0.00 0.11 0.11 53.20 53.5 118,437 6.1 0.11 0.11 0.00 0.11 0.11 53.85 49.7 124,842 6.3 0.11 0.11 0.00 0.11 0.11 54.43 46.3 130,798 6.6 0.11 3.43 0.00 20.50 3.43 54.95 43.0 135,939 6.8 0.11 10.90 0.00 20.86 10.90 55.38 40.0 139,795 6.9 0.11 18.09 0.00 21.12 18.09 55.69 37.2 142,428 7.0 0.11 23.63 0.37 21.29 21.66 55.90 34.6 144,298 7.1 0.11 27.84 2.10 21.42 23.51 56.05 32.2 145,632 7.2 0.11 30.97 3.81 21.51 25.32 56.16 30.0 146,460 7.2 0.11 32.97 5.03 21.56 26.59 56.22 27.9 146,865 7.2 0.11 33.96 5.67 21.59 27.26 56.25 25.9 146,939 7.2 0.11 34.14 5.79 21.59 27.38 56.26 24.1 146,765 7.2 0.11 33.71 5.51 21.58 27.09 56.25 22.4 146,408 7.2 0.11 32.84 4.95 21.56 26.51 56.22 20.9 145,918 7.2 0.11 31.66 4.22 21.53 25.75 56.18 19.4 145,332 7.1 0.11 30.26 3.40 21.49 24.88 56.13 18.1 144,675 7.1 0.11 28.71 2.55 21.44 23.99 56.08 16.8 143,962 7.1 0.11 27.07 1.72 21.40 23.12 56.03 15.6 143,203 7.1 0.11 25.35 0.97 21.35 22.31 55.97 14.5 142,399 7.0 0.11 23.57 0.35 21.29 21.64 55.90
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 5,315 N/A 7,361 N/A 9,056 N/A 10,545 N/A 11,889 100% 13,114 100% 14,248 100% 15,303 100% 16,286 100% 17,204 100% 18,062 100% 18,863 100% 19,609 100% 20,303 100% 20,948 100% 21,544 100% 22,093 100% 22,596 100% 23,056 100% 23,472 100% 23,847 100% 24,181 100% 24,477 100% 24,740 100% 24,975 100% 25,171 97% 25,315 93% 25,411 91% 25,478 90% 25,526 89% 25,555 88% 25,570 88% 25,572 88% 25,566 88% 25,553 88% 25,536 89% 25,515 89% 25,492 90% 25,466 90% 25,439 91% 25,410 91% SB 100-yr HG (P2)
Computed By: PAW Date: 12/31/14 Checked By: EAW
Date: 1/2/15 Sheet: 2 of 2
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 01.xlsx
13.5 12.6 11.7 10.9 10.1 9.4 8.7 8.1 7.6 7.0 6.5 6.1 5.7 5.3 4.9 4.6 4.2 3.9 3.7 3.4 3.2 3.0 2.7 2.6 2.4 2.2 2.1 1.9 1.8 1.7 1.5 1.4 1.3 1.2 1.2 1.1 1.0 0.9 0.9 0.8 0.7 0.7 0.6 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2
141,546 140,619 139,754 138,996 138,320 137,709 137,151 136,637 136,160 135,714 135,296 134,903 134,532 134,181 133,848 133,532 133,232 132,946 132,674 132,414 132,167 131,931 131,705 131,490 131,284 131,088 130,900 130,720 130,548 130,384 130,227 130,076 129,932 129,794 129,662 129,536 129,415 129,299 129,187 129,081 128,979 128,881 128,787 128,697 128,610 128,527 128,448 128,371 128,298 128,228 128,160 128,095 128,033 127,973 127,915 127,860 127,806 127,755 127,706 127,658
7.0 7.0 6.9 6.9 6.9 6.8 6.8 6.8 6.8 6.8 6.8 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.4 6.4 6.4
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
21.72 19.77 18.01 16.51 15.20 14.06 13.03 12.12 11.28 10.52 9.83 9.18 8.59 8.04 7.54 7.06 6.62 6.21 5.83 5.48 5.14 4.83 4.54 4.27 4.01 3.78 3.55 3.34 3.15 2.96 2.79 2.63 2.48 2.34 2.21 2.08 1.96 1.85 1.75 1.65 1.56 1.48 1.40 1.32 1.25 1.18 1.12 1.06 1.00 0.95 0.90 0.86 0.81 0.77 0.73 0.70 0.66 0.63 0.60 0.57
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
21.24 21.17 21.12 21.06 21.02 20.98 20.94 20.90 20.87 20.84 20.81 20.78 20.76 20.73 20.71 20.69 20.67 20.65 20.63 20.61 20.59 20.58 20.56 20.55 20.53 20.52 20.50 20.49 20.48 20.47 20.46 20.45 20.44 20.43 20.42 20.41 20.40 20.39 20.38 20.38 20.37 20.36 20.36 20.35 20.34 20.34 20.33 20.33 20.32 20.32 20.31 20.31 20.30 20.30 20.29 20.29 20.29 20.28 20.28 20.27
21.24 19.77 18.01 16.51 15.20 14.06 13.03 12.12 11.28 10.52 9.83 9.18 8.59 8.04 7.54 7.06 6.62 6.21 5.83 5.48 5.14 4.83 4.54 4.27 4.01 3.78 3.55 3.34 3.15 2.96 2.79 2.63 2.48 2.34 2.21 2.08 1.96 1.85 1.75 1.65 1.56 1.48 1.40 1.32 1.25 1.18 1.12 1.06 1.00 0.95 0.90 0.86 0.81 0.77 0.73 0.70 0.66 0.63 0.60 0.57
55.83 55.76 55.69 55.63 55.57 55.52 55.48 55.43 55.40 55.36 55.32 55.29 55.26 55.23 55.20 55.18 55.15 55.13 55.10 55.08 55.06 55.04 55.02 55.00 54.99 54.97 54.95 54.94 54.92 54.91 54.90 54.88 54.87 54.86 54.85 54.84 54.83 54.82 54.81 54.80 54.79 54.78 54.77 54.76 54.76 54.75 54.74 54.74 54.73 54.72 54.72 54.71 54.71 54.70 54.70 54.69 54.69 54.68 54.68 54.67
25,379 25,345 25,313 25,285 25,260 25,238 25,217 25,198 25,180 25,163 25,147 25,132 25,118 25,105 25,092 25,080 25,069 25,058 25,047 25,037 25,028 25,019 25,010 25,002 24,994 24,986 24,979 24,972 24,965 24,959 24,953 24,947 24,941 24,936 24,931 24,926 24,921 24,917 24,912 24,908 24,904 24,900 24,897 24,893 24,890 24,886 24,883 24,880 24,877 24,875 24,872 24,869 24,867 24,865 24,862 24,860 24,858 24,856 24,854 24,852
91% 92% 93% 94% 95% 95% 96% 96% 97% 97% 97% 98% 98% 98% 98% 98% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 100-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
OUTFLOW 250
INFLOW [cfs]
5.0
STAGE [ft] 200
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #1 Colon Mine Phase 2 Hydrograph 100-Yr Storm
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #2
Sheet: 1
Of:
Objective
Design the sediment basin to contain the 10-year storm and pass the 100-year storm without over topping the berm.
4
References 1. NC Erosion and Sediment Control Planning and Design Manual. 2. "Elements of Urban Stormwater Design" by H. Rooney Malcom, P.E. 3. VA Erosion and Sediment Control Handbook 3. NOAA Atlas 14, Volume 2, Version 3 Given Phase Storm Event (yrs) = Total Drainage Area A (ac) = Disturbed Area (ac) = Curve Number CN = Rainfall Depth P (in) = Peak Flow Qp (cfs) =
1 10 17.6 17.6 86 5.28 101.32
2 10 14.8 14.8 87 5.28 79.90
2 25 14.8 14.8 87 6.28 98.71
2 100 14.8 14.8 87 7.88 128.64
Hydrographs (24-hr rainfall) Hydrographs
Ref 3
Design Criteria Required sediment storage Required sediment storage
1,800 31,680
cf / acre of drainage cf (based on largest Phase)
Required Surface Area Required Surface Area (SF)
435 44,074
sf/cfs of the 10-yr storm peak flow (based on the largest Phase in cfs) of the 10-yr storm peak flow (based on the largest Phase)
Determine Shape of Basin: Measure the area of the Basin using AutoCADD. Calculate Volume of the Basin using Truncated Pyramid Method. Shape factor used in hydrographs basin depth may be gretaer than indicated below
Elevation (ft) 259 259 260 261 262 263 264 265
Depth (ft) 0 0 1 2 3 4 5 6
Area (sf) 0 37,790 40,921 44,109 47,355 50,658 54,018 57,435
Volume (cf) 0 39,345 42,505 45,722 48,997 52,329 55,718
Design Sediment Depth (ft) = 3 Sediment Storage (cf) = 127,573 Design Surface Area Depth (ft) = 3 Surface Area (sf) = 47,355
Cumulative Vol (cf) 0 39,345 81,850 127,573 176,570 228,899 284,617
Cumulative Vol (cy) 0 1,457 3,031 4,725 6,540 8,478 10,541
Required Sediment Storage Achieved
Required Surface Area Achieved
SB 02.xlsx SB Dims
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #2
Sheet: 2
Of:
4
Select Skimmer A. R. Jarrett Method D = [Q / (2,310 * (H 0.5)]0.5 D =Diameter of Orifice (inches) Q = Dewater Rate (cf/day) H = Head on orifice, varies based on skimmer size (ft) Skimmer Sizes (Inches) 1.5 2 2.5 3 4 5 6 8 Volume to Dewater (cf) = Number of Skimmers Days to Drain = Q each (cf/day) = Selected Skimmer Size (inches) = Head on Skimmer (feet) = Diameter of Orifice (inches) =
Head (ft) 0.125 0.167 0.167 0.250 0.333 0.333 0.417 0.500 127,573 2 5 12,757
assumed 0.15 cfs
4 0.333 3.1
Route the flow through the Basin Riser is not perforated, but skimmer is attached. S = (1000/CN) - 10 2 Runoff Depth Q* (inches) = (P-0.2S) /(P+0.8S) TP (min) = 60.5(Q*)A/QP/1.39
Phase Storm Event (yrs) = S= Runoff Depth Q* (inches) = Time to Peak T p (min) =
1 10 1.63 3.73 28.19
2 10 1.49 3.83 30.89
Ref 2, III-4
2 25 1.49 4.79 31.23
Determine Pond Storage Elevation (ZWater): Pick one point near max expected water surface and the other at the mid depth. Z1 (ft) = 3 S1 (cf)= 127,573 Z2 (ft) = 6 S2 (cf) = 284,617 1.2 b = ln(S2/S1)/ln(Z2/Z1) = b
KS = S2/Z2 =
2 100 1.49 6.33 31.71
Ref 2, III-8
35,760
SB 02.xlsx SB Dims
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #2
Sheet: 3
Of:
Determine Settling Velocity Conversion Factor =
3.281 ft/sec per m/sec
2
Gravitational Acceleration, g (m/s ) = Specific Gravity of soil (ss)= Kinematic Viscosity of water (v) = Diameter of the Design Particle d15 = Design Particle Settling Velocity
4
9.81 2.6 2 o 1.14E-06m / sec @ 20 C 40.00E-06 m
=
( g / 18 ) * [ ( ss
Route the Storm through the Basin using the Hydrograph Model Set Height of Emergency Spillway at (ft) = 6.00 Set Top of Dam at (ft) = 7.00 Emergency Spillway QE (cfs) = 100-Yr Storm QE (cfs) = 0.0 Cross Section = Trapezoid Channel Side Slope (z) = 5 n= 0.03 Vp (ft/sec) = 5.0 Allowable Shear Stress (psf) = 2.0 Bottom Width, b (ft) = 15
Ref 2, IV-11
- 1 ) / v ] d2 =
4.02E-03
ft/sec
See Hydrograph
(enter X for X:1) Grass Lined Permissible Velocity for lining Allowable Shear Stress for lining
Ref 2, II-7
Calculate Required Depth of Spillway: Normal-Depth Procedure AR2/3=Qn/1.49s0.5
Q=VA
Zreq=Qn/1.49s0.5
Area (A)= bd+z(d^2)
2/3
Zav=AR
Channel Slope ft/ft 0.01 0.02
Depth, d (ft) 0.00 0.00
A (sf) 0.00 0.00
Construct the channel to be :
R=Area/(b+2d((z^2)+1)^.5) Avg Shear Stress(T) = Kb*d*s*unit weight of water
Zreq 0.00 0.00 15 1.0 1%
R 0.00 0.00
Z avail 0.00 0.00
V (ft/sec) 0.0 0.0
T (psf) 0.0 0.0
ft, Bottom Width (measured at top of lining) ft, depth (measured at top of lining) slope
Anti-Seep Collar: Anti-Seep Collar Size = 2 * Barrel Dia Anti-Seep Collar Size (ft) = 4 Use Anti-Seep Collar Size (ft) = 4
x4
SB 02.xlsx SB Dims
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #2
Sheet: 4
Of:
Minimum Concrete Base for Riser: Diameter of Riser (in) = 60 Avg Density of Concrete (lbs/cf) = Density of Water (lbs/cf) =
From Hydrograph 87.6 62.4
Riser Displacement (cf) = 102.10 Convert cf to cy = Min Concrete Needed (cy) = Width & Length (ft) = Thickness (ft) = Anti-Vortex Device: Diameter of Riser (in) = Cylinder Diameter (in) = Cylinder Thickness (gage) = Cylinder Height (in) =
4
Pi * (DR/24)2 * Total Ht of Riser
27-1 2.69 6 2.0
60 90 14 29
From Hydrograph Ref 3, III-104, Table 3.14-D
Determine Tailwater conditions to size outlet apron Use Normal Depth Procedure (Manning's Eqn.) A*R2/3 = Q*n/1.49 s0.5
Area (A)= bd+z(d^2)
Z req = Q*n/1.49s0.5
R=Area/(b+2d((z^2)+1)^.5)
n= Vp (ft/sec) = Side Slope (z) = s (ft/ft) = Bottom Width (ft) = QB (cfs) =
Q (cfs) 3.8
Zreq 1.24
0.069 9 5 0.02 12 3.8 Flow Depth d (ft) 0.25
Ref 2, II-7
Zav = A*R2/3
6-inch diameter Rip Rap, Lined Channel Permissible Velocity for lining enter X for X:1 Outlet Slope (estimated) 6 * Barrel Diameter Peak Flow out of the barrel 25-yr Hydrograph
A (sf) 3.3
R (ft) 0.23
Zav 1.24
V (ft/sec) 1.1
Flow Depth = Tailwater, d (ft) = 0.25 0.5* Barrel Diameter (ft) = 1.00 Minimum Tailwater Conditions: d0.5*Diameter of Outlet Pipe Since the Tailwater is less than half of the diameter of the outlet, use Minimum Tailwater conditions. Barrel Diameter (ft) 2
Entrance (ft) 6
Length (ft) 10
Outlet Width (ft) 12
Median Rip Rap Size d50 0.3
Ref 1, 8.06.3
Selected Rip Rap Size (in) Class A
Conclusion The basin can contain the 10-yr storm and pass the 100-yr storm without overtopping the berm.
SB 02.xlsx SB Dims
I Job No. 06985-10570-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow
Diameter of Riser (in) = Circumference of Riser (in) = Height of Riser from bottom of barrel (in) = Vertical spacing between holes (in) = Water Stage increment (ft)
60 188.5 62 0 0.05
l
Computed: PAW Date: 12/31/14 Checked: EAW Date: 1/2/15 Sheet 1 Of 2
From Hydrograph center to center
Orifice Equation Q = Cd * A * (2 * g * h)0.5 Q = cfs, discharge Cd = 0.6 coefficient of discharge A = sf, cross sectional area
Ref 1, p III-11
ft/sec2, gravity g = 32.2 h = ft, driving head measured from the center of the pipe
Row Holes per row Hole Diameter (in) Spacing edge to edge (in) Inlet Area (sf) Hole Stage (in) Hole Stage (ft)
1 0 0.75
2 0 0.75
Perforations 3 0 0.75
4 0 0.75
5 0 0.75
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
Skimmer 2
# of skimmers
Water Stage (ft) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Total Flow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.00 0.00 0.29 0.00 0.00 0.00 0.00 0.00 0.34 0.00 0.00 0.00 0.30 0.30 0.39 0.00 0.00 0.00 0.30 0.30 0.44 0.00 0.00 0.00 0.30 0.30 0.49 0.00 0.00 0.00 0.30 0.30 0.54 0.00 0.00 0.00 0.30 0.30 0.59 0.00 0.00 0.00 0.30 0.30 0.64 0.00 0.00 0.00 0.30 0.30 0.69 0.00 0.00 0.00 0.30 0.30 0.74 0.00 0.00 0.00 0.30 0.30 0.79 0.00 0.00 0.00 0.30 0.30 0.84 0.00 0.00 0.00 0.30 0.30 0.89 0.00 0.00 0.00 0.30 0.30 0.94 0.00 0.00 0.00 0.30 0.30 0.99 0.00 0.00 0.00 0.30 0.30 1.04 0.00 0.00 0.00 0.30 0.30 1.09 0.00 0.00 0.00 0.30 0.30 1.14 0.00 0.00 0.00 0.30 0.30 1.19 0.00 0.00 0.00 0.30 0.30 1.24 0.00 0.00 0.00 0.30 0.30 1.29 0.00 0.00 0.00 0.30 0.30 1.34 0.00 0.00 0.00 0.30 0.30 1.39 0.00 0.00 0.00 0.30 0.30 1.44 0.00 0.00 0.00 0.30 0.30 1.49 0.00 0.00 0.00 0.30 0.30 1.54 0.00 0.00 0.00 0.30 0.30 1.59 0.00 0.00 0.00 0.30 0.30 Pipe Perf-Skimmer
SB 02.xlsx
I Job No. 06985-10570-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow 1.64 1.69 1.74 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.59 2.64 2.69 2.74 2.79 2.84 2.89 2.94 2.99 3.04 3.09 3.14 3.19 3.24 3.29 3.34 3.39 3.44 3.49 3.54 3.59 3.64 3.69 3.74 3.79 3.84 3.89 3.94 3.99
Pipe Perf-Skimmer
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
l
Computed: PAW Date: 12/31/14 Checked: EAW Date: 1/2/15 Sheet 2 Of 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
SB 02.xlsx
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _1__of __2_
Sediment Basin # 2
Qp =
101.32
Tp =
28.19
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
cfs
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
Phase 1
2 24 3.2 5.2 6.0 7.0 15 60 0
10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
264.20 265.00 266.00
259.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.3 0 0.0 0.00 0.00 4.9 150 0.0 0.00 0.00 10.9 744 0.0 0.00 0.00 18.8 2,053 0.1 0.00 0.00 28.3 4,312 0.2 0.00 0.00 38.9 7,712 0.3 0.00 0.00 50.1 12,383 0.4 0.30 0.30 61.3 18,326 0.6 0.30 0.30 72.0 25,613 0.7 0.30 0.30 81.6 34,183 1.0 0.30 0.30 89.7 43,907 1.2 0.30 0.30 95.9 54,603 1.4 0.30 0.30 99.8 66,039 1.7 0.30 0.30 101.3 77,946 2.0 0.30 0.30 100.3 90,032 2.2 0.30 0.30 96.8 101,997 2.5 0.30 0.30 91.1 113,546 2.7 0.30 0.30 83.6 124,405 2.9 0.30 0.30 76.3 134,368 3.1 0.30 0.30 69.5 143,448 3.3 0.30 0.30 63.4 151,721 3.5 0.30 0.30 57.8 159,259 3.6 0.30 0.30 52.7 166,127 3.8 0.30 0.30 48.1 172,384 3.9 0.30 0.30 43.8 178,083 4.0 0.30 0.30 40.0 183,274 4.1 0.30 0.30 36.5 188,001 4.2 0.30 0.30 33.3 192,306 4.3 0.30 0.30 30.3 196,225 4.4 0.30 0.30 27.7 199,793 4.4 0.30 0.30 25.2 203,040 4.5 0.30 0.30 23.0 205,995 4.5 0.30 0.30 21.0 208,684 4.6 0.30 0.30 19.1 211,129 4.6 0.30 0.30 17.4 213,353 4.7 0.30 0.30 15.9 215,374 4.7 0.30 0.30 14.5 217,211 4.8 0.30 0.30 13.2 218,881 4.8 0.30 0.30 12.1 220,396 4.8 0.30 0.30 11.0 221,772 4.8 0.30 0.30 10.0 223,021 4.9 0.30 0.30
SB 02.xlsx
Colon
4.0E-03 2 100% 5.1 0.6 0.6 0.0
1.2 35,760
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 264.06 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59
Bound Discharge [cfs] 0.00 0.00 43.22 53.74 61.71 68.28 73.90 78.83 83.15 87.03 90.52 93.66 96.48 99.02 101.28 103.28 105.06 106.60 107.94 109.08 110.05 110.89 111.63 112.27 112.84 113.34 113.79 114.18 114.53 114.85 115.13 115.38 115.61 115.82 116.00 116.17 116.32 116.45 116.57 116.68 116.78 116.87
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 19,647 N/A 24,429 N/A 28,050 N/A 31,035 N/A 33,592 N/A 35,830 100% 37,796 100% 39,559 100% 41,145 100% 42,573 100% 43,856 100% 45,007 100% 46,035 100% 46,948 100% 47,752 100% 48,455 100% 49,062 100% 49,580 100% 50,023 100% 50,407 100% 50,741 100% 51,033 100% 51,291 100% 51,519 100% 51,721 100% 51,901 100% 52,061 100% 52,204 100% 52,332 100% 52,448 100% 52,551 100% 52,644 100% 52,727 100% 52,803 100% 52,871 100% 52,932 100% 52,987 100% 53,037 100% 53,082 100% 53,122 100% SB 10-yr (P1) HG
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _2__of __2_
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 02.xlsx
9.1 8.3 7.6 6.9 6.3 5.8 5.3 4.8 4.4 4.0 3.6 3.3 3.0 2.8 2.5 2.3 2.1 1.9 1.7 1.6 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.8 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0
224,153 225,180 226,110 226,951 227,712 228,400 229,021 229,581 230,086 230,540 230,947 231,313 231,640 231,932 232,192 232,422 232,627 232,807 232,965 233,102 233,222 233,325 233,412 233,485 233,546 233,595 233,634 233,663 233,683 233,695 233,700 233,698 233,690 233,676 233,658 233,634 233,607 233,576 233,541 233,503 233,463 233,419 233,373 233,325 233,275 233,223 233,170 233,115 233,058 233,000 232,941 232,881 232,821 232,759 232,696 232,633 232,569 232,504 232,439 232,373 232,307 232,241
4.9 4.9 4.9 4.9 4.9 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59
116.95 117.02 117.09 117.15 117.20 117.25 117.29 117.33 117.37 117.40 117.43 117.45 117.47 117.49 117.51 117.53 117.54 117.55 117.57 117.58 117.58 117.59 117.60 117.60 117.61 117.61 117.61 117.61 117.62 117.62 117.62 117.62 117.62 117.61 117.61 117.61 117.61 117.61 117.61 117.60 117.60 117.60 117.59 117.59 117.59 117.58 117.58 117.58 117.57 117.57 117.56 117.56 117.56 117.55 117.55 117.54 117.54 117.53 117.53 117.53 117.52 117.52
53,159 53,192 53,222 53,249 53,273 53,295 53,315 53,333 53,349 53,363 53,376 53,387 53,398 53,407 53,415 53,422 53,428 53,434 53,439 53,443 53,447 53,450 53,453 53,455 53,457 53,459 53,460 53,461 53,461 53,462 53,462 53,462 53,462 53,461 53,461 53,460 53,459 53,458 53,457 53,456 53,455 53,453 53,452 53,450 53,449 53,447 53,445 53,444 53,442 53,440 53,438 53,436 53,435 53,433 53,431 53,429 53,427 53,425 53,423 53,421 53,418 53,416
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #2 Colon Mine Phase 1 Hydrograph 10-Yr Storm
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: _1__of _2_
Qp = Tp =
79.90 30.89 2 1.0%
dT = Max of
or
Sediment Basin # 2
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 3.2 5.2 6 7 15 60 0
Phase 2 10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
264.20 265.00 266.00
259.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 0.8 0 0.0 0.00 0.00 3.3 99 0.0 0.00 0.00 7.2 490 0.0 0.00 0.00 12.5 1,355 0.1 0.00 0.00 18.9 2,856 0.1 0.00 0.00 26.2 5,129 0.2 0.00 0.00 34.1 8,277 0.3 0.00 0.00 42.2 12,368 0.4 0.30 0.30 50.2 17,361 0.5 0.30 0.30 57.8 23,316 0.7 0.30 0.30 64.6 30,180 0.9 0.30 0.30 70.5 37,867 1.1 0.30 0.30 75.1 46,254 1.2 0.30 0.30 78.2 55,190 1.5 0.30 0.30 79.7 64,502 1.7 0.30 0.30 79.6 73,999 1.9 0.30 0.30 77.9 83,486 2.1 0.30 0.30 74.6 92,765 2.3 0.30 0.30 69.9 101,650 2.5 0.30 0.30 64.4 109,968 2.6 0.30 0.30 59.2 117,628 2.8 0.30 0.30 54.4 124,663 2.9 0.30 0.30 50.0 131,124 3.1 0.30 0.30 46.0 137,059 3.2 0.30 0.30 42.3 142,508 3.3 0.30 0.30 38.9 147,512 3.4 0.30 0.30 35.7 152,106 3.5 0.30 0.30 32.9 156,324 3.6 0.30 0.30 30.2 160,196 3.7 0.30 0.30 27.8 163,749 3.7 0.30 0.30 25.5 167,010 3.8 0.30 0.30 23.5 170,002 3.8 0.30 0.30 21.6 172,746 3.9 0.30 0.30 19.8 175,264 3.9 0.30 0.30 18.2 177,572 4.0 0.30 0.30 16.8 179,689 4.0 0.30 0.30 15.4 181,628 4.1 0.30 0.30 14.2 183,406 4.1 0.30 0.30 13.0 185,034 4.1 0.30 0.30 12.0 186,525 4.2 0.30 0.30 11.0 187,891 4.2 0.30 0.30 10.1 189,140 4.2 0.30 0.30
SB 02.xlsx
Colon
WEIR FLOW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4.0E-03 2 100% 4.4 0.6 0.6 0.0
1.2 35,760
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 263.44 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
BARREL TOTAL Bound Estimated CAPACIT OUTFLOW Discharge Surface Y [cfs] [cfs] [cfs] Area (sf) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 40.82 18,555 0.00 0.00 50.77 23,077 0.00 0.00 58.32 26,507 0.00 0.00 64.55 29,341 0.00 0.00 69.91 31,776 0.00 0.00 74.62 33,917 0.30 0.59 78.81 35,825 0.30 0.59 82.54 37,518 0.30 0.59 85.92 39,056 0.30 0.59 89.00 40,453 0.30 0.59 91.79 41,723 0.30 0.59 94.33 42,876 0.30 0.59 96.62 43,920 0.30 0.59 98.70 44,863 0.30 0.59 100.56 45,710 0.30 0.59 102.23 46,467 0.30 0.59 103.71 47,139 0.30 0.59 105.01 47,730 0.30 0.59 106.14 48,245 0.30 0.59 107.12 48,689 0.30 0.59 107.97 49,076 0.30 0.59 108.71 49,415 0.30 0.59 109.37 49,714 0.30 0.59 109.95 49,978 0.30 0.59 110.47 50,214 0.30 0.59 110.93 50,424 0.30 0.59 111.35 50,612 0.30 0.59 111.72 50,781 0.30 0.59 112.05 50,933 0.30 0.59 112.35 51,070 0.30 0.59 112.63 51,194 0.30 0.59 112.87 51,306 0.30 0.59 113.10 51,407 0.30 0.59 113.30 51,499 0.30 0.59 113.48 51,582 0.30 0.59 113.65 51,657 0.30 0.59 113.80 51,726 0.30 0.59 113.93 51,788 0.30 0.59 114.06 51,845 0.30 0.59 114.17 51,896 0.30 0.59 114.28 51,943
Settling Efficiency [%] N/A N/A N/A N/A N/A N/A N/A N/A 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: _2__of _2_
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 02.xlsx
9.3 8.5 7.9 7.2 6.6 6.1 5.6 5.2 4.7 4.4 4.0 3.7 3.4 3.1 2.9 2.6 2.4 2.2 2.0 1.9 1.7 1.6 1.5 1.3 1.2 1.1 1.0 1.0 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
190,282 191,327 192,282 193,154 193,949 194,675 195,337 195,939 196,487 196,985 197,437 197,847 198,218 198,554 198,856 199,129 199,374 199,593 199,789 199,963 200,118 200,254 200,374 200,478 200,568 200,645 200,710 200,764 200,809 200,843 200,870 200,888 200,899 200,904 200,902 200,895 200,883 200,866 200,845 200,820 200,791 200,758 200,723 200,684 200,643 200,600 200,554 200,507 200,457 200,406 200,353 200,299 200,243 200,186 200,128 200,069 200,009 199,949 199,887 199,824
4.2 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59
114.37 114.45 114.53 114.60 114.67 114.73 114.78 114.83 114.87 114.91 114.95 114.98 115.01 115.03 115.06 115.08 115.10 115.12 115.13 115.14 115.16 115.17 115.18 115.19 115.19 115.20 115.20 115.21 115.21 115.21 115.22 115.22 115.22 115.22 115.22 115.22 115.22 115.22 115.21 115.21 115.21 115.21 115.20 115.20 115.20 115.19 115.19 115.19 115.18 115.18 115.18 115.17 115.17 115.16 115.16 115.15 115.15 115.14 115.14 115.13
51,986 52,025 52,060 52,092 52,121 52,148 52,172 52,194 52,214 52,232 52,248 52,263 52,276 52,288 52,299 52,309 52,318 52,325 52,332 52,339 52,344 52,349 52,353 52,357 52,360 52,363 52,365 52,367 52,369 52,370 52,371 52,371 52,372 52,372 52,372 52,372 52,371 52,371 52,370 52,369 52,368 52,367 52,366 52,364 52,363 52,361 52,360 52,358 52,356 52,354 52,352 52,351 52,349 52,347 52,344 52,342 52,340 52,338 52,336 52,334
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0 TOTAL OUTFLOW [cfs] INFLOW [cfs]
150
3.0
STAGE [ft] 100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE (ft)
FLOW (cfs)
Sediment Basin #2 Colon Mine Phase 2 Hydrograph 10-Yr Storm
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _1__of __2__
Qp = Tp = dT = Max of
or
98.71 31.23 2 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 3.2 5.2 6.0 7.0 15 60 0
Sediment Basin # 2
Phase 2 25 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
264.20 265.00 266.00
259.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 02.xlsx
Colon
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.0 0 0.0 0.00 0.00 3.9 119 0.0 0.00 0.00 8.7 592 0.0 0.00 0.00 15.1 1,639 0.1 0.00 0.00 22.9 3,455 0.1 0.00 0.00 31.8 6,208 0.2 0.00 0.00 41.4 10,024 0.3 0.00 0.00 51.3 14,988 0.5 0.30 0.30 61.1 21,069 0.6 0.30 0.30 70.4 28,328 0.8 0.30 0.30 78.9 36,708 1.0 0.30 0.30 86.2 46,108 1.2 0.30 0.30 92.0 56,384 1.5 0.30 0.30 96.1 67,357 1.7 0.30 0.30 98.3 78,821 2.0 0.30 0.30 98.6 90,550 2.2 0.30 0.30 96.8 102,307 2.5 0.30 0.30 93.1 113,853 2.7 0.30 0.30 87.7 124,958 2.9 0.30 0.30 81.0 135,412 3.2 0.30 0.30 74.6 145,066 3.4 0.30 0.30 68.6 153,944 3.5 0.30 0.30 63.1 162,107 3.7 0.30 0.30 58.1 169,612 3.8 0.30 0.30 53.5 176,512 4.0 0.30 0.30 49.2 182,855 4.1 0.30 0.30 45.3 188,686 4.2 0.30 0.30 41.6 194,045 4.3 0.30 0.30 38.3 198,971 4.4 0.30 0.30 35.3 203,497 4.5 0.30 0.30 32.4 207,656 4.6 0.30 0.30 29.8 211,478 4.6 0.30 0.30 27.5 214,988 4.7 0.30 0.30 25.3 218,212 4.8 0.30 0.30 23.2 221,173 4.8 0.30 0.30 21.4 223,892 4.9 0.30 0.30 19.7 226,388 4.9 0.30 0.30 18.1 228,679 5.0 0.30 0.30 16.7 230,782 5.0 0.30 0.30 15.3 232,710 5.0 0.30 0.30 14.1 234,479 5.1 0.30 0.30 13.0 236,101 5.1 0.30 0.30
4.0E-03 2 100% 5.3 3.8 3.8 0.0
1.2 35,760
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 264.3 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFL [cfs] [cfs] OW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59
Bound Discharge [cfs] 0.00 0.00 41.89 52.10 59.85 66.25 71.75 76.59 80.90 84.75 88.23 91.40 94.29 96.91 99.28 101.43 103.37 105.10 106.64 108.00 109.19 110.22 111.11 111.90 112.59 113.20 113.75 114.24 114.67 115.07 115.42 115.74 116.03 116.29 116.52 116.74 116.93 117.11 117.27 117.42 117.55 117.67 117.78
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 19,041 N/A 23,682 N/A 27,203 N/A 30,112 N/A 32,614 N/A 34,813 N/A 36,775 100% 38,521 100% 40,106 100% 41,547 100% 42,857 100% 44,048 100% 45,128 100% 46,105 100% 46,984 100% 47,772 100% 48,473 100% 49,092 100% 49,632 100% 50,100 100% 50,507 100% 50,863 100% 51,178 100% 51,457 100% 51,705 100% 51,926 100% 52,125 100% 52,303 100% 52,464 100% 52,608 100% 52,739 100% 52,858 100% 52,965 100% 53,062 100% 53,151 100% 53,231 100% 53,304 100% 53,371 100% 53,431 100% 53,486 100% 53,536 100% SB 25-yr HG (P2)
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _2__of __2__
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 02.xlsx
11.9 11.0 10.1 9.3 8.6 7.9 7.2 6.7 6.1 5.6 5.2 4.8 4.4 4.0 3.7 3.4 3.2 2.9 2.7 2.5 2.3 2.1 1.9 1.8 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.8 0.7 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
237,588 238,951 240,199 241,341 242,384 243,298 244,074 244,716 245,234 245,640 245,948 246,170 246,319 246,407 246,443 246,436 246,394 246,324 246,231 246,121 245,996 245,861 245,719 245,570 245,419 245,265 245,111 244,957 244,804 244,653 244,505 244,359 244,216 244,077 243,941 243,808 243,679 243,554 243,432 243,314 243,199 243,088 242,980 242,875 242,773 242,675 242,579 242,486 242,396 242,308 242,222 242,139 242,059 241,980 241,903 241,828 241,755 241,683 241,613 241,544 241,476
5.1 5.2 5.2 5.2 5.2 5.2 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
0.30 0.30 0.30 0.31 0.47 0.71 0.95 1.18 1.38 1.54 1.67 1.77 1.83 1.87 1.89 1.89 1.87 1.84 1.80 1.75 1.69 1.63 1.57 1.51 1.45 1.39 1.33 1.27 1.21 1.15 1.10 1.05 1.00 0.95 0.90 0.86 0.82 0.78 0.75 0.71 0.68 0.65 0.62 0.59 0.56 0.54 0.52 0.50 0.48 0.46 0.44 0.42 0.41 0.39 0.38 0.37 0.36 0.34 0.33 0.33 0.32
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.30 0.30 0.30 30.96 31.04 31.10 31.15 31.19 31.23 31.26 31.28 31.29 31.30 31.31 31.31 31.31 31.31 31.30 31.30 31.29 31.28 31.27 31.26 31.25 31.24 31.23 31.22 31.21 31.20 31.19 31.18 31.17 31.16 31.15 31.14 31.13 31.12 31.11 31.11 31.10 31.09 31.08 31.08 31.07 31.06 31.05 31.05 31.04 31.04 31.03 31.02 31.02 31.01 31.01 31.00 31.00 30.99 30.99 30.98 30.98 30.97
0.59 0.59 0.59 0.61 0.95 1.41 1.90 2.35 2.75 3.08 3.34 3.54 3.67 3.75 3.78 3.77 3.74 3.67 3.59 3.49 3.38 3.27 3.15 3.02 2.90 2.78 2.65 2.53 2.42 2.31 2.20 2.09 1.99 1.90 1.81 1.72 1.64 1.56 1.49 1.42 1.36 1.29 1.24 1.18 1.13 1.08 1.03 0.99 0.95 0.91 0.88 0.84 0.81 0.78 0.76 0.73 0.71 0.69 0.67 0.65 0.64
117.88 117.97 118.06 118.13 118.20 118.26 118.31 118.36 118.39 118.42 118.44 118.45 118.46 118.47 118.47 118.47 118.47 118.46 118.46 118.45 118.44 118.43 118.42 118.41 118.40 118.39 118.38 118.37 118.36 118.35 118.34 118.33 118.32 118.31 118.31 118.30 118.29 118.28 118.27 118.26 118.26 118.25 118.24 118.23 118.23 118.22 118.22 118.21 118.20 118.20 118.19 118.19 118.18 118.18 118.17 118.17 118.16 118.16 118.15 118.15 118.14
53,582 53,624 53,662 53,697 53,728 53,756 53,779 53,798 53,814 53,826 53,835 53,842 53,846 53,849 53,850 53,850 53,849 53,846 53,844 53,840 53,837 53,833 53,828 53,824 53,819 53,815 53,810 53,806 53,801 53,797 53,792 53,788 53,783 53,779 53,775 53,771 53,767 53,764 53,760 53,756 53,753 53,750 53,746 53,743 53,740 53,737 53,734 53,731 53,729 53,726 53,723 53,721 53,719 53,716 53,714 53,712 53,709 53,707 53,705 53,703 53,701
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 25-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
OUTFLOW INFLOW [cfs]
200
STAGE [ft]
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #2 Colon Mine Phase 2 Hydrograph 25-Yr Storm
Computed By: PAW Date: 12/31/14 Checked By: EAW
Date: 1/2/15
Sheet: _1__of __2_
Qp = Tp = dT = Max of
or
128.6 31.7 2 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 3.2 5.2 6.0 7.0 15 60 0
Sediment Basin # 2
Phase 2 100 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
264.20 265.00 266.00
259.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 02.xlsx
Colon
4.0E-03 2 94% 5.7 36.2 36.2 0.0
1.2 35,760
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 264.7 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
WEIR BARREL TOTAL Bound RISER INFLOW STORAGE STAGE Skimmer CAPACIT FLOW CAPACITY OUTFLOW Discharge [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] [cfs] [cfs] [cfs] [cfs] 0.0 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 1.3 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 5.0 151 0.0 0.00 0.00 0.00 0.00 0.00 43.25 11.0 749 0.0 0.00 0.00 0.00 0.00 0.00 53.79 19.2 2,073 0.1 0.00 0.00 0.00 0.00 0.00 61.79 29.1 4,373 0.2 0.00 0.00 0.00 0.00 0.00 68.41 40.3 7,860 0.3 0.00 0.00 0.00 0.00 0.00 74.09 52.6 12,701 0.4 0.30 0.30 0.00 0.30 0.59 79.10 65.2 18,937 0.6 0.30 0.30 0.00 0.30 0.59 83.52 77.9 26,695 0.8 0.30 0.30 0.00 0.30 0.59 87.52 90.0 35,969 1.0 0.30 0.30 0.00 0.30 0.59 91.15 101.1 46,697 1.3 0.30 0.30 0.00 0.30 0.59 94.45 110.8 58,757 1.5 0.30 0.30 0.00 0.30 0.59 97.45 118.6 71,978 1.8 0.30 0.30 0.00 0.30 0.59 100.18 124.3 86,141 2.1 0.30 0.30 0.00 0.30 0.59 102.67 127.7 100,990 2.5 0.30 0.30 0.00 0.30 0.59 104.91 128.6 116,245 2.8 0.30 0.30 0.00 0.30 0.59 106.94 127.0 131,608 3.1 0.30 0.30 0.00 0.30 0.59 108.77 122.9 146,777 3.4 0.30 0.30 0.00 0.30 0.59 110.40 116.6 161,457 3.7 0.30 0.30 0.00 0.30 0.59 111.84 108.3 175,373 3.9 0.30 0.30 0.00 0.30 0.59 113.10 99.8 188,302 4.2 0.30 0.30 0.00 0.30 0.59 114.21 91.9 200,207 4.4 0.30 0.30 0.00 0.30 0.59 115.16 84.7 211,170 4.6 0.30 0.30 0.00 0.30 0.59 116.00 78.0 221,264 4.8 0.30 0.30 0.00 0.30 0.59 116.74 71.9 230,557 5.0 0.30 0.30 0.00 0.30 0.59 117.40 66.2 239,114 5.2 0.30 0.30 0.00 0.30 0.59 117.98 61.0 246,992 5.3 0.30 2.14 0.00 31.35 4.29 118.51 56.2 253,800 5.4 0.30 6.18 0.00 31.80 12.37 118.95 51.8 259,062 5.5 0.30 10.20 0.00 32.15 20.40 119.28 47.7 262,830 5.6 0.30 13.47 0.00 32.40 26.93 119.51 44.0 265,324 5.6 0.30 15.79 0.00 32.56 31.58 119.67 40.5 266,810 5.7 0.30 17.23 0.00 32.65 34.46 119.76 37.3 267,535 5.7 0.30 17.95 0.00 32.70 35.90 119.80 34.4 267,705 5.7 0.30 18.12 0.00 32.71 36.24 119.81 31.7 267,482 5.7 0.30 17.89 0.00 32.70 35.79 119.80 29.2 266,988 5.7 0.30 17.40 0.00 32.66 34.81 119.77 26.9 266,312 5.7 0.30 16.74 0.00 32.62 33.48 119.73 24.8 265,519 5.7 0.30 15.98 0.00 32.57 31.95 119.68 22.8 264,657 5.6 0.30 15.16 0.00 32.51 30.31 119.63 21.0 263,757 5.6 0.30 14.32 0.00 32.46 28.63 119.57 19.4 262,844 5.6 0.30 13.48 0.00 32.40 26.96 119.51 17.8 261,933 5.6 0.30 12.66 0.00 32.34 25.32 119.46
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 19,658 N/A 24,451 N/A 28,087 N/A 31,093 N/A 33,679 N/A 35,954 100% 37,965 100% 39,783 100% 41,432 100% 42,932 100% 44,296 100% 45,538 100% 46,666 100% 47,688 100% 48,611 100% 49,440 100% 50,180 100% 50,836 100% 51,411 100% 51,912 100% 52,347 100% 52,729 100% 53,065 100% 53,363 100% 53,629 100% 53,866 100% 54,066 99% 54,218 98% 54,324 96% 54,394 95% 54,436 94% 54,456 94% 54,461 94% 54,454 94% 54,441 94% 54,422 94% 54,400 95% 54,376 95% 54,350 96% 54,325 96% 54,299 96% SB 100-yr HG (P2)
Computed By: PAW Date: 12/31/14 Checked By: EAW
Date: 1/2/15
Sheet: _2__of __2_
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 02.xlsx
16.4 15.1 14.0 12.9 11.8 10.9 10.0 9.3 8.5 7.9 7.2 6.7 6.1 5.7 5.2 4.8 4.4 4.1 3.8 3.5 3.2 2.9 2.7 2.5 2.3 2.1 1.9 1.8 1.7 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1
261,035 260,158 259,307 258,485 257,693 256,932 256,203 255,505 254,838 254,201 253,592 253,012 252,458 251,930 251,426 250,946 250,488 250,052 249,635 249,238 248,860 248,499 248,154 247,825 247,511 247,212 246,926 246,652 246,391 246,142 245,904 245,676 245,457 245,249 245,049 244,858 244,675 244,499 244,331 244,169 244,015 243,866 243,723 243,586 243,454 243,327 243,205 243,087 242,974 242,865 242,759 242,657 242,559 242,464 242,371 242,282 242,196 242,112 242,030 241,951
5.6 5.6 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
11.87 11.12 10.40 9.73 9.09 8.49 7.93 7.41 6.92 6.46 6.04 5.64 5.27 4.93 4.61 4.31 4.03 3.77 3.53 3.31 3.10 2.90 2.72 2.55 2.40 2.25 2.11 1.99 1.87 1.76 1.65 1.56 1.47 1.38 1.30 1.23 1.16 1.10 1.04 0.98 0.93 0.88 0.83 0.79 0.75 0.71 0.68 0.65 0.62 0.59 0.56 0.54 0.51 0.49 0.47 0.45 0.43 0.42 0.40 0.39
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
32.28 32.22 32.17 32.11 32.06 32.01 31.96 31.92 31.87 31.83 31.79 31.75 31.71 31.68 31.65 31.61 31.58 31.55 31.53 31.50 31.47 31.45 31.43 31.40 31.38 31.36 31.34 31.33 31.31 31.29 31.27 31.26 31.24 31.23 31.22 31.20 31.19 31.18 31.17 31.16 31.15 31.14 31.13 31.12 31.11 31.10 31.09 31.08 31.08 31.07 31.06 31.05 31.05 31.04 31.03 31.03 31.02 31.02 31.01 31.01
23.74 22.24 20.80 19.45 18.18 16.98 15.86 14.82 13.84 12.93 12.08 11.29 10.55 9.86 9.22 8.62 8.06 7.55 7.07 6.62 6.20 5.81 5.45 5.11 4.79 4.50 4.23 3.97 3.73 3.51 3.30 3.11 2.93 2.76 2.61 2.46 2.32 2.19 2.07 1.96 1.86 1.76 1.67 1.58 1.50 1.43 1.36 1.29 1.23 1.17 1.12 1.07 1.02 0.98 0.94 0.90 0.87 0.83 0.80 0.77
119.40 119.35 119.29 119.24 119.19 119.14 119.10 119.05 119.01 118.97 118.93 118.90 118.86 118.83 118.79 118.76 118.73 118.70 118.68 118.65 118.63 118.60 118.58 118.56 118.54 118.52 118.50 118.48 118.47 118.45 118.43 118.42 118.41 118.39 118.38 118.37 118.35 118.34 118.33 118.32 118.31 118.30 118.29 118.28 118.27 118.26 118.26 118.25 118.24 118.23 118.23 118.22 118.21 118.21 118.20 118.20 118.19 118.18 118.18 118.17
54,274 54,249 54,225 54,201 54,178 54,157 54,136 54,116 54,096 54,078 54,060 54,043 54,027 54,012 53,997 53,983 53,970 53,957 53,945 53,933 53,922 53,911 53,901 53,891 53,882 53,873 53,864 53,856 53,848 53,841 53,834 53,827 53,821 53,814 53,808 53,803 53,797 53,792 53,787 53,782 53,777 53,773 53,769 53,765 53,761 53,757 53,753 53,750 53,746 53,743 53,740 53,737 53,734 53,731 53,728 53,725 53,723 53,720 53,718 53,715
97% 97% 97% 98% 98% 98% 98% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 100-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
OUTFLOW 250
INFLOW [cfs]
5.0
STAGE [ft] 200
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #2 Colon Mine Phase 2 Hydrograph 100-Yr Storm
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #3
Sheet: 1
Of: 4
Objective
Design the temporary sediment basin to contain the 25-year storm.
References 1. NC Erosion and Sediment Control Planning and Design Manual. 2. "Elements of Urban Stormwater Design" by H. Rooney Malcom, P.E. 3. NOAA Atlas 14, Volume 2, Version 3 4. VA Erosion and Sediment Control Handbook Given Phase Storm Event (yrs) = Total Drainage Area A (ac) = Disturbed Area (ac) = Curve Number CN = Rainfall Depth P (in) = Peak Flow Qp (cfs) =
1 10 3.1 3.1 91 5.28 20.57
1 25 3.1 3.1 91 6.28 24.96
Hydrographs (24-hr rainfall) Hydrographs
Ref 3
Design Criteria Required sediment storage Required sediment storage
1,800 5,580
cf / acre of drainage cf
Required Surface Area Required Surface Area (SF)
435 8,948
sf/cfs of the 10-yr storm peak flow (based on the largest Phase in cfs) of the 10-yr storm peak flow (based on the largest Phase)
Determine Shape of Basin: Measure the area of the Basin using AutoCADD. Calculate Volume of the Basin using Truncated Pyramid Method. Shape factor used in hydrographs basin depth may be gretaer than indicated below
Elevation (ft) 244 244 245 246 247 248 249 250
Depth (ft) 0 0 1 2 3 4 5 6
Area (sf) 0 4,877 6,254 7,709 9,244 10,857 12,549 14,321
Volume (cf) 0 5,551 6,969 8,465 10,040 11,693 13,425
Design Sediment Depth (ft) = 3 Sediment Storage (cf) = 20,985 Design Surface Area Depth (ft) = 3 Surface Area (sf) = 9,244
Cumulative Vol (cf) 0 5,551 12,520 20,985 31,025 42,717 56,143
Cumulative Vol (cy) 0 206 464 777 1,149 1,582 2,079
Required Sediment Storage Achieved
Required Surface Area Achieved
SB Dims SB 03
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #3
Sheet: 2
Of: 4
Select Skimmer A. R. Jarrett Method D = [Q / (2,310 * (H 0.5)]0.5 D =Diameter of Orifice (inches) Q = Dewater Rate (cf/day) H = Head on orifice, varies based on skimmer size (ft) Skimmer Sizes (Inches) 1.5 2 2.5 3 4 5 6 8
Head (ft) 0.125 0.167 0.167 0.250 0.333 0.333 0.417 0.500
Volume to Dewater (cf) = Number of Skimmers Days to Drain = Q each (cf/day) =
20,985 1 5 4,197
Selected Skimmer Size (inches) = Head on Skimmer (feet) = Diameter of Orifice (inches) =
2.5 0.208 2.0
assumed 0.05 cfs
Route the flow through the Basin Riser is not perforated, but skimmer is attached. S = (1000/CN) - 10 2 Runoff Depth Q* (inches) = (P-0.2S) /(P+0.8S) TP (min) = 60.5(Q*)A/QP/1.39
Phase Storm Event (yrs) = S= Runoff Depth Q* (inches) = Time to Peak T p (min) =
1 10 0.99 4.25 27.91
1 25 0.99 5.23 28.28
Determine Pond Storage Elevation (Z Water): Pick one point near max expected water surface and the other at the mid depth. Z1 (ft) = 3 S1 (cf)= 20,985 Z2 (ft) = 6 S2 (cf) = 56,143 b = ln(S2/S1)/ln(Z2/Z1) = 1.4 b
KS = S2/Z2 =
Ref 2, III-4
Ref 2, III-8
4,411
SB Dims SB 03
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #3
Sheet: 3
Of: 4
Determine Settling Velocity Conversion Factor =
3.281 ft/sec per m/sec
2
Gravitational Acceleration, g (m/s ) = Specific Gravity of soil (ss)=
9.81 2.6 2 o 1.14E-06m / sec @ 20 C 40.00E-06 m
Kinematic Viscosity of water (v) = Diameter of the Design Particle d 15 = Design Particle Settling Velocity
=
( g / 18 ) * [ ( s s
Route the Storm through the Basin using the Hydrograph Model Set Height of Emergency Spillway at (ft) = 5.00 Set Top of Dam at (ft) = 6.00
Ref 2, IV-11
- 1 ) / v ] d2 =
4.02E-03
ft/sec
See Hydrograph
Anti-Seep Collar: Anti-Seep Collar Size = 2 * Barrel Dia Anti-Seep Collar Size (ft) = 2 Use Anti-Seep Collar Size (ft) = 2 Minimum Concrete Base for Riser: Diameter of Riser (in) = 24 Avg Density of Concrete (lbs/cf) = Density of Water (lbs/cf) = Riser Displacement (cf) = 13.82 Convert cf to cy = Min Concrete Needed (cy) = Width & Length (ft) = Thickness (ft) = Anti-Vortex Device: Diameter of Riser (in) = Cylinder Diameter (in) = Cylinder Thickness (gage) = Cylinder Height (in) =
x2
From Hydrograph 87.6 62.4 Pi * (DR/24)2 * Total Ht of Riser
27-1 0.36 3 1.1
24 36 16 13
From Hydrograph Ref 4, III-104, Table 3.14-D
SB Dims SB 03
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #3
Sheet: 4
Of: 4
Determine Tailwater conditions to size outlet apron Use Normal Depth Procedure (Manning's Eqn.) A*R2/3 = Q*n/1.49 s0.5
Area (A)= bd+z(d^2)
Z req = Q*n/1.49s0.5
R=Area/(b+2d((z^2)+1)^.5)
n= Vp (ft/sec) = Side Slope (z) = s (ft/ft) = Bottom Width (ft) = QB (cfs) =
Q (cfs) 4.1
Zreq 1.34
0.069 9 5 0.02 3 4.1 Flow Depth d (ft) 0.50
Ref 2, II-7
Zav = A*R2/3
6-inch diameter Rip Rap, Lined Channel Permissible Velocity for lining enter X for X:1 Outlet Slope (estimated) 3 * Barrel Diameter Peak Flow out of the barrel 10-yr Hydrograph
A (sf) 2.8
R (ft) 0.34
Zav 1.34
Flow Depth = Tailwater, d (ft) = 0.50 0.5* Barrel Diameter (ft) = 0.50 Minimum Tailwater Conditions: d0.5*Diameter of Outlet Pipe Since the Tailwater is less than half of the diameter of the outlet, use Minimum Tailwater conditions. Barrel Diameter (ft) 1
Entrance (ft) 3
Length (ft) 8
Outlet Width (ft) 9
Median Rip Rap Size d50 0.4
V (ft/sec) 1.5 Ref 1, 8.06.3
Selected Rip Rap Size (in) Class A
Conclusion The temporary basin can contain the 25-yr storm.
SB Dims SB 03
I Job No. 0453925-237673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow
Diameter of Riser (in) = Circumference of Riser (in) = Height of Riser from bottom of barrel (in) = Vertical spacing between holes (in) = Water Stage increment (ft)
24 75.4 53 0 0.05
l
Computed: PAW Date: 3/4/15 Checked: MDP Date: 3/6/15 Sheet 1 Of 2
From Hydrograph center to center
Orifice Equation Q = Cd * A * (2 * g * h)0.5 Q = cfs, discharge Cd = 0.6 coefficient of discharge A = sf, cross sectional area
Ref 1, p III-11
ft/sec2, gravity g = 32.2 h = ft, driving head measured from the center of the pipe
Row Holes per row Hole Diameter (in) Spacing edge to edge (in) Inlet Area (sf) Hole Stage (in) Hole Stage (ft)
1 0 0.75
2 0 0.75
Perforations 3 0 0.75
4 0 0.75
5 0 0.75
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
Skimmer 1
# of skimmers
Water Stage (ft) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Total Flow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.05 0.05 0.29 0.00 0.00 0.00 0.05 0.05 0.34 0.00 0.00 0.00 0.05 0.05 0.39 0.00 0.00 0.00 0.05 0.05 0.44 0.00 0.00 0.00 0.05 0.05 0.49 0.00 0.00 0.00 0.05 0.05 0.54 0.00 0.00 0.00 0.05 0.05 0.59 0.00 0.00 0.00 0.05 0.05 0.64 0.00 0.00 0.00 0.05 0.05 0.69 0.00 0.00 0.00 0.05 0.05 0.74 0.00 0.00 0.00 0.05 0.05 0.79 0.00 0.00 0.00 0.05 0.05 0.84 0.00 0.00 0.00 0.05 0.05 0.89 0.00 0.00 0.00 0.05 0.05 0.94 0.00 0.00 0.00 0.05 0.05 0.99 0.00 0.00 0.00 0.05 0.05 1.04 0.00 0.00 0.00 0.05 0.05 1.09 0.00 0.00 0.00 0.05 0.05 1.14 0.00 0.00 0.00 0.05 0.05 1.19 0.00 0.00 0.00 0.05 0.05 1.24 0.00 0.00 0.00 0.05 0.05 1.29 0.00 0.00 0.00 0.05 0.05 1.34 0.00 0.00 0.00 0.05 0.05 1.39 0.00 0.00 0.00 0.05 0.05 1.44 0.00 0.00 0.00 0.05 0.05 1.49 0.00 0.00 0.00 0.05 0.05 1.54 0.00 0.00 0.00 0.05 0.05 1.59 0.00 0.00 0.00 0.05 0.05 SB 03
Pipe Perf-Skimmer
I Job No. 0453925-237673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow 1.64 1.69 1.74 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.59 2.64 2.69 2.74 2.79 2.84 2.89 2.94 2.99 3.04 3.09 3.14 3.19 3.24 3.29 3.34 3.39 3.44 3.49 3.54 3.59 3.64 3.69 3.74 3.79 3.84 3.89 3.94 3.99
SB 03
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
l
Computed: PAW Date: 3/4/15 Checked: MDP Date: 3/6/15 Sheet 2 Of 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05
0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05
Pipe Perf-Skimmer
Computed By: PAW Date: 3/05/15 Checked By: MDP Date: 3/06/15 Sheet: __1__of _2___
Sediment Basin #
Qp =
20.57
cfs
Tp =
27.91
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
SB 03
Colon
1 12 3.4 4.4 5.0 6.0 10 24 0
10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
248.40 249.00 250.00
244.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
3
Phase 1
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 0.3 0 0.0 0.00 0.00 1.0 31 0.0 0.00 0.00 2.3 154 0.1 0.00 0.00 3.9 425 0.2 0.00 0.00 5.9 893 0.3 0.05 0.05 8.0 1,590 0.5 0.05 0.05 10.3 2,549 0.7 0.05 0.05 12.6 3,784 0.9 0.05 0.05 14.8 5,294 1.1 0.05 0.05 16.8 7,066 1.4 0.05 0.05 18.4 9,071 1.7 0.05 0.05 19.6 11,271 1.9 0.05 0.05 20.3 13,616 2.2 0.05 0.05 20.6 16,050 2.5 0.05 0.05 20.3 18,513 2.7 0.05 0.05 19.5 20,941 3.0 0.05 0.05 18.2 23,275 3.2 0.05 0.05 16.7 25,458 3.4 0.05 0.05 15.2 27,455 3.6 0.05 0.05 13.9 29,273 3.8 0.05 0.05 12.6 30,929 3.9 0.05 0.05 11.5 32,438 4.1 0.05 0.05 10.5 33,811 4.2 0.05 0.05 9.5 35,062 4.3 0.05 0.05 8.7 36,201 4.4 0.05 0.06 7.9 37,238 4.5 0.05 0.64 7.2 38,111 4.6 0.05 1.47 6.6 38,801 4.6 0.05 2.27 6.0 39,318 4.7 0.05 2.94 5.5 39,684 4.7 0.05 3.44 5.0 39,926 4.7 0.05 3.79 4.5 40,068 4.7 0.05 4.00 4.1 40,131 4.7 0.05 4.09 3.8 40,135 4.7 0.05 4.10 3.4 40,094 4.7 0.05 4.04 3.1 40,020 4.7 0.05 3.93 2.8 39,923 4.7 0.05 3.79 2.6 39,810 4.7 0.05 3.62 2.4 39,686 4.7 0.05 3.44 2.1 39,556 4.7 0.05 3.26 2.0 39,422 4.7 0.05 3.08
4.0E-03 2 98% 4.7 4.1 4.1 0.0
1.4 4,411
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 248.74 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 7.46 0.06 0.00 7.54 0.64 0.00 7.61 1.47 0.00 7.67 2.27 0.00 7.71 2.94 0.00 7.74 3.44 0.00 7.76 3.79 0.00 7.77 4.00 0.00 7.77 4.09 0.00 7.77 4.10 0.00 7.77 4.04 0.00 7.76 3.93 0.00 7.76 3.79 0.00 7.75 3.62 0.00 7.74 3.44 0.00 7.73 3.26 0.00 7.72 3.08
Bound Discharge [cfs] 0.00 0.00 3.19 5.11 6.90 8.59 10.19 11.72 13.17 14.54 15.84 17.05 18.18 19.23 20.18 21.05 21.83 22.53 23.13 23.66 24.11 24.50 24.85 25.16 25.43 25.67 25.89 26.06 26.20 26.30 26.38 26.42 26.45 26.46 26.47 26.46 26.44 26.42 26.40 26.38 26.35 26.33
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 1,448 N/A 2,323 N/A 3,136 N/A 3,905 100% 4,631 100% 5,325 100% 5,985 100% 6,610 100% 7,198 100% 7,750 100% 8,264 100% 8,739 100% 9,174 100% 9,570 100% 9,925 100% 10,240 100% 10,515 100% 10,752 100% 10,958 100% 11,138 100% 11,296 100% 11,435 100% 11,559 100% 11,668 100% 11,766 100% 11,847 100% 11,910 99% 11,957 99% 11,990 98% 12,011 98% 12,024 98% 12,029 98% 12,030 98% 12,026 98% 12,020 98% 12,011 98% 12,001 98% 11,990 98% 11,978 99% 11,966 99% SB 10-yr (P1) HG
Computed By: PAW Date: 3/05/15 Checked By: MDP Date: 3/06/15 Sheet: __2__of _2___
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 03
1.8 1.6 1.5 1.3 1.2 1.1 1.0 0.9 0.8 0.8 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
39,288 39,155 39,023 38,896 38,771 38,651 38,536 38,425 38,318 38,217 38,119 38,027 37,938 37,854 37,774 37,698 37,625 37,556 37,490 37,428 37,369 37,312 37,258 37,207 37,159 37,112 37,068 37,026 36,987 36,949 36,912 36,878 36,845 36,814 36,784 36,755 36,728 36,702 36,677 36,653 36,631 36,609 36,588 36,568 36,549 36,531 36,513 36,497 36,481 36,465 36,450 36,436 36,422 36,409 36,396 36,384 36,372 36,361 36,350 36,339 36,329 36,319
4.7 4.7 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4
0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05
2.89 2.72 2.55 2.38 2.23 2.08 1.94 1.82 1.69 1.58 1.48 1.38 1.28 1.20 1.12 1.05 0.98 0.91 0.85 0.80 0.75 0.70 0.66 0.61 0.58 0.54 0.51 0.48 0.45 0.42 0.40 0.37 0.35 0.33 0.31 0.30 0.28 0.26 0.25 0.24 0.22 0.21 0.20 0.19 0.18 0.17 0.16 0.16 0.15 0.14 0.14 0.13 0.12 0.12 0.11 0.11 0.10 0.10 0.10 0.09 0.09 0.09
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
7.71 7.70 7.69 7.68 7.67 7.66 7.65 7.64 7.63 7.62 7.62 7.61 7.60 7.59 7.59 7.58 7.58 7.57 7.57 7.56 7.56 7.55 7.55 7.54 7.54 7.53 7.53 7.53 7.52 7.52 7.52 7.52 7.51 7.51 7.51 7.51 7.50 7.50 7.50 7.50 7.50 7.49 7.49 7.49 7.49 7.49 7.49 7.49 7.48 7.48 7.48 7.48 7.48 7.48 7.48 7.48 7.47 7.47 7.47 7.47 7.47 7.47
2.89 2.72 2.55 2.38 2.23 2.08 1.94 1.82 1.69 1.58 1.48 1.38 1.28 1.20 1.12 1.05 0.98 0.91 0.85 0.80 0.75 0.70 0.66 0.61 0.58 0.54 0.51 0.48 0.45 0.42 0.40 0.37 0.35 0.33 0.31 0.30 0.28 0.26 0.25 0.24 0.22 0.21 0.20 0.19 0.18 0.17 0.16 0.16 0.15 0.14 0.14 0.13 0.12 0.12 0.11 0.11 0.10 0.10 0.10 0.09 0.09 0.09
26.30 26.27 26.25 26.22 26.20 26.17 26.15 26.13 26.11 26.08 26.07 26.05 26.03 26.01 26.00 25.98 25.96 25.95 25.94 25.92 25.91 25.90 25.89 25.88 25.87 25.86 25.85 25.84 25.83 25.83 25.82 25.81 25.80 25.80 25.79 25.79 25.78 25.77 25.77 25.76 25.76 25.76 25.75 25.75 25.74 25.74 25.74 25.73 25.73 25.73 25.72 25.72 25.72 25.71 25.71 25.71 25.71 25.70 25.70 25.70 25.70 25.70
11,954 11,942 11,930 11,919 11,907 11,896 11,886 11,876 11,866 11,857 11,848 11,839 11,831 11,823 11,816 11,809 11,802 11,796 11,790 11,784 11,778 11,773 11,768 11,763 11,759 11,754 11,750 11,746 11,743 11,739 11,736 11,732 11,729 11,726 11,724 11,721 11,718 11,716 11,714 11,711 11,709 11,707 11,705 11,703 11,701 11,700 11,698 11,696 11,695 11,693 11,692 11,691 11,689 11,688 11,687 11,686 11,685 11,684 11,683 11,682 11,681 11,680
99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #3 Colon Mine Phase 1 Hydrograph 10-Yr Storm
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Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: __1__of _2___
Sediment Basin #
Qp =
24.96
cfs
Tp =
28.28
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
SB 03
Colon
1 12 3.4 4.4 5.0 6.0 10 24 0
25 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
248.40 249.00 250.00
244.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
3
Phase 1
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 0.3 0 0.0 0.00 0.00 1.2 37 0.0 0.00 0.00 2.7 182 0.1 0.00 0.00 4.6 503 0.2 0.00 0.00 6.9 1,056 0.4 0.05 0.05 9.5 1,883 0.5 0.05 0.05 12.3 3,022 0.8 0.05 0.05 15.0 4,491 1.0 0.05 0.05 17.7 6,290 1.3 0.05 0.05 20.0 8,404 1.6 0.05 0.05 22.0 10,803 1.9 0.05 0.05 23.6 13,443 2.2 0.05 0.05 24.6 16,266 2.5 0.05 0.05 25.0 19,208 2.8 0.05 0.05 24.7 22,196 3.1 0.05 0.05 23.9 25,158 3.4 0.05 0.05 22.5 28,022 3.7 0.05 0.05 20.7 30,719 3.9 0.05 0.05 18.9 33,197 4.1 0.05 0.05 17.2 35,458 4.3 0.05 0.05 15.7 37,519 4.5 0.05 0.88 14.3 39,299 4.7 0.05 2.91 13.1 40,670 4.8 0.05 4.93 11.9 41,648 4.9 0.05 6.55 10.9 42,292 4.9 0.05 7.70 9.9 42,673 4.9 0.05 8.41 9.1 42,908 5.0 0.05 8.85 8.3 43,037 5.0 0.05 9.10 7.5 43,069 5.0 0.05 9.16 6.9 43,014 5.0 0.05 9.06 6.3 42,880 5.0 0.05 8.80 5.7 42,675 4.9 0.05 8.41 5.2 42,405 4.9 0.05 7.91 4.8 42,082 4.9 0.05 7.32 4.3 41,774 4.9 0.05 6.77 4.0 41,481 4.8 0.05 6.27 3.6 41,204 4.8 0.05 5.80 3.3 40,941 4.8 0.05 5.36 3.0 40,693 4.8 0.05 4.96 2.7 40,457 4.8 0.05 4.59 2.5 40,235 4.7 0.05 4.25
4.0E-03 2 94% 5.0 8.0 8.0 0.0
1.4 4,411
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 248.98 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 7.57 0.88 0.00 7.71 2.91 0.00 7.81 4.93 0.00 7.89 6.55 0.00 7.93 7.70 0.00 7.96 7.96 0.00 7.98 7.98 0.00 7.99 7.99 0.00 7.99 7.99 0.00 7.99 7.99 0.00 7.98 7.98 0.00 7.96 7.96 0.00 7.94 7.91 0.00 7.92 7.32 0.00 7.89 6.77 0.00 7.87 6.27 0.00 7.85 5.80 0.00 7.83 5.36 0.00 7.81 4.96 0.00 7.80 4.59 0.00 7.78 4.25
Bound Discharge [cfs] 0.00 0.00 3.35 5.37 7.25 9.03 10.71 12.32 13.85 15.30 16.67 17.95 19.15 20.26 21.28 22.21 23.05 23.80 24.45 25.02 25.51 25.94 26.30 26.57 26.76 26.88 26.95 26.99 27.02 27.02 27.01 26.99 26.95 26.90 26.84 26.78 26.72 26.67 26.62 26.57 26.53 26.48
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 1,521 N/A 2,441 N/A 3,295 N/A 4,104 100% 4,869 100% 5,600 100% 6,296 100% 6,955 100% 7,577 100% 8,161 100% 8,706 100% 9,211 100% 9,675 100% 10,097 100% 10,478 100% 10,817 100% 11,115 100% 11,373 100% 11,597 100% 11,792 100% 11,955 99% 12,077 97% 12,162 96% 12,217 94% 12,250 94% 12,270 94% 12,281 94% 12,283 94% 12,279 94% 12,267 94% 12,250 94% 12,227 94% 12,199 95% 12,173 95% 12,148 96% 12,124 96% 12,101 97% 12,079 97% 12,058 97% 12,039 98% SB 25-yr (P1) HG
Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: __2__of _2___
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 03
2.3 2.1 1.9 1.7 1.6 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.8 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
40,025 39,826 39,638 39,461 39,293 39,134 38,984 38,842 38,708 38,581 38,460 38,347 38,239 38,137 38,041 37,949 37,863 37,780 37,703 37,629 37,559 37,492 37,429 37,370 37,313 37,259 37,208 37,159 37,113 37,069 37,027 36,987 36,949 36,913 36,878 36,846 36,814 36,784 36,756 36,729 36,703 36,678 36,654 36,632 36,610 36,589 36,569 36,550 36,532 36,515 36,498 36,482 36,466 36,451 36,437 36,423 36,410 36,397 36,385 36,373 36,362 36,351
4.7 4.7 4.7 4.7 4.7 4.7 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4
0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05
3.94 3.64 3.38 3.13 2.90 2.69 2.50 2.32 2.15 2.00 1.86 1.73 1.61 1.49 1.39 1.30 1.21 1.13 1.05 0.98 0.92 0.86 0.80 0.75 0.70 0.66 0.61 0.58 0.54 0.51 0.48 0.45 0.42 0.40 0.37 0.35 0.33 0.31 0.30 0.28 0.26 0.25 0.24 0.22 0.21 0.20 0.19 0.18 0.17 0.16 0.16 0.15 0.14 0.14 0.13 0.12 0.12 0.11 0.11 0.11 0.10 0.10
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
7.76 7.75 7.73 7.72 7.71 7.69 7.68 7.67 7.66 7.65 7.64 7.63 7.62 7.62 7.61 7.60 7.59 7.59 7.58 7.58 7.57 7.57 7.56 7.56 7.55 7.55 7.54 7.54 7.53 7.53 7.53 7.52 7.52 7.52 7.52 7.51 7.51 7.51 7.51 7.50 7.50 7.50 7.50 7.50 7.49 7.49 7.49 7.49 7.49 7.49 7.49 7.48 7.48 7.48 7.48 7.48 7.48 7.48 7.48 7.47 7.47 7.47
3.94 3.64 3.38 3.13 2.90 2.69 2.50 2.32 2.15 2.00 1.86 1.73 1.61 1.49 1.39 1.30 1.21 1.13 1.05 0.98 0.92 0.86 0.80 0.75 0.70 0.66 0.61 0.58 0.54 0.51 0.48 0.45 0.42 0.40 0.37 0.35 0.33 0.31 0.30 0.28 0.26 0.25 0.24 0.22 0.21 0.20 0.19 0.18 0.17 0.16 0.16 0.15 0.14 0.14 0.13 0.12 0.12 0.11 0.11 0.11 0.10 0.10
26.44 26.40 26.37 26.33 26.30 26.27 26.24 26.21 26.18 26.16 26.13 26.11 26.09 26.07 26.05 26.03 26.01 26.00 25.98 25.97 25.95 25.94 25.92 25.91 25.90 25.89 25.88 25.87 25.86 25.85 25.84 25.83 25.83 25.82 25.81 25.80 25.80 25.79 25.79 25.78 25.78 25.77 25.76 25.76 25.76 25.75 25.75 25.74 25.74 25.74 25.73 25.73 25.73 25.72 25.72 25.72 25.71 25.71 25.71 25.71 25.70 25.70
12,020 12,002 11,985 11,970 11,955 11,940 11,927 11,914 11,902 11,890 11,879 11,869 11,859 11,849 11,841 11,832 11,824 11,817 11,809 11,803 11,796 11,790 11,784 11,778 11,773 11,768 11,763 11,759 11,754 11,750 11,746 11,743 11,739 11,736 11,732 11,729 11,726 11,724 11,721 11,718 11,716 11,714 11,711 11,709 11,707 11,705 11,703 11,702 11,700 11,698 11,697 11,695 11,694 11,692 11,691 11,689 11,688 11,687 11,686 11,685 11,684 11,683
98% 98% 98% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 25-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #3 Colon Mine Phase 1 Hydrograph 25-Yr Storm
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I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #4
Sheet: 1
Of: 4
Objective
Design the temporary sediment basin to contain the 25-year storm.
References 1. NC Erosion and Sediment Control Planning and Design Manual. 2. "Elements of Urban Stormwater Design" by H. Rooney Malcom, P.E. 3. NOAA Atlas 14, Volume 2, Version 3 4. VA Erosion and Sediment Control Handbook Given Phase Storm Event (yrs) = Total Drainage Area A (ac) = Disturbed Area (ac) = Curve Number CN = Rainfall Depth P (in) = Peak Flow Qp (cfs) =
1 10 12.7 12.7 89 5.28 77.74
1 25 12.7 12.7 89 6.28 95.13
Hydrographs (24-hr rainfall) Hydrographs
Ref 3
Design Criteria Required sediment storage Required sediment storage
1,800 22,860
cf / acre of drainage cf
Required Surface Area Required Surface Area (SF)
435 41,382
sf/cfs of the 10-yr storm peak flow (based on the largest Phase in cfs) of the 10-yr storm peak flow (based on the largest Phase)
Determine Shape of Basin: Measure the area of the Basin using AutoCADD. Calculate Volume of the Basin using Truncated Pyramid Method. Shape factor used in hydrographs basin depth may be gretaer than indicated below
Elevation (ft) 261 262 263 264 265 266 267
Depth (ft) 0 1 2 3 4 5 6
Area (sf) 26,486 29,254 32,108 35,046 38,057 41,127 44,258
Volume (cf) 0 27,859 30,670 33,566 36,541 39,582 42,683
Design Sediment Depth (ft) = 3 Sediment Storage (cf) = 92,095 Design Surface Area Depth (ft) = 3 Surface Area (sf) = 35,046
Cumulative Vol (cf) 0 27,859 58,528 92,095 128,636 168,218 210,901
Cumulative Vol (cy) 0 1,032 2,168 3,411 4,764 6,230 7,811
Required Sediment Storage Achieved
Increase Surface Area
SB Dims SB 04
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #4
Sheet: 2
Of: 4
Select Skimmer A. R. Jarrett Method D = [Q / (2,310 * (H 0.5)]0.5 D =Diameter of Orifice (inches) Q = Dewater Rate (cf/day) H = Head on orifice, varies based on skimmer size (ft) Skimmer Sizes (Inches) 1.5 2 2.5 3 4 5 6 8
Head (ft) 0.125 0.167 0.167 0.250 0.333 0.333 0.417 0.500
Volume to Dewater (cf) = Number of Skimmers Days to Drain = Q each (cf/day) =
92,095 1 5 18,419
Selected Skimmer Size (inches) = Head on Skimmer (feet) = Diameter of Orifice (inches) =
4 0.333 3.7
assumed 0.21 cfs
Route the flow through the Basin Riser is not perforated, but skimmer is attached. S = (1000/CN) - 10 2 Runoff Depth Q* (inches) = (P-0.2S) /(P+0.8S) TP (min) = 60.5(Q*)A/QP/1.39
Phase Storm Event (yrs) = S= Runoff Depth Q* (inches) = Time to Peak T p (min) =
1 10 1.24 4.04 28.73
Ref 2, III-4
1 25 1.24 5.01 29.09
SB Dims SB 04
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #4
Sheet: 3
Of: 4
Determine Pond Storage Elevation (Z Water): Pick one point near max expected water surface and the other at the mid depth. Z1 (ft) = 3 S1 (cf)= 92,095 Z2 (ft) = 5 S2 (cf) = 168,218 b = ln(S2/S1)/ln(Z2/Z1) = 1.2 b
KS = S2/Z2 =
Ref 2, III-8
25,208
Determine Settling Velocity Conversion Factor =
3.281 ft/sec per m/sec
2
Gravitational Acceleration, g (m/s ) = Specific Gravity of soil (ss)=
9.81 2.6 2 o 1.14E-06m / sec @ 20 C 40.00E-06 m
Kinematic Viscosity of water (v) = Diameter of the Design Particle d 15 = Design Particle Settling Velocity
=
( g / 18 ) * [ ( s s
Route the Storm through the Basin using the Hydrograph Model Set Height of Emergency Spillway at (ft) = 6.00 Set Top of Dam at (ft) = 6.60
Ref 2, IV-11
- 1 ) / v ] d2 =
4.02E-03
ft/sec
See Hydrograph
Anti-Seep Collar: Anti-Seep Collar Size = 2 * Barrel Dia Anti-Seep Collar Size (ft) = 2 Use Anti-Seep Collar Size (ft) = 2 Minimum Concrete Base for Riser: Diameter of Riser (in) = 24 Avg Density of Concrete (lbs/cf) = Density of Water (lbs/cf) = Riser Displacement (cf) = 16.65 Convert cf to cy = Min Concrete Needed (cy) = Width & Length (ft) = Thickness (ft) =
x2
From Hydrograph 87.6 62.4 Pi * (DR/24)2 * Total Ht of Riser
27-1 0.44 3 1.3
SB Dims SB 04
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #4
Sheet: 4
Of: 4
Anti-Vortex Device: Diameter of Riser (in) = Cylinder Diameter (in) = Cylinder Thickness (gage) = Cylinder Height (in) =
24 36 16 13
From Hydrograph Ref 4, III-104, Table 3.14-D
Determine Tailwater conditions to size outlet apron Use Normal Depth Procedure (Manning's Eqn.) A*R2/3 = Q*n/1.49 s0.5
Area (A)= bd+z(d^2)
Z req = Q*n/1.49s0.5
R=Area/(b+2d((z^2)+1)^.5)
n= Vp (ft/sec) = Side Slope (z) = s (ft/ft) = Bottom Width (ft) = QB (cfs) =
Q (cfs) 0.7
Zreq 0.24
0.069 9 5 0.02 3 0.7 Flow Depth d (ft) 0.20
Ref 2, II-7
Zav = A*R2/3
6-inch diameter Rip Rap, Lined Channel Permissible Velocity for lining enter X for X:1 Outlet Slope (estimated) 3 * Barrel Diameter Peak Flow out of the barrel 10-yr Hydrograph
A (sf) 0.8
R (ft) 0.16
Zav 0.24
Flow Depth = Tailwater, d (ft) = 0.20 0.5* Barrel Diameter (ft) = 0.50 Minimum Tailwater Conditions: d0.5*Diameter of Outlet Pipe Since the Tailwater is less than half of the diameter of the outlet, use Minimum Tailwater conditions. Barrel Diameter (ft) 1
Entrance (ft) 3
Length (ft) 8
Outlet Width (ft) 9
Median Rip Rap Size d50 0.4
V (ft/sec) 0.9 Ref 1, 8.06.3
Selected Rip Rap Size (in) Class A
Conclusion The temporary basin can contain the 25-yr storm.
SB Dims SB 04
I Job No. 0453925-237673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow
Diameter of Riser (in) = Circumference of Riser (in) = Height of Riser from bottom of barrel (in) = Vertical spacing between holes (in) = Water Stage increment (ft)
24 75.4 64 0 0.05
l
Computed: PAW Date: 3/4/15 Checked: MDP Date: 3/6/15 Sheet: 1 Of: 2
From Hydrograph center to center
Orifice Equation Q = Cd * A * (2 * g * h)0.5 Q = cfs, discharge Cd = 0.6 coefficient of discharge A = sf, cross sectional area
Ref 1, p III-11
ft/sec2, gravity g = 32.2 h = ft, driving head measured from the center of the pipe
Row Holes per row Hole Diameter (in) Spacing edge to edge (in) Inlet Area (sf) Hole Stage (in) Hole Stage (ft)
1 0 0.75
2 0 0.75
Perforations 3 0 0.75
4 0 0.75
5 0 0.75
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
Skimmer 1
# of skimmers
Water Stage (ft) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Total Flow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.00 0.00 0.29 0.00 0.00 0.00 0.00 0.00 0.34 0.00 0.00 0.00 0.21 0.21 0.39 0.00 0.00 0.00 0.21 0.21 0.44 0.00 0.00 0.00 0.21 0.21 0.49 0.00 0.00 0.00 0.21 0.21 0.54 0.00 0.00 0.00 0.21 0.21 0.59 0.00 0.00 0.00 0.21 0.21 0.64 0.00 0.00 0.00 0.21 0.21 0.69 0.00 0.00 0.00 0.21 0.21 0.74 0.00 0.00 0.00 0.21 0.21 0.79 0.00 0.00 0.00 0.21 0.21 0.84 0.00 0.00 0.00 0.21 0.21 0.89 0.00 0.00 0.00 0.21 0.21 0.94 0.00 0.00 0.00 0.21 0.21 0.99 0.00 0.00 0.00 0.21 0.21 1.04 0.00 0.00 0.00 0.21 0.21 1.09 0.00 0.00 0.00 0.21 0.21 1.14 0.00 0.00 0.00 0.21 0.21 1.19 0.00 0.00 0.00 0.21 0.21 1.24 0.00 0.00 0.00 0.21 0.21 1.29 0.00 0.00 0.00 0.21 0.21 1.34 0.00 0.00 0.00 0.21 0.21 1.39 0.00 0.00 0.00 0.21 0.21 1.44 0.00 0.00 0.00 0.21 0.21 1.49 0.00 0.00 0.00 0.21 0.21 1.54 0.00 0.00 0.00 0.21 0.21 1.59 0.00 0.00 0.00 0.21 0.21 SB 04
Pipe Perf-Skimmer
I Job No. 0453925-237673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow 1.64 1.69 1.74 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.59 2.64 2.69 2.74 2.79 2.84 2.89 2.94 2.99 3.04 3.09 3.14 3.19 3.24 3.29 3.34 3.39 3.44 3.49 3.54 3.59 3.64 3.69 3.74 3.79 3.84 3.89 3.94 3.99
SB 04
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
l
Computed: PAW Date: 3/4/15 Checked: MDP Date: 3/6/15 Sheet: 2 Of: 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21
0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21
Pipe Perf-Skimmer
Computed By: PAW Date: 3/05/15 Checked By: MDP Date: 3/0615 Sheet: __1_of __2_
Sediment Basin #
Qp =
77.74
cfs
Tp =
28.73
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
SB 04
Colon
1 12 4.3 5.3 6.0 6.6 20 24 0
10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
266.30 267.00 267.60
261.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
4
Phase 1
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 0.9 0 0.0 0.00 0.00 3.7 111 0.0 0.00 0.00 8.1 550 0.0 0.00 0.00 13.9 1,519 0.1 0.00 0.00 21.0 3,192 0.2 0.00 0.00 28.9 5,714 0.3 0.00 0.00 37.3 9,185 0.4 0.21 0.21 45.8 13,638 0.6 0.21 0.21 53.9 19,106 0.8 0.21 0.21 61.3 25,551 1.0 0.21 0.21 67.7 32,885 1.3 0.21 0.21 72.7 40,981 1.5 0.21 0.21 76.0 49,674 1.8 0.21 0.21 77.6 58,771 2.0 0.21 0.21 77.4 68,060 2.3 0.21 0.21 75.3 77,318 2.6 0.21 0.21 71.5 86,326 2.8 0.21 0.21 66.2 94,876 3.1 0.21 0.21 60.4 102,791 3.3 0.21 0.21 55.2 110,020 3.5 0.21 0.21 50.4 116,620 3.7 0.21 0.21 46.1 122,648 3.8 0.21 0.21 42.1 128,151 4.0 0.21 0.21 38.4 133,177 4.1 0.21 0.21 35.1 137,765 4.2 0.21 0.21 32.1 141,954 4.3 0.21 0.21 29.3 145,778 4.4 0.21 0.21 26.8 149,269 4.5 0.21 0.21 24.5 152,456 4.6 0.21 0.21 22.3 155,365 4.7 0.21 0.21 20.4 158,020 4.7 0.21 0.21 18.6 160,444 4.8 0.21 0.21 17.0 162,655 4.9 0.21 0.21 15.6 164,673 4.9 0.21 0.21 14.2 166,514 5.0 0.21 0.21 13.0 168,193 5.0 0.21 0.21 11.9 169,725 5.0 0.21 0.21 10.8 171,122 5.1 0.21 0.21 9.9 172,396 5.1 0.21 0.21 9.0 173,558 5.1 0.21 0.21 8.3 174,617 5.2 0.21 0.21
4.0E-03 2 100% 5.4 0.7 0.7 0.0
1.2 25,208
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 266.39 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21
Bound Discharge [cfs] 0.00 0.00 28.66 36.56 42.66 47.77 52.19 56.10 59.57 62.71 65.54 68.10 70.42 72.51 74.39 76.07 77.56 78.87 80.01 80.99 81.83 82.56 83.20 83.75 84.24 84.68 85.07 85.41 85.72 85.99 86.24 86.46 86.66 86.85 87.01 87.16 87.29 87.41 87.52 87.62 87.71 87.79
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 13,029 N/A 16,618 N/A 19,393 N/A 21,712 N/A 23,722 N/A 25,498 100% 27,078 100% 28,502 100% 29,790 100% 30,956 100% 32,010 100% 32,960 100% 33,814 100% 34,577 100% 35,254 100% 35,850 100% 36,368 100% 36,814 100% 37,197 100% 37,528 100% 37,816 100% 38,070 100% 38,293 100% 38,491 100% 38,666 100% 38,823 100% 38,963 100% 39,088 100% 39,201 100% 39,302 100% 39,393 100% 39,475 100% 39,549 100% 39,616 100% 39,677 100% 39,731 100% 39,781 100% 39,826 100% 39,867 100% 39,904 100% SB 10-yr (P1) HG
Computed By: PAW Date: 3/05/15 Checked By: MDP Date: 3/0615 Sheet: __2_of __2_
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 04
7.5 6.9 6.3 5.7 5.3 4.8 4.4 4.0 3.7 3.3 3.1 2.8 2.5 2.3 2.1 1.9 1.8 1.6 1.5 1.4 1.2 1.1 1.0 0.9 0.9 0.8 0.7 0.7 0.6 0.5 0.5 0.5 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0
175,582 176,461 177,262 177,992 178,656 179,260 179,810 180,311 180,765 181,174 181,539 181,864 182,152 182,405 182,626 182,818 182,983 183,125 183,244 183,343 183,425 183,491 183,541 183,579 183,605 183,621 183,627 183,625 183,616 183,600 183,578 183,552 183,520 183,485 183,447 183,405 183,361 183,315 183,267 183,217 183,167 183,115 183,062 183,009 182,956 182,902 182,848 182,794 182,740 182,686 182,633 182,579 182,526 182,474 182,422 182,370 182,319 182,269 182,219 182,170 182,121 182,073
5.2 5.2 5.2 5.2 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.3 5.3 5.3
0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21
0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.22 0.25 0.29 0.34 0.39 0.44 0.48 0.52 0.56 0.59 0.62 0.65 0.67 0.69 0.70 0.71 0.72 0.73 0.73 0.73 0.73 0.73 0.73 0.72 0.72 0.71 0.70 0.69 0.68 0.67 0.66 0.65 0.64 0.63 0.62 0.61 0.60 0.59 0.58 0.57 0.56 0.55 0.54 0.53 0.52 0.51 0.50 0.49 0.48 0.47 0.46 0.45 0.44 0.43 0.42
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.21 0.21 0.21 0.21 0.21 0.21 0.21 8.27 8.28 8.29 8.30 8.31 8.31 8.32 8.32 8.33 8.33 8.33 8.34 8.34 8.34 8.34 8.34 8.34 8.35 8.35 8.35 8.35 8.35 8.35 8.34 8.34 8.34 8.34 8.34 8.34 8.34 8.34 8.34 8.34 8.34 8.33 8.33 8.33 8.33 8.33 8.33 8.33 8.33 8.33 8.32 8.32 8.32 8.32 8.32 8.32 8.32 8.32 8.32 8.31 8.31 8.31
0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.22 0.25 0.29 0.34 0.39 0.44 0.48 0.52 0.56 0.59 0.62 0.65 0.67 0.69 0.70 0.71 0.72 0.73 0.73 0.73 0.73 0.73 0.73 0.72 0.72 0.71 0.70 0.69 0.68 0.67 0.66 0.65 0.64 0.63 0.62 0.61 0.60 0.59 0.58 0.57 0.56 0.55 0.54 0.53 0.52 0.51 0.50 0.49 0.48 0.47 0.46 0.45 0.44 0.43 0.42
87.86 87.93 87.99 88.04 88.09 88.14 88.18 88.22 88.25 88.28 88.31 88.33 88.35 88.37 88.39 88.40 88.41 88.43 88.43 88.44 88.45 88.45 88.46 88.46 88.46 88.46 88.46 88.46 88.46 88.46 88.46 88.46 88.45 88.45 88.45 88.45 88.44 88.44 88.44 88.43 88.43 88.42 88.42 88.42 88.41 88.41 88.40 88.40 88.40 88.39 88.39 88.39 88.38 88.38 88.37 88.37 88.37 88.36 88.36 88.35 88.35 88.35
39,937 39,967 39,995 40,020 40,043 40,063 40,082 40,099 40,114 40,128 40,140 40,151 40,161 40,169 40,177 40,183 40,189 40,193 40,197 40,201 40,203 40,205 40,207 40,208 40,209 40,210 40,210 40,210 40,210 40,209 40,208 40,207 40,206 40,205 40,204 40,203 40,201 40,200 40,198 40,196 40,195 40,193 40,191 40,189 40,188 40,186 40,184 40,182 40,180 40,179 40,177 40,175 40,173 40,172 40,170 40,168 40,166 40,165 40,163 40,161 40,160 40,158
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #4 Colon Mine Phase 1 Hydrograph 10-Yr Storm
This page intentionally left blank.
Computed By: PAW Date: 3/05/15 Checked By: MDP Date: 3/0615 Sheet: __1_of __2_
Sediment Basin #
Qp =
95.13
cfs
Tp =
29.09
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
SB 04
Colon
1 12 4.3 5.3 6 6.6 20 24 0
25 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
266.30 267.00 267.60
261.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
4
Phase 1
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.1 0 0.0 0.00 0.00 4.4 133 0.0 0.00 0.00 9.6 657 0.0 0.00 0.00 16.7 1,813 0.1 0.00 0.00 25.1 3,814 0.2 0.00 0.00 34.6 6,830 0.3 0.00 0.00 44.8 10,988 0.5 0.21 0.21 55.0 16,333 0.7 0.21 0.21 64.9 22,907 0.9 0.21 0.21 74.0 30,669 1.2 0.21 0.21 81.8 39,521 1.5 0.21 0.21 88.1 49,317 1.8 0.21 0.21 92.5 59,865 2.1 0.21 0.21 94.8 70,939 2.4 0.21 0.21 94.9 82,289 2.7 0.21 0.21 92.8 93,652 3.0 0.21 0.21 88.6 104,763 3.3 0.21 0.21 82.5 115,371 3.6 0.21 0.21 75.6 125,246 3.9 0.21 0.21 69.1 134,290 4.1 0.21 0.21 63.2 142,559 4.3 0.21 0.21 57.8 150,118 4.5 0.21 0.21 52.9 157,029 4.7 0.21 0.21 48.3 163,348 4.9 0.21 0.21 44.2 169,123 5.0 0.21 0.21 40.4 174,403 5.2 0.21 0.21 37.0 179,229 5.3 0.21 0.21 33.8 183,641 5.4 0.21 0.74 30.9 187,610 5.5 0.21 1.86 28.3 191,098 5.6 0.21 3.14 25.9 194,115 5.6 0.21 4.42 23.7 196,688 5.7 0.21 5.63 21.6 198,850 5.8 0.21 6.72 19.8 200,639 5.8 0.21 7.67 18.1 202,091 5.8 0.21 8.48 16.5 203,245 5.9 0.21 9.13 15.1 204,180 5.9 0.21 9.67 13.8 204,944 5.9 0.21 10.13 12.7 205,550 5.9 0.21 10.49 11.6 206,013 5.9 0.21 10.77 10.6 206,345 5.9 0.21 10.97
4.0E-03 2 99% 6.0 8.8 8.8 0.0
1.2 25,208
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 266.95 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 8.35 0.74 0.00 8.43 1.86 0.00 8.50 3.14 0.00 8.56 4.42 0.00 8.62 5.63 0.00 8.66 6.72 0.00 8.70 7.67 0.00 8.73 8.48 0.00 8.75 8.75 0.00 8.77 8.77 0.00 8.78 8.78 0.00 8.80 8.80 0.00 8.80 8.80 0.00 8.81 8.81
Bound Discharge [cfs] 0.00 0.00 29.45 37.56 43.83 49.08 53.62 57.65 61.23 64.46 67.38 70.03 72.43 74.60 76.55 78.30 79.85 81.23 82.43 83.46 84.35 85.12 85.79 86.38 86.90 87.36 87.77 88.14 88.46 88.75 89.00 89.21 89.39 89.54 89.66 89.76 89.84 89.90 89.95 89.99 90.02 90.05
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 13,384 N/A 17,072 N/A 19,923 N/A 22,308 N/A 24,375 N/A 26,203 100% 27,831 100% 29,300 100% 30,629 100% 31,833 100% 32,924 100% 33,909 100% 34,795 100% 35,589 100% 36,296 100% 36,921 100% 37,466 100% 37,937 100% 38,341 100% 38,691 100% 38,997 100% 39,264 100% 39,501 100% 39,710 100% 39,896 100% 40,062 100% 40,210 100% 40,341 100% 40,455 100% 40,551 100% 40,632 100% 40,700 99% 40,755 99% 40,800 99% 40,836 99% 40,864 99% 40,887 99% 40,906 99% 40,920 99% 40,930 99% SB 25-yr (P1) HG
Computed By: PAW Date: 3/05/15 Checked By: MDP Date: 3/0615 Sheet: __2_of __2_
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 04
9.7 8.9 8.1 7.4 6.8 6.2 5.7 5.2 4.7 4.3 4.0 3.6 3.3 3.0 2.8 2.5 2.3 2.1 1.9 1.8 1.6 1.5 1.4 1.2 1.1 1.0 0.9 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0
206,557 206,661 206,665 206,578 206,408 206,163 205,849 205,472 205,038 204,552 204,019 203,442 202,826 202,175 201,515 200,869 200,237 199,620 199,019 198,434 197,865 197,313 196,778 196,259 195,757 195,271 194,800 194,346 193,906 193,482 193,072 192,676 192,294 191,925 191,569 191,225 190,893 190,573 190,264 189,966 189,678 189,400 189,131 188,872 188,622 188,380 188,146 187,921 187,703 187,492 187,288 187,091 186,901 186,716 186,538 186,365 186,198 186,037 185,880 185,728 185,581 185,438
6.0 6.0 6.0 6.0 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.8 5.8 5.8 5.8 5.8 5.8 5.8 5.7 5.7 5.7 5.7 5.7 5.7 5.7 5.7 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.4 5.4 5.4 5.4 5.4 5.4
0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21
11.10 11.16 11.17 11.11 11.01 10.86 10.67 10.44 10.18 9.89 9.58 9.25 8.89 8.52 8.16 7.80 7.46 7.13 6.81 6.51 6.22 5.94 5.68 5.43 5.18 4.95 4.74 4.53 4.33 4.14 3.96 3.79 3.63 3.47 3.33 3.19 3.06 2.93 2.81 2.70 2.59 2.48 2.39 2.29 2.20 2.12 2.04 1.96 1.89 1.82 1.75 1.69 1.63 1.57 1.52 1.46 1.41 1.37 1.32 1.28 1.23 1.19
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
8.82 8.82 8.82 8.82 8.81 8.81 8.80 8.79 8.79 8.78 8.76 8.75 8.74 8.73 8.71 8.70 8.69 8.68 8.66 8.65 8.64 8.63 8.62 8.61 8.60 8.59 8.58 8.57 8.56 8.55 8.54 8.54 8.53 8.52 8.51 8.51 8.50 8.49 8.49 8.48 8.47 8.47 8.46 8.46 8.45 8.45 8.44 8.44 8.43 8.43 8.42 8.42 8.41 8.41 8.41 8.40 8.40 8.40 8.39 8.39 8.39 8.38
8.82 8.82 8.82 8.82 8.81 8.81 8.80 8.79 8.79 8.78 8.76 8.75 8.74 8.52 8.16 7.80 7.46 7.13 6.81 6.51 6.22 5.94 5.68 5.43 5.18 4.95 4.74 4.53 4.33 4.14 3.96 3.79 3.63 3.47 3.33 3.19 3.06 2.93 2.81 2.70 2.59 2.48 2.39 2.29 2.20 2.12 2.04 1.96 1.89 1.82 1.75 1.69 1.63 1.57 1.52 1.46 1.41 1.37 1.32 1.28 1.23 1.19
90.06 90.07 90.07 90.06 90.05 90.03 90.01 89.99 89.96 89.93 89.89 89.85 89.81 89.77 89.72 89.68 89.63 89.59 89.55 89.51 89.47 89.43 89.40 89.36 89.33 89.29 89.26 89.23 89.20 89.17 89.14 89.11 89.08 89.06 89.03 89.01 88.99 88.96 88.94 88.92 88.90 88.88 88.86 88.84 88.82 88.81 88.79 88.77 88.76 88.74 88.73 88.71 88.70 88.69 88.67 88.66 88.65 88.64 88.63 88.62 88.60 88.59
40,936 40,939 40,939 40,937 40,932 40,924 40,915 40,903 40,890 40,875 40,859 40,842 40,823 40,803 40,782 40,763 40,743 40,724 40,705 40,687 40,669 40,652 40,635 40,619 40,603 40,588 40,573 40,558 40,544 40,531 40,518 40,505 40,493 40,481 40,470 40,459 40,448 40,438 40,428 40,418 40,409 40,400 40,391 40,383 40,374 40,367 40,359 40,352 40,344 40,338 40,331 40,324 40,318 40,312 40,306 40,301 40,295 40,290 40,285 40,280 40,275 40,270
99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 25-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #4 Colon Mine Phase 1 Hydrograph 25-Yr Storm
This page intentionally left blank.
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #5
Sheet: 1
Of:
Objective
Design the sediment basin to contain the 10-year storm and pass the 100-year storm without over topping the berm.
4
References 1. NC Erosion and Sediment Control Planning and Design Manual. 2. "Elements of Urban Stormwater Design" by H. Rooney Malcom, P.E. 3. VA Erosion and Sediment Control Handbook 3. NOAA Atlas 14, Volume 2, Version 3 Given Phase Storm Event (yrs) = Total Drainage Area A (ac) = Disturbed Area (ac) = Curve Number CN = Rainfall Depth P (in) = Peak Flow Qp (cfs) =
1 10 49.3 49.3 89 5.28 301.78
2 10 42.1 42.1 88 5.28 252.52
2 25 42.1 42.1 88 6.28 310.28
2 100 42.1 42.1 88 7.88 402.08
Hydrographs (24-hr rainfall) Hydrographs
Ref 3
Design Criteria Required sediment storage Required sediment storage
1,800 88,740
cf / acre of drainage cf (based on largest Phase)
Required Surface Area Required Surface Area (SF)
435 131,274
sf/cfs of the 10-yr storm peak flow (based on the largest Phase in cfs) of the 10-yr storm peak flow (based on the largest Phase)
Determine Shape of Basin: Measure the area of the Basin using AutoCADD. Calculate Volume of the Basin using Truncated Pyramid Method. Shape factor used in hydrographs basin depth may be gretaer than indicated below
Elevation (ft) 255 256 257 258 259 260 261
Depth (ft) 0 1 2 3 4 5 6
Area (sf) 118,763 124,341 129,979 135,678 141,437 147,256 153,136
Volume (cf) 0 121,541 127,150 132,818 138,548 144,337 150,186
Design Sediment Depth (ft) = 3 Sediment Storage (cf) = 381,509 Design Surface Area Depth (ft) = 3 Surface Area (sf) = 135,678
Cumulative Vol (cf) 0 121,541 248,691 381,509 520,057 664,393 814,580
Cumulative Vol (cy) 0 4,502 9,211 14,130 19,261 24,607 30,170
Required Sediment Storage Achieved
Required Surface Area Achieved
SB Dims SB 05.xlsx
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #5
Sheet: 2
Of:
4
Select Skimmer A. R. Jarrett Method D = [Q / (2,310 * (H 0.5)]0.5 D =Diameter of Orifice (inches) Q = Dewater Rate (cf/day) H = Head on orifice, varies based on skimmer size (ft) Skimmer Sizes (Inches) 1.5 2 2.5 3 4 5 6 8 Volume to Dewater (cf) = Number of Skimmers Days to Drain = Q each (cf/day) = Selected Skimmer Size (inches) = Head on Skimmer (feet) = Diameter of Orifice (inches) =
Head (ft) 0.125 0.167 0.167 0.250 0.333 0.333 0.417 0.500 381,509 2 5 38,151
assumed 0.44 cfs
6 0.417 5.1
Route the flow through the Basin Riser is not perforated, but skimmer is attached. S = (1000/CN) - 10 2 Runoff Depth Q* (inches) = (P-0.2S) /(P+0.8S) TP (min) = 60.5(Q*)A/QP/1.39
Phase Storm Event (yrs) = S= Runoff Depth Q* (inches) = Time to Peak T p (min) =
1 10 1.24 4.04 28.73
2 10 1.36 3.94 28.56
Ref 2, III-4
2 25 1.36 4.90 28.91
Determine Pond Storage Elevation (ZWater): Pick one point near max expected water surface and the other at the mid depth. Z1 (ft) = 3 S1 (cf)= 381,509 Z2 (ft) = 6 S2 (cf) = 814,580 1.1 b = ln(S2/S1)/ln(Z2/Z1) = b
KS = S2/Z2 =
2 100 1.36 6.45 29.40
Ref 2, III-8
114,650
SB Dims SB 05.xlsx
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #5
Sheet: 3
Of:
Determine Settling Velocity Conversion Factor =
3.281 ft/sec per m/sec
2
Gravitational Acceleration, g (m/s ) = Specific Gravity of soil (ss)= Kinematic Viscosity of water (v) = Diameter of the Design Particle d15 = Design Particle Settling Velocity
4
9.81 2.6 2 o 1.14E-06m / sec @ 20 C 40.00E-06 m
=
( g / 18 ) * [ ( ss
Route the Storm through the Basin using the Hydrograph Model Set Height of Emergency Spillway at (ft) = 6.00 Set Top of Dam at (ft) = 7.00 Emergency Spillway QE (cfs) = 100-Yr Storm QE (cfs) = 2.9 Cross Section = Trapezoid Channel Side Slope (z) = 5 n= 0.03 Vp (ft/sec) = 5.0 Allowable Shear Stress (psf) = 2.0 Bottom Width, b (ft) = 20
Ref 2, IV-11
- 1 ) / v ] d2 =
4.02E-03
ft/sec
See Hydrograph
(enter X for X:1) Grass Lined Permissible Velocity for lining Allowable Shear Stress for lining
Ref 2, II-7
Calculate Required Depth of Spillway: Normal-Depth Procedure AR2/3=Qn/1.49s0.5
Q=VA
Zreq=Qn/1.49s0.5
Area (A)= bd+z(d^2)
2/3
Zav=AR
Channel Slope ft/ft 0.01 0.02
Depth, d (ft) 0.18 0.15
A (sf) 3.77 3.03
Construct the channel to be :
R=Area/(b+2d((z^2)+1)^.5) Avg Shear Stress(T) = Kb*d*s*unit weight of water
Zreq 0.58 0.41 20 1.0 1%
R 0.17 0.14
Z avail 1.17 0.82
V (ft/sec) 1.5 1.9
T (psf) 0.1 0.2
ft, Bottom Width (measured at top of lining) ft, depth (measured at top of lining) slope
Anti-Seep Collar: Anti-Seep Collar Size = 2 * Barrel Dia Anti-Seep Collar Size (ft) = 4 Use Anti-Seep Collar Size (ft) = 4
x4
SB Dims SB 05.xlsx
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #5
Sheet: 4
Of:
Minimum Concrete Base for Riser: Diameter of Riser (in) = 48 Avg Density of Concrete (lbs/cf) = Density of Water (lbs/cf) =
From Hydrograph 87.6 62.4
Riser Displacement (cf) = 66.60 Convert cf to cy = Min Concrete Needed (cy) = Width & Length (ft) = Thickness (ft) = Anti-Vortex Device: Diameter of Riser (in) = Cylinder Diameter (in) = Cylinder Thickness (gage) = Cylinder Height (in) =
4
Pi * (DR/24)2 * Total Ht of Riser
27-1 1.76 5 1.9
48 78 16 25
From Hydrograph Ref 3, III-104, Table 3.14-D
Determine Tailwater conditions to size outlet apron Use Normal Depth Procedure (Manning's Eqn.) A*R2/3 = Q*n/1.49 s0.5
Area (A)= bd+z(d^2)
Z req = Q*n/1.49s0.5
R=Area/(b+2d((z^2)+1)^.5)
n= Vp (ft/sec) = Side Slope (z) = s (ft/ft) = Bottom Width (ft) = QB (cfs) =
Q (cfs) 5.1
Zreq 1.66
0.069 9 5 0.02 12 5.1 Flow Depth d (ft) 0.51
Ref 2, II-7
Zav = A*R2/3
6-inch diameter Rip Rap, Lined Channel Permissible Velocity for lining enter X for X:1 Outlet Slope (estimated) 6 * Barrel Diameter Peak Flow out of the barrel 25-yr Hydrograph
A (sf) 7.4
R (ft) 0.43
Zav 4.22
V (ft/sec) 0.7
Flow Depth = Tailwater, d (ft) = 0.51 0.5* Barrel Diameter (ft) = 1.00 Minimum Tailwater Conditions: d0.5*Diameter of Outlet Pipe Since the Tailwater is less than half of the diameter of the outlet, use Minimum Tailwater conditions. Barrel Diameter (ft) 2
Entrance (ft) 6
Length (ft) 10
Outlet Width (ft) 12
Median Rip Rap Size d50 0.3
Ref 1, 8.06.3
Selected Rip Rap Size (in) Class A
Conclusion The basin can contain the 10-yr storm and pass the 100-yr storm without overtopping the berm.
SB Dims SB 05.xlsx
I Job No. 06985-10570-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow
Diameter of Riser (in) = Circumference of Riser (in) = Height of Riser from bottom of barrel (in) = Vertical spacing between holes (in) = Water Stage increment (ft)
48 150.8 64 0 0.05
l
Computed: PAW Date: 12/31/14 Checked: EAW Date: 1/2/15 Sheet 1 Of 2
From Hydrograph center to center
Orifice Equation Q = Cd * A * (2 * g * h)0.5 Q = cfs, discharge Cd = 0.6 coefficient of discharge A = sf, cross sectional area
Ref 1, p III-11
ft/sec2, gravity g = 32.2 h = ft, driving head measured from the center of the pipe
Row Holes per row Hole Diameter (in) Spacing edge to edge (in) Inlet Area (sf) Hole Stage (in) Hole Stage (ft)
1 0 0.75
2 0 0.75
Perforations 3 0 0.75
4 0 0.75
5 0 0.75
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
Skimmer 2
# of skimmers
Water Stage (ft) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Total Flow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.00 0.00 0.29 0.00 0.00 0.00 0.00 0.00 0.34 0.00 0.00 0.00 0.00 0.00 0.39 0.00 0.00 0.00 0.00 0.00 0.44 0.00 0.00 0.00 0.88 0.88 0.49 0.00 0.00 0.00 0.88 0.88 0.54 0.00 0.00 0.00 0.88 0.88 0.59 0.00 0.00 0.00 0.88 0.88 0.64 0.00 0.00 0.00 0.88 0.88 0.69 0.00 0.00 0.00 0.88 0.88 0.74 0.00 0.00 0.00 0.88 0.88 0.79 0.00 0.00 0.00 0.88 0.88 0.84 0.00 0.00 0.00 0.88 0.88 0.89 0.00 0.00 0.00 0.88 0.88 0.94 0.00 0.00 0.00 0.88 0.88 0.99 0.00 0.00 0.00 0.88 0.88 1.04 0.00 0.00 0.00 0.88 0.88 1.09 0.00 0.00 0.00 0.88 0.88 1.14 0.00 0.00 0.00 0.88 0.88 1.19 0.00 0.00 0.00 0.88 0.88 1.24 0.00 0.00 0.00 0.88 0.88 1.29 0.00 0.00 0.00 0.88 0.88 1.34 0.00 0.00 0.00 0.88 0.88 1.39 0.00 0.00 0.00 0.88 0.88 1.44 0.00 0.00 0.00 0.88 0.88 1.49 0.00 0.00 0.00 0.88 0.88 1.54 0.00 0.00 0.00 0.88 0.88 1.59 0.00 0.00 0.00 0.88 0.88 SB 05.xlsx
Pipe Perf-Skimmer
I Job No. 06985-10570-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow 1.64 1.69 1.74 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.59 2.64 2.69 2.74 2.79 2.84 2.89 2.94 2.99 3.04 3.09 3.14 3.19 3.24 3.29 3.34 3.39 3.44 3.49 3.54 3.59 3.64 3.69 3.74 3.79 3.84 3.89 3.94 3.99
SB 05.xlsx
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
l
Computed: PAW Date: 12/31/14 Checked: EAW Date: 1/2/15 Sheet 2 Of 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
Pipe Perf-Skimmer
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: __1__of _2_
Sediment Basin #
Qp =
301.78
cfs
Tp =
28.73
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 3.3 5.3 6.0 7.0 20 48 0
b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
260.30 261.00 262.00
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 3.6 0 0.0 0.00 0.00 14.2 431 0.0 0.00 0.00 31.3 2,136 0.0 0.00 0.00 54.1 5,895 0.1 0.00 0.00 81.6 12,393 0.1 0.00 0.00 112.3 22,181 0.2 0.00 0.00 144.9 35,658 0.3 0.00 0.00 177.7 53,042 0.5 0.88 0.88 209.3 74,157 0.7 0.88 0.88 238.1 99,061 0.9 0.88 0.88 262.7 127,420 1.1 0.88 0.88 282.0 158,736 1.3 0.88 0.88 295.1 192,369 1.6 0.88 0.88 301.3 227,570 1.9 0.88 0.88 300.3 263,514 2.1 0.88 0.88 292.2 299,341 2.4 0.88 0.88 277.4 334,197 2.7 0.88 0.88 256.9 367,275 2.9 0.88 0.88 234.7 397,889 3.1 0.88 0.88 214.4 425,835 3.3 0.88 0.88 195.8 451,346 3.5 0.88 0.88 178.9 474,630 3.7 0.88 0.88 163.4 495,882 3.8 0.88 0.88 149.3 515,277 3.9 0.88 0.88 136.3 532,975 4.1 0.88 0.88 124.5 549,123 4.2 0.88 0.88 113.8 563,856 4.3 0.88 0.88 103.9 577,296 4.4 0.88 0.88 94.9 589,555 4.5 0.88 0.88 86.7 600,734 4.5 0.88 0.88 79.2 610,928 4.6 0.88 0.88 72.4 620,222 4.7 0.88 0.88 66.1 628,693 4.7 0.88 0.88 60.4 636,413 4.8 0.88 0.88 55.2 643,447 4.8 0.88 0.88 50.4 649,854 4.9 0.88 0.88 46.0 655,688 4.9 0.88 0.88 42.0 660,998 5.0 0.88 0.88 38.4 665,832 5.0 0.88 0.88 35.1 670,228 5.0 0.88 0.88 32.0 674,226 5.0 0.88 0.88
SB 05.xlsx
Colon
10 - year Storm Event
255.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
5
Phase 1
4.0E-03 2 100% 5.3 1.8 1.8 0.0
1.1 114,650
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 260.29 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77
Bound Discharge [cfs] 0.00 0.00 170.58 195.81 213.72 227.85 239.58 249.59 258.28 265.85 272.57 278.55 283.88 288.62 292.83 296.55 299.83 302.69 305.16 307.28 309.08 310.64 311.99 313.17 314.20 315.12 315.93 316.65 317.30 317.87 318.39 318.85 319.26 319.64 319.97 320.28 320.55 320.80 321.02 321.22 321.41 321.57
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 77,537 N/A 89,003 N/A 97,144 N/A 103,570 N/A 108,900 N/A 113,449 N/A 117,400 100% 120,840 100% 123,895 100% 126,613 100% 129,034 100% 131,190 100% 133,104 100% 134,798 100% 136,287 100% 137,587 100% 138,711 100% 139,672 100% 140,492 100% 141,198 100% 141,812 100% 142,348 100% 142,820 100% 143,236 100% 143,605 100% 143,933 100% 144,226 100% 144,487 100% 144,722 100% 144,932 100% 145,120 100% 145,290 100% 145,443 100% 145,581 100% 145,705 100% 145,818 100% 145,919 100% 146,011 100% 146,094 100% 146,169 100% SB 10-yr (P1) HG
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: __2__of _2_
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 05.xlsx
29.3 26.7 24.4 22.3 20.4 18.6 17.0 15.5 14.2 13.0 11.8 10.8 9.9 9.0 8.2 7.5 6.9 6.3 5.7 5.2 4.8 4.4 4.0 3.7 3.3 3.0 2.8 2.5 2.3 2.1 1.9 1.8 1.6 1.5 1.3 1.2 1.1 1.0 0.9 0.9 0.8 0.7 0.7 0.6 0.5 0.5 0.5 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1
677,859 681,160 684,157 686,876 689,342 691,576 693,598 695,427 697,080 698,571 699,915 701,124 702,210 703,184 704,055 704,833 705,525 706,138 706,681 707,158 707,575 707,938 708,251 708,519 708,745 708,934 709,087 709,209 709,303 709,369 709,412 709,433 709,433 709,415 709,381 709,331 709,267 709,190 709,101 709,002 708,893 708,775 708,649 708,516 708,376 708,229 708,077 707,920 707,758 707,591 707,421 707,247 707,070 706,890 706,707 706,522 706,334 706,144 705,952 705,759 705,564 705,367
5.1 5.1 5.1 5.1 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77
321.72 321.85 321.98 322.09 322.19 322.28 322.36 322.43 322.50 322.56 322.61 322.66 322.70 322.74 322.77 322.80 322.83 322.86 322.88 322.90 322.91 322.93 322.94 322.95 322.96 322.97 322.97 322.98 322.98 322.98 322.98 322.99 322.99 322.98 322.98 322.98 322.98 322.98 322.97 322.97 322.96 322.96 322.95 322.95 322.94 322.94 322.93 322.93 322.92 322.91 322.91 322.90 322.89 322.89 322.88 322.87 322.86 322.86 322.85 322.84 322.83 322.83
146,236 146,298 146,353 146,403 146,448 146,489 146,526 146,559 146,589 146,616 146,641 146,662 146,682 146,699 146,715 146,729 146,741 146,752 146,762 146,771 146,778 146,785 146,790 146,795 146,799 146,802 146,805 146,807 146,809 146,810 146,811 146,811 146,811 146,811 146,810 146,810 146,808 146,807 146,805 146,804 146,802 146,800 146,797 146,795 146,793 146,790 146,787 146,784 146,781 146,778 146,775 146,772 146,769 146,766 146,763 146,759 146,756 146,753 146,749 146,746 146,742 146,739
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #5 Colon Mine Phase 1 Hydrograph 10-Yr Storm
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: __1_of __2_
Qp = Tp =
252.52 28.56 2 1.0%
dT = Max of
or
Sediment Basin # 5
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 3.3 5.3 6 7 20 48 0
Phase 2 10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
260.30 261.00 262.00
255.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 3.0 0 0.0 0.00 0.00 12.0 365 0.0 0.00 0.00 26.5 1,809 0.0 0.00 0.00 45.8 4,991 0.1 0.00 0.00 69.0 10,489 0.1 0.00 0.00 94.9 18,769 0.2 0.00 0.00 122.4 30,161 0.3 0.00 0.00 150.0 44,847 0.4 0.00 0.00 176.5 62,850 0.6 0.88 0.88 200.6 83,819 0.8 0.88 0.88 221.1 107,677 0.9 0.88 0.88 237.0 133,993 1.2 0.88 0.88 247.6 162,218 1.4 0.88 0.88 252.3 191,713 1.6 0.88 0.88 250.9 221,774 1.8 0.88 0.88 243.6 251,675 2.1 0.88 0.88 230.6 280,692 2.3 0.88 0.88 212.9 308,147 2.5 0.88 0.88 194.3 333,478 2.7 0.88 0.88 177.4 356,585 2.8 0.88 0.88 162.0 377,663 3.0 0.88 0.88 147.9 396,889 3.1 0.88 0.88 135.0 414,423 3.2 0.88 0.88 123.3 430,413 3.3 0.88 0.88 112.5 444,993 3.5 0.88 0.88 102.7 458,285 3.5 0.88 0.88 93.8 470,403 3.6 0.88 0.88 85.6 481,447 3.7 0.88 0.88 78.2 491,512 3.8 0.88 0.88 71.4 500,683 3.8 0.88 0.88 65.2 509,037 3.9 0.88 0.88 59.5 516,646 4.0 0.88 0.88 54.3 523,574 4.0 0.88 0.88 49.6 529,881 4.1 0.88 0.88 45.3 535,621 4.1 0.88 0.88 41.3 540,842 4.1 0.88 0.88 37.7 545,591 4.2 0.88 0.88 34.5 549,908 4.2 0.88 0.88 31.5 553,831 4.2 0.88 0.88 28.7 557,395 4.2 0.88 0.88 26.2 560,629 4.3 0.88 0.88 23.9 563,564 4.3 0.88 0.88
SB 05.xlsx
Colon
WEIR FLOW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4.0E-03 2 100% 4.5 1.8 1.8 0.0
1.1 114,650
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 259.46 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
BARREL TOTAL Bound Estimated CAPACIT OUTFLOW Discharge Surface Y [cfs] [cfs] [cfs] Area (sf) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 168.15 76,434 0.00 0.00 193.02 87,736 0.00 0.00 210.67 95,759 0.00 0.00 224.60 102,091 0.00 0.00 236.15 107,343 0.00 0.00 246.01 111,823 0.00 0.00 254.57 115,713 0.88 1.77 262.08 119,129 0.88 1.77 268.67 122,123 0.88 1.77 274.54 124,789 0.88 1.77 279.76 127,163 0.88 1.77 284.41 129,276 0.88 1.77 288.53 131,151 0.88 1.77 292.18 132,808 0.88 1.77 295.38 134,264 0.88 1.77 298.17 135,533 0.88 1.77 300.58 136,628 0.88 1.77 302.64 137,562 0.88 1.77 304.39 138,359 0.88 1.77 305.90 139,045 0.88 1.77 307.21 139,642 0.88 1.77 308.36 140,163 0.88 1.77 309.37 140,621 0.88 1.77 310.26 141,026 0.88 1.77 311.04 141,384 0.88 1.77 311.75 141,702 0.88 1.77 312.37 141,986 0.88 1.77 312.93 142,240 0.88 1.77 313.43 142,466 0.88 1.77 313.87 142,670 0.88 1.77 314.28 142,852 0.88 1.77 314.64 143,017 0.88 1.77 314.96 143,164 0.88 1.77 315.25 143,297 0.88 1.77 315.52 143,417 0.88 1.77 315.76 143,525 0.88 1.77 315.97 143,623 0.88 1.77 316.16 143,711 0.88 1.77 316.34 143,790 0.88 1.77 316.50 143,862 0.88 1.77 316.64 143,927
Settling Efficiency [%] N/A N/A N/A N/A N/A N/A N/A N/A N/A 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: __2_of __2_
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 05.xlsx
21.9 20.0 18.2 16.6 15.2 13.9 12.7 11.6 10.6 9.6 8.8 8.0 7.3 6.7 6.1 5.6 5.1 4.6 4.2 3.9 3.5 3.2 2.9 2.7 2.5 2.2 2.0 1.9 1.7 1.6 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.8 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1
566,225 568,636 570,818 572,793 574,577 576,187 577,639 578,946 580,121 581,175 582,119 582,962 583,714 584,381 584,972 585,494 585,951 586,350 586,696 586,994 587,247 587,460 587,635 587,777 587,888 587,971 588,029 588,063 588,075 588,068 588,044 588,002 587,946 587,877 587,795 587,702 587,598 587,485 587,363 587,234 587,097 586,954 586,805 586,650 586,491 586,326 586,158 585,986 585,810 585,632 585,450 585,266 585,079 584,890 584,699 584,506 584,312 584,116 583,919 583,720
4.3 4.3 4.3 4.3 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77
316.77 316.88 316.99 317.08 317.17 317.24 317.31 317.38 317.43 317.48 317.52 317.56 317.60 317.63 317.66 317.68 317.70 317.72 317.74 317.75 317.76 317.77 317.78 317.79 317.79 317.80 317.80 317.80 317.80 317.80 317.80 317.80 317.80 317.79 317.79 317.79 317.78 317.78 317.77 317.76 317.76 317.75 317.74 317.74 317.73 317.72 317.71 317.71 317.70 317.69 317.68 317.67 317.66 317.65 317.65 317.64 317.63 317.62 317.61 317.60
143,985 144,038 144,086 144,129 144,167 144,202 144,233 144,261 144,287 144,309 144,329 144,347 144,363 144,378 144,390 144,401 144,411 144,420 144,427 144,433 144,439 144,443 144,447 144,450 144,452 144,454 144,455 144,456 144,456 144,456 144,455 144,455 144,453 144,452 144,450 144,448 144,446 144,444 144,441 144,438 144,435 144,432 144,429 144,426 144,422 144,419 144,415 144,412 144,408 144,404 144,400 144,396 144,392 144,388 144,384 144,380 144,376 144,372 144,368 144,364
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0 TOTAL OUTFLOW [cfs] INFLOW [cfs]
150
3.0
STAGE [ft] 100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE (ft)
FLOW (cfs)
Sediment Basin #5 Colon Mine Phase 2 Hydrograph 10-Yr Storm
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: __1__of __2__
Qp = Tp =
310.28 28.91 dT = Max of 2 or 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 3.3 5.3 6.0 7.0 20 48 0
Sediment Basin # 5
Phase 2 25 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
260.30 261.00 262.00
255.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 05.xlsx
Colon
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 3.6 0 0.0 0.00 0.00 14.4 438 0.0 0.00 0.00 31.8 2,169 0.0 0.00 0.00 55.0 5,987 0.1 0.00 0.00 82.9 12,588 0.1 0.00 0.00 114.2 22,538 0.2 0.00 0.00 147.4 36,244 0.3 0.00 0.00 181.0 53,937 0.5 0.88 0.88 213.4 75,449 0.7 0.88 0.88 243.0 100,845 0.9 0.88 0.88 268.5 129,797 1.1 0.88 0.88 288.7 161,808 1.4 0.88 0.88 302.6 196,239 1.6 0.88 0.88 309.5 232,336 1.9 0.88 0.88 309.2 269,266 2.2 0.88 0.88 301.6 306,158 2.5 0.88 0.88 287.2 342,142 2.7 0.88 0.88 266.5 376,392 3.0 0.88 0.88 243.9 408,163 3.2 0.88 0.88 222.9 437,221 3.4 0.88 0.88 203.8 463,761 3.6 0.88 0.88 186.2 488,001 3.8 0.88 0.88 170.2 510,138 3.9 0.88 0.88 155.6 530,353 4.1 0.88 0.88 142.2 548,811 4.2 0.88 0.88 130.0 565,664 4.3 0.88 0.88 118.8 581,049 4.4 0.88 0.88 108.6 595,093 4.5 0.88 0.88 99.2 607,911 4.6 0.88 0.88 90.7 619,608 4.7 0.88 0.88 82.9 630,281 4.7 0.88 0.88 75.8 640,019 4.8 0.88 0.88 69.3 648,900 4.9 0.88 0.88 63.3 656,999 4.9 0.88 0.88 57.9 664,384 5.0 0.88 0.88 52.9 671,115 5.0 0.88 0.88 48.3 677,250 5.1 0.88 0.88 44.2 682,838 5.1 0.88 0.88 40.4 687,928 5.1 0.88 0.88 36.9 692,562 5.2 0.88 0.88 33.7 696,779 5.2 0.88 0.88 30.8 700,615 5.2 0.88 0.88
4.0E-03 2 100% 5.4 5.1 5.1 0.0
1.1 114,650
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 260.4 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFL [cfs] [cfs] OW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77
Bound Discharge [cfs] 0.00 0.00 170.80 196.06 214.00 228.16 239.91 249.94 258.65 266.25 272.99 278.99 284.35 289.11 293.35 297.11 300.41 303.31 305.81 307.95 309.79 311.36 312.73 313.93 314.99 315.92 316.74 317.47 318.13 318.71 319.24 319.71 320.13 320.51 320.85 321.16 321.44 321.69 321.92 322.13 322.32 322.48 322.64
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 77,638 N/A 89,120 N/A 97,273 N/A 103,709 N/A 109,049 N/A 113,608 N/A 117,569 100% 121,021 100% 124,086 100% 126,815 100% 129,248 100% 131,415 100% 133,342 100% 135,049 100% 136,552 100% 137,866 100% 139,005 100% 139,979 100% 140,812 100% 141,529 100% 142,152 100% 142,696 100% 143,175 100% 143,598 100% 143,973 100% 144,306 100% 144,604 100% 144,870 100% 145,108 100% 145,322 100% 145,514 100% 145,687 100% 145,843 100% 145,983 100% 146,110 100% 146,225 100% 146,329 100% 146,422 100% 146,507 100% 146,584 100% 146,653 100% SB 25-yr HG (P2)
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: __2__of __2__
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 05.xlsx
28.2 25.8 23.5 21.5 19.7 18.0 16.4 15.0 13.7 12.5 11.5 10.5 9.6 8.8 8.0 7.3 6.7 6.1 5.6 5.1 4.7 4.3 3.9 3.6 3.3 3.0 2.7 2.5 2.3 2.1 1.9 1.7 1.6 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.8 0.7 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1
704,103 707,273 710,152 712,765 715,124 717,228 719,090 720,725 722,150 723,382 724,437 725,332 726,080 726,696 727,193 727,583 727,878 728,087 728,220 728,285 728,290 728,243 728,148 728,014 727,843 727,642 727,414 727,163 726,892 726,605 726,304 725,991 725,668 725,339 725,003 724,662 724,319 723,974 723,627 723,281 722,935 722,590 722,247 721,907 721,569 721,235 720,904 720,576 720,253 719,933 719,617 719,306 718,999 718,696 718,398 718,103 717,814 717,528 717,247 716,969 716,696
5.3 5.3 5.3 5.3 5.3 5.3 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.3 5.3 5.3 5.3 5.3 5.3 5.3
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
0.88 0.88 0.88 0.93 1.07 1.23 1.40 1.57 1.73 1.88 2.01 2.12 2.22 2.31 2.38 2.43 2.47 2.50 2.52 2.53 2.53 2.52 2.51 2.49 2.47 2.44 2.41 2.37 2.33 2.29 2.25 2.21 2.17 2.12 2.08 2.04 1.99 1.95 1.91 1.86 1.82 1.78 1.74 1.70 1.66 1.63 1.59 1.55 1.52 1.49 1.45 1.42 1.39 1.36 1.34 1.31 1.28 1.26 1.23 1.21 1.19
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.88 0.88 0.88 31.36 31.42 31.47 31.51 31.55 31.59 31.62 31.64 31.67 31.68 31.70 31.71 31.72 31.73 31.73 31.74 31.74 31.74 31.74 31.74 31.73 31.73 31.72 31.72 31.71 31.70 31.70 31.69 31.68 31.67 31.67 31.66 31.65 31.64 31.63 31.62 31.62 31.61 31.60 31.59 31.58 31.57 31.57 31.56 31.55 31.54 31.53 31.53 31.52 31.51 31.50 31.50 31.49 31.48 31.47 31.47 31.46 31.45
1.77 1.77 1.77 1.86 2.13 2.46 2.80 3.14 3.46 3.75 4.02 4.25 4.44 4.61 4.75 4.86 4.94 5.00 5.04 5.06 5.06 5.05 5.02 4.98 4.93 4.88 4.81 4.74 4.67 4.59 4.51 4.42 4.33 4.25 4.16 4.07 3.99 3.90 3.81 3.73 3.64 3.56 3.48 3.40 3.33 3.25 3.18 3.11 3.04 2.97 2.91 2.85 2.79 2.73 2.67 2.62 2.56 2.51 2.46 2.42 2.37
322.78 322.90 323.01 323.12 323.21 323.29 323.36 323.43 323.48 323.53 323.57 323.60 323.63 323.66 323.67 323.69 323.70 323.71 323.71 323.72 323.72 323.71 323.71 323.71 323.70 323.69 323.68 323.67 323.66 323.65 323.64 323.63 323.62 323.60 323.59 323.58 323.56 323.55 323.54 323.52 323.51 323.50 323.48 323.47 323.46 323.44 323.43 323.42 323.41 323.39 323.38 323.37 323.36 323.35 323.33 323.32 323.31 323.30 323.29 323.28 323.27
146,716 146,773 146,824 146,871 146,913 146,950 146,983 147,011 147,036 147,058 147,077 147,092 147,105 147,116 147,125 147,131 147,137 147,140 147,143 147,144 147,144 147,143 147,141 147,139 147,136 147,132 147,129 147,124 147,119 147,114 147,109 147,104 147,098 147,092 147,086 147,080 147,074 147,068 147,062 147,056 147,050 147,044 147,038 147,032 147,026 147,020 147,015 147,009 147,003 146,997 146,992 146,986 146,981 146,976 146,970 146,965 146,960 146,955 146,950 146,945 146,940
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 25-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
OUTFLOW INFLOW [cfs]
200
STAGE [ft]
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #5 Colon Mine Phase 2 Hydrograph 25-Yr Storm
Computed By: PAW Date: 12/31/14 Checked By: EAW
Date: 1/2/15
Sheet: __1__of __2___
Qp = Tp = dT = Max of
or
402.1 29.4 2 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 3.3 5.3 6.0 7.0 20 48 0
Sediment Basin # 5
Phase 2 100 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
260.30 261.00 262.00
255.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 05.xlsx
Colon
4.0E-03 2 97% 6.1 67.5 64.7 2.9
1.1 114,650
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 261.1 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
WEIR BARREL TOTAL Bound RISER INFLOW STORAGE STAGE Skimmer CAPACIT FLOW CAPACITY OUTFLOW Discharge [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] [cfs] [cfs] [cfs] [cfs] 0.0 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 4.6 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 18.1 549 0.0 0.00 0.00 0.00 0.00 0.00 174.16 39.9 2,719 0.0 0.00 0.00 0.00 0.00 0.00 199.93 69.1 7,511 0.1 0.00 0.00 0.00 0.00 0.00 218.23 104.3 15,802 0.2 0.00 0.00 0.00 0.00 0.00 232.68 143.8 28,315 0.3 0.00 0.00 0.00 0.00 0.00 244.67 186.0 45,576 0.4 0.00 0.00 0.00 0.00 0.00 254.92 228.9 67,900 0.6 0.88 0.88 0.00 0.88 1.77 263.84 270.5 95,154 0.8 0.88 0.88 0.00 0.88 1.77 271.62 308.9 127,401 1.1 0.88 0.88 0.00 0.88 1.77 278.55 342.4 164,259 1.4 0.88 0.88 0.00 0.88 1.77 284.71 369.5 205,141 1.7 0.88 0.88 0.00 0.88 1.77 290.22 389.0 249,274 2.0 0.88 0.88 0.00 0.88 1.77 295.14 399.8 295,737 2.4 0.88 0.88 0.00 0.88 1.77 299.52 401.7 343,506 2.7 0.88 0.88 0.00 0.88 1.77 303.41 394.4 391,494 3.1 0.88 0.88 0.00 0.88 1.77 306.85 378.3 438,606 3.4 0.88 0.88 0.00 0.88 1.77 309.87 354.1 483,786 3.7 0.88 0.88 0.00 0.88 1.77 312.50 325.1 526,066 4.0 0.88 0.88 0.00 0.88 1.77 314.77 297.6 564,868 4.3 0.88 0.88 0.00 0.88 1.77 316.70 272.4 600,369 4.5 0.88 0.88 0.00 0.88 1.77 318.37 249.4 632,846 4.8 0.88 0.88 0.00 0.88 1.77 319.82 228.2 662,557 5.0 0.88 0.88 0.00 0.88 1.77 321.09 208.9 689,735 5.2 0.88 0.88 0.00 0.88 1.77 322.20 191.2 714,594 5.3 0.88 1.03 0.00 31.40 2.06 323.19 175.1 737,297 5.5 0.88 3.99 0.00 31.96 7.97 324.06 160.2 757,347 5.6 0.88 8.16 0.00 32.44 16.33 324.81 146.7 774,616 5.7 0.88 12.59 0.00 32.85 25.19 325.44 134.3 789,195 5.8 0.88 16.83 0.00 33.19 33.67 325.97 122.9 801,267 5.9 0.88 20.66 0.00 33.47 41.31 326.39 112.5 811,057 6.0 0.88 23.95 0.00 33.69 47.89 326.73 103.0 818,810 6.0 0.88 26.67 0.29 33.87 53.62 327.00 94.3 824,732 6.1 0.88 28.81 1.07 34.00 58.69 327.21 86.3 829,001 6.1 0.88 30.39 1.81 34.10 62.59 327.35 79.0 831,844 6.1 0.88 31.46 2.37 34.16 65.28 327.45 72.3 833,487 6.1 0.88 32.08 2.72 34.20 66.88 327.50 66.2 834,137 6.1 0.88 32.33 2.86 34.21 67.51 327.53 60.6 833,976 6.1 0.88 32.26 2.83 34.21 67.35 327.52 55.4 833,163 6.1 0.88 31.96 2.65 34.19 66.56 327.49 50.8 831,829 6.1 0.88 31.45 2.37 34.16 65.27 327.45 46.5 830,087 6.1 0.88 30.79 2.02 34.12 63.61 327.39 42.5 828,029 6.1 0.88 30.03 1.63 34.07 61.69 327.32
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 79,166 N/A 90,876 N/A 99,193 N/A 105,762 N/A 111,216 N/A 115,874 N/A 119,926 100% 123,466 100% 126,611 100% 129,415 100% 131,919 100% 134,154 100% 136,145 100% 137,914 100% 139,477 100% 140,850 100% 142,045 100% 143,075 100% 143,956 100% 144,714 100% 145,373 100% 145,949 100% 146,455 100% 146,903 100% 147,300 100% 147,641 100% 147,928 99% 148,166 99% 148,360 99% 148,515 98% 148,637 98% 148,730 97% 148,796 97% 148,840 97% 148,865 97% 148,875 97% 148,873 97% 148,860 97% 148,840 97% 148,813 97% 148,781 97% SB 100-yr HG (P2)
Computed By: PAW Date: 12/31/14 Checked By: EAW
Date: 1/2/15
Sheet: __2__of __2___
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 05.xlsx
38.9 35.6 32.6 29.9 27.3 25.0 22.9 21.0 19.2 17.6 16.1 14.7 13.5 12.3 11.3 10.3 9.5 8.7 7.9 7.3 6.6 6.1 5.6 5.1 4.7 4.3 3.9 3.6 3.3 3.0 2.7 2.5 2.3 2.1 1.9 1.8 1.6 1.5 1.4 1.2 1.1 1.0 0.9 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2
825,729 823,250 820,640 817,938 815,170 812,357 809,504 806,633 803,763 800,910 798,088 795,307 792,576 789,902 787,289 784,742 782,263 779,855 777,517 775,251 773,057 770,933 768,880 766,897 764,981 763,131 761,346 759,624 757,962 756,360 754,816 753,327 751,891 750,507 749,172 747,885 746,645 745,449 744,295 743,182 742,109 741,073 740,073 739,108 738,177 737,277 736,409 735,569 734,758 733,974 733,215 732,482 731,772 731,085 730,420 729,776 729,152 728,548 727,962 727,393
6.1 6.1 6.0 6.0 6.0 6.0 6.0 5.9 5.9 5.9 5.9 5.9 5.9 5.8 5.8 5.8 5.8 5.8 5.8 5.7 5.7 5.7 5.7 5.7 5.7 5.7 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
29.18 28.27 27.32 26.36 25.38 24.40 23.41 22.44 21.48 20.54 19.62 18.74 17.88 17.05 16.26 15.49 14.76 14.07 13.40 12.77 12.17 11.59 11.05 10.53 10.04 9.57 9.13 8.71 8.31 7.93 7.58 7.24 6.92 6.61 6.32 6.05 5.79 5.55 5.31 5.09 4.88 4.68 4.49 4.32 4.15 3.98 3.83 3.69 3.55 3.42 3.29 3.17 3.06 2.95 2.85 2.75 2.66 2.57 2.48 2.40
1.23 0.85 0.49 0.20 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
34.02 33.97 33.91 33.85 33.78 33.72 33.66 33.59 33.52 33.46 33.39 33.33 33.27 33.20 33.14 33.08 33.03 32.97 32.92 32.86 32.81 32.76 32.71 32.67 32.62 32.58 32.53 32.49 32.45 32.42 32.38 32.34 32.31 32.28 32.24 32.21 32.18 32.15 32.13 32.10 32.07 32.05 32.03 32.00 31.98 31.96 31.94 31.92 31.90 31.88 31.86 31.84 31.82 31.81 31.79 31.78 31.76 31.75 31.73 31.72
59.58 57.38 55.14 52.91 50.77 48.79 46.83 44.88 42.96 41.08 39.25 37.47 35.76 34.10 32.51 30.99 29.53 28.14 26.81 25.54 24.33 23.18 22.09 21.06 20.07 19.14 18.26 17.42 16.62 15.87 15.15 14.47 13.83 13.22 12.65 12.10 11.58 11.09 10.62 10.18 9.76 9.37 8.99 8.63 8.29 7.97 7.66 7.37 7.09 6.83 6.58 6.34 6.12 5.90 5.69 5.50 5.31 5.14 4.97 4.81
327.24 327.15 327.07 326.97 326.88 326.78 326.68 326.58 326.48 326.38 326.28 326.18 326.09 325.99 325.90 325.81 325.72 325.63 325.55 325.46 325.39 325.31 325.23 325.16 325.09 325.02 324.96 324.89 324.83 324.77 324.72 324.66 324.61 324.56 324.51 324.46 324.41 324.37 324.32 324.28 324.24 324.20 324.16 324.13 324.09 324.06 324.03 323.99 323.96 323.93 323.90 323.88 323.85 323.82 323.80 323.77 323.75 323.73 323.70 323.68
148,745 148,707 148,666 148,624 148,580 148,536 148,491 148,445 148,400 148,354 148,309 148,265 148,221 148,177 148,135 148,094 148,053 148,014 147,976 147,939 147,902 147,867 147,833 147,800 147,769 147,738 147,708 147,679 147,651 147,624 147,598 147,573 147,549 147,525 147,503 147,481 147,460 147,439 147,420 147,401 147,382 147,365 147,347 147,331 147,315 147,299 147,284 147,270 147,256 147,242 147,229 147,217 147,204 147,192 147,181 147,170 147,159 147,148 147,138 147,128
97% 97% 98% 98% 98% 98% 98% 98% 98% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 100-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
OUTFLOW 250
INFLOW [cfs]
5.0
STAGE [ft] 200
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #5 Colon Mine Phase 2 Hydrograph 100-Yr Storm
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #6
Sheet: 1
Of: 4
Objective
Design the temporary sediment basin to contain the 25-year storm.
References 1. NC Erosion and Sediment Control Planning and Design Manual. 2. "Elements of Urban Stormwater Design" by H. Rooney Malcom, P.E. 3. NOAA Atlas 14, Volume 2, Version 3 4. VA Erosion and Sediment Control Handbook Given Phase Storm Event (yrs) = Total Drainage Area A (ac) = Disturbed Area (ac) = Curve Number CN = Rainfall Depth P (in) = Peak Flow Qp (cfs) =
1 10 15.3 15.3 89 5.28 93.60
1 25 15.3 15.3 89 6.28 114.53
Hydrographs (24-hr rainfall) Hydrographs
Ref 3
Design Criteria Required sediment storage Required sediment storage
1,800 27,540
cf / acre of drainage cf
Required Surface Area Required Surface Area (SF)
435 49,821
sf/cfs of the 10-yr storm peak flow (based on the largest Phase in cfs) of the 10-yr storm peak flow (based on the largest Phase)
Determine Shape of Basin: Measure the area of the Basin using AutoCADD. Calculate Volume of the Basin using Truncated Pyramid Method. Shape factor used in hydrographs basin depth may be gretaer than indicated below
Elevation (ft) 249 250 251 252 253 254 255
Depth (ft) 0 1 2 3 4 5 6
Area (sf) 30,723 34,084 37,519 41,027 44,808 48,997 52,981
Volume (cf) 32,389 35,788 39,260 42,904 46,887 50,976
Design Sediment Depth (ft) = 3 Sediment Storage (cf) = 107,437 Design Surface Area Depth (ft) = 3 Surface Area (sf) = 41,027
Cumulative Vol (cf) 32,389 68,177 107,437 150,340 197,227 248,203
Cumulative Vol (cy) 1,200 2,525 3,979 5,568 7,305 9,193
Required Sediment Storage Achieved
Increase Surface Area
SB Dims SB 06
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #6
Sheet: 2
Of: 4
Select Skimmer A. R. Jarrett Method D = [Q / (2,310 * (H 0.5)]0.5 D =Diameter of Orifice (inches) Q = Dewater Rate (cf/day) H = Head on orifice, varies based on skimmer size (ft) Skimmer Sizes (Inches) 1.5 2 2.5 3 4 5 6 8 Volume to Dewater (cf) = Number of Skimmers Days to Drain = Q each (cf/day) = Selected Skimmer Size (inches) = Head on Skimmer (feet) = Diameter of Orifice (inches) =
Head (ft) 0.125 0.167 0.167 0.250 0.333 0.333 0.417 0.500 107,437 1 5 21,487
assumed 0.25 cfs
5 0.333 4.0
Route the flow through the Basin Riser is not perforated, but skimmer is attached. S = (1000/CN) - 10 2 Runoff Depth Q* (inches) = (P-0.2S) /(P+0.8S) TP (min) = 60.5(Q*)A/QP/1.39
Phase Storm Event (yrs) = S= Runoff Depth Q* (inches) = Time to Peak T p (min) =
1 10 1.24 4.04 28.75
1 25 1.24 5.01 29.11
Determine Pond Storage Elevation (Z Water): Pick one point near max expected water surface and the other at the mid depth. Z1 (ft) = 3 S1 (cf)= 107,437 Z2 (ft) = 5 S2 (cf) = 197,227 b = ln(S2/S1)/ln(Z2/Z1) = 1.2 b
KS = S2/Z2 =
Ref 2, III-4
Ref 2, III-8
29,092
SB Dims SB 06
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #6
Sheet: 3
Of: 4
Determine Settling Velocity Conversion Factor =
3.281 ft/sec per m/sec
2
Gravitational Acceleration, g (m/s ) = Specific Gravity of soil (ss)=
9.81 2.6 2 o 1.14E-06m / sec @ 20 C 40.00E-06 m
Kinematic Viscosity of water (v) = Diameter of the Design Particle d 15 = Design Particle Settling Velocity
=
( g / 18 ) * [ ( s s
Route the Storm through the Basin using the Hydrograph Model Set Height of Emergency Spillway at (ft) = 6.10 Set Top of Dam at (ft) = 7.00
Ref 2, IV-11
- 1 ) / v ] d2 =
4.02E-03
ft/sec
See Hydrograph
Anti-Seep Collar: Anti-Seep Collar Size = 2 * Barrel Dia Anti-Seep Collar Size (ft) = 2 Use Anti-Seep Collar Size (ft) = 2 Minimum Concrete Base for Riser: Diameter of Riser (in) = 18 Avg Density of Concrete (lbs/cf) = Density of Water (lbs/cf) = Riser Displacement (cf) = 8.84 Convert cf to cy = Min Concrete Needed (cy) = Width & Length (ft) = Thickness (ft) = Anti-Vortex Device: Diameter of Riser (in) = Cylinder Diameter (in) = Cylinder Thickness (gage) = Cylinder Height (in) =
x2
From Hydrograph 87.6 62.4 Pi * (DR/24)2 * Total Ht of Riser
27-1 0.23 2.5 1.0
18 27 16 8
From Hydrograph Ref 4, III-104, Table 3.14-D
SB Dims SB 06
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #6
Sheet: 4
Of: 4
Determine Tailwater conditions to size outlet apron Use Normal Depth Procedure (Manning's Eqn.) A*R2/3 = Q*n/1.49 s0.5
Area (A)= bd+z(d^2)
Z req = Q*n/1.49s0.5
R=Area/(b+2d((z^2)+1)^.5)
n= Vp (ft/sec) = Side Slope (z) = s (ft/ft) = Bottom Width (ft) = QB (cfs) =
Q (cfs) 3.6
Zreq 1.18
0.069 9 5 0.02 3 3.6 Flow Depth d (ft) 0.47
Ref 2, II-7
Zav = A*R2/3
6-inch diameter Rip Rap, Lined Channel Permissible Velocity for lining enter X for X:1 Outlet Slope (estimated) 3 * Barrel Diameter Peak Flow out of the barrel 10-yr Hydrograph
A (sf) 2.5
R (ft) 0.32
Zav 1.18
Flow Depth = Tailwater, d (ft) = 0.47 0.5* Barrel Diameter (ft) = 0.50 Minimum Tailwater Conditions: d0.5*Diameter of Outlet Pipe Since the Tailwater is less than half of the diameter of the outlet, use Minimum Tailwater conditions. Barrel Diameter (ft) 1
Entrance (ft) 3
Length (ft) 8
Outlet Width (ft) 9
Median Rip Rap Size d50 0.3
V (ft/sec) 1.4 Ref 1, 8.06.3
Selected Rip Rap Size (in) Class A
Conclusion The temporary basin can contain the 25-yr storm.
SB Dims SB 06
I Job No. 0453925-237673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow
Diameter of Riser (in) = Circumference of Riser (in) = Height of Riser from bottom of barrel (in) = Vertical spacing between holes (in) = Water Stage increment (ft)
18 56.5 60 0 0.05
l
Computed: PAW Date: 3/4/15 Checked: MDP Date: 3/6/15 Sheet: 1 Of: 2
From Hydrograph center to center
Orifice Equation Q = Cd * A * (2 * g * h)0.5 Q = cfs, discharge Cd = 0.6 coefficient of discharge A = sf, cross sectional area
Ref 1, p III-11
ft/sec2, gravity g = 32.2 h = ft, driving head measured from the center of the pipe
Row Holes per row Hole Diameter (in) Spacing edge to edge (in) Inlet Area (sf) Hole Stage (in) Hole Stage (ft)
1 0 0.75
2 0 0.75
Perforations 3 0 0.75
4 0 0.75
5 0 0.75
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
Skimmer 1
# of skimmers
Water Stage (ft) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Total Flow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.00 0.00 0.29 0.00 0.00 0.00 0.00 0.00 0.34 0.00 0.00 0.00 0.25 0.25 0.39 0.00 0.00 0.00 0.25 0.25 0.44 0.00 0.00 0.00 0.25 0.25 0.49 0.00 0.00 0.00 0.25 0.25 0.54 0.00 0.00 0.00 0.25 0.25 0.59 0.00 0.00 0.00 0.25 0.25 0.64 0.00 0.00 0.00 0.25 0.25 0.69 0.00 0.00 0.00 0.25 0.25 0.74 0.00 0.00 0.00 0.25 0.25 0.79 0.00 0.00 0.00 0.25 0.25 0.84 0.00 0.00 0.00 0.25 0.25 0.89 0.00 0.00 0.00 0.25 0.25 0.94 0.00 0.00 0.00 0.25 0.25 0.99 0.00 0.00 0.00 0.25 0.25 1.04 0.00 0.00 0.00 0.25 0.25 1.09 0.00 0.00 0.00 0.25 0.25 1.14 0.00 0.00 0.00 0.25 0.25 1.19 0.00 0.00 0.00 0.25 0.25 1.24 0.00 0.00 0.00 0.25 0.25 1.29 0.00 0.00 0.00 0.25 0.25 1.34 0.00 0.00 0.00 0.25 0.25 1.39 0.00 0.00 0.00 0.25 0.25 1.44 0.00 0.00 0.00 0.25 0.25 1.49 0.00 0.00 0.00 0.25 0.25 1.54 0.00 0.00 0.00 0.25 0.25 1.59 0.00 0.00 0.00 0.25 0.25 SB 06
Pipe Perf-Skimmer
I Job No. 0453925-237673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow 1.64 1.69 1.74 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.59 2.64 2.69 2.74 2.79 2.84 2.89 2.94 2.99 3.04 3.09 3.14 3.19 3.24 3.29 3.34 3.39 3.44 3.49 3.54 3.59 3.64 3.69 3.74 3.79 3.84 3.89 3.94 3.99
SB 06
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
l
Computed: PAW Date: 3/4/15 Checked: MDP Date: 3/6/15 Sheet: 2 Of: 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
Pipe Perf-Skimmer
Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: _1__of _2__
Sediment Basin #
Qp =
93.60
cfs
Tp =
28.75
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
SB 06
Colon
1 12 4.0 5.0 6.1 7.0 10 18 0
10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
254.00 255.10 256.00
249.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
6
Phase 1
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.1 0 0.0 0.00 0.00 4.4 134 0.0 0.00 0.00 9.7 662 0.0 0.00 0.00 16.8 1,826 0.1 0.00 0.00 25.3 3,839 0.2 0.00 0.00 34.8 6,872 0.3 0.00 0.00 44.9 11,048 0.4 0.25 0.25 55.1 16,405 0.6 0.25 0.25 64.9 22,984 0.8 0.25 0.25 73.8 30,738 1.0 0.25 0.25 81.4 39,564 1.3 0.25 0.25 87.4 49,307 1.6 0.25 0.25 91.5 59,770 1.8 0.25 0.25 93.4 70,721 2.1 0.25 0.25 93.2 81,905 2.4 0.25 0.25 90.7 93,054 2.7 0.25 0.25 86.1 103,905 2.9 0.25 0.25 79.8 114,207 3.2 0.25 0.25 72.9 123,747 3.4 0.25 0.25 66.6 132,460 3.6 0.25 0.25 60.8 140,417 3.8 0.25 0.25 55.5 147,683 3.9 0.25 0.25 50.7 154,318 4.1 0.25 0.25 46.4 160,377 4.2 0.25 0.25 42.3 165,910 4.3 0.25 0.25 38.7 170,961 4.4 0.25 0.25 35.3 175,573 4.5 0.25 0.25 32.3 179,784 4.6 0.25 0.25 29.5 183,627 4.7 0.25 0.25 26.9 187,136 4.8 0.25 0.25 24.6 190,339 4.9 0.25 0.25 22.5 193,263 4.9 0.25 0.25 20.5 195,931 5.0 0.25 0.25 18.8 198,365 5.0 0.25 0.31 17.1 200,580 5.1 0.25 0.55 15.7 202,571 5.1 0.25 0.84 14.3 204,349 5.2 0.25 1.16 13.1 205,925 5.2 0.25 1.48 11.9 207,315 5.2 0.25 1.79 10.9 208,533 5.2 0.25 2.08 10.0 209,592 5.3 0.25 2.34
4.0E-03 2 100% 5.4 3.6 3.6 0.0
1.2 29,092
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 254.36 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 8.03 0.31 0.00 8.07 0.55 0.00 8.11 0.84 0.00 8.14 1.16 0.00 8.17 1.48 0.00 8.20 1.79 0.00 8.22 2.08 0.00 8.24 2.34
Bound Discharge [cfs] 0.00 0.00 32.33 41.69 49.00 55.15 60.50 65.25 69.48 73.31 76.78 79.92 82.77 85.35 87.66 89.73 91.57 93.19 94.61 95.82 96.86 97.77 98.55 99.25 99.86 100.40 100.88 101.30 101.69 102.03 102.34 102.61 102.86 103.09 103.29 103.47 103.64 103.78 103.91 104.02 104.11 104.20
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 14,693 N/A 18,952 N/A 22,273 N/A 25,068 N/A 27,500 N/A 29,657 100% 31,582 100% 33,322 100% 34,900 100% 36,329 100% 37,624 100% 38,794 100% 39,846 100% 40,787 100% 41,624 100% 42,361 100% 43,003 100% 43,555 100% 44,029 100% 44,439 100% 44,797 100% 45,112 100% 45,389 100% 45,634 100% 45,853 100% 46,047 100% 46,221 100% 46,377 100% 46,517 100% 46,643 100% 46,756 100% 46,858 100% 46,950 100% 47,033 100% 47,107 100% 47,172 100% 47,230 100% 47,281 100% 47,325 100% 47,363 100% SB 10-yr (P1) HG
Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: _2__of _2__
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 06
9.1 8.3 7.6 6.9 6.3 5.8 5.3 4.8 4.4 4.0 3.7 3.4 3.1 2.8 2.6 2.3 2.1 2.0 1.8 1.6 1.5 1.4 1.2 1.1 1.0 0.9 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0
210,507 211,290 211,954 212,510 212,969 213,340 213,633 213,855 214,015 214,119 214,174 214,185 214,157 214,096 214,004 213,887 213,747 213,588 213,412 213,222 213,020 212,808 212,588 212,360 212,128 211,892 211,652 211,411 211,168 210,925 210,683 210,441 210,200 209,962 209,725 209,491 209,259 209,031 208,806 208,584 208,365 208,150 207,939 207,731 207,527 207,327 207,130 206,937 206,748 206,563 206,381 206,203 206,029 205,858 205,691 205,527 205,366 205,209 205,055 204,905 204,757 204,612
5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2
0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
2.57 2.78 2.96 3.11 3.24 3.35 3.43 3.50 3.55 3.58 3.59 3.60 3.59 3.57 3.54 3.51 3.47 3.42 3.37 3.32 3.26 3.20 3.14 3.07 3.01 2.94 2.88 2.81 2.75 2.68 2.62 2.56 2.49 2.43 2.37 2.31 2.25 2.20 2.14 2.09 2.04 1.98 1.93 1.89 1.84 1.79 1.75 1.70 1.66 1.62 1.58 1.54 1.51 1.47 1.43 1.40 1.37 1.34 1.30 1.27 1.24 1.22
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
8.26 8.27 8.28 8.29 8.30 8.31 8.31 8.32 8.32 8.32 8.32 8.32 8.32 8.32 8.32 8.32 8.31 8.31 8.31 8.31 8.30 8.30 8.29 8.29 8.29 8.28 8.28 8.27 8.27 8.26 8.26 8.26 8.25 8.25 8.24 8.24 8.23 8.23 8.23 8.22 8.22 8.21 8.21 8.21 8.20 8.20 8.19 8.19 8.19 8.18 8.18 8.18 8.17 8.17 8.17 8.16 8.16 8.16 8.16 8.15 8.15 8.15
2.57 2.78 2.96 3.11 3.24 3.35 3.43 3.50 3.55 3.58 3.59 3.60 3.59 3.57 3.54 3.51 3.47 3.42 3.37 3.32 3.26 3.20 3.14 3.07 3.01 2.94 2.88 2.81 2.75 2.68 2.62 2.56 2.49 2.43 2.37 2.31 2.25 2.20 2.14 2.09 2.04 1.98 1.93 1.89 1.84 1.79 1.75 1.70 1.66 1.62 1.58 1.54 1.51 1.47 1.43 1.40 1.37 1.34 1.30 1.27 1.24 1.22
104.27 104.33 104.38 104.43 104.46 104.49 104.52 104.53 104.55 104.55 104.56 104.56 104.56 104.55 104.54 104.54 104.52 104.51 104.50 104.48 104.47 104.45 104.43 104.42 104.40 104.38 104.36 104.34 104.32 104.30 104.28 104.27 104.25 104.23 104.21 104.19 104.17 104.15 104.14 104.12 104.10 104.08 104.07 104.05 104.03 104.02 104.00 103.99 103.97 103.96 103.94 103.93 103.91 103.90 103.89 103.87 103.86 103.85 103.84 103.82 103.81 103.80
47,396 47,424 47,447 47,467 47,484 47,497 47,507 47,515 47,521 47,524 47,526 47,527 47,526 47,523 47,520 47,516 47,511 47,505 47,499 47,493 47,485 47,478 47,470 47,462 47,454 47,445 47,437 47,428 47,419 47,411 47,402 47,393 47,385 47,376 47,368 47,359 47,351 47,343 47,335 47,327 47,319 47,311 47,303 47,296 47,288 47,281 47,274 47,267 47,260 47,253 47,247 47,240 47,234 47,228 47,222 47,216 47,210 47,204 47,198 47,193 47,187 47,182
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #6 Colon Mine Phase 1 Hydrograph 10-Yr Storm
This page intentionally left blank.
Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: _1__of _2__
Sediment Basin #
Qp =
114.53
cfs
Tp =
29.11
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
SB 06
Colon
1 12 4 5 6.1 7 10 18 0
25 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
254.00 255.10 256.00
249.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
6
Phase 1
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.3 0 0.0 0.00 0.00 5.3 159 0.0 0.00 0.00 11.6 790 0.0 0.00 0.00 20.0 2,180 0.1 0.00 0.00 30.2 4,586 0.2 0.00 0.00 41.7 8,213 0.3 0.25 0.25 53.8 13,183 0.5 0.25 0.25 66.1 19,613 0.7 0.25 0.25 78.1 27,521 1.0 0.25 0.25 89.0 36,858 1.2 0.25 0.25 98.5 47,508 1.5 0.25 0.25 106.0 59,295 1.8 0.25 0.25 111.3 71,989 2.1 0.25 0.25 114.1 85,318 2.5 0.25 0.25 114.3 98,983 2.8 0.25 0.25 111.8 112,665 3.1 0.25 0.25 106.8 126,048 3.4 0.25 0.25 99.4 138,828 3.7 0.25 0.25 91.1 150,730 4.0 0.25 0.25 83.3 161,632 4.2 0.25 0.25 76.2 171,599 4.4 0.25 0.25 69.7 180,713 4.6 0.25 0.25 63.7 189,045 4.8 0.25 0.25 58.3 196,663 5.0 0.25 0.25 53.3 203,627 5.1 0.25 1.03 48.8 209,900 5.3 0.25 2.42 44.6 215,461 5.4 0.25 3.98 40.8 220,334 5.5 0.25 5.55 37.3 224,561 5.6 0.25 7.06 34.1 228,189 5.7 0.25 8.44 31.2 231,269 5.7 0.25 9.68 28.5 233,977 5.8 0.25 10.81 26.1 236,360 5.8 0.25 11.84 23.9 238,446 5.9 0.25 12.76 21.8 240,260 5.9 0.25 13.59 20.0 241,826 5.9 0.25 14.31 18.3 243,165 6.0 0.25 14.94 16.7 244,296 6.0 0.25 15.47 15.3 245,238 6.0 0.25 15.93 14.0 246,007 6.0 0.25 16.30 12.8 246,618 6.0 0.25 16.59
4.0E-03 2 99% 6.1 8.9 8.9 0.0
1.2 29,092
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 255.06 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 8.13 1.03 0.00 8.25 2.42 0.00 8.35 3.98 0.00 8.43 5.55 0.00 8.51 7.06 0.00 8.57 8.44 0.00 8.62 8.62 0.00 8.67 8.67 0.00 8.71 8.71 0.00 8.75 8.75 0.00 8.78 8.78 0.00 8.80 8.80 0.00 8.82 8.82 0.00 8.84 8.84 0.00 8.86 8.86 0.00 8.87 8.87 0.00 8.88 8.88
Bound Discharge [cfs] 0.00 0.00 33.25 42.88 50.40 56.73 62.24 67.11 71.48 75.44 79.03 82.29 85.24 87.91 90.32 92.48 94.40 96.10 97.59 98.87 99.98 100.94 101.77 102.50 103.15 103.72 104.22 104.66 105.03 105.35 105.62 105.84 106.04 106.21 106.36 106.49 106.60 106.69 106.77 106.83 106.89 106.93
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 15,112 N/A 19,492 N/A 22,910 N/A 25,786 N/A 28,291 100% 30,503 100% 32,492 100% 34,291 100% 35,922 100% 37,402 100% 38,745 100% 39,959 100% 41,053 100% 42,035 100% 42,910 100% 43,683 100% 44,359 100% 44,943 100% 45,445 100% 45,880 100% 46,259 100% 46,592 100% 46,886 100% 47,146 100% 47,374 100% 47,571 100% 47,741 100% 47,886 100% 48,008 99% 48,110 99% 48,199 99% 48,277 99% 48,345 99% 48,403 99% 48,453 99% 48,496 99% 48,532 99% 48,561 99% 48,585 99% 48,605 99% SB 25-yr (P1) HG
Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: _2__of _2__
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 06
11.7 10.7 9.8 8.9 8.2 7.5 6.8 6.3 5.7 5.2 4.8 4.4 4.0 3.7 3.3 3.1 2.8 2.6 2.3 2.1 2.0 1.8 1.6 1.5 1.4 1.3 1.1 1.0 1.0 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
247,085 247,420 247,634 247,739 247,743 247,655 247,484 247,237 246,920 246,540 246,101 245,610 245,071 244,488 243,866 243,207 242,515 241,793 241,044 240,270 239,474 238,657 237,822 236,970 236,104 235,223 234,331 233,427 232,513 231,591 230,661 229,723 228,780 227,830 226,908 226,022 225,171 224,353 223,567 222,811 222,083 221,383 220,709 220,061 219,435 218,833 218,252 217,692 217,152 216,631 216,128 215,642 215,173 214,720 214,281 213,858 213,448 213,052 212,668 212,297 211,938 211,590
6.0 6.1 6.1 6.1 6.1 6.1 6.1 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.8 5.8 5.8 5.8 5.8 5.7 5.7 5.7 5.7 5.7 5.6 5.6 5.6 5.6 5.6 5.6 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.3 5.3 5.3 5.3 5.3 5.3
0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
16.82 16.99 17.09 17.14 17.15 17.10 17.02 16.90 16.74 16.56 16.34 16.10 15.84 15.57 15.27 14.96 14.63 14.29 13.95 13.59 13.23 12.86 12.48 12.11 11.73 11.34 10.96 10.58 10.19 9.81 9.43 9.05 8.67 8.30 7.94 7.61 7.28 6.98 6.69 6.42 6.16 5.92 5.68 5.46 5.25 5.05 4.86 4.68 4.50 4.34 4.18 4.03 3.89 3.75 3.62 3.50 3.38 3.27 3.16 3.06 2.96 2.86
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
8.89 8.90 8.90 8.90 8.90 8.90 8.90 8.89 8.89 8.88 8.87 8.87 8.86 8.85 8.84 8.83 8.81 8.80 8.79 8.78 8.76 8.75 8.74 8.72 8.71 8.69 8.68 8.66 8.64 8.63 8.61 8.60 8.58 8.56 8.55 8.53 8.52 8.50 8.49 8.48 8.46 8.45 8.44 8.43 8.42 8.41 8.40 8.39 8.38 8.37 8.36 8.35 8.34 8.33 8.32 8.32 8.31 8.30 8.30 8.29 8.28 8.28
8.89 8.90 8.90 8.90 8.90 8.90 8.90 8.89 8.89 8.88 8.87 8.87 8.86 8.85 8.84 8.83 8.81 8.80 8.79 8.78 8.76 8.75 8.74 8.72 8.71 8.69 8.68 8.66 8.64 8.63 8.61 8.60 8.58 8.30 7.94 7.61 7.28 6.98 6.69 6.42 6.16 5.92 5.68 5.46 5.25 5.05 4.86 4.68 4.50 4.34 4.18 4.03 3.89 3.75 3.62 3.50 3.38 3.27 3.16 3.06 2.96 2.86
106.96 106.99 107.00 107.01 107.01 107.00 106.99 106.97 106.95 106.92 106.89 106.86 106.82 106.78 106.74 106.69 106.65 106.59 106.54 106.49 106.43 106.37 106.31 106.25 106.19 106.13 106.06 106.00 105.93 105.87 105.80 105.73 105.66 105.59 105.52 105.46 105.39 105.33 105.27 105.22 105.16 105.11 105.06 105.01 104.96 104.92 104.87 104.83 104.79 104.75 104.71 104.67 104.63 104.60 104.57 104.53 104.50 104.47 104.44 104.41 104.38 104.36
48,619 48,630 48,636 48,640 48,640 48,637 48,632 48,624 48,614 48,602 48,588 48,573 48,556 48,538 48,518 48,497 48,475 48,452 48,428 48,403 48,378 48,352 48,325 48,297 48,269 48,240 48,211 48,181 48,151 48,121 48,090 48,059 48,028 47,996 47,965 47,935 47,906 47,879 47,852 47,826 47,801 47,777 47,754 47,732 47,710 47,689 47,669 47,650 47,631 47,612 47,595 47,578 47,561 47,545 47,530 47,515 47,501 47,486 47,473 47,460 47,447 47,434
99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 25-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #6 Colon Mine Phase 1 Hydrograph 25-Yr Storm
This page intentionally left blank.
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #7
Sheet: 1
Of:
Objective
Design the sediment basin to contain the 10-year storm and pass the 100-year storm without over topping the berm.
4
References 1. NC Erosion and Sediment Control Planning and Design Manual. 2. "Elements of Urban Stormwater Design" by H. Rooney Malcom, P.E. 3. VA Erosion and Sediment Control Handbook 3. NOAA Atlas 14, Volume 2, Version 3 Given Phase Storm Event (yrs) = Total Drainage Area A (ac) = Disturbed Area (ac) = Curve Number CN = Rainfall Depth P (in) = Peak Flow Qp (cfs) =
1 10 16.4 12.5 82 5.28 85.59
2 10 33.1 29.3 81 5.28 134.71
2 25 33.1 29.3 81 6.28 171.36
2 100 33.1 29.3 81 7.88 230.40
Hydrographs (24-hr rainfall) Hydrographs
Ref 3
Design Criteria Required sediment storage Required sediment storage
1,800 59,580
cf / acre of drainage cf (based on largest Phase)
Required Surface Area Required Surface Area (SF)
435 58,599
sf/cfs of the 10-yr storm peak flow (based on the largest Phase in cfs) of the 10-yr storm peak flow (based on the largest Phase)
Determine Shape of Basin: Measure the area of the Basin using AutoCADD. Calculate Volume of the Basin using Truncated Pyramid Method. Shape factor used in hydrographs basin depth may be gretaer than indicated below
Elevation (ft) 238 239 240 241 242 243 244
Depth (ft) 0 1 2 3 4 5 6
Area (sf) 49,034 52,537 56,098 59,717 63,393 67,128 70,920
Volume (cf) 0 50,775 54,308 57,898 61,546 65,252 69,015
Design Sediment Depth (ft) = 3 Sediment Storage (cf) = 162,981 Design Surface Area Depth (ft) = 3 Surface Area (sf) = 59,717
Cumulative Vol (cf) 0 50,775 105,083 162,981 224,527 289,779 358,794
Cumulative Vol (cy) 0 1,881 3,892 6,036 8,316 10,733 13,289
Required Sediment Storage Achieved
Required Surface Area Achieved
SB Dims SB 07.xlsx
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #7
Sheet: 2
Of:
4
Select Skimmer A. R. Jarrett Method D = [Q / (2,310 * (H 0.5)]0.5 D =Diameter of Orifice (inches) Q = Dewater Rate (cf/day) H = Head on orifice, varies based on skimmer size (ft) Skimmer Sizes (Inches) 1.5 2 2.5 3 4 5 6 8 Volume to Dewater (cf) = Number of Skimmers Days to Drain = Q each (cf/day) = Selected Skimmer Size (inches) = Head on Skimmer (feet) = Diameter of Orifice (inches) =
Head (ft) 0.125 0.167 0.167 0.250 0.333 0.333 0.417 0.500 162,981 2 5 16,298
assumed 0.19 cfs
4 0.333 3.5
Route the flow through the Basin Riser is not perforated, but skimmer is attached. S = (1000/CN) - 10 2 Runoff Depth Q* (inches) = (P-0.2S) /(P+0.8S) TP (min) = 60.5(Q*)A/QP/1.39
Phase Storm Event (yrs) = S= Runoff Depth Q* (inches) = Time to Peak T p (min) =
1 10 2.20 3.33 27.78
2 10 2.35 3.23 34.59
Ref 2, III-4
2 25 2.35 4.14 34.80
Determine Pond Storage Elevation (ZWater): Pick one point near max expected water surface and the other at the mid depth. Z1 (ft) = 3 S1 (cf)= 162,981 Z2 (ft) = 6 S2 (cf) = 358,794 1.1 b = ln(S2/S1)/ln(Z2/Z1) = b
KS = S2/Z2 =
2 100 2.35 5.63 35.20
Ref 2, III-8
46,662
SB Dims SB 07.xlsx
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #7
Sheet: 3
Of:
Determine Settling Velocity Conversion Factor =
3.281 ft/sec per m/sec
2
Gravitational Acceleration, g (m/s ) = Specific Gravity of soil (ss)= Kinematic Viscosity of water (v) = Diameter of the Design Particle d15 = Design Particle Settling Velocity
4
9.81 2.6 2 o 1.14E-06m / sec @ 20 C 40.00E-06 m
=
( g / 18 ) * [ ( ss
Route the Storm through the Basin using the Hydrograph Model Set Height of Emergency Spillway at (ft) = 6.90 Set Top of Dam at (ft) = 7.50 Emergency Spillway QE (cfs) = 100-Yr Storm QE (cfs) = 21.1 Cross Section = Trapezoid Channel Side Slope (z) = 5 n= 0.03 Vp (ft/sec) = 5.0 Allowable Shear Stress (psf) = 2.0 Bottom Width, b (ft) = 20
Ref 2, IV-11
- 1 ) / v ] d2 =
4.02E-03
ft/sec
See Hydrograph
(enter X for X:1) Grass Lined Permissible Velocity for lining Allowable Shear Stress for lining
Ref 2, II-7
Calculate Required Depth of Spillway: Normal-Depth Procedure AR2/3=Qn/1.49s0.5
Q=VA
Zreq=Qn/1.49s0.5
Area (A)= bd+z(d^2)
2/3
Zav=AR
Channel Slope ft/ft 0.01 0.02
Depth, d (ft) 0.39 0.32
A (sf) 8.50 6.82
Construct the channel to be :
R=Area/(b+2d((z^2)+1)^.5) Avg Shear Stress(T) = Kb*d*s*unit weight of water
Zreq 4.26 3.01 20 0.6 1%
R 0.35 0.29
Z avail 4.26 3.01
V (ft/sec) 2.5 3.1
T (psf) 0.2 0.4
ft, Bottom Width (measured at top of lining) ft, depth (measured at top of lining) slope
Anti-Seep Collar: Anti-Seep Collar Size = 2 * Barrel Dia Anti-Seep Collar Size (ft) = 4 Use Anti-Seep Collar Size (ft) = 4
x4
SB Dims SB 07.xlsx
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #7
Sheet: 4
Of:
Minimum Concrete Base for Riser: Diameter of Riser (in) = 60 Avg Density of Concrete (lbs/cf) = Density of Water (lbs/cf) =
From Hydrograph 87.6 62.4
Riser Displacement (cf) = 125.66 Convert cf to cy = Min Concrete Needed (cy) = Width & Length (ft) = Thickness (ft) = Anti-Vortex Device: Diameter of Riser (in) = Cylinder Diameter (in) = Cylinder Thickness (gage) = Cylinder Height (in) =
4
Pi * (DR/24)2 * Total Ht of Riser
27-1 3.32 6 2.5
60 90 14 29
From Hydrograph Ref 3, III-104, Table 3.14-D
Determine Tailwater conditions to size outlet apron Use Normal Depth Procedure (Manning's Eqn.) A*R2/3 = Q*n/1.49 s0.5
Area (A)= bd+z(d^2)
Z req = Q*n/1.49s0.5
R=Area/(b+2d((z^2)+1)^.5)
n= Vp (ft/sec) = Side Slope (z) = s (ft/ft) = Bottom Width (ft) = QB (cfs) =
Q (cfs) 34.3
Zreq 11.23
0.069 9 5 0.02 12 34.3 Flow Depth d (ft) 0.88
Ref 2, II-7
Zav = A*R2/3
6-inch diameter Rip Rap, Lined Channel Permissible Velocity for lining enter X for X:1 Outlet Slope (estimated) 6 * Barrel Diameter Peak Flow out of the barrel 25-yr Hydrograph
A (sf) 14.4
R (ft) 0.69
Zav 11.23
V (ft/sec) 2.4
Flow Depth = Tailwater, d (ft) = 0.88 0.5* Barrel Diameter (ft) = 1.00 Minimum Tailwater Conditions: d0.5*Diameter of Outlet Pipe Since the Tailwater is less than half of the diameter of the outlet, use Minimum Tailwater conditions. Barrel Diameter (ft) 2
Entrance (ft) 6
Length (ft) 10
Outlet Width (ft) 12
Median Rip Rap Size d50 0.7
Ref 1, 8.06.3
Selected Rip Rap Size (in) Class B
Conclusion The basin can contain the 10-yr storm and pass the 100-yr storm without overtopping the berm.
SB Dims SB 07.xlsx
I Job No. 06985-10570-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow
Diameter of Riser (in) = Circumference of Riser (in) = Height of Riser from bottom of barrel (in) = Vertical spacing between holes (in) = Water Stage increment (ft)
60 188.5 77 0 0.05
l
Computed: PAW Date: 12/31/14 Checked: EAW Date: 1/2/15 Sheet 1 Of 2
From Hydrograph center to center
Orifice Equation Q = Cd * A * (2 * g * h)0.5 Q = cfs, discharge Cd = 0.6 coefficient of discharge A = sf, cross sectional area
Ref 1, p III-11
ft/sec2, gravity g = 32.2 h = ft, driving head measured from the center of the pipe
Row Holes per row Hole Diameter (in) Spacing edge to edge (in) Inlet Area (sf) Hole Stage (in) Hole Stage (ft)
1 0 0.75
2 0 0.75
Perforations 3 0 0.75
4 0 0.75
5 0 0.75
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
Skimmer 2
# of skimmers
Water Stage (ft) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Total Flow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.00 0.00 0.29 0.00 0.00 0.00 0.00 0.00 0.34 0.00 0.00 0.00 0.38 0.38 0.39 0.00 0.00 0.00 0.38 0.38 0.44 0.00 0.00 0.00 0.38 0.38 0.49 0.00 0.00 0.00 0.38 0.38 0.54 0.00 0.00 0.00 0.38 0.38 0.59 0.00 0.00 0.00 0.38 0.38 0.64 0.00 0.00 0.00 0.38 0.38 0.69 0.00 0.00 0.00 0.38 0.38 0.74 0.00 0.00 0.00 0.38 0.38 0.79 0.00 0.00 0.00 0.38 0.38 0.84 0.00 0.00 0.00 0.38 0.38 0.89 0.00 0.00 0.00 0.38 0.38 0.94 0.00 0.00 0.00 0.38 0.38 0.99 0.00 0.00 0.00 0.38 0.38 1.04 0.00 0.00 0.00 0.38 0.38 1.09 0.00 0.00 0.00 0.38 0.38 1.14 0.00 0.00 0.00 0.38 0.38 1.19 0.00 0.00 0.00 0.38 0.38 1.24 0.00 0.00 0.00 0.38 0.38 1.29 0.00 0.00 0.00 0.38 0.38 1.34 0.00 0.00 0.00 0.38 0.38 1.39 0.00 0.00 0.00 0.38 0.38 1.44 0.00 0.00 0.00 0.38 0.38 1.49 0.00 0.00 0.00 0.38 0.38 1.54 0.00 0.00 0.00 0.38 0.38 1.59 0.00 0.00 0.00 0.38 0.38 SB 07.xlsx
Pipe Perf-Skimmer
I Job No. 06985-10570-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow 1.64 1.69 1.74 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.59 2.64 2.69 2.74 2.79 2.84 2.89 2.94 2.99 3.04 3.09 3.14 3.19 3.24 3.29 3.34 3.39 3.44 3.49 3.54 3.59 3.64 3.69 3.74 3.79 3.84 3.89 3.94 3.99
SB 07.xlsx
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
l
Computed: PAW Date: 12/31/14 Checked: EAW Date: 1/2/15 Sheet 2 Of 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
Pipe Perf-Skimmer
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _1__of __2_
Sediment Basin #
Qp =
85.59
cfs
Tp =
27.78
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 4.4 6.4 6.9 7.5 20 60 0
b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
244.40 244.90 245.50
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.1 0 0.0 0.00 0.00 4.3 131 0.0 0.00 0.00 9.5 647 0.0 0.00 0.00 16.4 1,785 0.1 0.00 0.00 24.6 3,748 0.1 0.00 0.00 33.7 6,696 0.2 0.00 0.00 43.3 10,743 0.3 0.00 0.00 52.9 15,943 0.4 0.38 0.38 62.0 22,203 0.5 0.38 0.38 70.1 29,550 0.7 0.38 0.38 76.8 37,868 0.8 0.38 0.38 81.7 46,991 1.0 0.38 0.38 84.7 56,709 1.2 0.38 0.38 85.6 66,786 1.4 0.38 0.38 84.2 76,965 1.6 0.38 0.38 80.8 86,984 1.7 0.38 0.38 75.4 96,589 1.9 0.38 0.38 68.9 105,550 2.0 0.38 0.38 62.7 113,727 2.2 0.38 0.38 57.1 121,166 2.3 0.38 0.38 52.0 127,931 2.4 0.38 0.38 47.4 134,084 2.5 0.38 0.38 43.1 139,680 2.6 0.38 0.38 39.3 144,767 2.7 0.38 0.38 35.8 149,391 2.8 0.38 0.38 32.6 153,595 2.8 0.38 0.38 29.7 157,414 2.9 0.38 0.38 27.0 160,884 3.0 0.38 0.38 24.6 164,036 3.0 0.38 0.38 22.4 166,899 3.1 0.38 0.38 20.4 169,497 3.1 0.38 0.38 18.6 171,855 3.1 0.38 0.38 16.9 173,995 3.2 0.38 0.38 15.4 175,935 3.2 0.38 0.38 14.0 177,693 3.2 0.38 0.38 12.8 179,287 3.3 0.38 0.38 11.6 180,730 3.3 0.38 0.38 10.6 182,036 3.3 0.38 0.38 9.7 183,217 3.3 0.38 0.38 8.8 184,285 3.3 0.38 0.38 8.0 185,249 3.4 0.38 0.38
SB 07.xlsx
Colon
10 - year Storm Event
238.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
7
Phase 1
4.0E-03 2 100% 3.5 0.8 0.8 0.0
1.1 46,662
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 241.48 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75
Bound Discharge [cfs] 0.00 0.00 57.19 69.47 78.58 86.00 92.29 97.75 102.56 106.77 110.55 113.94 116.97 119.67 122.08 124.20 126.06 127.68 129.06 130.24 131.25 132.12 132.88 133.54 134.12 134.63 135.09 135.49 135.85 136.17 136.46 136.72 136.95 137.15 137.34 137.50 137.65 137.79 137.91 138.02 138.12 138.20
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 25,995 N/A 31,575 N/A 35,720 N/A 39,091 N/A 41,951 N/A 44,433 N/A 46,618 100% 48,534 100% 50,251 100% 51,790 100% 53,167 100% 54,397 100% 55,490 100% 56,455 100% 57,302 100% 58,036 100% 58,666 100% 59,201 100% 59,658 100% 60,054 100% 60,398 100% 60,699 100% 60,964 100% 61,197 100% 61,404 100% 61,588 100% 61,751 100% 61,897 100% 62,028 100% 62,144 100% 62,249 100% 62,342 100% 62,427 100% 62,502 100% 62,570 100% 62,631 100% 62,686 100% 62,735 100% 62,780 100% 62,819 100% SB 10-yr (P1) HG
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _2__of __2_
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 07.xlsx
7.3 6.6 6.0 5.5 5.0 4.6 4.2 3.8 3.4 3.1 2.9 2.6 2.4 2.2 2.0 1.8 1.6 1.5 1.4 1.2 1.1 1.0 0.9 0.8 0.8 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
186,118 186,902 187,608 188,243 188,813 189,324 189,781 190,189 190,553 190,876 191,162 191,414 191,636 191,830 191,999 192,144 192,268 192,373 192,461 192,532 192,590 192,634 192,666 192,687 192,698 192,700 192,693 192,679 192,659 192,632 192,599 192,561 192,519 192,472 192,421 192,367 192,310 192,249 192,186 192,120 192,053 191,983 191,911 191,838 191,763 191,686 191,609 191,530 191,450 191,370 191,288 191,205 191,122 191,039 190,954 190,869 190,784 190,698 190,611 190,525 190,438 190,350
3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75
138.28 138.35 138.42 138.47 138.52 138.57 138.61 138.65 138.68 138.71 138.73 138.75 138.77 138.79 138.81 138.82 138.83 138.84 138.85 138.85 138.86 138.86 138.86 138.87 138.87 138.87 138.87 138.87 138.86 138.86 138.86 138.86 138.85 138.85 138.84 138.84 138.83 138.83 138.82 138.82 138.81 138.80 138.80 138.79 138.78 138.78 138.77 138.76 138.76 138.75 138.74 138.74 138.73 138.72 138.71 138.71 138.70 138.69 138.68 138.68 138.67 138.66
62,855 62,887 62,916 62,942 62,965 62,986 63,004 63,021 63,035 63,048 63,060 63,070 63,079 63,087 63,093 63,099 63,104 63,108 63,112 63,115 63,117 63,119 63,120 63,121 63,121 63,121 63,121 63,121 63,120 63,119 63,117 63,116 63,114 63,112 63,110 63,108 63,106 63,103 63,101 63,098 63,096 63,093 63,090 63,087 63,084 63,081 63,078 63,075 63,072 63,068 63,065 63,062 63,058 63,055 63,052 63,048 63,045 63,041 63,038 63,034 63,031 63,027
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #7 Colon Mine Phase 1 Hydrograph 10-Yr Storm
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: _1__of __2_
Qp = Tp =
134.71 34.59 2 1.0%
dT = Max of
or
Sediment Basin # 7
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 4.4 6.4 6.9 7.5 20 60 0
Phase 2 10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
244.40 244.90 245.50
238.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.1 0 0.0 0.00 0.00 4.4 133 0.0 0.00 0.00 9.8 661 0.0 0.00 0.00 17.0 1,832 0.1 0.00 0.00 25.9 3,873 0.1 0.00 0.00 36.2 6,984 0.2 0.00 0.00 47.5 11,329 0.3 0.00 0.00 59.5 17,029 0.4 0.38 0.38 71.7 24,074 0.6 0.38 0.38 83.7 32,584 0.7 0.38 0.38 95.3 42,544 0.9 0.38 0.38 105.9 53,887 1.1 0.38 0.38 115.2 66,504 1.4 0.38 0.38 123.0 80,242 1.6 0.38 0.38 128.9 94,912 1.9 0.38 0.38 132.9 110,296 2.1 0.38 0.38 134.6 126,148 2.4 0.38 0.38 134.2 142,211 2.7 0.38 0.38 131.5 158,220 2.9 0.38 0.38 126.7 173,909 3.2 0.38 0.38 120.0 189,026 3.4 0.38 0.38 111.9 203,337 3.6 0.38 0.38 103.8 216,669 3.9 0.38 0.38 96.2 229,028 4.0 0.38 0.38 89.3 240,487 4.2 0.38 0.38 82.8 251,109 4.4 0.38 0.38 76.8 260,955 4.5 0.38 0.38 71.2 270,081 4.7 0.38 0.38 66.1 278,541 4.8 0.38 0.38 61.3 286,381 4.9 0.38 0.38 56.9 293,646 5.0 0.38 0.38 52.7 300,379 5.1 0.38 0.38 48.9 306,618 5.2 0.38 0.38 45.4 312,399 5.3 0.38 0.38 42.1 317,754 5.4 0.38 0.38 39.0 322,715 5.5 0.38 0.38 36.2 327,310 5.5 0.38 0.38 33.6 331,566 5.6 0.38 0.38 31.2 335,507 5.7 0.38 0.38 28.9 339,156 5.7 0.38 0.38 26.8 342,534 5.8 0.38 0.38 24.9 345,661 5.8 0.38 0.38
SB 07.xlsx
Colon
WEIR FLOW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4.0E-03 2 100% 6.3 0.8 0.8 0.0
1.1 46,662
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 244.33 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
BARREL TOTAL Bound Estimated CAPACIT OUTFLOW Discharge Surface Y [cfs] [cfs] [cfs] Area (sf) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 57.30 26,047 0.00 0.00 69.64 31,653 0.00 0.00 78.83 35,832 0.00 0.00 86.35 39,249 0.00 0.00 92.77 42,166 0.00 0.00 98.39 44,721 0.38 0.75 103.39 46,993 0.38 0.75 107.83 49,014 0.38 0.75 111.87 50,852 0.38 0.75 115.56 52,528 0.38 0.75 118.93 54,060 0.38 0.75 122.01 55,461 0.38 0.75 124.83 56,742 0.38 0.75 127.41 57,913 0.38 0.75 129.76 58,980 0.38 0.75 131.89 59,952 0.38 0.75 133.83 60,832 0.38 0.75 135.58 61,626 0.38 0.75 137.15 62,339 0.38 0.75 138.54 62,974 0.38 0.75 139.78 63,535 0.38 0.75 140.86 64,028 0.38 0.75 141.81 64,461 0.38 0.75 142.66 64,845 0.38 0.75 143.41 65,187 0.38 0.75 144.08 65,492 0.38 0.75 144.69 65,767 0.38 0.75 145.23 66,014 0.38 0.75 145.72 66,237 0.38 0.75 146.17 66,439 0.38 0.75 146.57 66,623 0.38 0.75 146.94 66,789 0.38 0.75 147.27 66,941 0.38 0.75 147.58 67,080 0.38 0.75 147.85 67,206 0.38 0.75 148.11 67,322 0.38 0.75 148.34 67,428 0.38 0.75 148.55 67,525 0.38 0.75 148.75 67,614 0.38 0.75 148.93 67,695 0.38 0.75 149.09 67,770
Settling Efficiency [%] N/A N/A N/A N/A N/A N/A N/A N/A 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: _2__of __2_
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 07.xlsx
23.1 21.4 19.9 18.4 17.1 15.8 14.7 13.6 12.6 11.7 10.9 10.1 9.4 8.7 8.1 7.5 6.9 6.4 6.0 5.5 5.1 4.8 4.4 4.1 3.8 3.5 3.3 3.0 2.8 2.6 2.4 2.2 2.1 1.9 1.8 1.7 1.5 1.4 1.3 1.2 1.1 1.1 1.0 0.9 0.8 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3
348,555 351,233 353,711 356,002 358,121 360,080 361,891 363,563 365,109 366,535 367,852 369,067 370,188 371,220 372,172 373,048 373,853 374,594 375,275 375,900 376,473 376,998 377,479 377,918 378,319 378,684 379,016 379,318 379,591 379,838 380,060 380,260 380,438 380,598 380,739 380,863 380,972 381,066 381,147 381,216 381,273 381,319 381,356 381,383 381,402 381,412 381,416 381,412 381,403 381,387 381,366 381,340 381,310 381,275 381,236 381,193 381,147 381,097 381,045 380,990
5.8 5.9 5.9 6.0 6.0 6.0 6.0 6.1 6.1 6.1 6.1 6.2 6.2 6.2 6.2 6.2 6.2 6.2 6.2 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75
149.25 149.38 149.51 149.63 149.74 149.84 149.93 150.01 150.09 150.16 150.23 150.29 150.34 150.39 150.44 150.48 150.52 150.56 150.59 150.62 150.65 150.68 150.70 150.72 150.74 150.76 150.77 150.79 150.80 150.81 150.82 150.83 150.84 150.85 150.86 150.86 150.87 150.87 150.88 150.88 150.88 150.89 150.89 150.89 150.89 150.89 150.89 150.89 150.89 150.89 150.89 150.89 150.88 150.88 150.88 150.88 150.88 150.87 150.87 150.87
67,839 67,902 67,960 68,014 68,063 68,108 68,149 68,188 68,223 68,255 68,285 68,312 68,337 68,361 68,382 68,401 68,419 68,436 68,451 68,465 68,478 68,489 68,500 68,509 68,518 68,526 68,534 68,540 68,546 68,552 68,557 68,561 68,565 68,568 68,571 68,574 68,577 68,579 68,580 68,582 68,583 68,584 68,585 68,586 68,586 68,586 68,586 68,586 68,586 68,586 68,585 68,585 68,584 68,583 68,582 68,581 68,580 68,579 68,578 68,577
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0 TOTAL OUTFLOW [cfs] INFLOW [cfs]
150
3.0
STAGE [ft] 100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE (ft)
FLOW (cfs)
Sediment Basin #7 Colon Mine Phase 2 Hydrograph 10-Yr Storm
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _1__of __2_
Qp = Tp =
171.36 34.80 dT = Max of 2 or 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 4.4 6.4 6.9 7.5 20 60 0
Sediment Basin # 7
Phase 2 25 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
244.40 244.90 245.50
238.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 07.xlsx
Colon
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.4 0 0.0 0.00 0.00 5.5 167 0.0 0.00 0.00 12.3 830 0.0 0.00 0.00 21.4 2,301 0.1 0.00 0.00 32.6 4,868 0.1 0.00 0.00 45.5 8,779 0.2 0.00 0.00 59.8 14,244 0.4 0.38 0.38 74.9 21,327 0.5 0.38 0.38 90.3 30,220 0.7 0.38 0.38 105.6 40,965 0.9 0.38 0.38 120.2 53,545 1.1 0.38 0.38 133.7 67,882 1.4 0.38 0.38 145.7 83,841 1.7 0.38 0.38 155.7 101,234 2.0 0.38 0.38 163.4 119,827 2.3 0.38 0.38 168.6 139,348 2.6 0.38 0.38 171.1 159,493 2.9 0.38 0.38 170.9 179,939 3.3 0.38 0.38 167.8 200,352 3.6 0.38 0.38 162.1 220,399 3.9 0.38 0.38 153.9 239,762 4.2 0.38 0.38 143.8 258,141 4.5 0.38 0.38 133.4 275,302 4.8 0.38 0.38 123.8 291,222 5.0 0.38 0.38 114.9 305,989 5.2 0.38 0.38 106.6 319,686 5.4 0.38 0.38 99.0 332,391 5.6 0.38 0.38 91.8 344,175 5.8 0.38 0.38 85.2 355,104 5.9 0.38 0.38 79.1 365,240 6.1 0.38 0.38 73.4 374,640 6.2 0.38 0.38 68.1 383,357 6.4 0.38 0.38 63.2 391,440 6.5 0.38 1.48 58.7 398,668 6.6 0.38 4.40 54.4 404,652 6.7 0.38 7.59 50.5 409,362 6.7 0.38 10.51 46.9 412,902 6.8 0.38 12.90 43.5 415,432 6.8 0.38 14.71 40.4 417,123 6.8 0.38 15.96 37.5 418,137 6.9 0.38 16.73 34.8 418,618 6.9 0.38 17.10 32.3 418,687 6.9 0.38 17.15
4.0E-03 2 96% 6.9 34.3 34.3 0.0
1.1 46,662
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 244.9 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFL [cfs] [cfs] OW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 35.34 2.97 0.00 35.68 8.80 0.00 35.96 15.19 0.00 36.17 21.01 0.00 36.33 25.80 0.00 36.45 29.42 0.00 36.52 31.92 0.00 36.57 33.46 0.00 36.59 34.20 0.00 36.60 34.30
Bound Discharge [cfs] 0.00 0.00 58.92 71.60 81.05 88.78 95.38 101.16 106.25 110.85 115.03 118.84 122.32 125.50 128.41 131.07 133.50 135.71 137.71 139.53 141.15 142.61 143.89 145.02 146.02 146.90 147.68 148.39 149.02 149.58 150.10 150.56 150.98 151.37 151.70 151.98 152.19 152.35 152.47 152.54 152.59 152.61 152.61
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 26,780 N/A 32,544 N/A 36,841 N/A 40,355 N/A 43,355 N/A 45,983 100% 48,297 100% 50,388 100% 52,287 100% 54,018 100% 55,600 100% 57,046 100% 58,369 100% 59,578 100% 60,681 100% 61,686 100% 62,598 100% 63,421 100% 64,161 100% 64,821 100% 65,406 100% 65,920 100% 66,372 100% 66,773 100% 67,129 100% 67,448 100% 67,735 100% 67,993 100% 68,226 100% 68,437 100% 68,629 100% 68,803 100% 68,956 100% 69,081 99% 69,179 98% 69,251 98% 69,303 97% 69,337 97% 69,357 96% 69,367 96% 69,368 96% SB 25-yr HG (P2)
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _2__of __2_
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 07.xlsx
29.9 27.8 25.8 23.9 22.2 20.6 19.1 17.8 16.5 15.3 14.2 13.2 12.2 11.3 10.5 9.8 9.1 8.4 7.8 7.2 6.7 6.2 5.8 5.4 5.0 4.6 4.3 4.0 3.7 3.4 3.2 3.0 2.7 2.5 2.4 2.2 2.0 1.9 1.8 1.6 1.5 1.4 1.3 1.2 1.1 1.0 1.0 0.9 0.8 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.3
418,443 417,965 417,316 416,545 415,690 414,780 413,837 412,878 411,916 410,961 410,020 409,097 408,197 407,322 406,473 405,652 404,860 404,096 403,360 402,652 401,971 401,317 400,688 400,085 399,506 398,950 398,417 397,905 397,414 396,943 396,491 396,058 395,642 395,243 394,860 394,492 394,139 393,800 393,474 393,161 392,860 392,572 392,294 392,027 391,770 391,523 391,285 391,056 390,836 390,623 390,418 390,221 390,031 389,847 389,670 389,498 389,333 389,173 389,019 388,869 388,724
6.9 6.9 6.9 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.4 6.4 6.4 6.4 6.4 6.4
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
16.96 16.60 16.11 15.53 14.90 14.23 13.56 12.88 12.22 11.57 10.94 10.33 9.76 9.20 8.68 8.18 7.72 7.27 6.85 6.46 6.09 5.74 5.41 5.10 4.81 4.54 4.28 4.04 3.81 3.60 3.40 3.21 3.03 2.87 2.71 2.57 2.43 2.30 2.18 2.07 1.96 1.86 1.76 1.67 1.59 1.51 1.44 1.37 1.30 1.24 1.18 1.12 1.07 1.02 0.98 0.94 0.89 0.86 0.82 0.79 0.75
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
36.58 36.56 36.53 36.50 36.46 36.42 36.38 36.33 36.29 36.25 36.20 36.16 36.12 36.08 36.04 36.00 35.97 35.93 35.90 35.87 35.83 35.80 35.78 35.75 35.72 35.69 35.67 35.65 35.62 35.60 35.58 35.56 35.54 35.52 35.50 35.49 35.47 35.46 35.44 35.43 35.41 35.40 35.38 35.37 35.36 35.35 35.34 35.33 35.32 35.31 35.30 35.29 35.28 35.27 35.26 35.25 35.25 35.24 35.23 35.22 35.22
33.93 33.20 32.22 31.06 29.80 28.47 27.12 25.77 24.43 23.13 21.88 20.67 19.51 18.41 17.36 16.37 15.43 14.54 13.71 12.92 12.17 11.47 10.82 10.20 9.62 9.07 8.56 8.08 7.62 7.20 6.80 6.42 6.07 5.74 5.43 5.13 4.86 4.60 4.36 4.13 3.92 3.71 3.52 3.35 3.18 3.02 2.87 2.73 2.60 2.48 2.36 2.25 2.15 2.05 1.96 1.87 1.79 1.71 1.64 1.57 1.51
152.60 152.58 152.55 152.52 152.48 152.44 152.39 152.35 152.31 152.27 152.22 152.18 152.14 152.10 152.06 152.02 151.99 151.95 151.92 151.89 151.86 151.83 151.80 151.77 151.74 151.72 151.69 151.67 151.65 151.62 151.60 151.58 151.56 151.54 151.53 151.51 151.49 151.48 151.46 151.45 151.43 151.42 151.41 151.39 151.38 151.37 151.36 151.35 151.34 151.33 151.32 151.31 151.30 151.29 151.28 151.28 151.27 151.26 151.25 151.25 151.24
69,363 69,354 69,341 69,325 69,308 69,289 69,270 69,251 69,231 69,211 69,192 69,173 69,155 69,137 69,119 69,102 69,086 69,070 69,054 69,040 69,025 69,012 68,999 68,986 68,974 68,962 68,951 68,940 68,930 68,920 68,910 68,901 68,892 68,884 68,876 68,868 68,860 68,853 68,846 68,840 68,833 68,827 68,821 68,816 68,810 68,805 68,800 68,795 68,790 68,785 68,781 68,777 68,773 68,769 68,765 68,761 68,758 68,754 68,751 68,748 68,745
96% 96% 96% 97% 97% 97% 97% 98% 98% 98% 98% 98% 98% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 25-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
OUTFLOW INFLOW [cfs]
200
STAGE [ft]
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #7 Colon Mine Phase 2 Hydrograph 25-Yr Storm
Computed By: PAW Date: 12/31/14 Checked By: EAW
Date: 1/2/15
Sheet: __1__of __2__
Qp = Tp = dT = Max of
or
230.4 35.2 2 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 4.4 6.4 6.9 7.5 20 60 0
Sediment Basin # 7
Phase 2 100 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
244.40 244.90 245.50
238.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 07.xlsx
Colon
4.0E-03 2 83% 7.4 97.5 76.4 21.1
1.1 46,662
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 245.4 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
WEIR BARREL TOTAL Bound RISER INFLOW STORAGE STAGE Skimmer CAPACIT FLOW CAPACITY OUTFLOW Discharge [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] [cfs] [cfs] [cfs] [cfs] 0.0 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 1.8 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 7.3 220 0.0 0.00 0.00 0.00 0.00 0.00 60.91 16.1 1,091 0.0 0.00 0.00 0.00 0.00 0.00 74.02 28.1 3,027 0.1 0.00 0.00 0.00 0.00 0.00 83.80 42.9 6,403 0.2 0.00 0.00 0.00 0.00 0.00 91.79 60.0 11,554 0.3 0.00 0.00 0.00 0.00 0.00 98.62 78.8 18,753 0.4 0.38 0.38 0.00 0.38 0.75 104.60 98.8 28,121 0.6 0.38 0.38 0.00 0.38 0.75 109.89 119.3 39,888 0.9 0.38 0.38 0.00 0.38 0.75 114.66 139.7 54,116 1.1 0.38 0.38 0.00 0.38 0.75 118.99 159.3 70,788 1.4 0.38 0.38 0.00 0.38 0.75 122.94 177.5 89,813 1.8 0.38 0.38 0.00 0.38 0.75 126.56 193.7 111,021 2.1 0.38 0.38 0.00 0.38 0.75 129.86 207.4 134,175 2.5 0.38 0.38 0.00 0.38 0.75 132.89 218.2 158,976 2.9 0.38 0.38 0.00 0.38 0.75 135.66 225.7 185,072 3.4 0.38 0.38 0.00 0.38 0.75 138.19 229.7 212,070 3.8 0.38 0.38 0.00 0.38 0.75 140.49 230.1 239,548 4.2 0.38 0.38 0.00 0.38 0.75 142.59 226.8 267,070 4.6 0.38 0.38 0.00 0.38 0.75 144.49 220.0 294,198 5.0 0.38 0.38 0.00 0.38 0.75 146.20 209.8 320,505 5.4 0.38 0.38 0.00 0.38 0.75 147.73 196.9 345,593 5.8 0.38 0.38 0.00 0.38 0.75 149.09 182.9 369,129 6.2 0.38 0.38 0.00 0.38 0.75 150.29 169.8 390,983 6.5 0.38 1.34 0.00 35.32 2.69 151.35 157.8 411,042 6.8 0.38 11.62 0.00 36.25 23.24 152.27 146.5 427,183 7.0 0.38 24.09 1.72 36.97 49.90 152.98 136.1 438,778 7.2 0.38 34.73 7.96 37.48 77.42 153.48 126.4 445,818 7.3 0.38 41.79 13.01 37.79 88.59 153.78 117.4 450,355 7.3 0.38 46.55 16.67 37.99 92.64 153.97 109.0 453,325 7.4 0.38 49.76 19.23 38.11 95.45 154.09 101.3 454,956 7.4 0.38 51.56 20.68 38.18 97.04 154.16 94.1 455,464 7.4 0.38 52.12 21.14 38.20 97.54 154.18 87.4 455,047 7.4 0.38 51.66 20.76 38.19 97.13 154.16 81.1 453,875 7.4 0.38 50.37 19.71 38.14 95.98 154.12 75.4 452,095 7.4 0.38 48.43 18.15 38.06 94.27 154.04 70.0 449,826 7.3 0.38 45.99 16.23 37.96 92.16 153.95 65.0 447,168 7.3 0.38 43.19 14.07 37.85 89.77 153.84 60.4 444,198 7.2 0.38 40.13 11.78 37.72 87.22 153.71 56.1 440,978 7.2 0.38 36.89 9.45 37.58 83.23 153.58 52.1 437,721 7.1 0.38 33.71 7.28 37.44 74.69 153.44 48.4 435,009 7.1 0.38 31.13 5.61 37.32 67.88 153.32 44.9 432,669 7.1 0.38 28.97 4.30 37.22 62.23 153.22
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 27,686 N/A 33,645 N/A 38,089 N/A 41,723 N/A 44,828 N/A 47,547 100% 49,949 100% 52,118 100% 54,088 100% 55,884 100% 57,525 100% 59,027 100% 60,403 100% 61,662 100% 62,812 100% 63,861 100% 64,814 100% 65,677 100% 66,454 100% 67,150 100% 67,769 100% 68,314 100% 68,793 100% 69,213 98% 69,538 93% 69,765 87% 69,900 85% 69,986 84% 70,042 84% 70,073 83% 70,082 83% 70,074 83% 70,052 84% 70,019 84% 69,976 84% 69,926 85% 69,869 85% 69,807 86% 69,744 88% 69,692 89% 69,646 91% SB 100-yr HG (P2)
Computed By: PAW Date: 12/31/14 Checked By: EAW
Date: 1/2/15
Sheet: __2__of __2__
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 07.xlsx
41.7 38.8 36.0 33.4 31.1 28.9 26.8 24.9 23.1 21.5 19.9 18.5 17.2 16.0 14.8 13.8 12.8 11.9 11.0 10.3 9.5 8.8 8.2 7.6 7.1 6.6 6.1 5.7 5.3 4.9 4.6 4.2 3.9 3.6 3.4 3.1 2.9 2.7 2.5 2.3 2.2 2.0 1.9 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 1.0 0.9 0.8 0.8 0.7 0.7 0.6 0.6 0.5
430,594 428,714 426,982 425,366 423,843 422,396 421,010 419,670 418,357 417,076 415,829 414,622 413,456 412,331 411,247 410,206 409,205 408,244 407,322 406,438 405,591 404,779 404,000 403,254 402,540 401,855 401,200 400,572 399,970 399,393 398,841 398,311 397,803 397,317 396,851 396,403 395,974 395,563 395,168 394,789 394,426 394,077 393,742 393,420 393,111 392,814 392,528 392,253 391,989 391,735 391,491 391,255 391,029 390,810 390,600 390,397 390,202 390,013 389,831 389,655
7.0 7.0 7.0 7.0 6.9 6.9 6.9 6.9 6.9 6.8 6.8 6.8 6.8 6.8 6.8 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
27.09 25.42 23.92 22.54 21.27 20.08 18.97 17.91 16.90 15.93 15.00 14.12 13.29 12.50 11.76 11.06 10.40 9.79 9.21 8.66 8.15 7.67 7.22 6.79 6.40 6.02 5.68 5.35 5.04 4.75 4.48 4.23 3.99 3.77 3.56 3.36 3.18 3.00 2.84 2.69 2.54 2.41 2.28 2.16 2.05 1.94 1.84 1.75 1.66 1.58 1.50 1.43 1.36 1.29 1.23 1.17 1.12 1.07 1.02 0.97
3.23 2.36 1.64 1.05 0.58 0.23 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
37.13 37.04 36.97 36.89 36.83 36.76 36.70 36.64 36.58 36.52 36.47 36.41 36.36 36.31 36.26 36.21 36.17 36.12 36.08 36.04 36.00 35.96 35.93 35.89 35.86 35.83 35.80 35.77 35.74 35.72 35.69 35.67 35.64 35.62 35.60 35.58 35.56 35.54 35.52 35.50 35.48 35.47 35.45 35.44 35.42 35.41 35.40 35.38 35.37 35.36 35.35 35.34 35.33 35.32 35.31 35.30 35.29 35.28 35.27 35.26
57.41 53.20 49.47 46.13 43.12 40.40 37.96 35.83 33.80 31.85 30.00 28.24 26.58 25.00 23.52 22.12 20.81 19.57 18.41 17.32 16.30 15.33 14.43 13.59 12.79 12.05 11.35 10.70 10.08 9.51 8.96 8.46 7.98 7.53 7.11 6.72 6.35 6.00 5.68 5.37 5.08 4.81 4.56 4.32 4.09 3.88 3.68 3.50 3.32 3.16 3.00 2.85 2.72 2.59 2.46 2.35 2.24 2.14 2.04 1.95
153.13 153.05 152.97 152.90 152.84 152.77 152.71 152.65 152.60 152.54 152.48 152.43 152.38 152.33 152.28 152.23 152.19 152.14 152.10 152.06 152.02 151.98 151.95 151.91 151.88 151.85 151.82 151.79 151.76 151.74 151.71 151.69 151.66 151.64 151.62 151.60 151.58 151.56 151.54 151.52 151.51 151.49 151.47 151.46 151.44 151.43 151.42 151.40 151.39 151.38 151.37 151.36 151.35 151.34 151.33 151.32 151.31 151.30 151.29 151.28
69,605 69,568 69,534 69,502 69,472 69,443 69,415 69,388 69,362 69,336 69,311 69,286 69,262 69,239 69,217 69,196 69,175 69,156 69,137 69,118 69,101 69,084 69,068 69,052 69,037 69,023 69,009 68,996 68,984 68,971 68,960 68,949 68,938 68,928 68,918 68,908 68,899 68,891 68,882 68,874 68,867 68,859 68,852 68,845 68,839 68,832 68,826 68,820 68,815 68,809 68,804 68,799 68,794 68,790 68,785 68,781 68,776 68,772 68,769 68,765
92% 92% 93% 94% 94% 95% 95% 96% 96% 97% 97% 97% 97% 98% 98% 98% 98% 98% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 100-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
OUTFLOW 250
INFLOW [cfs]
5.0
STAGE [ft] 200
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #7 Colon Mine Phase 2 Hydrograph 100-Yr Storm
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #8
Sheet: 1
Of: 4
Objective
Design the temporary sediment basin to contain the 25-year storm.
References 1. NC Erosion and Sediment Control Planning and Design Manual. 2. "Elements of Urban Stormwater Design" by H. Rooney Malcom, P.E. 3. NOAA Atlas 14, Volume 2, Version 3 4. VA Erosion and Sediment Control Handbook Given Phase Storm Event (yrs) = Total Drainage Area A (ac) = Disturbed Area (ac) = Curve Number CN = Rainfall Depth P (in) = Peak Flow Qp (cfs) =
1 10 11.8 11.8 86 5.28 71.25
1 25 11.8 11.8 86 6.28 88.20
Hydrographs (24-hr rainfall) Hydrographs
Ref 3
Design Criteria Required sediment storage Required sediment storage
1,800 21,240
cf / acre of drainage cf
Required Surface Area Required Surface Area (SF)
435 38,367
sf/cfs of the 10-yr storm peak flow (based on the largest Phase in cfs) of the 10-yr storm peak flow (based on the largest Phase)
Determine Shape of Basin: Measure the area of the Basin using AutoCADD. Calculate Volume of the Basin using Truncated Pyramid Method. Shape factor used in hydrographs basin depth may be gretaer than indicated below
Elevation (ft) 273 274 275 276 277 278 279
Depth (ft) 0 1 2 3 4 5 6
Area (sf) 5,639 18,291 28,277 38,333 47,710 59,010 69,292
Volume (cf) 11,362 23,103 33,178 42,936 53,260 64,082
Design Sediment Depth (ft) = 3 Sediment Storage (cf) = 67,643 Design Surface Area Depth (ft) = 3 Surface Area (sf) = 38,333
Cumulative Vol (cf) 11,362 34,465 67,643 110,579 163,839 227,922
Cumulative Vol (cy) 421 1,276 2,505 4,096 6,068 8,442
Required Sediment Storage Achieved
Increase Surface Area
SB Dims SB 08
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #8
Sheet: 2
Of: 4
Select Skimmer A. R. Jarrett Method D = [Q / (2,310 * (H 0.5)]0.5 D =Diameter of Orifice (inches) Q = Dewater Rate (cf/day) H = Head on orifice, varies based on skimmer size (ft) Skimmer Sizes (Inches) 1.5 2 2.5 3 4 5 6 8
Head (ft) 0.125 0.167 0.167 0.250 0.333 0.333 0.417 0.500
Volume to Dewater (cf) = Number of Skimmers Days to Drain = Q each (cf/day) =
67,643 1 5 13,529
Selected Skimmer Size (inches) = Head on Skimmer (feet) = Diameter of Orifice (inches) =
4 0.333 3.2
assumed 0.16 cfs
Route the flow through the Basin Riser is not perforated, but skimmer is attached. S = (1000/CN) - 10 2 Runoff Depth Q* (inches) = (P-0.2S) /(P+0.8S) TP (min) = 60.5(Q*)A/QP/1.39
Phase Storm Event (yrs) = S= Runoff Depth Q* (inches) = Time to Peak T p (min) =
1 10 1.63 3.73 26.88
1 25 1.63 4.68 27.23
Determine Pond Storage Elevation (Z Water): Pick one point near max expected water surface and the other at the mid depth. Z1 (ft) = 3 S1 (cf)= 67,643 Z2 (ft) = 5 S2 (cf) = 163,839 b = ln(S2/S1)/ln(Z2/Z1) = 1.7 b
KS = S2/Z2 =
Ref 2, III-4
Ref 2, III-8
10,091
SB Dims SB 08
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #8
Sheet: 3
Of: 4
Determine Settling Velocity Conversion Factor =
3.281 ft/sec per m/sec
2
Gravitational Acceleration, g (m/s ) = Specific Gravity of soil (ss)=
9.81 2.6 2 o 1.14E-06m / sec @ 20 C 40.00E-06 m
Kinematic Viscosity of water (v) = Diameter of the Design Particle d 15 = Design Particle Settling Velocity
=
( g / 18 ) * [ ( s s
Route the Storm through the Basin using the Hydrograph Model Set Height of Emergency Spillway at (ft) = 5.30 Set Top of Dam at (ft) = 6.00
Ref 2, IV-11
- 1 ) / v ] d2 =
4.02E-03
ft/sec
See Hydrograph
Anti-Seep Collar: Anti-Seep Collar Size = 2 * Barrel Dia Anti-Seep Collar Size (ft) = 2 Use Anti-Seep Collar Size (ft) = 2 Minimum Concrete Base for Riser: Diameter of Riser (in) = 18 Avg Density of Concrete (lbs/cf) = Density of Water (lbs/cf) = Riser Displacement (cf) = 7.95 Convert cf to cy = Min Concrete Needed (cy) = Width & Length (ft) = Thickness (ft) = Anti-Vortex Device: Diameter of Riser (in) = Cylinder Diameter (in) = Cylinder Thickness (gage) = Cylinder Height (in) =
x2
From Hydrograph 87.6 62.4 Pi * (DR/24)2 * Total Ht of Riser
27-1 0.21 2.5 0.9
18 27 16 8
From Hydrograph Ref 4, III-104, Table 3.14-D
SB Dims SB 08
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #8
Sheet: 4
Of: 4
Determine Tailwater conditions to size outlet apron Use Normal Depth Procedure (Manning's Eqn.) A*R2/3 = Q*n/1.49 s0.5
Area (A)= bd+z(d^2)
Z req = Q*n/1.49s0.5
R=Area/(b+2d((z^2)+1)^.5)
n= Vp (ft/sec) = Side Slope (z) = s (ft/ft) = Bottom Width (ft) = QB (cfs) =
Q (cfs) 2.6
Zreq 0.86
0.069 9 5 0.02 6 2.6 Flow Depth d (ft) 0.29
Ref 2, II-7
Zav = A*R2/3
6-inch diameter Rip Rap, Lined Channel Permissible Velocity for lining enter X for X:1 Outlet Slope (estimated) 6 * Barrel Diameter Peak Flow out of the barrel 10-yr Hydrograph
A (sf) 2.2
R (ft) 0.24
Zav 0.86
Flow Depth = Tailwater, d (ft) = 0.29 0.5* Barrel Diameter (ft) = 0.50 Minimum Tailwater Conditions: d0.5*Diameter of Outlet Pipe Since the Tailwater is less than half of the diameter of the outlet, use Minimum Tailwater conditions. Barrel Diameter (ft) 1
Entrance (ft) 3
Length (ft) 8
Outlet Width (ft) 9
Median Rip Rap Size d50 0.3
V (ft/sec) 1.2 Ref 1, 8.06.3
Selected Rip Rap Size (in) Class A
Conclusion The temporary basin can contain the 25-yr storm.
SB Dims SB 08
I Job No. 0453925-237673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow
Diameter of Riser (in) = Circumference of Riser (in) = Height of Riser from bottom of barrel (in) = Vertical spacing between holes (in) = Water Stage increment (ft)
18 56.5 54 0 0.05
l
Computed: PAW Date: 3/4/15 Checked: MDP Date: 3/6/15 Sheet: 1 Of: 2
From Hydrograph center to center
Orifice Equation Q = Cd * A * (2 * g * h)0.5 Q = cfs, discharge Cd = 0.6 coefficient of discharge A = sf, cross sectional area
Ref 1, p III-11
ft/sec2, gravity g = 32.2 h = ft, driving head measured from the center of the pipe
Row 1 Holes per row 0 Hole Diameter (in) 0.75 Spacing edge to edge (in) #DIV/0! Inlet Area (sf) 0.000 Hole Stage (in) 0.50 Hole Stage (ft) 0.04
2 0 0.75 #DIV/0! 0.000 0.50 0.04
Perforations 3 4 0 0 0.75 0.75 #DIV/0! #DIV/0! 0.000 0.000 0.50 0.50 0.04 0.04
5 0 0.75 #DIV/0! 0.000 0.50 0.04
Skimmer 1
# of skimmers
Water Stage (ft) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Total Flow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.00 0.00 0.29 0.00 0.00 0.00 0.00 0.00 0.34 0.00 0.00 0.00 0.16 0.16 0.39 0.00 0.00 0.00 0.16 0.16 0.44 0.00 0.00 0.00 0.16 0.16 0.49 0.00 0.00 0.00 0.16 0.16 0.54 0.00 0.00 0.00 0.16 0.16 0.59 0.00 0.00 0.00 0.16 0.16 0.64 0.00 0.00 0.00 0.16 0.16 0.69 0.00 0.00 0.00 0.16 0.16 0.74 0.00 0.00 0.00 0.16 0.16 0.79 0.00 0.00 0.00 0.16 0.16 0.84 0.00 0.00 0.00 0.16 0.16 0.89 0.00 0.00 0.00 0.16 0.16 0.94 0.00 0.00 0.00 0.16 0.16 0.99 0.00 0.00 0.00 0.16 0.16 1.04 0.00 0.00 0.00 0.16 0.16 1.09 0.00 0.00 0.00 0.16 0.16 1.14 0.00 0.00 0.00 0.16 0.16 1.19 0.00 0.00 0.00 0.16 0.16 1.24 0.00 0.00 0.00 0.16 0.16 1.29 0.00 0.00 0.00 0.16 0.16 1.34 0.00 0.00 0.00 0.16 0.16 1.39 0.00 0.00 0.00 0.16 0.16 1.44 0.00 0.00 0.00 0.16 0.16 1.49 0.00 0.00 0.00 0.16 0.16 1.54 0.00 0.00 0.00 0.16 0.16 1.59 0.00 0.00 0.00 0.16 0.16 SB 08
Pipe Perf-Skimmer
I Job No. 0453925-237673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow 1.64 1.69 1.74 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.59 2.64 2.69 2.74 2.79 2.84 2.89 2.94 2.99 3.04 3.09 3.14 3.19 3.24 3.29 3.34 3.39 3.44 3.49 3.54 3.59 3.64 3.69 3.74 3.79 3.84 3.89 3.94 3.99
SB 08
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
l
Computed: PAW Date: 3/4/15 Checked: MDP Date: 3/6/15 Sheet: 2 Of: 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16
0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16
Pipe Perf-Skimmer
Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: _1__of _2__
Sediment Basin #
Qp =
71.25
cfs
Tp =
26.88
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
SB 08
Colon
1 12 3.5 4.5 5.3 6.0 10 18 0
10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
277.50 278.30 279.00
273.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
8
Phase 1
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.0 0 0.0 0.00 0.00 3.8 116 0.1 0.00 0.00 8.4 575 0.2 0.00 0.00 14.5 1,584 0.3 0.16 0.16 21.7 3,301 0.5 0.16 0.16 29.7 5,884 0.7 0.16 0.16 38.0 9,424 1.0 0.16 0.16 46.1 13,960 1.2 0.16 0.16 53.7 19,476 1.5 0.16 0.16 60.3 25,904 1.7 0.16 0.16 65.6 33,126 2.0 0.16 0.16 69.2 40,980 2.2 0.16 0.16 71.1 49,271 2.5 0.16 0.16 70.9 57,780 2.7 0.16 0.16 68.9 66,274 3.0 0.16 0.16 65.1 74,525 3.2 0.16 0.16 59.7 82,313 3.4 0.16 0.16 54.2 89,462 3.5 0.16 0.16 49.2 95,950 3.7 0.16 0.16 44.7 101,837 3.8 0.16 0.16 40.6 107,181 3.9 0.16 0.16 36.8 112,029 4.0 0.16 0.16 33.4 116,430 4.1 0.16 0.16 30.3 120,422 4.2 0.16 0.16 27.5 124,045 4.3 0.16 0.16 25.0 127,333 4.3 0.16 0.16 22.7 130,315 4.4 0.16 0.16 20.6 133,021 4.4 0.16 0.16 18.7 135,475 4.5 0.16 0.16 17.0 137,702 4.5 0.16 0.21 15.4 139,715 4.6 0.16 0.39 14.0 141,519 4.6 0.16 0.61 12.7 143,125 4.6 0.16 0.84 11.5 144,549 4.7 0.16 1.07 10.5 145,805 4.7 0.16 1.29 9.5 146,907 4.7 0.16 1.49 8.6 147,869 4.7 0.16 1.68 7.8 148,703 4.7 0.16 1.85 7.1 149,422 4.7 0.16 2.00 6.5 150,036 4.8 0.16 2.13 5.9 150,555 4.8 0.16 2.24
4.0E-03 2 100% 4.8 2.6 2.6 0.0
1.7 10,091
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 277.79 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 7.57 0.21 0.00 7.61 0.39 0.00 7.64 0.61 0.00 7.67 0.84 0.00 7.69 1.07 0.00 7.71 1.29 0.00 7.73 1.49 0.00 7.75 1.68 0.00 7.76 1.85 0.00 7.78 2.00 0.00 7.79 2.13 0.00 7.79 2.24
Bound Discharge [cfs] 0.00 0.00 5.83 11.46 17.58 23.98 30.61 37.35 44.10 50.76 57.26 63.53 69.51 75.14 80.37 85.17 89.50 93.33 96.68 99.58 102.12 104.35 106.32 108.06 109.61 110.99 112.23 113.33 114.32 115.21 116.00 116.72 117.35 117.91 118.41 118.84 119.22 119.55 119.83 120.08 120.29 120.46
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 2,650 N/A 5,208 N/A 7,991 100% 10,899 100% 13,914 100% 16,978 100% 20,045 100% 23,073 100% 26,028 100% 28,879 100% 31,595 100% 34,154 100% 36,532 100% 38,712 100% 40,680 100% 42,425 100% 43,944 100% 45,264 100% 46,417 100% 47,431 100% 48,326 100% 49,119 100% 49,824 100% 50,452 100% 51,013 100% 51,514 100% 51,964 100% 52,367 100% 52,729 100% 53,053 100% 53,341 100% 53,597 100% 53,821 100% 54,018 100% 54,190 100% 54,340 100% 54,469 100% 54,580 100% 54,675 100% 54,755 100% SB 10-yr (P1) HG
Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: _2__of _2__
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 08
5.3 4.8 4.4 4.0 3.6 3.3 3.0 2.7 2.5 2.2 2.0 1.8 1.7 1.5 1.4 1.2 1.1 1.0 0.9 0.8 0.8 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
150,990 151,348 151,638 151,867 152,041 152,166 152,248 152,292 152,301 152,280 152,232 152,161 152,070 151,961 151,836 151,698 151,549 151,389 151,222 151,048 150,868 150,683 150,495 150,304 150,111 149,916 149,721 149,525 149,330 149,135 148,942 148,749 148,558 148,369 148,182 147,996 147,813 147,633 147,455 147,279 147,106 146,935 146,768 146,603 146,440 146,281 146,124 145,970 145,818 145,669 145,523 145,380 145,239 145,100 144,964 144,831 144,700 144,571 144,445 144,321 144,199 144,080
4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.6 4.6 4.6 4.6
0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16
2.33 2.41 2.48 2.53 2.57 2.60 2.62 2.63 2.63 2.62 2.61 2.60 2.58 2.55 2.52 2.49 2.46 2.42 2.39 2.35 2.31 2.27 2.23 2.18 2.14 2.10 2.06 2.02 1.98 1.94 1.90 1.86 1.82 1.78 1.74 1.71 1.67 1.63 1.60 1.56 1.53 1.50 1.47 1.44 1.41 1.38 1.35 1.32 1.29 1.26 1.24 1.21 1.19 1.16 1.14 1.12 1.10 1.07 1.05 1.03 1.01 0.99
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
7.80 7.81 7.81 7.82 7.82 7.82 7.82 7.82 7.82 7.82 7.82 7.82 7.82 7.82 7.82 7.81 7.81 7.81 7.81 7.80 7.80 7.80 7.79 7.79 7.79 7.78 7.78 7.78 7.77 7.77 7.77 7.76 7.76 7.76 7.75 7.75 7.75 7.75 7.74 7.74 7.74 7.73 7.73 7.73 7.73 7.72 7.72 7.72 7.71 7.71 7.71 7.71 7.70 7.70 7.70 7.70 7.70 7.69 7.69 7.69 7.69 7.68
2.33 2.41 2.48 2.53 2.57 2.60 2.62 2.63 2.63 2.62 2.61 2.60 2.58 2.55 2.52 2.49 2.46 2.42 2.39 2.35 2.31 2.27 2.23 2.18 2.14 2.10 2.06 2.02 1.98 1.94 1.90 1.86 1.82 1.78 1.74 1.71 1.67 1.63 1.60 1.56 1.53 1.50 1.47 1.44 1.41 1.38 1.35 1.32 1.29 1.26 1.24 1.21 1.19 1.16 1.14 1.12 1.10 1.07 1.05 1.03 1.01 0.99
120.61 120.73 120.83 120.90 120.96 121.00 121.03 121.05 121.05 121.04 121.03 121.00 120.97 120.93 120.89 120.85 120.80 120.74 120.69 120.63 120.57 120.50 120.44 120.38 120.31 120.24 120.18 120.11 120.05 119.98 119.91 119.85 119.78 119.72 119.65 119.59 119.53 119.47 119.41 119.35 119.29 119.23 119.17 119.11 119.06 119.00 118.95 118.90 118.84 118.79 118.74 118.69 118.64 118.60 118.55 118.50 118.46 118.41 118.37 118.33 118.29 118.24
54,822 54,877 54,921 54,956 54,983 55,002 55,014 55,021 55,022 55,019 55,012 55,001 54,987 54,970 54,951 54,930 54,907 54,883 54,857 54,831 54,803 54,775 54,746 54,716 54,687 54,657 54,627 54,596 54,566 54,536 54,506 54,477 54,447 54,418 54,389 54,360 54,331 54,303 54,276 54,248 54,221 54,195 54,169 54,143 54,118 54,093 54,068 54,044 54,020 53,997 53,974 53,952 53,930 53,908 53,886 53,865 53,845 53,825 53,805 53,785 53,766 53,747
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #8 Colon Mine Phase 1 Hydrograph 10-Yr Storm
This page intentionally left blank.
Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: _1__of _2__
Sediment Basin #
Qp =
88.20
cfs
Tp =
27.23
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
SB 08
Colon
1 12 3.5 4.5 5.3 6.0 10 18 0
25 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
277.50 278.30 279.00
273.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
8
Phase 1
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.2 0 0.0 0.00 0.00 4.6 140 0.1 0.00 0.00 10.2 694 0.2 0.00 0.00 17.5 1,912 0.4 0.16 0.16 26.2 3,992 0.6 0.16 0.16 35.9 7,122 0.8 0.16 0.16 46.1 11,415 1.1 0.16 0.16 56.1 16,923 1.3 0.16 0.16 65.5 23,635 1.6 0.16 0.16 73.7 31,473 1.9 0.16 0.16 80.4 40,302 2.2 0.16 0.16 85.2 49,933 2.5 0.16 0.16 87.8 60,135 2.8 0.16 0.16 88.0 70,647 3.1 0.16 0.16 86.0 81,191 3.3 0.16 0.16 81.7 91,488 3.6 0.16 0.16 75.4 101,272 3.8 0.16 0.16 68.6 110,303 4.0 0.16 0.16 62.4 118,519 4.1 0.16 0.16 56.7 125,986 4.3 0.16 0.16 51.5 132,771 4.4 0.16 0.16 46.8 138,937 4.5 0.16 0.31 42.6 144,520 4.7 0.16 1.07 38.7 149,502 4.7 0.16 2.01 35.2 153,904 4.8 0.16 3.01 32.0 157,764 4.9 0.16 3.97 29.1 161,124 5.0 0.16 4.88 26.4 164,025 5.0 0.16 5.71 24.0 166,509 5.0 0.16 6.45 21.8 168,617 5.1 0.16 7.09 19.8 170,384 5.1 0.16 7.65 18.0 171,847 5.1 0.16 8.11 16.4 173,037 5.2 0.16 8.50 14.9 174,025 5.2 0.16 8.82 13.5 174,832 5.2 0.16 9.09 12.3 175,476 5.2 0.16 9.30 11.2 175,970 5.2 0.16 9.47 10.2 176,328 5.2 0.16 9.59 9.2 176,564 5.2 0.16 9.67 8.4 176,688 5.2 0.16 9.71 7.6 176,712 5.2 0.16 9.72
4.0E-03 2 100% 5.2 8.2 8.2 0.0
1.7 10,091
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 278.22 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 7.59 0.31 0.00 7.69 1.07 0.00 7.78 2.01 0.00 7.85 3.01 0.00 7.91 3.97 0.00 7.97 4.88 0.00 8.01 5.71 0.00 8.05 6.45 0.00 8.08 7.09 0.00 8.11 7.65 0.00 8.13 8.11 0.00 8.15 8.15 0.00 8.17 8.17 0.00 8.18 8.18 0.00 8.19 8.19 0.00 8.19 8.19 0.00 8.20 8.20 0.00 8.20 8.20 0.00 8.21 8.21 0.00 8.21 8.21
Bound Discharge [cfs] 0.00 0.00 6.31 12.40 19.04 25.98 33.18 40.50 47.84 55.09 62.17 69.02 75.56 81.74 87.50 92.79 97.60 101.88 105.62 108.88 111.73 114.23 116.44 118.40 120.10 121.59 122.87 123.96 124.90 125.70 126.37 126.93 127.39 127.76 128.07 128.32 128.52 128.67 128.78 128.85 128.89 128.90
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 2,869 N/A 5,638 N/A 8,653 100% 11,810 100% 15,083 100% 18,410 100% 21,743 100% 25,039 100% 28,261 100% 31,373 100% 34,347 100% 37,154 100% 39,771 100% 42,179 100% 44,362 100% 46,308 100% 48,010 100% 49,490 100% 50,784 100% 51,923 100% 52,928 100% 53,817 100% 54,593 100% 55,266 100% 55,848 100% 56,347 100% 56,774 100% 57,136 100% 57,440 100% 57,694 100% 57,903 100% 58,072 100% 58,212 100% 58,326 100% 58,416 100% 58,486 100% 58,536 100% 58,569 100% 58,586 100% 58,590 100% SB 25-yr (P1) HG
Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: _2__of _2__
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 08
6.9 6.3 5.7 5.2 4.7 4.3 3.9 3.6 3.2 2.9 2.7 2.4 2.2 2.0 1.8 1.7 1.5 1.4 1.2 1.1 1.0 0.9 0.8 0.8 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
176,643 176,491 176,263 175,967 175,609 175,195 174,729 174,218 173,664 173,073 172,447 171,791 171,110 170,430 169,751 169,077 168,407 167,745 167,090 166,445 165,810 165,185 164,571 163,968 163,378 162,800 162,234 161,680 161,139 160,610 160,093 159,589 159,097 158,617 158,148 157,692 157,247 156,813 156,389 155,977 155,575 155,184 154,802 154,431 154,068 153,715 153,371 153,036 152,709 152,391 152,081 151,778 151,483 151,196 150,916 150,642 150,376 150,116 149,862 149,614 149,373 149,137
5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 4.9 4.9 4.9 4.9 4.9 4.9 4.9 4.9 4.9 4.9 4.9 4.9 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.7 4.7 4.7 4.7
0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16
9.70 9.65 9.57 9.47 9.35 9.21 9.06 8.89 8.70 8.51 8.31 8.09 7.88 7.66 7.45 7.23 7.03 6.82 6.62 6.43 6.24 6.05 5.87 5.69 5.52 5.35 5.19 5.04 4.89 4.74 4.60 4.46 4.33 4.20 4.08 3.96 3.84 3.73 3.62 3.52 3.42 3.32 3.22 3.13 3.05 2.96 2.88 2.80 2.72 2.65 2.58 2.51 2.44 2.38 2.32 2.26 2.20 2.14 2.09 2.04 1.99 1.94
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
8.20 8.20 8.20 8.19 8.19 8.18 8.18 8.17 8.16 8.15 8.14 8.13 8.12 8.11 8.10 8.09 8.08 8.07 8.06 8.05 8.04 8.03 8.02 8.01 8.00 7.99 7.98 7.98 7.97 7.96 7.95 7.94 7.93 7.93 7.92 7.91 7.90 7.90 7.89 7.88 7.88 7.87 7.86 7.86 7.85 7.85 7.84 7.84 7.83 7.83 7.82 7.81 7.81 7.81 7.80 7.80 7.79 7.79 7.78 7.78 7.77 7.77
8.20 8.20 8.20 8.19 8.19 8.18 8.18 8.17 8.16 8.15 8.14 8.09 7.88 7.66 7.45 7.23 7.03 6.82 6.62 6.43 6.24 6.05 5.87 5.69 5.52 5.35 5.19 5.04 4.89 4.74 4.60 4.46 4.33 4.20 4.08 3.96 3.84 3.73 3.62 3.52 3.42 3.32 3.22 3.13 3.05 2.96 2.88 2.80 2.72 2.65 2.58 2.51 2.44 2.38 2.32 2.26 2.20 2.14 2.09 2.04 1.99 1.94
128.88 128.83 128.76 128.67 128.56 128.43 128.28 128.13 127.95 127.77 127.57 127.37 127.15 126.94 126.73 126.51 126.30 126.09 125.88 125.68 125.48 125.28 125.08 124.88 124.69 124.51 124.32 124.15 123.97 123.80 123.63 123.46 123.30 123.15 122.99 122.84 122.70 122.55 122.41 122.28 122.14 122.01 121.89 121.76 121.64 121.52 121.41 121.30 121.19 121.08 120.98 120.87 120.77 120.68 120.58 120.49 120.40 120.31 120.23 120.14 120.06 119.98
58,580 58,559 58,527 58,485 58,435 58,377 58,311 58,239 58,161 58,077 57,988 57,895 57,798 57,700 57,603 57,506 57,410 57,315 57,220 57,126 57,034 56,943 56,854 56,766 56,679 56,594 56,511 56,430 56,350 56,271 56,195 56,120 56,047 55,975 55,905 55,837 55,770 55,705 55,642 55,580 55,519 55,460 55,403 55,346 55,291 55,238 55,186 55,135 55,085 55,036 54,989 54,943 54,897 54,853 54,810 54,768 54,727 54,687 54,648 54,610 54,573 54,537
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 25-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #8 Colon Mine Phase 1 Hydrograph 25-Yr Storm
This page intentionally left blank.
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/5/15 Date: 3/6/15
Task:
Sediment Basin #9
Sheet: 1
Of:
Objective
Design the sediment basin to contain the 25-year storm and pass the 100-year storm without over topping the berm.
4
References 1. NC Erosion and Sediment Control Planning and Design Manual. 2. "Elements of Urban Stormwater Design" by H. Rooney Malcom, P.E. 3. NOAA Atlas 14, Volume 2, Version 3 4. VA Erosion and Sediment Control Handbook Given Phase Storm Event (yrs) = Total Drainage Area A (ac) = Disturbed Area (ac) = Curve Number CN = Rainfall Depth P (in) = Peak Flow Qp (cfs) =
1 10 62.8 46.7 72 5.28 145.70
2 10 85.9 65.9 72 5.28 199.50
2 25 85.9 65.9 72 6.28 268.73
2 100 85.9 65.9 72 7.88 384.06
Hydrographs (24-hr rainfall) Hydrographs
Ref 3
Design Criteria Required sediment storage Required sediment storage
1,800 154,620
cf / acre of drainage cf (based on largest Phase)
Required Surface Area Required Surface Area (SF)
435 86,783
sf/cfs of the 10-yr storm peak flow (based on the largest Phase in cfs) of the 10-yr storm peak flow (based on the largest Phase)
Determine Shape of Basin: Measure the area of the Basin using AutoCADD. Calculate Volume of the Basin using Truncated Pyramid Method. Shape factor used in hydrographs basin depth may be gretaer than indicated below
Elevation (ft) 262 263 264 265 266 267 268
Depth (ft) 0 1 2 3 4 5 6
Area (sf) 88,670 92,409 96,226 100,091 103,992 107,938 111,933
Volume (cf) 0 90,533 94,311 98,152 102,035 105,959 109,929
Design Sediment Depth (ft) = 3 Sediment Storage (cf) = 282,996 Design Surface Area Depth (ft) = 3 Surface Area (sf) = 100,091
Cumulative Vol (cf) 0 90,533 184,844 282,996 385,032 490,990 600,920
Cumulative Vol (cy) 0 3,353 6,846 10,481 14,260 18,185 22,256
Required Sediment Storage Achieved
Required Surface Area Achieved
SB Dims SB 09
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/5/15 Date: 3/6/15
Task:
Sediment Basin #9
Sheet: 2
Of:
4
Select Skimmer A. R. Jarrett Method D = [Q / (2,310 * (H0.5)]0.5 D =Diameter of Orifice (inches) Q = Dewater Rate (cf/day) H = Head on orifice, varies based on skimmer size (ft) Skimmer Sizes (Inches) 1.5 2 2.5 3 4 5 6 8 Volume to Dewater (cf) = Number of Skimmers Days to Drain = Q each (cf/day) = Selected Skimmer Size (inches) = Head on Skimmer (feet) = Diameter of Orifice (inches) =
Head (ft) 0.125 0.167 0.167 0.250 0.333 0.333 0.417 0.500 282,996 2 5 28,300
assumed 0.33 cfs
5 0.333 4.6
Route the flow through the Basin Riser is not perforated, but skimmer is attached. S = (1000/CN) - 10 2 Runoff Depth Q* (inches) = (P-0.2S) /(P+0.8S) TP (min) = 60.5(Q*)A/QP/1.39
Phase Storm Event (yrs) = S= Runoff Depth Q* (inches) = Time to Peak Tp (min) =
1 10 3.89 2.42 45.32
2 10 3.89 2.42 45.27
Ref 2, III-4
2 25 3.89 3.22 44.85
Determine Pond Storage Elevation (ZWater): Pick one point near max expected water surface and the other at the mid depth. Z1 (ft) = 3 S1 (cf)= 282,996 Z2 (ft) = 6 S2 (cf) = 600,920 b = ln(S2/S1)/ln(Z2/Z1) = 1.1 b
KS = S2/Z2 =
2 100 3.89 4.59 44.68
Ref 2, III-8
85,791
SB Dims SB 09
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/5/15 Date: 3/6/15
Task:
Sediment Basin #9
Sheet: 3
Of:
Determine Settling Velocity Conversion Factor =
3.281 ft/sec per m/sec
2
Gravitational Acceleration, g (m/s ) = Specific Gravity of soil (ss)= Kinematic Viscosity of water (v) = Diameter of the Design Particle d15 = Design Particle Settling Velocity
4
9.81 2.6 2 o 1.14E-06m / sec @ 20 C 40.00E-06 m
=
( g / 18 ) * [ ( ss
Route the Storm through the Basin using the Hydrograph Model Set Height of Emergency Spillway at (ft) = 7.50 Set Top of Dam at (ft) = 8.50 Emergency Spillway QE (cfs) = 100-Yr Storm QE (cfs) = 55.2 Cross Section = Trapezoid Channel Side Slope (z) = 5 n= 0.03 Vp (ft/sec) = 5.0 Allowable Shear Stress (psf) = 2.0 Bottom Width, b (ft) = 50
Ref 2, IV-11
2
-1)/v]d =
4.02E-03
ft/sec
See Hydrograph
(enter X for X:1) Grass Lined Permissible Velocity for lining Allowable Shear Stress for lining
Ref 2, II-7
Calculate Required Depth of Spillway: Normal-Depth Procedure AR2/3=Qn/1.49s0.5
Q=VA
Zreq=Qn/1.49s0.5
Area (A)= bd+z(d^2)
2/3
Zav=AR
Channel Slope ft/ft 0.01 0.02
Depth, d (ft) 0.40 0.33
A (sf) 20.94 16.91
Construct the channel to be :
R=Area/(b+2d((z^2)+1)^.5) Avg Shear Stress(T) = Kb*d*s*unit weight of water
Zreq 11.12 7.86 50 1.0 1%
R 0.39 0.32
Z avail 11.12 7.86
V (ft/sec) 2.6 3.3
T (psf) 0.3 0.4
ft, Bottom Width (measured at top of lining) ft, depth (measured at top of lining) slope
Anti-Seep Collar: Anti-Seep Collar Size = 2 * Barrel Dia Anti-Seep Collar Size (ft) = 7 Use Anti-Seep Collar Size (ft) = 7
x7
SB Dims SB 09
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/5/15 Date: 3/6/15
Task:
Sediment Basin #9
Sheet: 4
Of: 4
Minimum Concrete Base for Riser: Diameter of Riser (in) = 72 Avg Density of Concrete (lbs/cf) = Density of Water (lbs/cf) =
From Hydrograph 87.6 62.4
Riser Displacement (cf) = 189.44 Convert cf to cy = Min Concrete Needed (cy) = Width & Length (ft) = Thickness (ft) =
27-1 5.00 7 2.8
Anti-Vortex Device: Diameter of Riser (in) = Cylinder Diameter (in) = Cylinder Thickness (gage) = Cylinder Height (in) =
72 102 14 36
Pi * (DR/24)2 * Total Ht of Riser
From Hydrograph Ref 4, III-104, Table 3.14-D
Determine Tailwater conditions to size outlet apron Use Normal Depth Procedure (Manning's Eqn.) A*R2/3 = Q*n/1.49 s0.5
Area (A)= bd+z(d^2)
Z req = Q*n/1.49s0.5
R=Area/(b+2d((z^2)+1)^.5)
n= Vp (ft/sec) = Side Slope (z) = s (ft/ft) = Bottom Width (ft) = QB (cfs) =
Q (cfs) 85.1
Zreq 27.88
0.069 9 5 0.02 10.5 85.1 Flow Depth d (ft) 1.50
Ref 2, II-7
Zav = A*R2/3
6-inch diameter Rip Rap, Lined Channel Permissible Velocity for lining enter X for X:1 Outlet Slope (estimated) 6 * Barrel Diameter Peak Flow out of the barrel 25-yr Hydrograph
A (sf) 27.0
R (ft) 1.05
Zav 27.88
V (ft/sec) 3.1
Flow Depth = Tailwater, d (ft) = 1.50 0.5* Barrel Diameter (ft) = 1.75 Minimum Tailwater Conditions: d0.5*Diameter of Outlet Pipe Since the Tailwater is less than half of the diameter of the outlet, use Minimum Tailwater conditions. Barrel Diameter (ft) 3.5
Entrance (ft) 10.5
Length (ft) 22
Outlet Width (ft) 26
Median Rip Rap Size d50 0.7
Ref 1, 8.06.3
Selected Rip Rap Size (in) Class B
Conclusion The basin can contain the 25-yr storm and pass the 100-yr storm without overtopping the berm.
SB Dims SB 09
I Job No. 0453925-23673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow
Diameter of Riser (in) = Circumference of Riser (in) = Height of Riser from bottom of barrel (in) = Vertical spacing between holes (in) = Water Stage increment (ft)
72 226.2 80 0 0.05
l
Computed: PAW Date: 3/5/15 Checked: MDP Date: 3/6/15 Sheet 1 Of 2
From Hydrograph center to center
Orifice Equation Q = Cd * A * (2 * g * h)0.5 Q = cfs, discharge Cd = 0.6 coefficient of discharge A = sf, cross sectional area
Ref 1, p III-11
ft/sec2, gravity g = 32.2 h = ft, driving head measured from the center of the pipe
Row Holes per row Hole Diameter (in) Spacing edge to edge (in) Inlet Area (sf) Hole Stage (in) Hole Stage (ft)
1 0 0.75
2 0 0.75
Perforations 3 0 0.75
4 0 0.75
5 0 0.75
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
Skimmer 2
# of skimmers
Water Stage (ft) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Total Flow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.00 0.00 0.29 0.00 0.00 0.00 0.00 0.00 0.34 0.00 0.00 0.00 0.66 0.66 0.39 0.00 0.00 0.00 0.66 0.66 0.44 0.00 0.00 0.00 0.66 0.66 0.49 0.00 0.00 0.00 0.66 0.66 0.54 0.00 0.00 0.00 0.66 0.66 0.59 0.00 0.00 0.00 0.66 0.66 0.64 0.00 0.00 0.00 0.66 0.66 0.69 0.00 0.00 0.00 0.66 0.66 0.74 0.00 0.00 0.00 0.66 0.66 0.79 0.00 0.00 0.00 0.66 0.66 0.84 0.00 0.00 0.00 0.66 0.66 0.89 0.00 0.00 0.00 0.66 0.66 0.94 0.00 0.00 0.00 0.66 0.66 0.99 0.00 0.00 0.00 0.66 0.66 1.04 0.00 0.00 0.00 0.66 0.66 1.09 0.00 0.00 0.00 0.66 0.66 1.14 0.00 0.00 0.00 0.66 0.66 1.19 0.00 0.00 0.00 0.66 0.66 1.24 0.00 0.00 0.00 0.66 0.66 1.29 0.00 0.00 0.00 0.66 0.66 1.34 0.00 0.00 0.00 0.66 0.66 1.39 0.00 0.00 0.00 0.66 0.66 1.44 0.00 0.00 0.00 0.66 0.66 1.49 0.00 0.00 0.00 0.66 0.66 1.54 0.00 0.00 0.00 0.66 0.66 1.59 0.00 0.00 0.00 0.66 0.66 SB 09
Pipe Perf-Skimmer
I Job No. 0453925-23673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow 1.64 1.69 1.74 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.59 2.64 2.69 2.74 2.79 2.84 2.89 2.94 2.99 3.04 3.09 3.14 3.19 3.24 3.29 3.34 3.39 3.44 3.49 3.54 3.59 3.64 3.69 3.74 3.79 3.84 3.89 3.94 3.99
SB 09
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
l
Computed: PAW Date: 3/5/15 Checked: MDP Date: 3/6/15 Sheet 2 Of 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66
Pipe Perf-Skimmer
Computed By: PAW Date:3/5/15 Checked By: MDP Date: 3/6/15 Sheet: _1___of __2__
Sediment Basin #
Qp =
145.70
cfs
Tp =
45.32
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
SB 09
Colon
2 42 3.2 6.7 7.5 8.5 50 72 0
10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
268.70 269.50 270.50
262.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
9
Phase 1
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 0.7 0 0.0 0.00 0.00 2.8 84 0.0 0.00 0.00 6.2 418 0.0 0.00 0.00 10.9 1,163 0.0 0.00 0.00 16.8 2,473 0.0 0.00 0.00 23.8 4,491 0.1 0.00 0.00 31.7 7,345 0.1 0.00 0.00 40.4 11,149 0.2 0.00 0.00 49.7 15,998 0.2 0.00 0.00 59.5 21,965 0.3 0.00 0.00 69.5 29,104 0.4 0.66 0.66 79.6 37,290 0.5 0.66 0.66 89.6 46,686 0.6 0.66 0.66 99.2 57,277 0.7 0.66 0.66 108.3 69,025 0.8 0.66 0.66 116.8 81,869 1.0 0.66 0.66 124.4 95,727 1.1 0.66 0.66 131.0 110,498 1.3 0.66 0.66 136.5 126,064 1.4 0.66 0.66 140.8 142,289 1.6 0.66 0.66 143.8 159,029 1.8 0.66 0.66 145.4 176,125 1.9 0.66 0.66 145.6 193,415 2.1 0.66 0.66 144.4 210,732 2.3 0.66 0.66 141.9 227,909 2.5 0.66 0.66 138.0 244,779 2.6 0.66 0.66 132.9 261,185 2.8 0.66 0.66 126.6 276,976 2.9 0.66 0.66 119.8 292,013 3.1 0.66 0.66 113.1 306,229 3.2 0.66 0.66 106.8 319,644 3.4 0.66 0.66 100.8 332,302 3.5 0.66 0.66 95.2 344,246 3.6 0.66 0.66 89.9 355,514 3.7 0.66 0.66 84.9 366,146 3.8 0.66 0.66 80.2 376,176 3.9 0.66 0.66 75.7 385,638 4.0 0.66 0.66 71.5 394,564 4.1 0.66 0.66 67.5 402,984 4.2 0.66 0.66 63.7 410,925 4.2 0.66 0.66 60.2 418,414 4.3 0.66 0.66
4.0E-03 2 100% 5.4 1.3 1.3 0.0
1.1 85,791
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 267.39 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31
Bound Discharge [cfs] 0.00 0.00 118.17 134.27 145.65 154.66 162.17 168.64 174.33 179.41 183.99 188.16 191.90 195.36 198.56 201.53 204.28 206.84 209.21 211.42 213.46 215.36 217.12 218.74 220.23 221.61 222.87 224.03 225.07 226.02 226.88 227.65 228.36 229.00 229.59 230.13 230.62 231.08 231.50 231.89 232.25 232.58
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 53,715 N/A 61,030 N/A 66,206 N/A 70,300 N/A 73,715 N/A 76,656 N/A 79,242 N/A 81,550 N/A 83,632 N/A 85,525 100% 87,227 100% 88,800 100% 90,256 100% 91,605 100% 92,856 100% 94,018 100% 95,097 100% 96,099 100% 97,029 100% 97,891 100% 98,689 100% 99,426 100% 100,107 100% 100,732 100% 101,306 100% 101,830 100% 102,306 100% 102,737 100% 103,126 100% 103,479 100% 103,799 100% 104,091 100% 104,357 100% 104,602 100% 104,827 100% 105,035 100% 105,226 100% 105,403 100% 105,566 100% 105,718 100% SB 10-yr (P1) HG
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _2___of __2__
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 09
56.8 53.6 50.7 47.8 45.2 42.6 40.3 38.0 35.9 33.9 32.0 30.2 28.5 26.9 25.4 24.0 22.7 21.4 20.2 19.1 18.0 17.0 16.1 15.2 14.3 13.5 12.8 12.1 11.4 10.8 10.2 9.6 9.1 8.6 8.1 7.6 7.2 6.8 6.4 6.1 5.7 5.4 5.1 4.8 4.6 4.3 4.1 3.8 3.6 3.4 3.2 3.0 2.9 2.7 2.6 2.4 2.3 2.2 2.0 1.9 1.8 1.7
425,478 432,138 438,419 444,340 449,923 455,185 460,146 464,821 469,226 473,378 477,289 480,973 484,443 487,710 490,787 493,684 496,410 498,975 501,389 503,659 505,794 507,801 509,688 511,460 513,125 514,688 516,156 517,532 518,824 520,034 521,168 522,231 523,225 524,155 525,024 525,836 526,595 527,302 527,960 528,574 529,144 529,674 530,166 530,621 531,042 531,431 531,790 532,119 532,422 532,699 532,952 533,182 533,390 533,578 533,747 533,897 534,030 534,148 534,249 534,337 534,411 534,471
4.4 4.4 4.5 4.5 4.6 4.6 4.7 4.7 4.8 4.8 4.9 4.9 4.9 5.0 5.0 5.0 5.0 5.1 5.1 5.1 5.1 5.1 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66
1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31
232.89 233.18 233.45 233.69 233.93 234.14 234.34 234.53 234.71 234.87 235.03 235.17 235.31 235.43 235.55 235.66 235.76 235.86 235.95 236.03 236.11 236.19 236.26 236.32 236.38 236.44 236.50 236.55 236.59 236.64 236.68 236.72 236.75 236.78 236.82 236.84 236.87 236.90 236.92 236.94 236.96 236.98 237.00 237.02 237.03 237.04 237.06 237.07 237.08 237.09 237.10 237.11 237.11 237.12 237.13 237.13 237.14 237.14 237.14 237.15 237.15 237.15
105,859 105,990 106,112 106,225 106,330 106,429 106,520 106,606 106,686 106,761 106,831 106,896 106,957 107,014 107,068 107,118 107,165 107,209 107,250 107,289 107,325 107,358 107,390 107,420 107,448 107,474 107,498 107,521 107,542 107,562 107,580 107,598 107,614 107,629 107,644 107,657 107,669 107,681 107,691 107,701 107,711 107,719 107,727 107,734 107,741 107,747 107,753 107,759 107,763 107,768 107,772 107,776 107,779 107,782 107,785 107,787 107,789 107,791 107,793 107,794 107,795 107,796
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #9 Colon Mine Phase 1 Hydrograph 10-Yr Storm
This page intentionally left blank.
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: _1___of _2_
Qp = Tp = dT = Max of
or
199.50 45.27 2 1.0%
Sediment Basin # 9
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 42 3.2 6.7 7.5 8.5 50 72 0
Phase 2 10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
268.70 269.50 270.50
262.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 09
Colon
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.0 0 0.0 0.00 0.00 3.8 115 0.0 0.00 0.00 8.5 573 0.0 0.00 0.00 15.0 1,596 0.0 0.00 0.00 23.1 3,394 0.1 0.00 0.00 32.6 6,162 0.1 0.00 0.00 43.5 10,078 0.1 0.00 0.00 55.4 15,296 0.2 0.00 0.00 68.2 21,947 0.3 0.00 0.00 81.6 30,132 0.4 0.66 0.66 95.4 39,768 0.5 0.66 0.66 109.2 51,053 0.6 0.66 0.66 122.8 63,997 0.8 0.66 0.66 136.0 78,579 0.9 0.66 0.66 148.5 94,745 1.1 0.66 0.66 160.1 112,413 1.3 0.66 0.66 170.5 131,468 1.5 0.66 0.66 179.6 151,772 1.7 0.66 0.66 187.1 173,161 1.9 0.66 0.66 192.9 195,452 2.1 0.66 0.66 196.9 218,443 2.4 0.66 0.66 199.1 241,919 2.6 0.66 0.66 199.4 265,655 2.8 0.66 0.66 197.7 289,422 3.1 0.66 0.66 194.2 312,991 3.3 0.66 0.66 188.8 336,135 3.5 0.66 0.66 181.8 358,637 3.7 0.66 0.66 173.1 380,290 3.9 0.66 0.66 163.7 400,906 4.1 0.66 0.66 154.6 420,396 4.3 0.66 0.66 146.0 438,789 4.5 0.66 0.66 137.8 456,147 4.7 0.66 0.66 130.1 472,527 4.8 0.66 0.66 122.9 487,984 5.0 0.66 0.66 116.0 502,570 5.1 0.66 0.66 109.5 516,332 5.2 0.66 0.66 103.4 529,318 5.3 0.66 0.66 97.6 541,571 5.5 0.66 0.66 92.2 553,131 5.6 0.66 0.66 87.0 564,036 5.7 0.66 0.66 82.2 574,325 5.8 0.66 0.66 77.6 584,030 5.8 0.66 0.66
WEIR FLOW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4.0E-03 2 100% 6.9 14.3 14.3 0.0
1.1 85,791
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 268.92 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
BARREL TOTAL Bound Estimated CAPACIT OUTFLOW Discharge Surface Y [cfs] [cfs] [cfs] Area (sf) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 121.18 55,083 0.00 0.00 137.69 62,584 0.00 0.00 149.36 67,893 0.00 0.00 158.60 72,091 0.00 0.00 166.30 75,592 0.00 0.00 172.94 78,608 0.00 0.00 178.77 81,260 0.00 0.00 183.98 83,627 0.66 1.31 188.68 85,761 0.66 1.31 192.88 87,675 0.66 1.31 196.75 89,434 0.66 1.31 200.32 91,055 0.66 1.31 203.62 92,554 0.66 1.31 206.67 93,941 0.66 1.31 209.50 95,227 0.66 1.31 212.12 96,420 0.66 1.31 214.56 97,528 0.66 1.31 216.82 98,556 0.66 1.31 218.92 99,509 0.66 1.31 220.86 100,393 0.66 1.31 222.66 101,211 0.66 1.31 224.33 101,967 0.66 1.31 225.86 102,665 0.66 1.31 227.27 103,306 0.66 1.31 228.57 103,893 0.66 1.31 229.75 104,430 0.66 1.31 230.82 104,918 0.66 1.31 231.79 105,359 0.66 1.31 232.67 105,758 0.66 1.31 233.46 106,119 0.66 1.31 234.18 106,447 0.66 1.31 234.84 106,746 0.66 1.31 235.44 107,019 0.66 1.31 235.99 107,270 0.66 1.31 236.50 107,501 0.66 1.31 236.97 107,713 0.66 1.31 237.40 107,910 0.66 1.31 237.80 108,091 0.66 1.31 238.17 108,259 0.66 1.31 238.51 108,415 0.66 1.31 238.83 108,559
Settling Efficiency [%] N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: _2___of _2_
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 09
73.3 69.2 65.3 61.7 58.2 55.0 51.9 49.0 46.3 43.7 41.3 39.0 36.8 34.7 32.8 31.0 29.2 27.6 26.1 24.6 23.2 21.9 20.7 19.6 18.5 17.4 16.5 15.5 14.7 13.9 13.1 12.4 11.7 11.0 10.4 9.8 9.3 8.8 8.3 7.8 7.4 7.0 6.6 6.2 5.9 5.5 5.2 4.9 4.7 4.4 4.1 3.9 3.7 3.5 3.3 3.1 2.9 2.8 2.6 2.5
593,185 601,820 609,964 617,645 624,889 631,720 638,160 644,232 649,957 655,353 660,440 665,233 669,751 674,007 678,017 681,789 685,230 688,300 690,992 693,317 695,294 696,949 698,310 699,405 700,264 700,912 701,377 701,681 701,846 701,891 701,833 701,688 701,469 701,189 700,857 700,482 700,073 699,636 699,177 698,701 698,212 697,715 697,212 696,706 696,199 695,694 695,191 694,693 694,201 693,715 693,236 692,764 692,301 691,847 691,402 690,965 690,538 690,121 689,713 689,314
5.9 6.0 6.1 6.2 6.2 6.3 6.3 6.4 6.4 6.5 6.5 6.6 6.6 6.7 6.7 6.7 6.8 6.8 6.8 6.8 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.8
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.68 1.14 1.83 2.58 3.34 4.06 4.72 5.30 5.79 6.20 6.53 6.78 6.96 7.08 7.15 7.17 7.14 7.09 7.00 6.89 6.76 6.61 6.46 6.29 6.11 5.94 5.76 5.57 5.39 5.21 5.03 4.86 4.68 4.52 4.35 4.19 4.04 3.89 3.74 3.60 3.47 3.34 3.21 3.09 2.97 2.86
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 102.96 103.31 103.64 103.92 104.18 104.39 104.58 104.73 104.86 104.96 105.04 105.10 105.14 105.17 105.18 105.19 105.18 105.17 105.15 105.12 105.09 105.06 105.02 104.98 104.94 104.89 104.85 104.80 104.76 104.71 104.66 104.61 104.57 104.52 104.48 104.43 104.39 104.34 104.30 104.26 104.21 104.17 104.13 104.10 104.06 104.02
1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.36 2.28 3.65 5.17 6.69 8.13 9.44 10.60 11.58 12.40 13.06 13.56 13.93 14.17 14.30 14.34 14.29 14.17 14.00 13.78 13.52 13.23 12.91 12.58 12.23 11.87 11.51 11.15 10.78 10.42 10.07 9.71 9.37 9.03 8.70 8.39 8.07 7.77 7.48 7.20 6.93 6.67 6.42 6.18 5.94 5.72
239.13 239.40 239.66 239.90 240.12 240.33 240.52 240.70 240.87 241.03 241.18 241.32 241.45 241.57 241.68 241.79 241.88 241.97 242.05 242.11 242.16 242.21 242.25 242.28 242.30 242.32 242.33 242.34 242.35 242.35 242.35 242.34 242.34 242.33 242.32 242.31 242.30 242.28 242.27 242.26 242.25 242.23 242.22 242.20 242.19 242.18 242.16 242.15 242.13 242.12 242.11 242.09 242.08 242.07 242.06 242.04 242.03 242.02 242.01 242.00
108,693 108,818 108,935 109,043 109,144 109,239 109,327 109,409 109,486 109,558 109,626 109,689 109,748 109,803 109,855 109,903 109,947 109,987 110,021 110,050 110,075 110,096 110,113 110,127 110,137 110,145 110,151 110,155 110,157 110,158 110,157 110,155 110,152 110,149 110,145 110,140 110,135 110,129 110,124 110,118 110,112 110,105 110,099 110,093 110,086 110,080 110,074 110,067 110,061 110,055 110,049 110,043 110,037 110,031 110,026 110,020 110,015 110,010 110,004 109,999
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0 TOTAL OUTFLOW [cfs] INFLOW [cfs]
150
3.0
STAGE [ft] 100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE (ft)
FLOW (cfs)
Sediment Basin #9 Colon Mine Phase 2 Hydrograph 10-Yr Storm
This page intentionally left blank.
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: __1__of __2__
Qp = Tp =
268.73 44.85 dT = Max of 2 or 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 42 3.2 6.7 7.5 8.5 50 72 0
Sediment Basin # 9
Phase 2 25 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
268.70 269.50 270.50
262.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 09
Colon
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.3 0 0.0 0.00 0.00 5.2 158 0.0 0.00 0.00 11.7 787 0.0 0.00 0.00 20.5 2,190 0.0 0.00 0.00 31.6 4,656 0.1 0.00 0.00 44.7 8,452 0.1 0.00 0.00 59.6 13,820 0.2 0.00 0.00 75.9 20,971 0.3 0.00 0.00 93.4 30,080 0.4 0.66 0.66 111.6 41,128 0.5 0.66 0.66 130.4 54,368 0.7 0.66 0.66 149.2 69,854 0.8 0.66 0.66 167.7 87,595 1.0 0.66 0.66 185.5 107,556 1.2 0.66 0.66 202.4 129,659 1.5 0.66 0.66 217.9 153,785 1.7 0.66 0.66 231.7 179,772 2.0 0.66 0.66 243.7 207,424 2.3 0.66 0.66 253.6 236,514 2.5 0.66 0.66 261.0 266,783 2.8 0.66 0.66 266.1 297,951 3.1 0.66 0.66 268.5 329,721 3.5 0.66 0.66 268.3 361,783 3.8 0.66 0.66 265.5 393,821 4.1 0.66 0.66 260.1 425,521 4.4 0.66 0.66 252.2 456,574 4.7 0.66 0.66 242.1 486,685 4.9 0.66 0.66 229.8 515,577 5.2 0.66 0.66 217.1 542,996 5.5 0.66 0.66 204.9 568,894 5.7 0.66 0.66 193.4 593,324 5.9 0.66 0.66 182.5 616,370 6.1 0.66 0.66 172.2 638,109 6.3 0.66 0.66 162.5 658,614 6.5 0.66 0.66 153.3 677,956 6.7 0.66 0.67 144.7 696,195 6.9 0.66 5.03 136.6 712,352 7.0 0.66 11.76 128.9 725,917 7.1 0.66 18.81 121.6 736,867 7.2 0.66 25.27 114.8 745,394 7.3 0.66 30.74 108.3 751,788 7.4 0.66 35.06 102.2 756,368 7.4 0.66 38.28
4.0E-03 2 92% 7.5 85.1 85.1 0.0
1.1 85,791
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 269.5 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFL [cfs] [cfs] OW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 102.95 1.35 0.00 104.66 10.06 0.00 106.15 23.52 0.00 107.38 37.61 0.00 108.36 50.54 0.00 109.12 61.47 0.00 109.69 70.13 0.00 110.09 76.56
Bound Discharge [cfs] 0.00 0.00 124.27 141.19 153.17 162.64 170.54 177.34 183.31 188.65 193.40 197.74 201.72 205.38 208.77 211.89 214.79 217.47 219.96 222.27 224.40 226.38 228.22 229.91 231.46 232.89 234.20 235.39 236.47 237.45 238.33 239.13 239.86 240.52 241.12 241.68 242.19 242.63 243.00 243.29 243.51 243.67 243.79
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 56,487 N/A 64,179 N/A 69,622 N/A 73,926 N/A 77,516 N/A 80,607 N/A 83,325 N/A 85,750 100% 87,909 100% 89,882 100% 91,692 100% 93,357 100% 94,893 100% 96,314 100% 97,630 100% 98,850 100% 99,981 100% 101,030 100% 102,002 100% 102,902 100% 103,734 100% 104,503 100% 105,210 100% 105,860 100% 106,454 100% 106,996 100% 107,488 100% 107,932 100% 108,333 100% 108,696 100% 109,025 100% 109,326 100% 109,602 100% 109,854 100% 110,086 100% 110,287 99% 110,453 98% 110,584 97% 110,686 95% 110,761 94% 110,814 93% SB 25-yr HG (P2)
Computed By: PAW Date: 3/5/15 Checked By: EAW Date: 3/615 Sheet: __2__of __2__
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 09
96.4 91.0 85.9 81.0 76.5 72.2 68.1 64.3 60.7 57.2 54.0 51.0 48.1 45.4 42.8 40.4 38.1 36.0 34.0 32.1 30.3 28.5 26.9 25.4 24.0 22.6 21.4 20.2 19.0 18.0 16.9 16.0 15.1 14.2 13.4 12.7 12.0 11.3 10.7 10.1 9.5 9.0 8.5 8.0 7.5 7.1 6.7 6.3 6.0 5.6 5.3 5.0 4.7 4.5 4.2 4.0 3.8 3.5 3.3 3.2 3.0
759,445 761,300 762,179 762,287 761,796 760,844 759,543 757,981 756,230 754,345 752,370 750,340 748,280 746,212 744,152 742,112 740,101 738,126 736,192 734,303 732,462 730,669 728,927 727,235 725,594 724,002 722,460 720,967 719,521 718,122 716,768 715,458 714,192 712,967 711,783 710,637 709,530 708,460 707,425 706,424 705,457 704,522 703,617 702,743 701,897 701,079 700,288 699,523 698,783 698,067 697,375 696,704 696,056 695,428 694,820 694,232 693,662 693,110 692,576 692,058 691,557
7.4 7.5 7.5 7.5 7.5 7.5 7.4 7.4 7.4 7.4 7.4 7.4 7.3 7.3 7.3 7.3 7.3 7.3 7.2 7.2 7.2 7.2 7.2 7.2 7.1 7.1 7.1 7.1 7.1 7.1 7.1 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.8 6.8 6.8 6.8 6.8
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66
40.49 41.84 42.49 42.57 42.21 41.51 40.56 39.43 38.18 36.85 35.47 34.07 32.67 31.28 29.92 28.59 27.30 26.06 24.86 23.70 22.59 21.53 20.52 19.55 18.63 17.74 16.90 16.10 15.34 14.62 13.93 13.27 12.65 12.05 11.49 10.95 10.44 9.96 9.50 9.06 8.64 8.25 7.87 7.51 7.17 6.85 6.54 6.25 5.97 5.70 5.45 5.21 4.98 4.77 4.56 4.36 4.18 4.00 3.83 3.67 3.51
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
110.36 110.52 110.60 110.61 110.56 110.48 110.37 110.23 110.08 109.91 109.74 109.56 109.38 109.19 109.01 108.83 108.65 108.47 108.30 108.13 107.97 107.81 107.65 107.50 107.35 107.21 107.07 106.93 106.80 106.67 106.55 106.43 106.32 106.20 106.10 105.99 105.89 105.79 105.70 105.61 105.52 105.43 105.35 105.27 105.19 105.11 105.04 104.97 104.90 104.83 104.77 104.71 104.65 104.59 104.53 104.48 104.43 104.37 104.32 104.28 104.23
80.98 83.69 84.98 85.14 84.41 83.02 81.12 78.86 76.36 73.69 70.93 68.13 65.33 62.56 59.84 57.18 54.60 52.11 49.71 47.40 45.19 43.07 41.04 39.10 37.25 35.49 33.81 32.21 30.69 29.24 27.86 26.54 25.29 24.11 22.98 21.91 20.89 19.92 18.99 18.12 17.28 16.49 15.74 15.02 14.34 13.69 13.08 12.49 11.93 11.40 10.90 10.42 9.96 9.53 9.12 8.72 8.35 7.99 7.66 7.33 7.03
243.87 243.92 243.94 243.94 243.93 243.91 243.87 243.83 243.79 243.74 243.69 243.64 243.58 243.53 243.48 243.42 243.37 243.32 243.27 243.22 243.17 243.12 243.08 243.03 242.99 242.95 242.90 242.86 242.83 242.79 242.75 242.72 242.68 242.65 242.62 242.59 242.56 242.53 242.50 242.47 242.44 242.42 242.39 242.37 242.35 242.32 242.30 242.28 242.26 242.24 242.22 242.20 242.19 242.17 242.15 242.14 242.12 242.10 242.09 242.08 242.06
110,850 110,872 110,882 110,883 110,877 110,866 110,851 110,833 110,813 110,791 110,768 110,744 110,720 110,695 110,671 110,647 110,623 110,599 110,576 110,554 110,532 110,510 110,489 110,469 110,449 110,430 110,411 110,393 110,375 110,358 110,342 110,326 110,310 110,295 110,280 110,266 110,253 110,239 110,226 110,214 110,202 110,190 110,179 110,168 110,158 110,148 110,138 110,128 110,119 110,110 110,101 110,093 110,085 110,077 110,069 110,062 110,054 110,047 110,041 110,034 110,028
93% 93% 92% 92% 92% 93% 93% 93% 93% 94% 94% 94% 95% 95% 95% 96% 96% 96% 97% 97% 97% 97% 98% 98% 98% 98% 98% 98% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 25-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
OUTFLOW INFLOW [cfs]
200
STAGE [ft]
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #9 Colon Mine Phase 2 Hydrograph 25-Yr Storm
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Computed By: PAW Date: 3/5/15 Checked By: MDP
Date: 3/6/15
Sheet: _1__of __2_
Qp = Tp = dT = Max of
or
384.1 44.7 2 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 42 3.2 6.7 7.5 8.5 50 72 0
Sediment Basin # 9
Phase 2 100 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
268.70 269.50 270.50
262.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 09
Colon
4.0E-03 2 73% 8.0 243.8 188.6 55.2
1.1 85,791
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 270.0 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
RISER WEIR BARREL TOTAL Bound INFLOW STORAGE STAGE Skimmer CAPACIT FLOW CAPACITY OUTFLOW Discharge [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] [cfs] [cfs] [cfs] [cfs] 0.0 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 1.9 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 7.5 228 0.0 0.00 0.00 0.00 0.00 0.00 127.93 16.8 1,133 0.0 0.00 0.00 0.00 0.00 0.00 145.35 29.6 3,154 0.0 0.00 0.00 0.00 0.00 0.00 157.68 45.6 6,705 0.1 0.00 0.00 0.00 0.00 0.00 167.42 64.4 12,171 0.2 0.00 0.00 0.00 0.00 0.00 175.55 85.8 19,900 0.3 0.00 0.00 0.00 0.00 0.00 182.55 109.2 30,193 0.4 0.66 0.66 0.00 0.66 1.31 188.71 134.4 43,145 0.5 0.66 0.66 0.00 0.66 1.31 194.14 160.6 59,110 0.7 0.66 0.66 0.00 0.66 1.31 199.06 187.5 78,225 0.9 0.66 0.66 0.00 0.66 1.31 203.55 214.4 100,563 1.2 0.66 0.66 0.00 0.66 1.31 207.65 240.9 126,135 1.4 0.66 0.66 0.00 0.66 1.31 211.43 266.5 154,890 1.7 0.66 0.66 0.00 0.66 1.31 214.91 290.6 186,710 2.0 0.66 0.66 0.00 0.66 1.31 218.12 312.7 221,419 2.4 0.66 0.66 0.00 0.66 1.31 221.10 332.4 258,784 2.8 0.66 0.66 0.00 0.66 1.31 223.86 349.4 298,519 3.2 0.66 0.66 0.00 0.66 1.31 226.42 363.3 340,291 3.6 0.66 0.66 0.00 0.66 1.31 228.79 373.8 383,728 4.0 0.66 0.66 0.00 0.66 1.31 230.98 380.7 428,423 4.4 0.66 0.66 0.00 0.66 1.31 233.02 383.8 473,946 4.8 0.66 0.66 0.00 0.66 1.31 234.90 383.2 519,850 5.3 0.66 0.66 0.00 0.66 1.31 236.63 378.8 565,680 5.7 0.66 0.66 0.00 0.66 1.31 238.22 370.8 610,984 6.1 0.66 0.66 0.00 0.66 1.31 239.69 359.2 655,318 6.5 0.66 0.66 0.00 0.66 1.31 241.03 344.2 698,260 6.9 0.66 5.77 0.00 104.85 11.55 242.25 326.7 738,184 7.3 0.66 26.09 0.00 108.48 52.19 243.32 308.3 771,132 7.5 0.66 49.26 1.59 111.37 100.11 244.17 290.8 796,112 7.8 0.66 69.80 21.41 113.51 161.02 244.79 274.4 811,692 7.9 0.66 83.76 39.82 114.82 207.33 245.16 258.9 819,740 8.0 0.66 91.29 50.70 115.49 233.27 245.36 244.3 822,814 8.0 0.66 94.22 55.08 115.75 243.52 245.43 230.4 822,903 8.0 0.66 94.30 55.21 115.76 243.81 245.43 217.4 821,299 8.0 0.66 92.77 52.91 115.62 238.44 245.39 205.1 818,776 8.0 0.66 90.37 49.35 115.41 230.10 245.33 193.5 815,779 7.9 0.66 87.56 45.23 115.16 220.35 245.26 182.6 812,561 7.9 0.66 84.56 40.95 114.90 210.07 245.18 172.3 809,263 7.9 0.66 81.53 36.71 114.62 199.76 245.11 162.5 805,963 7.9 0.66 78.53 32.62 114.34 189.68 245.03 153.3 802,705 7.8 0.66 75.61 28.74 114.07 179.95 244.95 144.7 799,511 7.8 0.66 72.78 25.10 113.80 170.65 244.87
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 58,150 N/A 66,068 N/A 71,672 N/A 76,102 N/A 79,797 N/A 82,978 N/A 85,775 100% 88,245 100% 90,482 100% 92,521 100% 94,387 100% 96,103 100% 97,686 100% 99,148 100% 100,501 100% 101,755 100% 102,918 100% 103,995 100% 104,993 100% 105,917 100% 106,771 100% 107,559 100% 108,284 100% 108,949 100% 109,558 100% 110,112 100% 110,600 96% 110,985 90% 111,267 82% 111,438 77% 111,526 74% 111,559 73% 111,560 73% 111,543 73% 111,515 74% 111,483 75% 111,448 77% 111,412 78% 111,375 79% 111,340 80% 111,304 81% SB 100-yr HG (P2)
Computed By: PAW Date: 3/5/15 Checked By: MDP
Date: 3/6/15
Sheet: _2__of __2_
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 09
136.5 128.8 121.5 114.6 108.1 102.0 96.3 90.8 85.7 80.8 76.3 72.0 67.9 64.1 60.4 57.0 53.8 50.8 47.9 45.2 42.6 40.2 37.9 35.8 33.8 31.9 30.1 28.4 26.8 25.2 23.8 22.5 21.2 20.0 18.9 17.8 16.8 15.8 15.0 14.1 13.3 12.6 11.8 11.2 10.5 9.9 9.4 8.9 8.4 7.9 7.4 7.0 6.6 6.2 5.9 5.6 5.2 4.9 4.7 4.4
796,393 793,356 790,399 787,523 784,724 781,997 779,338 776,741 774,201 771,710 769,259 766,835 764,421 761,972 759,497 757,022 754,565 752,140 749,756 747,422 745,142 742,919 740,757 738,657 736,619 734,643 732,728 730,875 729,081 727,346 725,668 724,045 722,477 720,962 719,498 718,083 716,716 715,395 714,119 712,886 711,695 710,545 709,433 708,359 707,321 706,318 705,349 704,413 703,507 702,632 701,786 700,969 700,178 699,413 698,674 697,959 697,267 696,597 695,950 695,323
7.8 7.7 7.7 7.7 7.7 7.6 7.6 7.6 7.6 7.6 7.5 7.5 7.5 7.5 7.4 7.4 7.4 7.4 7.4 7.3 7.3 7.3 7.3 7.3 7.2 7.2 7.2 7.2 7.2 7.2 7.1 7.1 7.1 7.1 7.1 7.1 7.1 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66
70.05 67.42 64.90 62.48 60.14 57.90 55.74 53.66 51.65 49.71 47.81 45.97 44.15 42.34 40.53 38.74 37.00 35.31 33.67 32.09 30.57 29.11 27.72 26.39 25.12 23.91 22.75 21.65 20.61 19.61 18.67 17.77 16.91 16.10 15.33 14.60 13.90 13.24 12.61 12.02 11.45 10.91 10.40 9.91 9.45 9.01 8.60 8.20 7.82 7.47 7.13 6.80 6.50 6.20 5.93 5.66 5.41 5.17 4.95 4.73
21.71 18.56 15.66 13.00 10.58 8.38 6.41 4.66 3.14 1.86 0.84 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
113.54 113.28 113.03 112.78 112.54 112.31 112.08 111.86 111.64 111.42 111.21 111.00 110.79 110.58 110.36 110.15 109.93 109.72 109.51 109.30 109.10 108.90 108.71 108.52 108.34 108.16 107.99 107.83 107.66 107.51 107.36 107.21 107.07 106.93 106.80 106.67 106.55 106.43 106.31 106.20 106.09 105.98 105.88 105.78 105.69 105.60 105.51 105.42 105.34 105.26 105.18 105.10 105.03 104.96 104.89 104.82 104.76 104.70 104.64 104.58
161.80 153.41 145.46 137.95 130.87 124.19 117.90 111.99 106.45 101.27 96.46 92.08 88.31 84.67 81.05 77.49 74.00 70.61 67.34 64.18 61.14 58.23 55.44 52.78 50.24 47.81 45.51 43.31 41.22 39.23 37.34 35.54 33.83 32.20 30.66 29.20 27.80 26.48 25.22 24.03 22.90 21.82 20.80 19.83 18.90 18.02 17.19 16.40 15.65 14.93 14.25 13.61 12.99 12.41 11.85 11.32 10.82 10.35 9.89 9.46
244.79 244.72 244.65 244.58 244.51 244.44 244.37 244.31 244.24 244.18 244.12 244.06 244.00 243.93 243.87 243.81 243.75 243.68 243.62 243.56 243.50 243.44 243.39 243.33 243.28 243.23 243.18 243.13 243.08 243.03 242.99 242.95 242.90 242.86 242.82 242.79 242.75 242.71 242.68 242.65 242.61 242.58 242.55 242.52 242.50 242.47 242.44 242.42 242.39 242.37 242.34 242.32 242.30 242.28 242.26 242.24 242.22 242.20 242.18 242.17
111,270 111,236 111,203 111,171 111,139 111,108 111,078 111,049 111,020 110,992 110,963 110,936 110,908 110,879 110,851 110,822 110,793 110,765 110,737 110,710 110,683 110,656 110,631 110,606 110,582 110,558 110,535 110,513 110,491 110,470 110,450 110,430 110,411 110,393 110,375 110,358 110,341 110,325 110,309 110,294 110,279 110,265 110,251 110,238 110,225 110,213 110,201 110,189 110,178 110,167 110,156 110,146 110,136 110,127 110,117 110,108 110,100 110,091 110,083 110,075
82% 83% 84% 85% 86% 87% 88% 89% 90% 90% 91% 91% 92% 92% 93% 93% 94% 94% 95% 95% 95% 96% 96% 96% 97% 97% 97% 97% 98% 98% 98% 98% 98% 98% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 100-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
OUTFLOW 250
INFLOW [cfs]
5.0
STAGE [ft] 200
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #9 Colon Mine Phase 2 Hydrograph 100-Yr Storm
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Section / Item Binder Cover Spine Calculation B - Stormwater Sediment Basin Calculations Drawings 01C-11 01C-12
Action Needed
Comments
replace replace
added revision date added revision date
replace entire section
Revisions to Sediment Basins 3, 4, 6, 8, and 9 for 25-year 24-hour storm
replace select drawings
Revisions to Erosion & Sediment Control Plan for 25-year 24-hour storm
Mine Permit Transfer/Modification
Colon Mine Site Charah, Inc. Sanford, North Carolina November 2014 Revised December 2014 Revised March 2015
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #1
Sheet: 1
Of: 4
Objective
Design the sediment basin to contain the 10-year storm and pass the 100-year storm without over topping the berm.
References 1. NC Erosion and Sediment Control Planning and Design Manual. 2. "Elements of Urban Stormwater Design" by H. Rooney Malcom, P.E. 3. VA Erosion and Sediment Control Handbook 3. NOAA Atlas 14, Volume 2, Version 3 Given Phase Storm Event (yrs) = Total Drainage Area A (ac) = Disturbed Area (ac) = Curve Number CN = Rainfall Depth P (in) = Peak Flow Qp (cfs) =
1 10 5.4 5.4 86 5.28 32.86
2 10 9.3 9.3 86 5.28 43.09
2 25 9.3 9.3 86 6.28 53.49
2 100 9.3 9.3 86 7.88 70.07
Hydrographs (24-hr rainfall) Hydrographs
Ref 3
Design Criteria Required sediment storage Required sediment storage
1,800 16,740
cf / acre of drainage cf (based on largest Phase)
Required Surface Area Required Surface Area (SF)
435 18,744
sf/cfs of the 10-yr storm peak flow (based on the largest Phase in cfs) of the 10-yr storm peak flow (based on the largest Phase)
Determine Shape of Basin: Measure the area of the Basin using AutoCADD. Calculate Volume of the Basin using Truncated Pyramid Method. Shape factor used in hydrographs basin depth may be gretaer than indicated below
Elevation (ft) 283 283 284 285 286 287 288 289
Depth (ft) 0 0 1 2 3 4 5 6
Area (sf) 0 13,792 15,414 17,133 18,947 21,463 23,731 26,305
Volume (cf) 0 14,595 16,266 18,032 20,192 22,588 25,007
Design Sediment Depth (ft) = 3 Sediment Storage (cf) = 48,894 Design Surface Area Depth (ft) = 3 Surface Area (sf) = 18,947
Cumulative Vol (cf) 0 14,595 30,861 48,894 69,086 91,673 116,680
Cumulative Vol (cy) 0 541 1,143 1,811 2,559 3,395 4,321
Required Sediment Storage Achieved
Required Surface Area Achieved
SB Dims SB 01.xlsx
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #1
Sheet: 2
Of: 4
Select Skimmer A. R. Jarrett Method D = [Q / (2,310 * (H 0.5)]0.5 D =Diameter of Orifice (inches) Q = Dewater Rate (cf/day) H = Head on orifice, varies based on skimmer size (ft) Skimmer Sizes (Inches) 1.5 2 2.5 3 4 5 6 8
Head (ft) 0.125 0.167 0.167 0.250 0.333 0.333 0.417 0.500
Volume to Dewater (cf) = Number of Skimmers Days to Drain = Q each (cf/day) =
48,894 1 5 9,779
Selected Skimmer Size (inches) = Head on Skimmer (feet) = Diameter of Orifice (inches) =
4 0.333 2.7
assumed 0.11 cfs
Route the flow through the Basin Riser is not perforated, but skimmer is attached. S = (1000/CN) - 10 2 Runoff Depth Q* (inches) = (P-0.2S) /(P+0.8S) TP (min) = 60.5(Q*)A/QP/1.39
Phase Storm Event (yrs) = S= Runoff Depth Q* (inches) = Time to Peak T p (min) =
1 10 1.63 3.73 26.67
2 10 1.63 3.73 35.03
Ref 2, III-4
2 25 1.63 4.68 35.39
Determine Pond Storage Elevation (ZWater): Pick one point near max expected water surface and the other at the mid depth. Z1 (ft) = 3 S1 (cf)= 48,894 Z2 (ft) = 6 S2 (cf) = 116,680 1.3 b = ln(S2/S1)/ln(Z2/Z1) = b
KS = S2/Z2 =
2 100 1.63 6.22 35.90
Ref 2, III-8
12,318
SB Dims SB 01.xlsx
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #1
Sheet: 3
Of: 4
Determine Settling Velocity Conversion Factor =
3.281 ft/sec per m/sec
2
Gravitational Acceleration, g (m/s ) = Specific Gravity of soil (ss)= Kinematic Viscosity of water (v) = Diameter of the Design Particle d15 = Design Particle Settling Velocity
9.81 2.6 2 o 1.14E-06m / sec @ 20 C 40.00E-06 m
=
( g / 18 ) * [ ( ss
Route the Storm through the Basin using the Hydrograph Model Set Height of Emergency Spillway at (ft) = 7.00 Set Top of Dam at (ft) = 7.50 Emergency Spillway QE (cfs) = 100-Yr Storm QE (cfs) = 5.8 Cross Section = Trapezoid Channel Side Slope (z) = 5 n= 0.03 Vp (ft/sec) = 5.0 Allowable Shear Stress (psf) = 2.0 Bottom Width, b (ft) = 20
Ref 2, IV-11
- 1 ) / v ] d2 =
4.02E-03
ft/sec
See Hydrograph
(enter X for X:1) Grass Lined Permissible Velocity for lining Allowable Shear Stress for lining
Ref 2, II-7
Calculate Required Depth of Spillway: Normal-Depth Procedure AR2/3=Qn/1.49s0.5
Q=VA
Zreq=Qn/1.49s0.5
Area (A)= bd+z(d^2)
2/3
Zav=AR
Channel Slope ft/ft 0.01 0.02
Depth, d (ft) 0.18 0.15
A (sf) 3.77 3.03
Construct the channel to be :
R=Area/(b+2d((z^2)+1)^.5) Avg Shear Stress(T) = Kb*d*s*unit weight of water
Zreq 1.17 0.82 20 0.5 1%
R 0.17 0.14
Z avail 1.17 0.82
V (ft/sec) 1.5 1.9
T (psf) 0.1 0.2
ft, Bottom Width (measured at top of lining) ft, depth (measured at top of lining) slope
Anti-Seep Collar: Anti-Seep Collar Size = 2 * Barrel Dia Anti-Seep Collar Size (ft) = 3 Use Anti-Seep Collar Size (ft) = 3
x3
SB Dims SB 01.xlsx
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #1
Sheet: 4
Of: 4
Minimum Concrete Base for Riser: Diameter of Riser (in) = 54 Avg Density of Concrete (lbs/cf) = Density of Water (lbs/cf) =
From Hydrograph 87.6 62.4
Riser Displacement (cf) = 101.79 Convert cf to cy = Min Concrete Needed (cy) = Width & Length (ft) = Thickness (ft) = Anti-Vortex Device: Diameter of Riser (in) = Cylinder Diameter (in) = Cylinder Thickness (gage) = Cylinder Height (in) =
Pi * (DR/24)2 * Total Ht of Riser
27-1 2.69 5.5 2.4
54 78 16 25
From Hydrograph Ref 3, III-104, Table 3.14-D
Determine Tailwater conditions to size outlet apron Use Normal Depth Procedure (Manning's Eqn.) A*R2/3 = Q*n/1.49 s0.5
Area (A)= bd+z(d^2)
Z req = Q*n/1.49s0.5
R=Area/(b+2d((z^2)+1)^.5)
n= Vp (ft/sec) = Side Slope (z) = s (ft/ft) = Bottom Width (ft) = QB (cfs) =
Q (cfs) 10.0
Zreq 3.26
0.069 9 5 0.02 9 10.0 Flow Depth d (ft) 0.51
Ref 2, II-7
Zav = A*R2/3
6-inch diameter Rip Rap, Lined Channel Permissible Velocity for lining enter X for X:1 Outlet Slope (estimated) 6 * Barrel Diameter Peak Flow out of the barrel 25-yr Hydrograph
A (sf) 5.9
R (ft) 0.41
Zav 3.26
V (ft/sec) 1.7
Flow Depth = Tailwater, d (ft) = 0.51 0.5* Barrel Diameter (ft) = 0.75 Minimum Tailwater Conditions: d0.5*Diameter of Outlet Pipe Since the Tailwater is less than half of the diameter of the outlet, use Minimum Tailwater conditions. Barrel Diameter (ft) 1.5
Entrance (ft) 4.5
Length (ft) 10
Outlet Width (ft) 12
Median Rip Rap Size d50 0.3
Ref 1, 8.06.3
Selected Rip Rap Size (in) Class A
Conclusion The basin can contain the 10-yr storm and pass the 100-yr storm without overtopping the berm.
SB Dims SB 01.xlsx
I Job No. 06985-10570-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow
Diameter of Riser (in) = Circumference of Riser (in) = Height of Riser from bottom of barrel (in) = Vertical spacing between holes (in) = Water Stage increment (ft)
54 169.6 77 0 0.05
l
Computed: PAW Date: 12/31/14 Checked: EAW Date: 1/2/15 Sheet 1 Of 2
From Hydrograph center to center
Orifice Equation Q = Cd * A * (2 * g * h)0.5 Q = cfs, discharge Cd = 0.6 coefficient of discharge A = sf, cross sectional area
Ref 1, p III-11
ft/sec2, gravity g = 32.2 h = ft, driving head measured from the center of the pipe
Row 1 Holes per row 0 Hole Diameter (in) 0.75 Spacing edge to edge (in) #DIV/0! Inlet Area (sf) 0.000 Hole Stage (in) 0.50 Hole Stage (ft) 0.04
2 0 0.75 #DIV/0! 0.000 0.50 0.04
Perforations 3 4 0 0 0.75 0.75 #DIV/0! #DIV/0! 0.000 0.000 0.50 0.50 0.04 0.04
5 0 0.75 #DIV/0! 0.000 0.50 0.04
Skimmer 1
# of skimmers
Water Stage (ft) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Total Flow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.00 0.00 0.29 0.00 0.00 0.00 0.00 0.00 0.34 0.00 0.00 0.00 0.11 0.11 0.39 0.00 0.00 0.00 0.11 0.11 0.44 0.00 0.00 0.00 0.11 0.11 0.49 0.00 0.00 0.00 0.11 0.11 0.54 0.00 0.00 0.00 0.11 0.11 0.59 0.00 0.00 0.00 0.11 0.11 0.64 0.00 0.00 0.00 0.11 0.11 0.69 0.00 0.00 0.00 0.11 0.11 0.74 0.00 0.00 0.00 0.11 0.11 0.79 0.00 0.00 0.00 0.11 0.11 0.84 0.00 0.00 0.00 0.11 0.11 0.89 0.00 0.00 0.00 0.11 0.11 0.94 0.00 0.00 0.00 0.11 0.11 0.99 0.00 0.00 0.00 0.11 0.11 1.04 0.00 0.00 0.00 0.11 0.11 1.09 0.00 0.00 0.00 0.11 0.11 1.14 0.00 0.00 0.00 0.11 0.11 1.19 0.00 0.00 0.00 0.11 0.11 1.24 0.00 0.00 0.00 0.11 0.11 1.29 0.00 0.00 0.00 0.11 0.11 1.34 0.00 0.00 0.00 0.11 0.11 1.39 0.00 0.00 0.00 0.11 0.11 1.44 0.00 0.00 0.00 0.11 0.11 1.49 0.00 0.00 0.00 0.11 0.11 1.54 0.00 0.00 0.00 0.11 0.11 1.59 0.00 0.00 0.00 0.11 0.11 SB 01.xlsx
Pipe Perf-Skimmer
I Job No. 06985-10570-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow 1.64 1.69 1.74 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.59 2.64 2.69 2.74 2.79 2.84 2.89 2.94 2.99 3.04 3.09 3.14 3.19 3.24 3.29 3.34 3.39 3.44 3.49 3.54 3.59 3.64 3.69 3.74 3.79 3.84 3.89 3.94 3.99
SB 01.xlsx
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
l
Computed: PAW Date: 12/31/14 Checked: EAW Date: 1/2/15 Sheet 2 Of 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
Pipe Perf-Skimmer
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _1__of _2
Sediment Basin # 1
Qp =
32.86
Tp =
26.67
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
cfs
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
Phase 1
1 18 4.9 6.4 7.0 7.5 20 54 0
10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
289.40 290.00 290.50
283.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
INFLOW STORAGE STAGE Skimmer [cfs] [cu ft] [ft] Flow [cfs] 0.0 0 0.0 0.00 0.5 0 0.0 0.00 1.8 54 0.0 0.00 3.9 269 0.0 0.00 6.8 741 0.1 0.00 10.1 1,554 0.2 0.00 13.9 2,770 0.3 0.00 17.7 4,433 0.4 0.11 21.5 6,545 0.6 0.11 25.0 9,111 0.8 0.11 28.0 12,099 1.0 0.11 30.4 15,450 1.2 0.11 32.1 19,088 1.4 0.11 32.8 22,921 1.6 0.11 32.7 26,844 1.9 0.11 31.6 30,750 2.1 0.11 29.7 34,530 2.3 0.11 27.2 38,084 2.5 0.11 24.7 41,334 2.6 0.11 22.4 44,281 2.8 0.11 20.3 46,953 2.9 0.11 18.4 49,375 3.0 0.11 16.7 51,571 3.1 0.11 15.2 53,562 3.2 0.11 13.7 55,367 3.3 0.11 12.5 57,003 3.4 0.11 11.3 58,485 3.5 0.11 10.3 59,829 3.5 0.11 9.3 61,047 3.6 0.11 8.4 62,150 3.6 0.11 7.7 63,149 3.7 0.11 6.9 64,055 3.7 0.11 6.3 64,875 3.8 0.11 5.7 65,618 3.8 0.11 5.2 66,290 3.8 0.11 4.7 66,899 3.9 0.11 4.3 67,450 3.9 0.11 3.9 67,948 3.9 0.11 3.5 68,399 3.9 0.11 3.2 68,807 3.9 0.11 2.9 69,176 4.0 0.11 2.6 69,509 4.0 0.11
SB 01.xlsx
Colon
RISER CAPACIT Y [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
4.0E-03 2 100% 4.1 0.1 0.1 0.0
1.3 12,318
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 287.10 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11
Bound Discharge [cfs] 0.00 0.00 11.31 15.64 19.22 22.33 25.12 27.63 29.91 31.99 33.88 35.61 37.17 38.58 39.83 40.95 41.92 42.77 43.48 44.10 44.62 45.08 45.48 45.83 46.14 46.42 46.66 46.88 47.07 47.24 47.39 47.53 47.65 47.76 47.86 47.95 48.03 48.10 48.17 48.23 48.28 48.32
Estimate Settling d Surface Efficiency Area (sf) [%] N/A N/A 5,140 N/A 7,111 N/A 8,735 N/A 10,151 N/A 11,416 N/A 12,560 100% 13,594 100% 14,539 100% 15,401 100% 16,185 100% 16,895 100% 17,535 100% 18,107 100% 18,613 100% 19,056 100% 19,439 100% 19,765 100% 20,044 100% 20,284 100% 20,492 100% 20,674 100% 20,834 100% 20,974 100% 21,099 100% 21,209 100% 21,307 100% 21,394 100% 21,472 100% 21,542 100% 21,604 100% 21,660 100% 21,710 100% 21,755 100% 21,796 100% 21,832 100% 21,865 100% 21,894 100% 21,921 100% 21,944 100% 21,966 100%
SB 10-yr (P1) HG
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _2__of _2
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 01.xlsx
2.4 2.2 2.0 1.8 1.6 1.5 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
69,810 70,081 70,327 70,548 70,747 70,927 71,088 71,234 71,364 71,482 71,587 71,681 71,765 71,840 71,907 71,966 72,019 72,065 72,106 72,142 72,173 72,200 72,223 72,243 72,260 72,274 72,285 72,294 72,301 72,306 72,309 72,311 72,311 72,310 72,308 72,305 72,301 72,296 72,290 72,283 72,276 72,268 72,260 72,251 72,242 72,232 72,222 72,212 72,201 72,190 72,179 72,168 72,156 72,144 72,132 72,120 72,108 72,096 72,083 72,071 72,058 72,045
4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1 4.1
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
48.37 48.41 48.44 48.47 48.50 48.52 48.55 48.57 48.58 48.60 48.61 48.63 48.64 48.65 48.66 48.67 48.67 48.68 48.69 48.69 48.70 48.70 48.70 48.70 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.71 48.70 48.70 48.70 48.70 48.70 48.70 48.70 48.69 48.69 48.69 48.69 48.69 48.69 48.68 48.68 48.68 48.68 48.68
21,985 22,002 22,018 22,032 22,045 22,056 22,066 22,075 22,084 22,091 22,098 22,104 22,109 22,113 22,118 22,121 22,125 22,128 22,130 22,132 22,134 22,136 22,137 22,139 22,140 22,141 22,141 22,142 22,142 22,143 22,143 22,143 22,143 22,143 22,143 22,142 22,142 22,142 22,142 22,141 22,141 22,140 22,140 22,139 22,139 22,138 22,137 22,137 22,136 22,135 22,135 22,134 22,133 22,132 22,132 22,131 22,130 22,129 22,129 22,128 22,127 22,126
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #1 Colon Mine Phase 1 Hydrograph 10-Yr Storm
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: _1__of __2_
Qp = Tp =
43.09 35.03 2 1.0%
dT = Max of
or
Sediment Basin # 1
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
1 18 4.9 6.4 7 7.5 20 54 0
Phase 2 10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
289.40 290.00 290.50
283.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84
INFLOW STORAGE STAGE Skimmer [cfs] [cu ft] [ft] Flow [cfs] 0.0 0 0.0 0.00 0.3 0 0.0 0.00 1.4 41 0.0 0.00 3.0 206 0.0 0.00 5.3 571 0.1 0.00 8.1 1,209 0.2 0.00 11.3 2,181 0.3 0.00 14.9 3,539 0.4 0.11 18.6 5,309 0.5 0.11 22.5 7,530 0.7 0.11 26.3 10,214 0.9 0.11 30.0 13,358 1.1 0.11 33.4 16,941 1.3 0.11 36.4 20,933 1.5 0.11 38.9 25,288 1.8 0.11 40.9 29,948 2.0 0.11 42.3 34,846 2.3 0.11 43.0 39,909 2.6 0.11 43.0 45,055 2.8 0.11 42.3 50,202 3.1 0.11 41.0 55,268 3.3 0.11 39.0 60,173 3.5 0.11 36.5 64,842 3.8 0.11 33.9 69,213 4.0 0.11 31.5 73,270 4.1 0.11 29.2 77,036 4.3 0.11 27.2 80,532 4.5 0.11 25.2 83,776 4.6 0.11 23.4 86,788 4.7 0.11 21.7 89,583 4.9 0.11 20.2 92,177 5.0 0.11 18.7 94,585 5.1 0.11 17.4 96,819 5.2 0.11 16.1 98,893 5.3 0.11 15.0 100,818 5.3 0.11 13.9 102,603 5.4 0.11 12.9 104,260 5.5 0.11 12.0 105,798 5.5 0.11 11.1 107,225 5.6 0.11 10.3 108,548 5.7 0.11 9.6 109,776 5.7 0.11 8.9 110,915 5.8 0.11 8.3 111,972 5.8 0.11
SB 01.xlsx
Colon
RISER CAPACIT Y [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
WEIR FLOW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4.0E-03 2 100% 6.3 0.1 0.1 0.0
1.3 12,318
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 289.33 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
BARREL TOTAL Bound Estimated CAPACIT OUTFLOW Discharge Surface Y [cfs] [cfs] [cfs] Area (sf) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10.70 4,864 0.00 0.00 14.82 6,735 0.00 0.00 18.23 8,285 0.00 0.00 21.22 9,647 0.00 0.00 23.92 10,875 0.11 0.11 26.40 11,998 0.11 0.11 28.66 13,029 0.11 0.11 30.77 13,987 0.11 0.11 32.74 14,880 0.11 0.11 34.57 15,714 0.11 0.11 36.28 16,491 0.11 0.11 37.87 17,215 0.11 0.11 39.35 17,888 0.11 0.11 40.73 18,513 0.11 0.11 42.00 19,092 0.11 0.11 43.18 19,625 0.11 0.11 44.25 20,114 0.11 0.11 45.23 20,561 0.11 0.11 46.13 20,967 0.11 0.11 46.93 21,332 0.11 0.11 47.65 21,658 0.11 0.11 48.28 21,947 0.11 0.11 48.84 22,202 0.11 0.11 49.34 22,429 0.11 0.11 49.79 22,632 0.11 0.11 50.19 22,815 0.11 0.11 50.55 22,979 0.11 0.11 50.88 23,127 0.11 0.11 51.18 23,262 0.11 0.11 51.44 23,384 0.11 0.11 51.69 23,495 0.11 0.11 51.91 23,596 0.11 0.11 52.12 23,689 0.11 0.11 52.30 23,774 0.11 0.11 52.47 23,851 0.11 0.11 52.63 23,922 0.11 0.11 52.77 23,987 0.11 0.11 52.90 24,047 0.11 0.11 53.02 24,102 0.11 0.11 53.14 24,153 0.11 0.11 53.24 24,199
Settling Efficiency [%] N/A N/A N/A N/A N/A N/A N/A 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: _2__of __2_
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 01.xlsx
7.7 7.1 6.6 6.2 5.7 5.3 4.9 4.6 4.2 3.9 3.7 3.4 3.2 2.9 2.7 2.5 2.3 2.2 2.0 1.9 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 1.0 0.9 0.8 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1
112,952 113,861 114,704 115,486 116,211 116,883 117,506 118,083 118,618 119,114 119,574 119,999 120,394 120,759 121,097 121,409 121,699 121,967 122,214 122,443 122,655 122,850 123,031 123,198 123,351 123,493 123,624 123,744 123,855 123,957 124,051 124,137 124,215 124,288 124,354 124,414 124,469 124,519 124,565 124,606 124,644 124,678 124,708 124,735 124,760 124,781 124,801 124,817 124,832 124,844 124,855 124,864 124,872 124,877 124,882 124,885 124,887 124,888 124,888 124,887
5.8 5.9 5.9 6.0 6.0 6.0 6.0 6.1 6.1 6.1 6.1 6.1 6.2 6.2 6.2 6.2 6.2 6.2 6.2 6.2 6.2 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
53.33 53.42 53.50 53.57 53.64 53.70 53.76 53.82 53.87 53.91 53.95 53.99 54.03 54.06 54.09 54.12 54.15 54.17 54.19 54.21 54.23 54.25 54.27 54.28 54.29 54.31 54.32 54.33 54.34 54.35 54.36 54.36 54.37 54.38 54.38 54.39 54.39 54.40 54.40 54.41 54.41 54.41 54.42 54.42 54.42 54.42 54.42 54.43 54.43 54.43 54.43 54.43 54.43 54.43 54.43 54.43 54.43 54.43 54.43 54.43
24,242 24,282 24,318 24,351 24,382 24,411 24,437 24,462 24,484 24,505 24,524 24,542 24,558 24,573 24,587 24,600 24,612 24,623 24,633 24,643 24,651 24,659 24,666 24,673 24,680 24,685 24,691 24,695 24,700 24,704 24,708 24,711 24,715 24,717 24,720 24,723 24,725 24,727 24,729 24,730 24,732 24,733 24,734 24,736 24,736 24,737 24,738 24,739 24,739 24,740 24,740 24,741 24,741 24,741 24,741 24,742 24,742 24,742 24,742 24,742
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0 TOTAL OUTFLOW [cfs] INFLOW [cfs]
150
3.0
STAGE [ft] 100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE (ft)
FLOW (cfs)
Sediment Basin #1 Colon Mine Phase 2 Hydrograph 10-Yr Storm
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _1__of _2_
Qp = Tp = dT = Max of
or
53.49 35.39 2 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
1 18 4.9 6.4 7.0 7.5 20 54 0
Sediment Basin # 1
Phase 2 25 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
289.40 290.00 290.50
283.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 01.xlsx
Colon
INFLOW STORAGE STAGE Skimmer [cfs] [cu ft] [ft] Flow [cfs] 0.0 0 0.0 0.00 0.4 0 0.0 0.00 1.7 50 0.0 0.00 3.7 251 0.0 0.00 6.5 695 0.1 0.00 9.9 1,471 0.2 0.00 13.8 2,655 0.3 0.00 18.1 4,311 0.4 0.11 22.7 6,473 0.6 0.11 27.5 9,188 0.8 0.11 32.2 12,472 1.0 0.11 36.7 16,320 1.3 0.11 41.0 20,714 1.5 0.11 44.7 25,614 1.8 0.11 47.9 30,968 2.1 0.11 50.5 36,708 2.4 0.11 52.3 42,753 2.7 0.11 53.3 49,015 3.0 0.11 53.5 55,396 3.3 0.11 52.8 61,796 3.6 0.11 51.3 68,115 3.9 0.11 49.0 74,255 4.2 0.11 46.0 80,122 4.4 0.11 42.8 85,634 4.7 0.11 39.8 90,761 4.9 0.11 37.0 95,524 5.1 0.11 34.4 99,948 5.3 0.11 31.9 104,058 5.5 0.11 29.7 107,876 5.6 0.11 27.6 111,422 5.8 0.11 25.6 114,717 5.9 0.11 23.8 117,777 6.0 0.11 22.1 120,619 6.2 0.11 20.5 123,259 6.3 0.11 19.1 125,711 6.4 0.11 17.7 127,988 6.5 0.11 16.5 130,023 6.5 0.11 15.3 131,691 6.6 0.11 14.2 132,986 6.7 0.11 13.2 133,941 6.7 0.11 12.3 134,607 6.7 0.11 11.4 135,036 6.7 0.11 10.6 135,278 6.8 0.11
RISER CAPACIT Y [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.78 2.58 4.52 6.27 7.68 8.71 9.40 9.79
4.0E-03 2 97% 6.8 10.0 10.0 0.0
1.3 12,318
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 289.8 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFL [cfs] [cfs] OW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 0.11 0.11 0.00 20.30 0.78 0.00 20.44 2.58 0.00 20.56 4.52 0.00 20.65 6.27 0.00 20.72 7.68 0.00 20.76 8.71 0.00 20.79 9.40 0.00 20.81 9.79
Bound Discharge [cfs] 0.00 0.00 11.13 15.42 18.97 22.09 24.90 27.48 29.84 32.04 34.09 36.01 37.79 39.46 41.01 42.45 43.78 45.02 46.15 47.18 48.13 48.98 49.74 50.42 51.02 51.55 52.02 52.45 52.84 53.18 53.50 53.79 54.05 54.29 54.50 54.70 54.88 55.02 55.13 55.21 55.27 55.30 55.32
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 5,061 N/A 7,009 N/A 8,622 N/A 10,040 N/A 11,319 N/A 12,489 100% 13,564 100% 14,564 100% 15,496 100% 16,366 100% 17,178 100% 17,935 100% 18,640 100% 19,295 100% 19,901 100% 20,461 100% 20,976 100% 21,447 100% 21,876 100% 22,262 100% 22,609 100% 22,917 100% 23,189 100% 23,431 100% 23,647 100% 23,842 100% 24,017 100% 24,175 100% 24,318 100% 24,449 100% 24,568 100% 24,676 100% 24,775 100% 24,865 100% 24,945 100% 25,010 99% 25,059 99% 25,096 98% 25,121 98% 25,137 98% 25,146 97% SB 25-yr HG (P2)
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _2__of _2_
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 01.xlsx
9.9 9.2 8.5 7.9 7.3 6.8 6.3 5.9 5.5 5.1 4.7 4.4 4.1 3.8 3.5 3.3 3.0 2.8 2.6 2.4 2.3 2.1 2.0 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.9 0.8 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1
135,375 135,363 135,269 135,117 134,922 134,697 134,454 134,199 133,937 133,674 133,411 133,152 132,898 132,650 132,410 132,176 131,950 131,732 131,522 131,320 131,126 130,940 130,760 130,588 130,423 130,265 130,113 129,968 129,828 129,695 129,566 129,444 129,326 129,213 129,105 129,001 128,902 128,806 128,715 128,627 128,543 128,462 128,384 128,310 128,239 128,170 128,104 128,041 127,980 127,922 127,866 127,812 127,760 127,710 127,662 127,616 127,571 127,528 127,487 127,447 127,409
6.8 6.8 6.8 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
9.95 9.93 9.78 9.53 9.21 8.85 8.47 8.07 7.67 7.27 6.88 6.51 6.15 5.80 5.47 5.15 4.86 4.58 4.31 4.06 3.82 3.60 3.39 3.19 3.01 2.83 2.67 2.52 2.37 2.24 2.11 1.99 1.88 1.77 1.67 1.58 1.49 1.41 1.34 1.26 1.19 1.13 1.07 1.01 0.96 0.91 0.86 0.82 0.78 0.74 0.70 0.66 0.63 0.60 0.57 0.54 0.52 0.49 0.47 0.45 0.43
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
20.82 20.82 20.81 20.80 20.79 20.77 20.75 20.74 20.72 20.70 20.68 20.66 20.64 20.63 20.61 20.59 20.58 20.56 20.55 20.53 20.52 20.51 20.50 20.48 20.47 20.46 20.45 20.44 20.43 20.42 20.41 20.40 20.39 20.39 20.38 20.37 20.36 20.36 20.35 20.34 20.34 20.33 20.33 20.32 20.32 20.31 20.31 20.30 20.30 20.29 20.29 20.29 20.28 20.28 20.27 20.27 20.27 20.27 20.26 20.26 20.26
9.95 9.93 9.78 9.53 9.21 8.85 8.47 8.07 7.67 7.27 6.88 6.51 6.15 5.80 5.47 5.15 4.86 4.58 4.31 4.06 3.82 3.60 3.39 3.19 3.01 2.83 2.67 2.52 2.37 2.24 2.11 1.99 1.88 1.77 1.67 1.58 1.49 1.41 1.34 1.26 1.19 1.13 1.07 1.01 0.96 0.91 0.86 0.82 0.78 0.74 0.70 0.66 0.63 0.60 0.57 0.54 0.52 0.49 0.47 0.45 0.43
55.33 55.33 55.32 55.31 55.29 55.27 55.25 55.23 55.21 55.19 55.17 55.14 55.12 55.10 55.08 55.06 55.04 55.02 55.01 54.99 54.97 54.96 54.94 54.93 54.91 54.90 54.89 54.87 54.86 54.85 54.84 54.83 54.82 54.81 54.80 54.79 54.78 54.77 54.77 54.76 54.75 54.74 54.74 54.73 54.73 54.72 54.71 54.71 54.70 54.70 54.69 54.69 54.68 54.68 54.68 54.67 54.67 54.66 54.66 54.66 54.65
25,150 25,150 25,146 25,140 25,133 25,125 25,115 25,106 25,096 25,086 25,076 25,066 25,056 25,047 25,037 25,028 25,020 25,011 25,003 24,995 24,988 24,981 24,974 24,967 24,961 24,954 24,948 24,943 24,937 24,932 24,927 24,922 24,918 24,913 24,909 24,905 24,901 24,897 24,894 24,890 24,887 24,884 24,881 24,878 24,875 24,872 24,870 24,867 24,865 24,863 24,860 24,858 24,856 24,854 24,852 24,850 24,849 24,847 24,845 24,844 24,842
97% 97% 97% 97% 98% 98% 98% 98% 98% 98% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 25-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
OUTFLOW INFLOW [cfs]
200
STAGE [ft]
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #1 Colon Mine Phase 2 Hydrograph 25-Yr Storm
Computed By: PAW Date: 12/31/14 Checked By: EAW
Date: 1/2/15 Sheet: 1 of 2
Qp = Tp = dT = Max of
or
70.1 35.9 2 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
1 18 4.9 6.4 7.0 7.5 20 54 0
Sediment Basin # 1
Phase 2 100 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
289.40 290.00 290.50
283.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 01.xlsx
Colon
4.0E-03 2 88% 7.2 27.4 21.6 5.8
1.3 12,318
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 290.2 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
WEIR BARREL TOTAL Bound RISER INFLOW STORAGE STAGE Skimmer CAPACIT FLOW CAPACITY OUTFLOW Discharge [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] [cfs] [cfs] [cfs] [cfs] 0.0 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 0.5 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 2.1 64 0.0 0.00 0.00 0.00 0.00 0.00 11.69 4.7 319 0.1 0.00 0.00 0.00 0.00 0.00 16.19 8.2 885 0.1 0.00 0.00 0.00 0.00 0.00 19.92 12.6 1,874 0.2 0.00 0.00 0.00 0.00 0.00 23.20 17.6 3,383 0.4 0.11 0.11 0.00 0.11 0.11 26.16 23.2 5,482 0.5 0.11 0.11 0.00 0.11 0.11 28.85 29.1 8,248 0.7 0.11 0.11 0.00 0.11 0.11 31.35 35.2 11,724 1.0 0.11 0.11 0.00 0.11 0.11 33.67 41.3 15,932 1.2 0.11 0.11 0.00 0.11 0.11 35.83 47.2 20,872 1.5 0.11 0.11 0.00 0.11 0.11 37.85 52.7 26,521 1.8 0.11 0.11 0.00 0.11 0.11 39.74 57.7 32,834 2.2 0.11 0.11 0.00 0.11 0.11 41.50 62.0 39,747 2.5 0.11 0.11 0.00 0.11 0.11 43.14 65.5 47,175 2.9 0.11 0.11 0.00 0.11 0.11 44.67 68.0 55,022 3.3 0.11 0.11 0.00 0.11 0.11 46.08 69.6 63,174 3.7 0.11 0.11 0.00 0.11 0.11 47.40 70.1 71,510 4.1 0.11 0.11 0.00 0.11 0.11 48.60 69.5 79,905 4.4 0.11 0.11 0.00 0.11 0.11 49.71 67.8 88,229 4.8 0.11 0.11 0.00 0.11 0.11 50.72 65.2 96,357 5.2 0.11 0.11 0.00 0.11 0.11 51.64 61.6 104,168 5.5 0.11 0.11 0.00 0.11 0.11 52.46 57.5 111,551 5.8 0.11 0.11 0.00 0.11 0.11 53.20 53.5 118,437 6.1 0.11 0.11 0.00 0.11 0.11 53.85 49.7 124,842 6.3 0.11 0.11 0.00 0.11 0.11 54.43 46.3 130,798 6.6 0.11 3.43 0.00 20.50 3.43 54.95 43.0 135,939 6.8 0.11 10.90 0.00 20.86 10.90 55.38 40.0 139,795 6.9 0.11 18.09 0.00 21.12 18.09 55.69 37.2 142,428 7.0 0.11 23.63 0.37 21.29 21.66 55.90 34.6 144,298 7.1 0.11 27.84 2.10 21.42 23.51 56.05 32.2 145,632 7.2 0.11 30.97 3.81 21.51 25.32 56.16 30.0 146,460 7.2 0.11 32.97 5.03 21.56 26.59 56.22 27.9 146,865 7.2 0.11 33.96 5.67 21.59 27.26 56.25 25.9 146,939 7.2 0.11 34.14 5.79 21.59 27.38 56.26 24.1 146,765 7.2 0.11 33.71 5.51 21.58 27.09 56.25 22.4 146,408 7.2 0.11 32.84 4.95 21.56 26.51 56.22 20.9 145,918 7.2 0.11 31.66 4.22 21.53 25.75 56.18 19.4 145,332 7.1 0.11 30.26 3.40 21.49 24.88 56.13 18.1 144,675 7.1 0.11 28.71 2.55 21.44 23.99 56.08 16.8 143,962 7.1 0.11 27.07 1.72 21.40 23.12 56.03 15.6 143,203 7.1 0.11 25.35 0.97 21.35 22.31 55.97 14.5 142,399 7.0 0.11 23.57 0.35 21.29 21.64 55.90
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 5,315 N/A 7,361 N/A 9,056 N/A 10,545 N/A 11,889 100% 13,114 100% 14,248 100% 15,303 100% 16,286 100% 17,204 100% 18,062 100% 18,863 100% 19,609 100% 20,303 100% 20,948 100% 21,544 100% 22,093 100% 22,596 100% 23,056 100% 23,472 100% 23,847 100% 24,181 100% 24,477 100% 24,740 100% 24,975 100% 25,171 97% 25,315 93% 25,411 91% 25,478 90% 25,526 89% 25,555 88% 25,570 88% 25,572 88% 25,566 88% 25,553 88% 25,536 89% 25,515 89% 25,492 90% 25,466 90% 25,439 91% 25,410 91% SB 100-yr HG (P2)
Computed By: PAW Date: 12/31/14 Checked By: EAW
Date: 1/2/15 Sheet: 2 of 2
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 01.xlsx
13.5 12.6 11.7 10.9 10.1 9.4 8.7 8.1 7.6 7.0 6.5 6.1 5.7 5.3 4.9 4.6 4.2 3.9 3.7 3.4 3.2 3.0 2.7 2.6 2.4 2.2 2.1 1.9 1.8 1.7 1.5 1.4 1.3 1.2 1.2 1.1 1.0 0.9 0.9 0.8 0.7 0.7 0.6 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2
141,546 140,619 139,754 138,996 138,320 137,709 137,151 136,637 136,160 135,714 135,296 134,903 134,532 134,181 133,848 133,532 133,232 132,946 132,674 132,414 132,167 131,931 131,705 131,490 131,284 131,088 130,900 130,720 130,548 130,384 130,227 130,076 129,932 129,794 129,662 129,536 129,415 129,299 129,187 129,081 128,979 128,881 128,787 128,697 128,610 128,527 128,448 128,371 128,298 128,228 128,160 128,095 128,033 127,973 127,915 127,860 127,806 127,755 127,706 127,658
7.0 7.0 6.9 6.9 6.9 6.8 6.8 6.8 6.8 6.8 6.8 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.4 6.4 6.4
0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11
21.72 19.77 18.01 16.51 15.20 14.06 13.03 12.12 11.28 10.52 9.83 9.18 8.59 8.04 7.54 7.06 6.62 6.21 5.83 5.48 5.14 4.83 4.54 4.27 4.01 3.78 3.55 3.34 3.15 2.96 2.79 2.63 2.48 2.34 2.21 2.08 1.96 1.85 1.75 1.65 1.56 1.48 1.40 1.32 1.25 1.18 1.12 1.06 1.00 0.95 0.90 0.86 0.81 0.77 0.73 0.70 0.66 0.63 0.60 0.57
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
21.24 21.17 21.12 21.06 21.02 20.98 20.94 20.90 20.87 20.84 20.81 20.78 20.76 20.73 20.71 20.69 20.67 20.65 20.63 20.61 20.59 20.58 20.56 20.55 20.53 20.52 20.50 20.49 20.48 20.47 20.46 20.45 20.44 20.43 20.42 20.41 20.40 20.39 20.38 20.38 20.37 20.36 20.36 20.35 20.34 20.34 20.33 20.33 20.32 20.32 20.31 20.31 20.30 20.30 20.29 20.29 20.29 20.28 20.28 20.27
21.24 19.77 18.01 16.51 15.20 14.06 13.03 12.12 11.28 10.52 9.83 9.18 8.59 8.04 7.54 7.06 6.62 6.21 5.83 5.48 5.14 4.83 4.54 4.27 4.01 3.78 3.55 3.34 3.15 2.96 2.79 2.63 2.48 2.34 2.21 2.08 1.96 1.85 1.75 1.65 1.56 1.48 1.40 1.32 1.25 1.18 1.12 1.06 1.00 0.95 0.90 0.86 0.81 0.77 0.73 0.70 0.66 0.63 0.60 0.57
55.83 55.76 55.69 55.63 55.57 55.52 55.48 55.43 55.40 55.36 55.32 55.29 55.26 55.23 55.20 55.18 55.15 55.13 55.10 55.08 55.06 55.04 55.02 55.00 54.99 54.97 54.95 54.94 54.92 54.91 54.90 54.88 54.87 54.86 54.85 54.84 54.83 54.82 54.81 54.80 54.79 54.78 54.77 54.76 54.76 54.75 54.74 54.74 54.73 54.72 54.72 54.71 54.71 54.70 54.70 54.69 54.69 54.68 54.68 54.67
25,379 25,345 25,313 25,285 25,260 25,238 25,217 25,198 25,180 25,163 25,147 25,132 25,118 25,105 25,092 25,080 25,069 25,058 25,047 25,037 25,028 25,019 25,010 25,002 24,994 24,986 24,979 24,972 24,965 24,959 24,953 24,947 24,941 24,936 24,931 24,926 24,921 24,917 24,912 24,908 24,904 24,900 24,897 24,893 24,890 24,886 24,883 24,880 24,877 24,875 24,872 24,869 24,867 24,865 24,862 24,860 24,858 24,856 24,854 24,852
91% 92% 93% 94% 95% 95% 96% 96% 97% 97% 97% 98% 98% 98% 98% 98% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 100-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
OUTFLOW 250
INFLOW [cfs]
5.0
STAGE [ft] 200
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #1 Colon Mine Phase 2 Hydrograph 100-Yr Storm
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #2
Sheet: 1
Of:
Objective
Design the sediment basin to contain the 10-year storm and pass the 100-year storm without over topping the berm.
4
References 1. NC Erosion and Sediment Control Planning and Design Manual. 2. "Elements of Urban Stormwater Design" by H. Rooney Malcom, P.E. 3. VA Erosion and Sediment Control Handbook 3. NOAA Atlas 14, Volume 2, Version 3 Given Phase Storm Event (yrs) = Total Drainage Area A (ac) = Disturbed Area (ac) = Curve Number CN = Rainfall Depth P (in) = Peak Flow Qp (cfs) =
1 10 17.6 17.6 86 5.28 101.32
2 10 14.8 14.8 87 5.28 79.90
2 25 14.8 14.8 87 6.28 98.71
2 100 14.8 14.8 87 7.88 128.64
Hydrographs (24-hr rainfall) Hydrographs
Ref 3
Design Criteria Required sediment storage Required sediment storage
1,800 31,680
cf / acre of drainage cf (based on largest Phase)
Required Surface Area Required Surface Area (SF)
435 44,074
sf/cfs of the 10-yr storm peak flow (based on the largest Phase in cfs) of the 10-yr storm peak flow (based on the largest Phase)
Determine Shape of Basin: Measure the area of the Basin using AutoCADD. Calculate Volume of the Basin using Truncated Pyramid Method. Shape factor used in hydrographs basin depth may be gretaer than indicated below
Elevation (ft) 259 259 260 261 262 263 264 265
Depth (ft) 0 0 1 2 3 4 5 6
Area (sf) 0 37,790 40,921 44,109 47,355 50,658 54,018 57,435
Volume (cf) 0 39,345 42,505 45,722 48,997 52,329 55,718
Design Sediment Depth (ft) = 3 Sediment Storage (cf) = 127,573 Design Surface Area Depth (ft) = 3 Surface Area (sf) = 47,355
Cumulative Vol (cf) 0 39,345 81,850 127,573 176,570 228,899 284,617
Cumulative Vol (cy) 0 1,457 3,031 4,725 6,540 8,478 10,541
Required Sediment Storage Achieved
Required Surface Area Achieved
SB 02.xlsx SB Dims
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #2
Sheet: 2
Of:
4
Select Skimmer A. R. Jarrett Method D = [Q / (2,310 * (H 0.5)]0.5 D =Diameter of Orifice (inches) Q = Dewater Rate (cf/day) H = Head on orifice, varies based on skimmer size (ft) Skimmer Sizes (Inches) 1.5 2 2.5 3 4 5 6 8 Volume to Dewater (cf) = Number of Skimmers Days to Drain = Q each (cf/day) = Selected Skimmer Size (inches) = Head on Skimmer (feet) = Diameter of Orifice (inches) =
Head (ft) 0.125 0.167 0.167 0.250 0.333 0.333 0.417 0.500 127,573 2 5 12,757
assumed 0.15 cfs
4 0.333 3.1
Route the flow through the Basin Riser is not perforated, but skimmer is attached. S = (1000/CN) - 10 2 Runoff Depth Q* (inches) = (P-0.2S) /(P+0.8S) TP (min) = 60.5(Q*)A/QP/1.39
Phase Storm Event (yrs) = S= Runoff Depth Q* (inches) = Time to Peak T p (min) =
1 10 1.63 3.73 28.19
2 10 1.49 3.83 30.89
Ref 2, III-4
2 25 1.49 4.79 31.23
Determine Pond Storage Elevation (ZWater): Pick one point near max expected water surface and the other at the mid depth. Z1 (ft) = 3 S1 (cf)= 127,573 Z2 (ft) = 6 S2 (cf) = 284,617 1.2 b = ln(S2/S1)/ln(Z2/Z1) = b
KS = S2/Z2 =
2 100 1.49 6.33 31.71
Ref 2, III-8
35,760
SB 02.xlsx SB Dims
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #2
Sheet: 3
Of:
Determine Settling Velocity Conversion Factor =
3.281 ft/sec per m/sec
2
Gravitational Acceleration, g (m/s ) = Specific Gravity of soil (ss)= Kinematic Viscosity of water (v) = Diameter of the Design Particle d15 = Design Particle Settling Velocity
4
9.81 2.6 2 o 1.14E-06m / sec @ 20 C 40.00E-06 m
=
( g / 18 ) * [ ( ss
Route the Storm through the Basin using the Hydrograph Model Set Height of Emergency Spillway at (ft) = 6.00 Set Top of Dam at (ft) = 7.00 Emergency Spillway QE (cfs) = 100-Yr Storm QE (cfs) = 0.0 Cross Section = Trapezoid Channel Side Slope (z) = 5 n= 0.03 Vp (ft/sec) = 5.0 Allowable Shear Stress (psf) = 2.0 Bottom Width, b (ft) = 15
Ref 2, IV-11
- 1 ) / v ] d2 =
4.02E-03
ft/sec
See Hydrograph
(enter X for X:1) Grass Lined Permissible Velocity for lining Allowable Shear Stress for lining
Ref 2, II-7
Calculate Required Depth of Spillway: Normal-Depth Procedure AR2/3=Qn/1.49s0.5
Q=VA
Zreq=Qn/1.49s0.5
Area (A)= bd+z(d^2)
2/3
Zav=AR
Channel Slope ft/ft 0.01 0.02
Depth, d (ft) 0.00 0.00
A (sf) 0.00 0.00
Construct the channel to be :
R=Area/(b+2d((z^2)+1)^.5) Avg Shear Stress(T) = Kb*d*s*unit weight of water
Zreq 0.00 0.00 15 1.0 1%
R 0.00 0.00
Z avail 0.00 0.00
V (ft/sec) 0.0 0.0
T (psf) 0.0 0.0
ft, Bottom Width (measured at top of lining) ft, depth (measured at top of lining) slope
Anti-Seep Collar: Anti-Seep Collar Size = 2 * Barrel Dia Anti-Seep Collar Size (ft) = 4 Use Anti-Seep Collar Size (ft) = 4
x4
SB 02.xlsx SB Dims
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #2
Sheet: 4
Of:
Minimum Concrete Base for Riser: Diameter of Riser (in) = 60 Avg Density of Concrete (lbs/cf) = Density of Water (lbs/cf) =
From Hydrograph 87.6 62.4
Riser Displacement (cf) = 102.10 Convert cf to cy = Min Concrete Needed (cy) = Width & Length (ft) = Thickness (ft) = Anti-Vortex Device: Diameter of Riser (in) = Cylinder Diameter (in) = Cylinder Thickness (gage) = Cylinder Height (in) =
4
Pi * (DR/24)2 * Total Ht of Riser
27-1 2.69 6 2.0
60 90 14 29
From Hydrograph Ref 3, III-104, Table 3.14-D
Determine Tailwater conditions to size outlet apron Use Normal Depth Procedure (Manning's Eqn.) A*R2/3 = Q*n/1.49 s0.5
Area (A)= bd+z(d^2)
Z req = Q*n/1.49s0.5
R=Area/(b+2d((z^2)+1)^.5)
n= Vp (ft/sec) = Side Slope (z) = s (ft/ft) = Bottom Width (ft) = QB (cfs) =
Q (cfs) 3.8
Zreq 1.24
0.069 9 5 0.02 12 3.8 Flow Depth d (ft) 0.25
Ref 2, II-7
Zav = A*R2/3
6-inch diameter Rip Rap, Lined Channel Permissible Velocity for lining enter X for X:1 Outlet Slope (estimated) 6 * Barrel Diameter Peak Flow out of the barrel 25-yr Hydrograph
A (sf) 3.3
R (ft) 0.23
Zav 1.24
V (ft/sec) 1.1
Flow Depth = Tailwater, d (ft) = 0.25 0.5* Barrel Diameter (ft) = 1.00 Minimum Tailwater Conditions: d0.5*Diameter of Outlet Pipe Since the Tailwater is less than half of the diameter of the outlet, use Minimum Tailwater conditions. Barrel Diameter (ft) 2
Entrance (ft) 6
Length (ft) 10
Outlet Width (ft) 12
Median Rip Rap Size d50 0.3
Ref 1, 8.06.3
Selected Rip Rap Size (in) Class A
Conclusion The basin can contain the 10-yr storm and pass the 100-yr storm without overtopping the berm.
SB 02.xlsx SB Dims
I Job No. 06985-10570-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow
Diameter of Riser (in) = Circumference of Riser (in) = Height of Riser from bottom of barrel (in) = Vertical spacing between holes (in) = Water Stage increment (ft)
60 188.5 62 0 0.05
l
Computed: PAW Date: 12/31/14 Checked: EAW Date: 1/2/15 Sheet 1 Of 2
From Hydrograph center to center
Orifice Equation Q = Cd * A * (2 * g * h)0.5 Q = cfs, discharge Cd = 0.6 coefficient of discharge A = sf, cross sectional area
Ref 1, p III-11
ft/sec2, gravity g = 32.2 h = ft, driving head measured from the center of the pipe
Row Holes per row Hole Diameter (in) Spacing edge to edge (in) Inlet Area (sf) Hole Stage (in) Hole Stage (ft)
1 0 0.75
2 0 0.75
Perforations 3 0 0.75
4 0 0.75
5 0 0.75
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
Skimmer 2
# of skimmers
Water Stage (ft) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Total Flow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.00 0.00 0.29 0.00 0.00 0.00 0.00 0.00 0.34 0.00 0.00 0.00 0.30 0.30 0.39 0.00 0.00 0.00 0.30 0.30 0.44 0.00 0.00 0.00 0.30 0.30 0.49 0.00 0.00 0.00 0.30 0.30 0.54 0.00 0.00 0.00 0.30 0.30 0.59 0.00 0.00 0.00 0.30 0.30 0.64 0.00 0.00 0.00 0.30 0.30 0.69 0.00 0.00 0.00 0.30 0.30 0.74 0.00 0.00 0.00 0.30 0.30 0.79 0.00 0.00 0.00 0.30 0.30 0.84 0.00 0.00 0.00 0.30 0.30 0.89 0.00 0.00 0.00 0.30 0.30 0.94 0.00 0.00 0.00 0.30 0.30 0.99 0.00 0.00 0.00 0.30 0.30 1.04 0.00 0.00 0.00 0.30 0.30 1.09 0.00 0.00 0.00 0.30 0.30 1.14 0.00 0.00 0.00 0.30 0.30 1.19 0.00 0.00 0.00 0.30 0.30 1.24 0.00 0.00 0.00 0.30 0.30 1.29 0.00 0.00 0.00 0.30 0.30 1.34 0.00 0.00 0.00 0.30 0.30 1.39 0.00 0.00 0.00 0.30 0.30 1.44 0.00 0.00 0.00 0.30 0.30 1.49 0.00 0.00 0.00 0.30 0.30 1.54 0.00 0.00 0.00 0.30 0.30 1.59 0.00 0.00 0.00 0.30 0.30 Pipe Perf-Skimmer
SB 02.xlsx
I Job No. 06985-10570-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow 1.64 1.69 1.74 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.59 2.64 2.69 2.74 2.79 2.84 2.89 2.94 2.99 3.04 3.09 3.14 3.19 3.24 3.29 3.34 3.39 3.44 3.49 3.54 3.59 3.64 3.69 3.74 3.79 3.84 3.89 3.94 3.99
Pipe Perf-Skimmer
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
l
Computed: PAW Date: 12/31/14 Checked: EAW Date: 1/2/15 Sheet 2 Of 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
SB 02.xlsx
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _1__of __2_
Sediment Basin # 2
Qp =
101.32
Tp =
28.19
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
cfs
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
Phase 1
2 24 3.2 5.2 6.0 7.0 15 60 0
10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
264.20 265.00 266.00
259.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.3 0 0.0 0.00 0.00 4.9 150 0.0 0.00 0.00 10.9 744 0.0 0.00 0.00 18.8 2,053 0.1 0.00 0.00 28.3 4,312 0.2 0.00 0.00 38.9 7,712 0.3 0.00 0.00 50.1 12,383 0.4 0.30 0.30 61.3 18,326 0.6 0.30 0.30 72.0 25,613 0.7 0.30 0.30 81.6 34,183 1.0 0.30 0.30 89.7 43,907 1.2 0.30 0.30 95.9 54,603 1.4 0.30 0.30 99.8 66,039 1.7 0.30 0.30 101.3 77,946 2.0 0.30 0.30 100.3 90,032 2.2 0.30 0.30 96.8 101,997 2.5 0.30 0.30 91.1 113,546 2.7 0.30 0.30 83.6 124,405 2.9 0.30 0.30 76.3 134,368 3.1 0.30 0.30 69.5 143,448 3.3 0.30 0.30 63.4 151,721 3.5 0.30 0.30 57.8 159,259 3.6 0.30 0.30 52.7 166,127 3.8 0.30 0.30 48.1 172,384 3.9 0.30 0.30 43.8 178,083 4.0 0.30 0.30 40.0 183,274 4.1 0.30 0.30 36.5 188,001 4.2 0.30 0.30 33.3 192,306 4.3 0.30 0.30 30.3 196,225 4.4 0.30 0.30 27.7 199,793 4.4 0.30 0.30 25.2 203,040 4.5 0.30 0.30 23.0 205,995 4.5 0.30 0.30 21.0 208,684 4.6 0.30 0.30 19.1 211,129 4.6 0.30 0.30 17.4 213,353 4.7 0.30 0.30 15.9 215,374 4.7 0.30 0.30 14.5 217,211 4.8 0.30 0.30 13.2 218,881 4.8 0.30 0.30 12.1 220,396 4.8 0.30 0.30 11.0 221,772 4.8 0.30 0.30 10.0 223,021 4.9 0.30 0.30
SB 02.xlsx
Colon
4.0E-03 2 100% 5.1 0.6 0.6 0.0
1.2 35,760
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 264.06 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59
Bound Discharge [cfs] 0.00 0.00 43.22 53.74 61.71 68.28 73.90 78.83 83.15 87.03 90.52 93.66 96.48 99.02 101.28 103.28 105.06 106.60 107.94 109.08 110.05 110.89 111.63 112.27 112.84 113.34 113.79 114.18 114.53 114.85 115.13 115.38 115.61 115.82 116.00 116.17 116.32 116.45 116.57 116.68 116.78 116.87
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 19,647 N/A 24,429 N/A 28,050 N/A 31,035 N/A 33,592 N/A 35,830 100% 37,796 100% 39,559 100% 41,145 100% 42,573 100% 43,856 100% 45,007 100% 46,035 100% 46,948 100% 47,752 100% 48,455 100% 49,062 100% 49,580 100% 50,023 100% 50,407 100% 50,741 100% 51,033 100% 51,291 100% 51,519 100% 51,721 100% 51,901 100% 52,061 100% 52,204 100% 52,332 100% 52,448 100% 52,551 100% 52,644 100% 52,727 100% 52,803 100% 52,871 100% 52,932 100% 52,987 100% 53,037 100% 53,082 100% 53,122 100% SB 10-yr (P1) HG
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _2__of __2_
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 02.xlsx
9.1 8.3 7.6 6.9 6.3 5.8 5.3 4.8 4.4 4.0 3.6 3.3 3.0 2.8 2.5 2.3 2.1 1.9 1.7 1.6 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.8 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0
224,153 225,180 226,110 226,951 227,712 228,400 229,021 229,581 230,086 230,540 230,947 231,313 231,640 231,932 232,192 232,422 232,627 232,807 232,965 233,102 233,222 233,325 233,412 233,485 233,546 233,595 233,634 233,663 233,683 233,695 233,700 233,698 233,690 233,676 233,658 233,634 233,607 233,576 233,541 233,503 233,463 233,419 233,373 233,325 233,275 233,223 233,170 233,115 233,058 233,000 232,941 232,881 232,821 232,759 232,696 232,633 232,569 232,504 232,439 232,373 232,307 232,241
4.9 4.9 4.9 4.9 4.9 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59
116.95 117.02 117.09 117.15 117.20 117.25 117.29 117.33 117.37 117.40 117.43 117.45 117.47 117.49 117.51 117.53 117.54 117.55 117.57 117.58 117.58 117.59 117.60 117.60 117.61 117.61 117.61 117.61 117.62 117.62 117.62 117.62 117.62 117.61 117.61 117.61 117.61 117.61 117.61 117.60 117.60 117.60 117.59 117.59 117.59 117.58 117.58 117.58 117.57 117.57 117.56 117.56 117.56 117.55 117.55 117.54 117.54 117.53 117.53 117.53 117.52 117.52
53,159 53,192 53,222 53,249 53,273 53,295 53,315 53,333 53,349 53,363 53,376 53,387 53,398 53,407 53,415 53,422 53,428 53,434 53,439 53,443 53,447 53,450 53,453 53,455 53,457 53,459 53,460 53,461 53,461 53,462 53,462 53,462 53,462 53,461 53,461 53,460 53,459 53,458 53,457 53,456 53,455 53,453 53,452 53,450 53,449 53,447 53,445 53,444 53,442 53,440 53,438 53,436 53,435 53,433 53,431 53,429 53,427 53,425 53,423 53,421 53,418 53,416
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #2 Colon Mine Phase 1 Hydrograph 10-Yr Storm
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: _1__of _2_
Qp = Tp =
79.90 30.89 2 1.0%
dT = Max of
or
Sediment Basin # 2
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 3.2 5.2 6 7 15 60 0
Phase 2 10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
264.20 265.00 266.00
259.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 0.8 0 0.0 0.00 0.00 3.3 99 0.0 0.00 0.00 7.2 490 0.0 0.00 0.00 12.5 1,355 0.1 0.00 0.00 18.9 2,856 0.1 0.00 0.00 26.2 5,129 0.2 0.00 0.00 34.1 8,277 0.3 0.00 0.00 42.2 12,368 0.4 0.30 0.30 50.2 17,361 0.5 0.30 0.30 57.8 23,316 0.7 0.30 0.30 64.6 30,180 0.9 0.30 0.30 70.5 37,867 1.1 0.30 0.30 75.1 46,254 1.2 0.30 0.30 78.2 55,190 1.5 0.30 0.30 79.7 64,502 1.7 0.30 0.30 79.6 73,999 1.9 0.30 0.30 77.9 83,486 2.1 0.30 0.30 74.6 92,765 2.3 0.30 0.30 69.9 101,650 2.5 0.30 0.30 64.4 109,968 2.6 0.30 0.30 59.2 117,628 2.8 0.30 0.30 54.4 124,663 2.9 0.30 0.30 50.0 131,124 3.1 0.30 0.30 46.0 137,059 3.2 0.30 0.30 42.3 142,508 3.3 0.30 0.30 38.9 147,512 3.4 0.30 0.30 35.7 152,106 3.5 0.30 0.30 32.9 156,324 3.6 0.30 0.30 30.2 160,196 3.7 0.30 0.30 27.8 163,749 3.7 0.30 0.30 25.5 167,010 3.8 0.30 0.30 23.5 170,002 3.8 0.30 0.30 21.6 172,746 3.9 0.30 0.30 19.8 175,264 3.9 0.30 0.30 18.2 177,572 4.0 0.30 0.30 16.8 179,689 4.0 0.30 0.30 15.4 181,628 4.1 0.30 0.30 14.2 183,406 4.1 0.30 0.30 13.0 185,034 4.1 0.30 0.30 12.0 186,525 4.2 0.30 0.30 11.0 187,891 4.2 0.30 0.30 10.1 189,140 4.2 0.30 0.30
SB 02.xlsx
Colon
WEIR FLOW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4.0E-03 2 100% 4.4 0.6 0.6 0.0
1.2 35,760
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 263.44 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
BARREL TOTAL Bound Estimated CAPACIT OUTFLOW Discharge Surface Y [cfs] [cfs] [cfs] Area (sf) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 40.82 18,555 0.00 0.00 50.77 23,077 0.00 0.00 58.32 26,507 0.00 0.00 64.55 29,341 0.00 0.00 69.91 31,776 0.00 0.00 74.62 33,917 0.30 0.59 78.81 35,825 0.30 0.59 82.54 37,518 0.30 0.59 85.92 39,056 0.30 0.59 89.00 40,453 0.30 0.59 91.79 41,723 0.30 0.59 94.33 42,876 0.30 0.59 96.62 43,920 0.30 0.59 98.70 44,863 0.30 0.59 100.56 45,710 0.30 0.59 102.23 46,467 0.30 0.59 103.71 47,139 0.30 0.59 105.01 47,730 0.30 0.59 106.14 48,245 0.30 0.59 107.12 48,689 0.30 0.59 107.97 49,076 0.30 0.59 108.71 49,415 0.30 0.59 109.37 49,714 0.30 0.59 109.95 49,978 0.30 0.59 110.47 50,214 0.30 0.59 110.93 50,424 0.30 0.59 111.35 50,612 0.30 0.59 111.72 50,781 0.30 0.59 112.05 50,933 0.30 0.59 112.35 51,070 0.30 0.59 112.63 51,194 0.30 0.59 112.87 51,306 0.30 0.59 113.10 51,407 0.30 0.59 113.30 51,499 0.30 0.59 113.48 51,582 0.30 0.59 113.65 51,657 0.30 0.59 113.80 51,726 0.30 0.59 113.93 51,788 0.30 0.59 114.06 51,845 0.30 0.59 114.17 51,896 0.30 0.59 114.28 51,943
Settling Efficiency [%] N/A N/A N/A N/A N/A N/A N/A N/A 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: _2__of _2_
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 02.xlsx
9.3 8.5 7.9 7.2 6.6 6.1 5.6 5.2 4.7 4.4 4.0 3.7 3.4 3.1 2.9 2.6 2.4 2.2 2.0 1.9 1.7 1.6 1.5 1.3 1.2 1.1 1.0 1.0 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
190,282 191,327 192,282 193,154 193,949 194,675 195,337 195,939 196,487 196,985 197,437 197,847 198,218 198,554 198,856 199,129 199,374 199,593 199,789 199,963 200,118 200,254 200,374 200,478 200,568 200,645 200,710 200,764 200,809 200,843 200,870 200,888 200,899 200,904 200,902 200,895 200,883 200,866 200,845 200,820 200,791 200,758 200,723 200,684 200,643 200,600 200,554 200,507 200,457 200,406 200,353 200,299 200,243 200,186 200,128 200,069 200,009 199,949 199,887 199,824
4.2 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59 0.59
114.37 114.45 114.53 114.60 114.67 114.73 114.78 114.83 114.87 114.91 114.95 114.98 115.01 115.03 115.06 115.08 115.10 115.12 115.13 115.14 115.16 115.17 115.18 115.19 115.19 115.20 115.20 115.21 115.21 115.21 115.22 115.22 115.22 115.22 115.22 115.22 115.22 115.22 115.21 115.21 115.21 115.21 115.20 115.20 115.20 115.19 115.19 115.19 115.18 115.18 115.18 115.17 115.17 115.16 115.16 115.15 115.15 115.14 115.14 115.13
51,986 52,025 52,060 52,092 52,121 52,148 52,172 52,194 52,214 52,232 52,248 52,263 52,276 52,288 52,299 52,309 52,318 52,325 52,332 52,339 52,344 52,349 52,353 52,357 52,360 52,363 52,365 52,367 52,369 52,370 52,371 52,371 52,372 52,372 52,372 52,372 52,371 52,371 52,370 52,369 52,368 52,367 52,366 52,364 52,363 52,361 52,360 52,358 52,356 52,354 52,352 52,351 52,349 52,347 52,344 52,342 52,340 52,338 52,336 52,334
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0 TOTAL OUTFLOW [cfs] INFLOW [cfs]
150
3.0
STAGE [ft] 100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE (ft)
FLOW (cfs)
Sediment Basin #2 Colon Mine Phase 2 Hydrograph 10-Yr Storm
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _1__of __2__
Qp = Tp = dT = Max of
or
98.71 31.23 2 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 3.2 5.2 6.0 7.0 15 60 0
Sediment Basin # 2
Phase 2 25 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
264.20 265.00 266.00
259.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 02.xlsx
Colon
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.0 0 0.0 0.00 0.00 3.9 119 0.0 0.00 0.00 8.7 592 0.0 0.00 0.00 15.1 1,639 0.1 0.00 0.00 22.9 3,455 0.1 0.00 0.00 31.8 6,208 0.2 0.00 0.00 41.4 10,024 0.3 0.00 0.00 51.3 14,988 0.5 0.30 0.30 61.1 21,069 0.6 0.30 0.30 70.4 28,328 0.8 0.30 0.30 78.9 36,708 1.0 0.30 0.30 86.2 46,108 1.2 0.30 0.30 92.0 56,384 1.5 0.30 0.30 96.1 67,357 1.7 0.30 0.30 98.3 78,821 2.0 0.30 0.30 98.6 90,550 2.2 0.30 0.30 96.8 102,307 2.5 0.30 0.30 93.1 113,853 2.7 0.30 0.30 87.7 124,958 2.9 0.30 0.30 81.0 135,412 3.2 0.30 0.30 74.6 145,066 3.4 0.30 0.30 68.6 153,944 3.5 0.30 0.30 63.1 162,107 3.7 0.30 0.30 58.1 169,612 3.8 0.30 0.30 53.5 176,512 4.0 0.30 0.30 49.2 182,855 4.1 0.30 0.30 45.3 188,686 4.2 0.30 0.30 41.6 194,045 4.3 0.30 0.30 38.3 198,971 4.4 0.30 0.30 35.3 203,497 4.5 0.30 0.30 32.4 207,656 4.6 0.30 0.30 29.8 211,478 4.6 0.30 0.30 27.5 214,988 4.7 0.30 0.30 25.3 218,212 4.8 0.30 0.30 23.2 221,173 4.8 0.30 0.30 21.4 223,892 4.9 0.30 0.30 19.7 226,388 4.9 0.30 0.30 18.1 228,679 5.0 0.30 0.30 16.7 230,782 5.0 0.30 0.30 15.3 232,710 5.0 0.30 0.30 14.1 234,479 5.1 0.30 0.30 13.0 236,101 5.1 0.30 0.30
4.0E-03 2 100% 5.3 3.8 3.8 0.0
1.2 35,760
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 264.3 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFL [cfs] [cfs] OW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59 0.00 0.30 0.59
Bound Discharge [cfs] 0.00 0.00 41.89 52.10 59.85 66.25 71.75 76.59 80.90 84.75 88.23 91.40 94.29 96.91 99.28 101.43 103.37 105.10 106.64 108.00 109.19 110.22 111.11 111.90 112.59 113.20 113.75 114.24 114.67 115.07 115.42 115.74 116.03 116.29 116.52 116.74 116.93 117.11 117.27 117.42 117.55 117.67 117.78
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 19,041 N/A 23,682 N/A 27,203 N/A 30,112 N/A 32,614 N/A 34,813 N/A 36,775 100% 38,521 100% 40,106 100% 41,547 100% 42,857 100% 44,048 100% 45,128 100% 46,105 100% 46,984 100% 47,772 100% 48,473 100% 49,092 100% 49,632 100% 50,100 100% 50,507 100% 50,863 100% 51,178 100% 51,457 100% 51,705 100% 51,926 100% 52,125 100% 52,303 100% 52,464 100% 52,608 100% 52,739 100% 52,858 100% 52,965 100% 53,062 100% 53,151 100% 53,231 100% 53,304 100% 53,371 100% 53,431 100% 53,486 100% 53,536 100% SB 25-yr HG (P2)
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _2__of __2__
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 02.xlsx
11.9 11.0 10.1 9.3 8.6 7.9 7.2 6.7 6.1 5.6 5.2 4.8 4.4 4.0 3.7 3.4 3.2 2.9 2.7 2.5 2.3 2.1 1.9 1.8 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.8 0.7 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
237,588 238,951 240,199 241,341 242,384 243,298 244,074 244,716 245,234 245,640 245,948 246,170 246,319 246,407 246,443 246,436 246,394 246,324 246,231 246,121 245,996 245,861 245,719 245,570 245,419 245,265 245,111 244,957 244,804 244,653 244,505 244,359 244,216 244,077 243,941 243,808 243,679 243,554 243,432 243,314 243,199 243,088 242,980 242,875 242,773 242,675 242,579 242,486 242,396 242,308 242,222 242,139 242,059 241,980 241,903 241,828 241,755 241,683 241,613 241,544 241,476
5.1 5.2 5.2 5.2 5.2 5.2 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
0.30 0.30 0.30 0.31 0.47 0.71 0.95 1.18 1.38 1.54 1.67 1.77 1.83 1.87 1.89 1.89 1.87 1.84 1.80 1.75 1.69 1.63 1.57 1.51 1.45 1.39 1.33 1.27 1.21 1.15 1.10 1.05 1.00 0.95 0.90 0.86 0.82 0.78 0.75 0.71 0.68 0.65 0.62 0.59 0.56 0.54 0.52 0.50 0.48 0.46 0.44 0.42 0.41 0.39 0.38 0.37 0.36 0.34 0.33 0.33 0.32
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.30 0.30 0.30 30.96 31.04 31.10 31.15 31.19 31.23 31.26 31.28 31.29 31.30 31.31 31.31 31.31 31.31 31.30 31.30 31.29 31.28 31.27 31.26 31.25 31.24 31.23 31.22 31.21 31.20 31.19 31.18 31.17 31.16 31.15 31.14 31.13 31.12 31.11 31.11 31.10 31.09 31.08 31.08 31.07 31.06 31.05 31.05 31.04 31.04 31.03 31.02 31.02 31.01 31.01 31.00 31.00 30.99 30.99 30.98 30.98 30.97
0.59 0.59 0.59 0.61 0.95 1.41 1.90 2.35 2.75 3.08 3.34 3.54 3.67 3.75 3.78 3.77 3.74 3.67 3.59 3.49 3.38 3.27 3.15 3.02 2.90 2.78 2.65 2.53 2.42 2.31 2.20 2.09 1.99 1.90 1.81 1.72 1.64 1.56 1.49 1.42 1.36 1.29 1.24 1.18 1.13 1.08 1.03 0.99 0.95 0.91 0.88 0.84 0.81 0.78 0.76 0.73 0.71 0.69 0.67 0.65 0.64
117.88 117.97 118.06 118.13 118.20 118.26 118.31 118.36 118.39 118.42 118.44 118.45 118.46 118.47 118.47 118.47 118.47 118.46 118.46 118.45 118.44 118.43 118.42 118.41 118.40 118.39 118.38 118.37 118.36 118.35 118.34 118.33 118.32 118.31 118.31 118.30 118.29 118.28 118.27 118.26 118.26 118.25 118.24 118.23 118.23 118.22 118.22 118.21 118.20 118.20 118.19 118.19 118.18 118.18 118.17 118.17 118.16 118.16 118.15 118.15 118.14
53,582 53,624 53,662 53,697 53,728 53,756 53,779 53,798 53,814 53,826 53,835 53,842 53,846 53,849 53,850 53,850 53,849 53,846 53,844 53,840 53,837 53,833 53,828 53,824 53,819 53,815 53,810 53,806 53,801 53,797 53,792 53,788 53,783 53,779 53,775 53,771 53,767 53,764 53,760 53,756 53,753 53,750 53,746 53,743 53,740 53,737 53,734 53,731 53,729 53,726 53,723 53,721 53,719 53,716 53,714 53,712 53,709 53,707 53,705 53,703 53,701
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 25-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
OUTFLOW INFLOW [cfs]
200
STAGE [ft]
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #2 Colon Mine Phase 2 Hydrograph 25-Yr Storm
Computed By: PAW Date: 12/31/14 Checked By: EAW
Date: 1/2/15
Sheet: _1__of __2_
Qp = Tp = dT = Max of
or
128.6 31.7 2 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 3.2 5.2 6.0 7.0 15 60 0
Sediment Basin # 2
Phase 2 100 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
264.20 265.00 266.00
259.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 02.xlsx
Colon
4.0E-03 2 94% 5.7 36.2 36.2 0.0
1.2 35,760
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 264.7 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
WEIR BARREL TOTAL Bound RISER INFLOW STORAGE STAGE Skimmer CAPACIT FLOW CAPACITY OUTFLOW Discharge [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] [cfs] [cfs] [cfs] [cfs] 0.0 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 1.3 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 5.0 151 0.0 0.00 0.00 0.00 0.00 0.00 43.25 11.0 749 0.0 0.00 0.00 0.00 0.00 0.00 53.79 19.2 2,073 0.1 0.00 0.00 0.00 0.00 0.00 61.79 29.1 4,373 0.2 0.00 0.00 0.00 0.00 0.00 68.41 40.3 7,860 0.3 0.00 0.00 0.00 0.00 0.00 74.09 52.6 12,701 0.4 0.30 0.30 0.00 0.30 0.59 79.10 65.2 18,937 0.6 0.30 0.30 0.00 0.30 0.59 83.52 77.9 26,695 0.8 0.30 0.30 0.00 0.30 0.59 87.52 90.0 35,969 1.0 0.30 0.30 0.00 0.30 0.59 91.15 101.1 46,697 1.3 0.30 0.30 0.00 0.30 0.59 94.45 110.8 58,757 1.5 0.30 0.30 0.00 0.30 0.59 97.45 118.6 71,978 1.8 0.30 0.30 0.00 0.30 0.59 100.18 124.3 86,141 2.1 0.30 0.30 0.00 0.30 0.59 102.67 127.7 100,990 2.5 0.30 0.30 0.00 0.30 0.59 104.91 128.6 116,245 2.8 0.30 0.30 0.00 0.30 0.59 106.94 127.0 131,608 3.1 0.30 0.30 0.00 0.30 0.59 108.77 122.9 146,777 3.4 0.30 0.30 0.00 0.30 0.59 110.40 116.6 161,457 3.7 0.30 0.30 0.00 0.30 0.59 111.84 108.3 175,373 3.9 0.30 0.30 0.00 0.30 0.59 113.10 99.8 188,302 4.2 0.30 0.30 0.00 0.30 0.59 114.21 91.9 200,207 4.4 0.30 0.30 0.00 0.30 0.59 115.16 84.7 211,170 4.6 0.30 0.30 0.00 0.30 0.59 116.00 78.0 221,264 4.8 0.30 0.30 0.00 0.30 0.59 116.74 71.9 230,557 5.0 0.30 0.30 0.00 0.30 0.59 117.40 66.2 239,114 5.2 0.30 0.30 0.00 0.30 0.59 117.98 61.0 246,992 5.3 0.30 2.14 0.00 31.35 4.29 118.51 56.2 253,800 5.4 0.30 6.18 0.00 31.80 12.37 118.95 51.8 259,062 5.5 0.30 10.20 0.00 32.15 20.40 119.28 47.7 262,830 5.6 0.30 13.47 0.00 32.40 26.93 119.51 44.0 265,324 5.6 0.30 15.79 0.00 32.56 31.58 119.67 40.5 266,810 5.7 0.30 17.23 0.00 32.65 34.46 119.76 37.3 267,535 5.7 0.30 17.95 0.00 32.70 35.90 119.80 34.4 267,705 5.7 0.30 18.12 0.00 32.71 36.24 119.81 31.7 267,482 5.7 0.30 17.89 0.00 32.70 35.79 119.80 29.2 266,988 5.7 0.30 17.40 0.00 32.66 34.81 119.77 26.9 266,312 5.7 0.30 16.74 0.00 32.62 33.48 119.73 24.8 265,519 5.7 0.30 15.98 0.00 32.57 31.95 119.68 22.8 264,657 5.6 0.30 15.16 0.00 32.51 30.31 119.63 21.0 263,757 5.6 0.30 14.32 0.00 32.46 28.63 119.57 19.4 262,844 5.6 0.30 13.48 0.00 32.40 26.96 119.51 17.8 261,933 5.6 0.30 12.66 0.00 32.34 25.32 119.46
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 19,658 N/A 24,451 N/A 28,087 N/A 31,093 N/A 33,679 N/A 35,954 100% 37,965 100% 39,783 100% 41,432 100% 42,932 100% 44,296 100% 45,538 100% 46,666 100% 47,688 100% 48,611 100% 49,440 100% 50,180 100% 50,836 100% 51,411 100% 51,912 100% 52,347 100% 52,729 100% 53,065 100% 53,363 100% 53,629 100% 53,866 100% 54,066 99% 54,218 98% 54,324 96% 54,394 95% 54,436 94% 54,456 94% 54,461 94% 54,454 94% 54,441 94% 54,422 94% 54,400 95% 54,376 95% 54,350 96% 54,325 96% 54,299 96% SB 100-yr HG (P2)
Computed By: PAW Date: 12/31/14 Checked By: EAW
Date: 1/2/15
Sheet: _2__of __2_
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 02.xlsx
16.4 15.1 14.0 12.9 11.8 10.9 10.0 9.3 8.5 7.9 7.2 6.7 6.1 5.7 5.2 4.8 4.4 4.1 3.8 3.5 3.2 2.9 2.7 2.5 2.3 2.1 1.9 1.8 1.7 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1
261,035 260,158 259,307 258,485 257,693 256,932 256,203 255,505 254,838 254,201 253,592 253,012 252,458 251,930 251,426 250,946 250,488 250,052 249,635 249,238 248,860 248,499 248,154 247,825 247,511 247,212 246,926 246,652 246,391 246,142 245,904 245,676 245,457 245,249 245,049 244,858 244,675 244,499 244,331 244,169 244,015 243,866 243,723 243,586 243,454 243,327 243,205 243,087 242,974 242,865 242,759 242,657 242,559 242,464 242,371 242,282 242,196 242,112 242,030 241,951
5.6 5.6 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2
0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30
11.87 11.12 10.40 9.73 9.09 8.49 7.93 7.41 6.92 6.46 6.04 5.64 5.27 4.93 4.61 4.31 4.03 3.77 3.53 3.31 3.10 2.90 2.72 2.55 2.40 2.25 2.11 1.99 1.87 1.76 1.65 1.56 1.47 1.38 1.30 1.23 1.16 1.10 1.04 0.98 0.93 0.88 0.83 0.79 0.75 0.71 0.68 0.65 0.62 0.59 0.56 0.54 0.51 0.49 0.47 0.45 0.43 0.42 0.40 0.39
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
32.28 32.22 32.17 32.11 32.06 32.01 31.96 31.92 31.87 31.83 31.79 31.75 31.71 31.68 31.65 31.61 31.58 31.55 31.53 31.50 31.47 31.45 31.43 31.40 31.38 31.36 31.34 31.33 31.31 31.29 31.27 31.26 31.24 31.23 31.22 31.20 31.19 31.18 31.17 31.16 31.15 31.14 31.13 31.12 31.11 31.10 31.09 31.08 31.08 31.07 31.06 31.05 31.05 31.04 31.03 31.03 31.02 31.02 31.01 31.01
23.74 22.24 20.80 19.45 18.18 16.98 15.86 14.82 13.84 12.93 12.08 11.29 10.55 9.86 9.22 8.62 8.06 7.55 7.07 6.62 6.20 5.81 5.45 5.11 4.79 4.50 4.23 3.97 3.73 3.51 3.30 3.11 2.93 2.76 2.61 2.46 2.32 2.19 2.07 1.96 1.86 1.76 1.67 1.58 1.50 1.43 1.36 1.29 1.23 1.17 1.12 1.07 1.02 0.98 0.94 0.90 0.87 0.83 0.80 0.77
119.40 119.35 119.29 119.24 119.19 119.14 119.10 119.05 119.01 118.97 118.93 118.90 118.86 118.83 118.79 118.76 118.73 118.70 118.68 118.65 118.63 118.60 118.58 118.56 118.54 118.52 118.50 118.48 118.47 118.45 118.43 118.42 118.41 118.39 118.38 118.37 118.35 118.34 118.33 118.32 118.31 118.30 118.29 118.28 118.27 118.26 118.26 118.25 118.24 118.23 118.23 118.22 118.21 118.21 118.20 118.20 118.19 118.18 118.18 118.17
54,274 54,249 54,225 54,201 54,178 54,157 54,136 54,116 54,096 54,078 54,060 54,043 54,027 54,012 53,997 53,983 53,970 53,957 53,945 53,933 53,922 53,911 53,901 53,891 53,882 53,873 53,864 53,856 53,848 53,841 53,834 53,827 53,821 53,814 53,808 53,803 53,797 53,792 53,787 53,782 53,777 53,773 53,769 53,765 53,761 53,757 53,753 53,750 53,746 53,743 53,740 53,737 53,734 53,731 53,728 53,725 53,723 53,720 53,718 53,715
97% 97% 97% 98% 98% 98% 98% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 100-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
OUTFLOW 250
INFLOW [cfs]
5.0
STAGE [ft] 200
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #2 Colon Mine Phase 2 Hydrograph 100-Yr Storm
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #3
Sheet: 1
Of: 4
Objective
Design the temporary sediment basin to contain the 25-year storm.
References 1. NC Erosion and Sediment Control Planning and Design Manual. 2. "Elements of Urban Stormwater Design" by H. Rooney Malcom, P.E. 3. NOAA Atlas 14, Volume 2, Version 3 4. VA Erosion and Sediment Control Handbook Given Phase Storm Event (yrs) = Total Drainage Area A (ac) = Disturbed Area (ac) = Curve Number CN = Rainfall Depth P (in) = Peak Flow Qp (cfs) =
1 10 3.1 3.1 91 5.28 20.57
1 25 3.1 3.1 91 6.28 24.96
Hydrographs (24-hr rainfall) Hydrographs
Ref 3
Design Criteria Required sediment storage Required sediment storage
1,800 5,580
cf / acre of drainage cf
Required Surface Area Required Surface Area (SF)
435 8,948
sf/cfs of the 10-yr storm peak flow (based on the largest Phase in cfs) of the 10-yr storm peak flow (based on the largest Phase)
Determine Shape of Basin: Measure the area of the Basin using AutoCADD. Calculate Volume of the Basin using Truncated Pyramid Method. Shape factor used in hydrographs basin depth may be gretaer than indicated below
Elevation (ft) 244 244 245 246 247 248 249 250
Depth (ft) 0 0 1 2 3 4 5 6
Area (sf) 0 4,877 6,254 7,709 9,244 10,857 12,549 14,321
Volume (cf) 0 5,551 6,969 8,465 10,040 11,693 13,425
Design Sediment Depth (ft) = 3 Sediment Storage (cf) = 20,985 Design Surface Area Depth (ft) = 3 Surface Area (sf) = 9,244
Cumulative Vol (cf) 0 5,551 12,520 20,985 31,025 42,717 56,143
Cumulative Vol (cy) 0 206 464 777 1,149 1,582 2,079
Required Sediment Storage Achieved
Required Surface Area Achieved
SB Dims SB 03
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #3
Sheet: 2
Of: 4
Select Skimmer A. R. Jarrett Method D = [Q / (2,310 * (H 0.5)]0.5 D =Diameter of Orifice (inches) Q = Dewater Rate (cf/day) H = Head on orifice, varies based on skimmer size (ft) Skimmer Sizes (Inches) 1.5 2 2.5 3 4 5 6 8
Head (ft) 0.125 0.167 0.167 0.250 0.333 0.333 0.417 0.500
Volume to Dewater (cf) = Number of Skimmers Days to Drain = Q each (cf/day) =
20,985 1 5 4,197
Selected Skimmer Size (inches) = Head on Skimmer (feet) = Diameter of Orifice (inches) =
2.5 0.208 2.0
assumed 0.05 cfs
Route the flow through the Basin Riser is not perforated, but skimmer is attached. S = (1000/CN) - 10 2 Runoff Depth Q* (inches) = (P-0.2S) /(P+0.8S) TP (min) = 60.5(Q*)A/QP/1.39
Phase Storm Event (yrs) = S= Runoff Depth Q* (inches) = Time to Peak T p (min) =
1 10 0.99 4.25 27.91
1 25 0.99 5.23 28.28
Determine Pond Storage Elevation (Z Water): Pick one point near max expected water surface and the other at the mid depth. Z1 (ft) = 3 S1 (cf)= 20,985 Z2 (ft) = 6 S2 (cf) = 56,143 b = ln(S2/S1)/ln(Z2/Z1) = 1.4 b
KS = S2/Z2 =
Ref 2, III-4
Ref 2, III-8
4,411
SB Dims SB 03
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #3
Sheet: 3
Of: 4
Determine Settling Velocity Conversion Factor =
3.281 ft/sec per m/sec
2
Gravitational Acceleration, g (m/s ) = Specific Gravity of soil (ss)=
9.81 2.6 2 o 1.14E-06m / sec @ 20 C 40.00E-06 m
Kinematic Viscosity of water (v) = Diameter of the Design Particle d 15 = Design Particle Settling Velocity
=
( g / 18 ) * [ ( s s
Route the Storm through the Basin using the Hydrograph Model Set Height of Emergency Spillway at (ft) = 5.00 Set Top of Dam at (ft) = 6.00
Ref 2, IV-11
- 1 ) / v ] d2 =
4.02E-03
ft/sec
See Hydrograph
Anti-Seep Collar: Anti-Seep Collar Size = 2 * Barrel Dia Anti-Seep Collar Size (ft) = 2 Use Anti-Seep Collar Size (ft) = 2 Minimum Concrete Base for Riser: Diameter of Riser (in) = 24 Avg Density of Concrete (lbs/cf) = Density of Water (lbs/cf) = Riser Displacement (cf) = 13.82 Convert cf to cy = Min Concrete Needed (cy) = Width & Length (ft) = Thickness (ft) = Anti-Vortex Device: Diameter of Riser (in) = Cylinder Diameter (in) = Cylinder Thickness (gage) = Cylinder Height (in) =
x2
From Hydrograph 87.6 62.4 Pi * (DR/24)2 * Total Ht of Riser
27-1 0.36 3 1.1
24 36 16 13
From Hydrograph Ref 4, III-104, Table 3.14-D
SB Dims SB 03
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #3
Sheet: 4
Of: 4
Determine Tailwater conditions to size outlet apron Use Normal Depth Procedure (Manning's Eqn.) A*R2/3 = Q*n/1.49 s0.5
Area (A)= bd+z(d^2)
Z req = Q*n/1.49s0.5
R=Area/(b+2d((z^2)+1)^.5)
n= Vp (ft/sec) = Side Slope (z) = s (ft/ft) = Bottom Width (ft) = QB (cfs) =
Q (cfs) 4.1
Zreq 1.34
0.069 9 5 0.02 3 4.1 Flow Depth d (ft) 0.50
Ref 2, II-7
Zav = A*R2/3
6-inch diameter Rip Rap, Lined Channel Permissible Velocity for lining enter X for X:1 Outlet Slope (estimated) 3 * Barrel Diameter Peak Flow out of the barrel 10-yr Hydrograph
A (sf) 2.8
R (ft) 0.34
Zav 1.34
Flow Depth = Tailwater, d (ft) = 0.50 0.5* Barrel Diameter (ft) = 0.50 Minimum Tailwater Conditions: d0.5*Diameter of Outlet Pipe Since the Tailwater is less than half of the diameter of the outlet, use Minimum Tailwater conditions. Barrel Diameter (ft) 1
Entrance (ft) 3
Length (ft) 8
Outlet Width (ft) 9
Median Rip Rap Size d50 0.4
V (ft/sec) 1.5 Ref 1, 8.06.3
Selected Rip Rap Size (in) Class A
Conclusion The temporary basin can contain the 25-yr storm.
SB Dims SB 03
I Job No. 0453925-237673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow
Diameter of Riser (in) = Circumference of Riser (in) = Height of Riser from bottom of barrel (in) = Vertical spacing between holes (in) = Water Stage increment (ft)
24 75.4 53 0 0.05
l
Computed: PAW Date: 3/4/15 Checked: MDP Date: 3/6/15 Sheet 1 Of 2
From Hydrograph center to center
Orifice Equation Q = Cd * A * (2 * g * h)0.5 Q = cfs, discharge Cd = 0.6 coefficient of discharge A = sf, cross sectional area
Ref 1, p III-11
ft/sec2, gravity g = 32.2 h = ft, driving head measured from the center of the pipe
Row Holes per row Hole Diameter (in) Spacing edge to edge (in) Inlet Area (sf) Hole Stage (in) Hole Stage (ft)
1 0 0.75
2 0 0.75
Perforations 3 0 0.75
4 0 0.75
5 0 0.75
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
Skimmer 1
# of skimmers
Water Stage (ft) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Total Flow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.05 0.05 0.29 0.00 0.00 0.00 0.05 0.05 0.34 0.00 0.00 0.00 0.05 0.05 0.39 0.00 0.00 0.00 0.05 0.05 0.44 0.00 0.00 0.00 0.05 0.05 0.49 0.00 0.00 0.00 0.05 0.05 0.54 0.00 0.00 0.00 0.05 0.05 0.59 0.00 0.00 0.00 0.05 0.05 0.64 0.00 0.00 0.00 0.05 0.05 0.69 0.00 0.00 0.00 0.05 0.05 0.74 0.00 0.00 0.00 0.05 0.05 0.79 0.00 0.00 0.00 0.05 0.05 0.84 0.00 0.00 0.00 0.05 0.05 0.89 0.00 0.00 0.00 0.05 0.05 0.94 0.00 0.00 0.00 0.05 0.05 0.99 0.00 0.00 0.00 0.05 0.05 1.04 0.00 0.00 0.00 0.05 0.05 1.09 0.00 0.00 0.00 0.05 0.05 1.14 0.00 0.00 0.00 0.05 0.05 1.19 0.00 0.00 0.00 0.05 0.05 1.24 0.00 0.00 0.00 0.05 0.05 1.29 0.00 0.00 0.00 0.05 0.05 1.34 0.00 0.00 0.00 0.05 0.05 1.39 0.00 0.00 0.00 0.05 0.05 1.44 0.00 0.00 0.00 0.05 0.05 1.49 0.00 0.00 0.00 0.05 0.05 1.54 0.00 0.00 0.00 0.05 0.05 1.59 0.00 0.00 0.00 0.05 0.05 SB 03
Pipe Perf-Skimmer
I Job No. 0453925-237673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow 1.64 1.69 1.74 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.59 2.64 2.69 2.74 2.79 2.84 2.89 2.94 2.99 3.04 3.09 3.14 3.19 3.24 3.29 3.34 3.39 3.44 3.49 3.54 3.59 3.64 3.69 3.74 3.79 3.84 3.89 3.94 3.99
SB 03
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
l
Computed: PAW Date: 3/4/15 Checked: MDP Date: 3/6/15 Sheet 2 Of 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05
0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05
Pipe Perf-Skimmer
Computed By: PAW Date: 3/05/15 Checked By: MDP Date: 3/06/15 Sheet: __1__of _2___
Sediment Basin #
Qp =
20.57
cfs
Tp =
27.91
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
SB 03
Colon
1 12 3.4 4.4 5.0 6.0 10 24 0
10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
248.40 249.00 250.00
244.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
3
Phase 1
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 0.3 0 0.0 0.00 0.00 1.0 31 0.0 0.00 0.00 2.3 154 0.1 0.00 0.00 3.9 425 0.2 0.00 0.00 5.9 893 0.3 0.05 0.05 8.0 1,590 0.5 0.05 0.05 10.3 2,549 0.7 0.05 0.05 12.6 3,784 0.9 0.05 0.05 14.8 5,294 1.1 0.05 0.05 16.8 7,066 1.4 0.05 0.05 18.4 9,071 1.7 0.05 0.05 19.6 11,271 1.9 0.05 0.05 20.3 13,616 2.2 0.05 0.05 20.6 16,050 2.5 0.05 0.05 20.3 18,513 2.7 0.05 0.05 19.5 20,941 3.0 0.05 0.05 18.2 23,275 3.2 0.05 0.05 16.7 25,458 3.4 0.05 0.05 15.2 27,455 3.6 0.05 0.05 13.9 29,273 3.8 0.05 0.05 12.6 30,929 3.9 0.05 0.05 11.5 32,438 4.1 0.05 0.05 10.5 33,811 4.2 0.05 0.05 9.5 35,062 4.3 0.05 0.05 8.7 36,201 4.4 0.05 0.06 7.9 37,238 4.5 0.05 0.64 7.2 38,111 4.6 0.05 1.47 6.6 38,801 4.6 0.05 2.27 6.0 39,318 4.7 0.05 2.94 5.5 39,684 4.7 0.05 3.44 5.0 39,926 4.7 0.05 3.79 4.5 40,068 4.7 0.05 4.00 4.1 40,131 4.7 0.05 4.09 3.8 40,135 4.7 0.05 4.10 3.4 40,094 4.7 0.05 4.04 3.1 40,020 4.7 0.05 3.93 2.8 39,923 4.7 0.05 3.79 2.6 39,810 4.7 0.05 3.62 2.4 39,686 4.7 0.05 3.44 2.1 39,556 4.7 0.05 3.26 2.0 39,422 4.7 0.05 3.08
4.0E-03 2 98% 4.7 4.1 4.1 0.0
1.4 4,411
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 248.74 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 7.46 0.06 0.00 7.54 0.64 0.00 7.61 1.47 0.00 7.67 2.27 0.00 7.71 2.94 0.00 7.74 3.44 0.00 7.76 3.79 0.00 7.77 4.00 0.00 7.77 4.09 0.00 7.77 4.10 0.00 7.77 4.04 0.00 7.76 3.93 0.00 7.76 3.79 0.00 7.75 3.62 0.00 7.74 3.44 0.00 7.73 3.26 0.00 7.72 3.08
Bound Discharge [cfs] 0.00 0.00 3.19 5.11 6.90 8.59 10.19 11.72 13.17 14.54 15.84 17.05 18.18 19.23 20.18 21.05 21.83 22.53 23.13 23.66 24.11 24.50 24.85 25.16 25.43 25.67 25.89 26.06 26.20 26.30 26.38 26.42 26.45 26.46 26.47 26.46 26.44 26.42 26.40 26.38 26.35 26.33
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 1,448 N/A 2,323 N/A 3,136 N/A 3,905 100% 4,631 100% 5,325 100% 5,985 100% 6,610 100% 7,198 100% 7,750 100% 8,264 100% 8,739 100% 9,174 100% 9,570 100% 9,925 100% 10,240 100% 10,515 100% 10,752 100% 10,958 100% 11,138 100% 11,296 100% 11,435 100% 11,559 100% 11,668 100% 11,766 100% 11,847 100% 11,910 99% 11,957 99% 11,990 98% 12,011 98% 12,024 98% 12,029 98% 12,030 98% 12,026 98% 12,020 98% 12,011 98% 12,001 98% 11,990 98% 11,978 99% 11,966 99% SB 10-yr (P1) HG
Computed By: PAW Date: 3/05/15 Checked By: MDP Date: 3/06/15 Sheet: __2__of _2___
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 03
1.8 1.6 1.5 1.3 1.2 1.1 1.0 0.9 0.8 0.8 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
39,288 39,155 39,023 38,896 38,771 38,651 38,536 38,425 38,318 38,217 38,119 38,027 37,938 37,854 37,774 37,698 37,625 37,556 37,490 37,428 37,369 37,312 37,258 37,207 37,159 37,112 37,068 37,026 36,987 36,949 36,912 36,878 36,845 36,814 36,784 36,755 36,728 36,702 36,677 36,653 36,631 36,609 36,588 36,568 36,549 36,531 36,513 36,497 36,481 36,465 36,450 36,436 36,422 36,409 36,396 36,384 36,372 36,361 36,350 36,339 36,329 36,319
4.7 4.7 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4
0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05
2.89 2.72 2.55 2.38 2.23 2.08 1.94 1.82 1.69 1.58 1.48 1.38 1.28 1.20 1.12 1.05 0.98 0.91 0.85 0.80 0.75 0.70 0.66 0.61 0.58 0.54 0.51 0.48 0.45 0.42 0.40 0.37 0.35 0.33 0.31 0.30 0.28 0.26 0.25 0.24 0.22 0.21 0.20 0.19 0.18 0.17 0.16 0.16 0.15 0.14 0.14 0.13 0.12 0.12 0.11 0.11 0.10 0.10 0.10 0.09 0.09 0.09
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
7.71 7.70 7.69 7.68 7.67 7.66 7.65 7.64 7.63 7.62 7.62 7.61 7.60 7.59 7.59 7.58 7.58 7.57 7.57 7.56 7.56 7.55 7.55 7.54 7.54 7.53 7.53 7.53 7.52 7.52 7.52 7.52 7.51 7.51 7.51 7.51 7.50 7.50 7.50 7.50 7.50 7.49 7.49 7.49 7.49 7.49 7.49 7.49 7.48 7.48 7.48 7.48 7.48 7.48 7.48 7.48 7.47 7.47 7.47 7.47 7.47 7.47
2.89 2.72 2.55 2.38 2.23 2.08 1.94 1.82 1.69 1.58 1.48 1.38 1.28 1.20 1.12 1.05 0.98 0.91 0.85 0.80 0.75 0.70 0.66 0.61 0.58 0.54 0.51 0.48 0.45 0.42 0.40 0.37 0.35 0.33 0.31 0.30 0.28 0.26 0.25 0.24 0.22 0.21 0.20 0.19 0.18 0.17 0.16 0.16 0.15 0.14 0.14 0.13 0.12 0.12 0.11 0.11 0.10 0.10 0.10 0.09 0.09 0.09
26.30 26.27 26.25 26.22 26.20 26.17 26.15 26.13 26.11 26.08 26.07 26.05 26.03 26.01 26.00 25.98 25.96 25.95 25.94 25.92 25.91 25.90 25.89 25.88 25.87 25.86 25.85 25.84 25.83 25.83 25.82 25.81 25.80 25.80 25.79 25.79 25.78 25.77 25.77 25.76 25.76 25.76 25.75 25.75 25.74 25.74 25.74 25.73 25.73 25.73 25.72 25.72 25.72 25.71 25.71 25.71 25.71 25.70 25.70 25.70 25.70 25.70
11,954 11,942 11,930 11,919 11,907 11,896 11,886 11,876 11,866 11,857 11,848 11,839 11,831 11,823 11,816 11,809 11,802 11,796 11,790 11,784 11,778 11,773 11,768 11,763 11,759 11,754 11,750 11,746 11,743 11,739 11,736 11,732 11,729 11,726 11,724 11,721 11,718 11,716 11,714 11,711 11,709 11,707 11,705 11,703 11,701 11,700 11,698 11,696 11,695 11,693 11,692 11,691 11,689 11,688 11,687 11,686 11,685 11,684 11,683 11,682 11,681 11,680
99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #3 Colon Mine Phase 1 Hydrograph 10-Yr Storm
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Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: __1__of _2___
Sediment Basin #
Qp =
24.96
cfs
Tp =
28.28
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
SB 03
Colon
1 12 3.4 4.4 5.0 6.0 10 24 0
25 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
248.40 249.00 250.00
244.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
3
Phase 1
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 0.3 0 0.0 0.00 0.00 1.2 37 0.0 0.00 0.00 2.7 182 0.1 0.00 0.00 4.6 503 0.2 0.00 0.00 6.9 1,056 0.4 0.05 0.05 9.5 1,883 0.5 0.05 0.05 12.3 3,022 0.8 0.05 0.05 15.0 4,491 1.0 0.05 0.05 17.7 6,290 1.3 0.05 0.05 20.0 8,404 1.6 0.05 0.05 22.0 10,803 1.9 0.05 0.05 23.6 13,443 2.2 0.05 0.05 24.6 16,266 2.5 0.05 0.05 25.0 19,208 2.8 0.05 0.05 24.7 22,196 3.1 0.05 0.05 23.9 25,158 3.4 0.05 0.05 22.5 28,022 3.7 0.05 0.05 20.7 30,719 3.9 0.05 0.05 18.9 33,197 4.1 0.05 0.05 17.2 35,458 4.3 0.05 0.05 15.7 37,519 4.5 0.05 0.88 14.3 39,299 4.7 0.05 2.91 13.1 40,670 4.8 0.05 4.93 11.9 41,648 4.9 0.05 6.55 10.9 42,292 4.9 0.05 7.70 9.9 42,673 4.9 0.05 8.41 9.1 42,908 5.0 0.05 8.85 8.3 43,037 5.0 0.05 9.10 7.5 43,069 5.0 0.05 9.16 6.9 43,014 5.0 0.05 9.06 6.3 42,880 5.0 0.05 8.80 5.7 42,675 4.9 0.05 8.41 5.2 42,405 4.9 0.05 7.91 4.8 42,082 4.9 0.05 7.32 4.3 41,774 4.9 0.05 6.77 4.0 41,481 4.8 0.05 6.27 3.6 41,204 4.8 0.05 5.80 3.3 40,941 4.8 0.05 5.36 3.0 40,693 4.8 0.05 4.96 2.7 40,457 4.8 0.05 4.59 2.5 40,235 4.7 0.05 4.25
4.0E-03 2 94% 5.0 8.0 8.0 0.0
1.4 4,411
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 248.98 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 0.05 0.05 0.00 7.57 0.88 0.00 7.71 2.91 0.00 7.81 4.93 0.00 7.89 6.55 0.00 7.93 7.70 0.00 7.96 7.96 0.00 7.98 7.98 0.00 7.99 7.99 0.00 7.99 7.99 0.00 7.99 7.99 0.00 7.98 7.98 0.00 7.96 7.96 0.00 7.94 7.91 0.00 7.92 7.32 0.00 7.89 6.77 0.00 7.87 6.27 0.00 7.85 5.80 0.00 7.83 5.36 0.00 7.81 4.96 0.00 7.80 4.59 0.00 7.78 4.25
Bound Discharge [cfs] 0.00 0.00 3.35 5.37 7.25 9.03 10.71 12.32 13.85 15.30 16.67 17.95 19.15 20.26 21.28 22.21 23.05 23.80 24.45 25.02 25.51 25.94 26.30 26.57 26.76 26.88 26.95 26.99 27.02 27.02 27.01 26.99 26.95 26.90 26.84 26.78 26.72 26.67 26.62 26.57 26.53 26.48
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 1,521 N/A 2,441 N/A 3,295 N/A 4,104 100% 4,869 100% 5,600 100% 6,296 100% 6,955 100% 7,577 100% 8,161 100% 8,706 100% 9,211 100% 9,675 100% 10,097 100% 10,478 100% 10,817 100% 11,115 100% 11,373 100% 11,597 100% 11,792 100% 11,955 99% 12,077 97% 12,162 96% 12,217 94% 12,250 94% 12,270 94% 12,281 94% 12,283 94% 12,279 94% 12,267 94% 12,250 94% 12,227 94% 12,199 95% 12,173 95% 12,148 96% 12,124 96% 12,101 97% 12,079 97% 12,058 97% 12,039 98% SB 25-yr (P1) HG
Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: __2__of _2___
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 03
2.3 2.1 1.9 1.7 1.6 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.8 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
40,025 39,826 39,638 39,461 39,293 39,134 38,984 38,842 38,708 38,581 38,460 38,347 38,239 38,137 38,041 37,949 37,863 37,780 37,703 37,629 37,559 37,492 37,429 37,370 37,313 37,259 37,208 37,159 37,113 37,069 37,027 36,987 36,949 36,913 36,878 36,846 36,814 36,784 36,756 36,729 36,703 36,678 36,654 36,632 36,610 36,589 36,569 36,550 36,532 36,515 36,498 36,482 36,466 36,451 36,437 36,423 36,410 36,397 36,385 36,373 36,362 36,351
4.7 4.7 4.7 4.7 4.7 4.7 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4
0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05
3.94 3.64 3.38 3.13 2.90 2.69 2.50 2.32 2.15 2.00 1.86 1.73 1.61 1.49 1.39 1.30 1.21 1.13 1.05 0.98 0.92 0.86 0.80 0.75 0.70 0.66 0.61 0.58 0.54 0.51 0.48 0.45 0.42 0.40 0.37 0.35 0.33 0.31 0.30 0.28 0.26 0.25 0.24 0.22 0.21 0.20 0.19 0.18 0.17 0.16 0.16 0.15 0.14 0.14 0.13 0.12 0.12 0.11 0.11 0.11 0.10 0.10
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
7.76 7.75 7.73 7.72 7.71 7.69 7.68 7.67 7.66 7.65 7.64 7.63 7.62 7.62 7.61 7.60 7.59 7.59 7.58 7.58 7.57 7.57 7.56 7.56 7.55 7.55 7.54 7.54 7.53 7.53 7.53 7.52 7.52 7.52 7.52 7.51 7.51 7.51 7.51 7.50 7.50 7.50 7.50 7.50 7.49 7.49 7.49 7.49 7.49 7.49 7.49 7.48 7.48 7.48 7.48 7.48 7.48 7.48 7.48 7.47 7.47 7.47
3.94 3.64 3.38 3.13 2.90 2.69 2.50 2.32 2.15 2.00 1.86 1.73 1.61 1.49 1.39 1.30 1.21 1.13 1.05 0.98 0.92 0.86 0.80 0.75 0.70 0.66 0.61 0.58 0.54 0.51 0.48 0.45 0.42 0.40 0.37 0.35 0.33 0.31 0.30 0.28 0.26 0.25 0.24 0.22 0.21 0.20 0.19 0.18 0.17 0.16 0.16 0.15 0.14 0.14 0.13 0.12 0.12 0.11 0.11 0.11 0.10 0.10
26.44 26.40 26.37 26.33 26.30 26.27 26.24 26.21 26.18 26.16 26.13 26.11 26.09 26.07 26.05 26.03 26.01 26.00 25.98 25.97 25.95 25.94 25.92 25.91 25.90 25.89 25.88 25.87 25.86 25.85 25.84 25.83 25.83 25.82 25.81 25.80 25.80 25.79 25.79 25.78 25.78 25.77 25.76 25.76 25.76 25.75 25.75 25.74 25.74 25.74 25.73 25.73 25.73 25.72 25.72 25.72 25.71 25.71 25.71 25.71 25.70 25.70
12,020 12,002 11,985 11,970 11,955 11,940 11,927 11,914 11,902 11,890 11,879 11,869 11,859 11,849 11,841 11,832 11,824 11,817 11,809 11,803 11,796 11,790 11,784 11,778 11,773 11,768 11,763 11,759 11,754 11,750 11,746 11,743 11,739 11,736 11,732 11,729 11,726 11,724 11,721 11,718 11,716 11,714 11,711 11,709 11,707 11,705 11,703 11,702 11,700 11,698 11,697 11,695 11,694 11,692 11,691 11,689 11,688 11,687 11,686 11,685 11,684 11,683
98% 98% 98% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 25-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #3 Colon Mine Phase 1 Hydrograph 25-Yr Storm
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I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #4
Sheet: 1
Of: 4
Objective
Design the temporary sediment basin to contain the 25-year storm.
References 1. NC Erosion and Sediment Control Planning and Design Manual. 2. "Elements of Urban Stormwater Design" by H. Rooney Malcom, P.E. 3. NOAA Atlas 14, Volume 2, Version 3 4. VA Erosion and Sediment Control Handbook Given Phase Storm Event (yrs) = Total Drainage Area A (ac) = Disturbed Area (ac) = Curve Number CN = Rainfall Depth P (in) = Peak Flow Qp (cfs) =
1 10 12.7 12.7 89 5.28 77.74
1 25 12.7 12.7 89 6.28 95.13
Hydrographs (24-hr rainfall) Hydrographs
Ref 3
Design Criteria Required sediment storage Required sediment storage
1,800 22,860
cf / acre of drainage cf
Required Surface Area Required Surface Area (SF)
435 41,382
sf/cfs of the 10-yr storm peak flow (based on the largest Phase in cfs) of the 10-yr storm peak flow (based on the largest Phase)
Determine Shape of Basin: Measure the area of the Basin using AutoCADD. Calculate Volume of the Basin using Truncated Pyramid Method. Shape factor used in hydrographs basin depth may be gretaer than indicated below
Elevation (ft) 261 262 263 264 265 266 267
Depth (ft) 0 1 2 3 4 5 6
Area (sf) 26,486 29,254 32,108 35,046 38,057 41,127 44,258
Volume (cf) 0 27,859 30,670 33,566 36,541 39,582 42,683
Design Sediment Depth (ft) = 3 Sediment Storage (cf) = 92,095 Design Surface Area Depth (ft) = 3 Surface Area (sf) = 35,046
Cumulative Vol (cf) 0 27,859 58,528 92,095 128,636 168,218 210,901
Cumulative Vol (cy) 0 1,032 2,168 3,411 4,764 6,230 7,811
Required Sediment Storage Achieved
Increase Surface Area
SB Dims SB 04
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #4
Sheet: 2
Of: 4
Select Skimmer A. R. Jarrett Method D = [Q / (2,310 * (H 0.5)]0.5 D =Diameter of Orifice (inches) Q = Dewater Rate (cf/day) H = Head on orifice, varies based on skimmer size (ft) Skimmer Sizes (Inches) 1.5 2 2.5 3 4 5 6 8
Head (ft) 0.125 0.167 0.167 0.250 0.333 0.333 0.417 0.500
Volume to Dewater (cf) = Number of Skimmers Days to Drain = Q each (cf/day) =
92,095 1 5 18,419
Selected Skimmer Size (inches) = Head on Skimmer (feet) = Diameter of Orifice (inches) =
4 0.333 3.7
assumed 0.21 cfs
Route the flow through the Basin Riser is not perforated, but skimmer is attached. S = (1000/CN) - 10 2 Runoff Depth Q* (inches) = (P-0.2S) /(P+0.8S) TP (min) = 60.5(Q*)A/QP/1.39
Phase Storm Event (yrs) = S= Runoff Depth Q* (inches) = Time to Peak T p (min) =
1 10 1.24 4.04 28.73
Ref 2, III-4
1 25 1.24 5.01 29.09
SB Dims SB 04
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #4
Sheet: 3
Of: 4
Determine Pond Storage Elevation (Z Water): Pick one point near max expected water surface and the other at the mid depth. Z1 (ft) = 3 S1 (cf)= 92,095 Z2 (ft) = 5 S2 (cf) = 168,218 b = ln(S2/S1)/ln(Z2/Z1) = 1.2 b
KS = S2/Z2 =
Ref 2, III-8
25,208
Determine Settling Velocity Conversion Factor =
3.281 ft/sec per m/sec
2
Gravitational Acceleration, g (m/s ) = Specific Gravity of soil (ss)=
9.81 2.6 2 o 1.14E-06m / sec @ 20 C 40.00E-06 m
Kinematic Viscosity of water (v) = Diameter of the Design Particle d 15 = Design Particle Settling Velocity
=
( g / 18 ) * [ ( s s
Route the Storm through the Basin using the Hydrograph Model Set Height of Emergency Spillway at (ft) = 6.00 Set Top of Dam at (ft) = 6.60
Ref 2, IV-11
- 1 ) / v ] d2 =
4.02E-03
ft/sec
See Hydrograph
Anti-Seep Collar: Anti-Seep Collar Size = 2 * Barrel Dia Anti-Seep Collar Size (ft) = 2 Use Anti-Seep Collar Size (ft) = 2 Minimum Concrete Base for Riser: Diameter of Riser (in) = 24 Avg Density of Concrete (lbs/cf) = Density of Water (lbs/cf) = Riser Displacement (cf) = 16.65 Convert cf to cy = Min Concrete Needed (cy) = Width & Length (ft) = Thickness (ft) =
x2
From Hydrograph 87.6 62.4 Pi * (DR/24)2 * Total Ht of Riser
27-1 0.44 3 1.3
SB Dims SB 04
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #4
Sheet: 4
Of: 4
Anti-Vortex Device: Diameter of Riser (in) = Cylinder Diameter (in) = Cylinder Thickness (gage) = Cylinder Height (in) =
24 36 16 13
From Hydrograph Ref 4, III-104, Table 3.14-D
Determine Tailwater conditions to size outlet apron Use Normal Depth Procedure (Manning's Eqn.) A*R2/3 = Q*n/1.49 s0.5
Area (A)= bd+z(d^2)
Z req = Q*n/1.49s0.5
R=Area/(b+2d((z^2)+1)^.5)
n= Vp (ft/sec) = Side Slope (z) = s (ft/ft) = Bottom Width (ft) = QB (cfs) =
Q (cfs) 0.7
Zreq 0.24
0.069 9 5 0.02 3 0.7 Flow Depth d (ft) 0.20
Ref 2, II-7
Zav = A*R2/3
6-inch diameter Rip Rap, Lined Channel Permissible Velocity for lining enter X for X:1 Outlet Slope (estimated) 3 * Barrel Diameter Peak Flow out of the barrel 10-yr Hydrograph
A (sf) 0.8
R (ft) 0.16
Zav 0.24
Flow Depth = Tailwater, d (ft) = 0.20 0.5* Barrel Diameter (ft) = 0.50 Minimum Tailwater Conditions: d0.5*Diameter of Outlet Pipe Since the Tailwater is less than half of the diameter of the outlet, use Minimum Tailwater conditions. Barrel Diameter (ft) 1
Entrance (ft) 3
Length (ft) 8
Outlet Width (ft) 9
Median Rip Rap Size d50 0.4
V (ft/sec) 0.9 Ref 1, 8.06.3
Selected Rip Rap Size (in) Class A
Conclusion The temporary basin can contain the 25-yr storm.
SB Dims SB 04
I Job No. 0453925-237673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow
Diameter of Riser (in) = Circumference of Riser (in) = Height of Riser from bottom of barrel (in) = Vertical spacing between holes (in) = Water Stage increment (ft)
24 75.4 64 0 0.05
l
Computed: PAW Date: 3/4/15 Checked: MDP Date: 3/6/15 Sheet: 1 Of: 2
From Hydrograph center to center
Orifice Equation Q = Cd * A * (2 * g * h)0.5 Q = cfs, discharge Cd = 0.6 coefficient of discharge A = sf, cross sectional area
Ref 1, p III-11
ft/sec2, gravity g = 32.2 h = ft, driving head measured from the center of the pipe
Row Holes per row Hole Diameter (in) Spacing edge to edge (in) Inlet Area (sf) Hole Stage (in) Hole Stage (ft)
1 0 0.75
2 0 0.75
Perforations 3 0 0.75
4 0 0.75
5 0 0.75
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
Skimmer 1
# of skimmers
Water Stage (ft) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Total Flow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.00 0.00 0.29 0.00 0.00 0.00 0.00 0.00 0.34 0.00 0.00 0.00 0.21 0.21 0.39 0.00 0.00 0.00 0.21 0.21 0.44 0.00 0.00 0.00 0.21 0.21 0.49 0.00 0.00 0.00 0.21 0.21 0.54 0.00 0.00 0.00 0.21 0.21 0.59 0.00 0.00 0.00 0.21 0.21 0.64 0.00 0.00 0.00 0.21 0.21 0.69 0.00 0.00 0.00 0.21 0.21 0.74 0.00 0.00 0.00 0.21 0.21 0.79 0.00 0.00 0.00 0.21 0.21 0.84 0.00 0.00 0.00 0.21 0.21 0.89 0.00 0.00 0.00 0.21 0.21 0.94 0.00 0.00 0.00 0.21 0.21 0.99 0.00 0.00 0.00 0.21 0.21 1.04 0.00 0.00 0.00 0.21 0.21 1.09 0.00 0.00 0.00 0.21 0.21 1.14 0.00 0.00 0.00 0.21 0.21 1.19 0.00 0.00 0.00 0.21 0.21 1.24 0.00 0.00 0.00 0.21 0.21 1.29 0.00 0.00 0.00 0.21 0.21 1.34 0.00 0.00 0.00 0.21 0.21 1.39 0.00 0.00 0.00 0.21 0.21 1.44 0.00 0.00 0.00 0.21 0.21 1.49 0.00 0.00 0.00 0.21 0.21 1.54 0.00 0.00 0.00 0.21 0.21 1.59 0.00 0.00 0.00 0.21 0.21 SB 04
Pipe Perf-Skimmer
I Job No. 0453925-237673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow 1.64 1.69 1.74 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.59 2.64 2.69 2.74 2.79 2.84 2.89 2.94 2.99 3.04 3.09 3.14 3.19 3.24 3.29 3.34 3.39 3.44 3.49 3.54 3.59 3.64 3.69 3.74 3.79 3.84 3.89 3.94 3.99
SB 04
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
l
Computed: PAW Date: 3/4/15 Checked: MDP Date: 3/6/15 Sheet: 2 Of: 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21
0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21
Pipe Perf-Skimmer
Computed By: PAW Date: 3/05/15 Checked By: MDP Date: 3/0615 Sheet: __1_of __2_
Sediment Basin #
Qp =
77.74
cfs
Tp =
28.73
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
SB 04
Colon
1 12 4.3 5.3 6.0 6.6 20 24 0
10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
266.30 267.00 267.60
261.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
4
Phase 1
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 0.9 0 0.0 0.00 0.00 3.7 111 0.0 0.00 0.00 8.1 550 0.0 0.00 0.00 13.9 1,519 0.1 0.00 0.00 21.0 3,192 0.2 0.00 0.00 28.9 5,714 0.3 0.00 0.00 37.3 9,185 0.4 0.21 0.21 45.8 13,638 0.6 0.21 0.21 53.9 19,106 0.8 0.21 0.21 61.3 25,551 1.0 0.21 0.21 67.7 32,885 1.3 0.21 0.21 72.7 40,981 1.5 0.21 0.21 76.0 49,674 1.8 0.21 0.21 77.6 58,771 2.0 0.21 0.21 77.4 68,060 2.3 0.21 0.21 75.3 77,318 2.6 0.21 0.21 71.5 86,326 2.8 0.21 0.21 66.2 94,876 3.1 0.21 0.21 60.4 102,791 3.3 0.21 0.21 55.2 110,020 3.5 0.21 0.21 50.4 116,620 3.7 0.21 0.21 46.1 122,648 3.8 0.21 0.21 42.1 128,151 4.0 0.21 0.21 38.4 133,177 4.1 0.21 0.21 35.1 137,765 4.2 0.21 0.21 32.1 141,954 4.3 0.21 0.21 29.3 145,778 4.4 0.21 0.21 26.8 149,269 4.5 0.21 0.21 24.5 152,456 4.6 0.21 0.21 22.3 155,365 4.7 0.21 0.21 20.4 158,020 4.7 0.21 0.21 18.6 160,444 4.8 0.21 0.21 17.0 162,655 4.9 0.21 0.21 15.6 164,673 4.9 0.21 0.21 14.2 166,514 5.0 0.21 0.21 13.0 168,193 5.0 0.21 0.21 11.9 169,725 5.0 0.21 0.21 10.8 171,122 5.1 0.21 0.21 9.9 172,396 5.1 0.21 0.21 9.0 173,558 5.1 0.21 0.21 8.3 174,617 5.2 0.21 0.21
4.0E-03 2 100% 5.4 0.7 0.7 0.0
1.2 25,208
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 266.39 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21
Bound Discharge [cfs] 0.00 0.00 28.66 36.56 42.66 47.77 52.19 56.10 59.57 62.71 65.54 68.10 70.42 72.51 74.39 76.07 77.56 78.87 80.01 80.99 81.83 82.56 83.20 83.75 84.24 84.68 85.07 85.41 85.72 85.99 86.24 86.46 86.66 86.85 87.01 87.16 87.29 87.41 87.52 87.62 87.71 87.79
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 13,029 N/A 16,618 N/A 19,393 N/A 21,712 N/A 23,722 N/A 25,498 100% 27,078 100% 28,502 100% 29,790 100% 30,956 100% 32,010 100% 32,960 100% 33,814 100% 34,577 100% 35,254 100% 35,850 100% 36,368 100% 36,814 100% 37,197 100% 37,528 100% 37,816 100% 38,070 100% 38,293 100% 38,491 100% 38,666 100% 38,823 100% 38,963 100% 39,088 100% 39,201 100% 39,302 100% 39,393 100% 39,475 100% 39,549 100% 39,616 100% 39,677 100% 39,731 100% 39,781 100% 39,826 100% 39,867 100% 39,904 100% SB 10-yr (P1) HG
Computed By: PAW Date: 3/05/15 Checked By: MDP Date: 3/0615 Sheet: __2_of __2_
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 04
7.5 6.9 6.3 5.7 5.3 4.8 4.4 4.0 3.7 3.3 3.1 2.8 2.5 2.3 2.1 1.9 1.8 1.6 1.5 1.4 1.2 1.1 1.0 0.9 0.9 0.8 0.7 0.7 0.6 0.5 0.5 0.5 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0
175,582 176,461 177,262 177,992 178,656 179,260 179,810 180,311 180,765 181,174 181,539 181,864 182,152 182,405 182,626 182,818 182,983 183,125 183,244 183,343 183,425 183,491 183,541 183,579 183,605 183,621 183,627 183,625 183,616 183,600 183,578 183,552 183,520 183,485 183,447 183,405 183,361 183,315 183,267 183,217 183,167 183,115 183,062 183,009 182,956 182,902 182,848 182,794 182,740 182,686 182,633 182,579 182,526 182,474 182,422 182,370 182,319 182,269 182,219 182,170 182,121 182,073
5.2 5.2 5.2 5.2 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.3 5.3 5.3
0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21
0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.22 0.25 0.29 0.34 0.39 0.44 0.48 0.52 0.56 0.59 0.62 0.65 0.67 0.69 0.70 0.71 0.72 0.73 0.73 0.73 0.73 0.73 0.73 0.72 0.72 0.71 0.70 0.69 0.68 0.67 0.66 0.65 0.64 0.63 0.62 0.61 0.60 0.59 0.58 0.57 0.56 0.55 0.54 0.53 0.52 0.51 0.50 0.49 0.48 0.47 0.46 0.45 0.44 0.43 0.42
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.21 0.21 0.21 0.21 0.21 0.21 0.21 8.27 8.28 8.29 8.30 8.31 8.31 8.32 8.32 8.33 8.33 8.33 8.34 8.34 8.34 8.34 8.34 8.34 8.35 8.35 8.35 8.35 8.35 8.35 8.34 8.34 8.34 8.34 8.34 8.34 8.34 8.34 8.34 8.34 8.34 8.33 8.33 8.33 8.33 8.33 8.33 8.33 8.33 8.33 8.32 8.32 8.32 8.32 8.32 8.32 8.32 8.32 8.32 8.31 8.31 8.31
0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.22 0.25 0.29 0.34 0.39 0.44 0.48 0.52 0.56 0.59 0.62 0.65 0.67 0.69 0.70 0.71 0.72 0.73 0.73 0.73 0.73 0.73 0.73 0.72 0.72 0.71 0.70 0.69 0.68 0.67 0.66 0.65 0.64 0.63 0.62 0.61 0.60 0.59 0.58 0.57 0.56 0.55 0.54 0.53 0.52 0.51 0.50 0.49 0.48 0.47 0.46 0.45 0.44 0.43 0.42
87.86 87.93 87.99 88.04 88.09 88.14 88.18 88.22 88.25 88.28 88.31 88.33 88.35 88.37 88.39 88.40 88.41 88.43 88.43 88.44 88.45 88.45 88.46 88.46 88.46 88.46 88.46 88.46 88.46 88.46 88.46 88.46 88.45 88.45 88.45 88.45 88.44 88.44 88.44 88.43 88.43 88.42 88.42 88.42 88.41 88.41 88.40 88.40 88.40 88.39 88.39 88.39 88.38 88.38 88.37 88.37 88.37 88.36 88.36 88.35 88.35 88.35
39,937 39,967 39,995 40,020 40,043 40,063 40,082 40,099 40,114 40,128 40,140 40,151 40,161 40,169 40,177 40,183 40,189 40,193 40,197 40,201 40,203 40,205 40,207 40,208 40,209 40,210 40,210 40,210 40,210 40,209 40,208 40,207 40,206 40,205 40,204 40,203 40,201 40,200 40,198 40,196 40,195 40,193 40,191 40,189 40,188 40,186 40,184 40,182 40,180 40,179 40,177 40,175 40,173 40,172 40,170 40,168 40,166 40,165 40,163 40,161 40,160 40,158
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #4 Colon Mine Phase 1 Hydrograph 10-Yr Storm
This page intentionally left blank.
Computed By: PAW Date: 3/05/15 Checked By: MDP Date: 3/0615 Sheet: __1_of __2_
Sediment Basin #
Qp =
95.13
cfs
Tp =
29.09
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
SB 04
Colon
1 12 4.3 5.3 6 6.6 20 24 0
25 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
266.30 267.00 267.60
261.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
4
Phase 1
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.1 0 0.0 0.00 0.00 4.4 133 0.0 0.00 0.00 9.6 657 0.0 0.00 0.00 16.7 1,813 0.1 0.00 0.00 25.1 3,814 0.2 0.00 0.00 34.6 6,830 0.3 0.00 0.00 44.8 10,988 0.5 0.21 0.21 55.0 16,333 0.7 0.21 0.21 64.9 22,907 0.9 0.21 0.21 74.0 30,669 1.2 0.21 0.21 81.8 39,521 1.5 0.21 0.21 88.1 49,317 1.8 0.21 0.21 92.5 59,865 2.1 0.21 0.21 94.8 70,939 2.4 0.21 0.21 94.9 82,289 2.7 0.21 0.21 92.8 93,652 3.0 0.21 0.21 88.6 104,763 3.3 0.21 0.21 82.5 115,371 3.6 0.21 0.21 75.6 125,246 3.9 0.21 0.21 69.1 134,290 4.1 0.21 0.21 63.2 142,559 4.3 0.21 0.21 57.8 150,118 4.5 0.21 0.21 52.9 157,029 4.7 0.21 0.21 48.3 163,348 4.9 0.21 0.21 44.2 169,123 5.0 0.21 0.21 40.4 174,403 5.2 0.21 0.21 37.0 179,229 5.3 0.21 0.21 33.8 183,641 5.4 0.21 0.74 30.9 187,610 5.5 0.21 1.86 28.3 191,098 5.6 0.21 3.14 25.9 194,115 5.6 0.21 4.42 23.7 196,688 5.7 0.21 5.63 21.6 198,850 5.8 0.21 6.72 19.8 200,639 5.8 0.21 7.67 18.1 202,091 5.8 0.21 8.48 16.5 203,245 5.9 0.21 9.13 15.1 204,180 5.9 0.21 9.67 13.8 204,944 5.9 0.21 10.13 12.7 205,550 5.9 0.21 10.49 11.6 206,013 5.9 0.21 10.77 10.6 206,345 5.9 0.21 10.97
4.0E-03 2 99% 6.0 8.8 8.8 0.0
1.2 25,208
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 266.95 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 0.21 0.21 0.00 8.35 0.74 0.00 8.43 1.86 0.00 8.50 3.14 0.00 8.56 4.42 0.00 8.62 5.63 0.00 8.66 6.72 0.00 8.70 7.67 0.00 8.73 8.48 0.00 8.75 8.75 0.00 8.77 8.77 0.00 8.78 8.78 0.00 8.80 8.80 0.00 8.80 8.80 0.00 8.81 8.81
Bound Discharge [cfs] 0.00 0.00 29.45 37.56 43.83 49.08 53.62 57.65 61.23 64.46 67.38 70.03 72.43 74.60 76.55 78.30 79.85 81.23 82.43 83.46 84.35 85.12 85.79 86.38 86.90 87.36 87.77 88.14 88.46 88.75 89.00 89.21 89.39 89.54 89.66 89.76 89.84 89.90 89.95 89.99 90.02 90.05
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 13,384 N/A 17,072 N/A 19,923 N/A 22,308 N/A 24,375 N/A 26,203 100% 27,831 100% 29,300 100% 30,629 100% 31,833 100% 32,924 100% 33,909 100% 34,795 100% 35,589 100% 36,296 100% 36,921 100% 37,466 100% 37,937 100% 38,341 100% 38,691 100% 38,997 100% 39,264 100% 39,501 100% 39,710 100% 39,896 100% 40,062 100% 40,210 100% 40,341 100% 40,455 100% 40,551 100% 40,632 100% 40,700 99% 40,755 99% 40,800 99% 40,836 99% 40,864 99% 40,887 99% 40,906 99% 40,920 99% 40,930 99% SB 25-yr (P1) HG
Computed By: PAW Date: 3/05/15 Checked By: MDP Date: 3/0615 Sheet: __2_of __2_
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 04
9.7 8.9 8.1 7.4 6.8 6.2 5.7 5.2 4.7 4.3 4.0 3.6 3.3 3.0 2.8 2.5 2.3 2.1 1.9 1.8 1.6 1.5 1.4 1.2 1.1 1.0 0.9 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0
206,557 206,661 206,665 206,578 206,408 206,163 205,849 205,472 205,038 204,552 204,019 203,442 202,826 202,175 201,515 200,869 200,237 199,620 199,019 198,434 197,865 197,313 196,778 196,259 195,757 195,271 194,800 194,346 193,906 193,482 193,072 192,676 192,294 191,925 191,569 191,225 190,893 190,573 190,264 189,966 189,678 189,400 189,131 188,872 188,622 188,380 188,146 187,921 187,703 187,492 187,288 187,091 186,901 186,716 186,538 186,365 186,198 186,037 185,880 185,728 185,581 185,438
6.0 6.0 6.0 6.0 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.8 5.8 5.8 5.8 5.8 5.8 5.8 5.7 5.7 5.7 5.7 5.7 5.7 5.7 5.7 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.4 5.4 5.4 5.4 5.4 5.4
0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21
11.10 11.16 11.17 11.11 11.01 10.86 10.67 10.44 10.18 9.89 9.58 9.25 8.89 8.52 8.16 7.80 7.46 7.13 6.81 6.51 6.22 5.94 5.68 5.43 5.18 4.95 4.74 4.53 4.33 4.14 3.96 3.79 3.63 3.47 3.33 3.19 3.06 2.93 2.81 2.70 2.59 2.48 2.39 2.29 2.20 2.12 2.04 1.96 1.89 1.82 1.75 1.69 1.63 1.57 1.52 1.46 1.41 1.37 1.32 1.28 1.23 1.19
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
8.82 8.82 8.82 8.82 8.81 8.81 8.80 8.79 8.79 8.78 8.76 8.75 8.74 8.73 8.71 8.70 8.69 8.68 8.66 8.65 8.64 8.63 8.62 8.61 8.60 8.59 8.58 8.57 8.56 8.55 8.54 8.54 8.53 8.52 8.51 8.51 8.50 8.49 8.49 8.48 8.47 8.47 8.46 8.46 8.45 8.45 8.44 8.44 8.43 8.43 8.42 8.42 8.41 8.41 8.41 8.40 8.40 8.40 8.39 8.39 8.39 8.38
8.82 8.82 8.82 8.82 8.81 8.81 8.80 8.79 8.79 8.78 8.76 8.75 8.74 8.52 8.16 7.80 7.46 7.13 6.81 6.51 6.22 5.94 5.68 5.43 5.18 4.95 4.74 4.53 4.33 4.14 3.96 3.79 3.63 3.47 3.33 3.19 3.06 2.93 2.81 2.70 2.59 2.48 2.39 2.29 2.20 2.12 2.04 1.96 1.89 1.82 1.75 1.69 1.63 1.57 1.52 1.46 1.41 1.37 1.32 1.28 1.23 1.19
90.06 90.07 90.07 90.06 90.05 90.03 90.01 89.99 89.96 89.93 89.89 89.85 89.81 89.77 89.72 89.68 89.63 89.59 89.55 89.51 89.47 89.43 89.40 89.36 89.33 89.29 89.26 89.23 89.20 89.17 89.14 89.11 89.08 89.06 89.03 89.01 88.99 88.96 88.94 88.92 88.90 88.88 88.86 88.84 88.82 88.81 88.79 88.77 88.76 88.74 88.73 88.71 88.70 88.69 88.67 88.66 88.65 88.64 88.63 88.62 88.60 88.59
40,936 40,939 40,939 40,937 40,932 40,924 40,915 40,903 40,890 40,875 40,859 40,842 40,823 40,803 40,782 40,763 40,743 40,724 40,705 40,687 40,669 40,652 40,635 40,619 40,603 40,588 40,573 40,558 40,544 40,531 40,518 40,505 40,493 40,481 40,470 40,459 40,448 40,438 40,428 40,418 40,409 40,400 40,391 40,383 40,374 40,367 40,359 40,352 40,344 40,338 40,331 40,324 40,318 40,312 40,306 40,301 40,295 40,290 40,285 40,280 40,275 40,270
99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 25-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #4 Colon Mine Phase 1 Hydrograph 25-Yr Storm
This page intentionally left blank.
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #5
Sheet: 1
Of:
Objective
Design the sediment basin to contain the 10-year storm and pass the 100-year storm without over topping the berm.
4
References 1. NC Erosion and Sediment Control Planning and Design Manual. 2. "Elements of Urban Stormwater Design" by H. Rooney Malcom, P.E. 3. VA Erosion and Sediment Control Handbook 3. NOAA Atlas 14, Volume 2, Version 3 Given Phase Storm Event (yrs) = Total Drainage Area A (ac) = Disturbed Area (ac) = Curve Number CN = Rainfall Depth P (in) = Peak Flow Qp (cfs) =
1 10 49.3 49.3 89 5.28 301.78
2 10 42.1 42.1 88 5.28 252.52
2 25 42.1 42.1 88 6.28 310.28
2 100 42.1 42.1 88 7.88 402.08
Hydrographs (24-hr rainfall) Hydrographs
Ref 3
Design Criteria Required sediment storage Required sediment storage
1,800 88,740
cf / acre of drainage cf (based on largest Phase)
Required Surface Area Required Surface Area (SF)
435 131,274
sf/cfs of the 10-yr storm peak flow (based on the largest Phase in cfs) of the 10-yr storm peak flow (based on the largest Phase)
Determine Shape of Basin: Measure the area of the Basin using AutoCADD. Calculate Volume of the Basin using Truncated Pyramid Method. Shape factor used in hydrographs basin depth may be gretaer than indicated below
Elevation (ft) 255 256 257 258 259 260 261
Depth (ft) 0 1 2 3 4 5 6
Area (sf) 118,763 124,341 129,979 135,678 141,437 147,256 153,136
Volume (cf) 0 121,541 127,150 132,818 138,548 144,337 150,186
Design Sediment Depth (ft) = 3 Sediment Storage (cf) = 381,509 Design Surface Area Depth (ft) = 3 Surface Area (sf) = 135,678
Cumulative Vol (cf) 0 121,541 248,691 381,509 520,057 664,393 814,580
Cumulative Vol (cy) 0 4,502 9,211 14,130 19,261 24,607 30,170
Required Sediment Storage Achieved
Required Surface Area Achieved
SB Dims SB 05.xlsx
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #5
Sheet: 2
Of:
4
Select Skimmer A. R. Jarrett Method D = [Q / (2,310 * (H 0.5)]0.5 D =Diameter of Orifice (inches) Q = Dewater Rate (cf/day) H = Head on orifice, varies based on skimmer size (ft) Skimmer Sizes (Inches) 1.5 2 2.5 3 4 5 6 8 Volume to Dewater (cf) = Number of Skimmers Days to Drain = Q each (cf/day) = Selected Skimmer Size (inches) = Head on Skimmer (feet) = Diameter of Orifice (inches) =
Head (ft) 0.125 0.167 0.167 0.250 0.333 0.333 0.417 0.500 381,509 2 5 38,151
assumed 0.44 cfs
6 0.417 5.1
Route the flow through the Basin Riser is not perforated, but skimmer is attached. S = (1000/CN) - 10 2 Runoff Depth Q* (inches) = (P-0.2S) /(P+0.8S) TP (min) = 60.5(Q*)A/QP/1.39
Phase Storm Event (yrs) = S= Runoff Depth Q* (inches) = Time to Peak T p (min) =
1 10 1.24 4.04 28.73
2 10 1.36 3.94 28.56
Ref 2, III-4
2 25 1.36 4.90 28.91
Determine Pond Storage Elevation (ZWater): Pick one point near max expected water surface and the other at the mid depth. Z1 (ft) = 3 S1 (cf)= 381,509 Z2 (ft) = 6 S2 (cf) = 814,580 1.1 b = ln(S2/S1)/ln(Z2/Z1) = b
KS = S2/Z2 =
2 100 1.36 6.45 29.40
Ref 2, III-8
114,650
SB Dims SB 05.xlsx
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #5
Sheet: 3
Of:
Determine Settling Velocity Conversion Factor =
3.281 ft/sec per m/sec
2
Gravitational Acceleration, g (m/s ) = Specific Gravity of soil (ss)= Kinematic Viscosity of water (v) = Diameter of the Design Particle d15 = Design Particle Settling Velocity
4
9.81 2.6 2 o 1.14E-06m / sec @ 20 C 40.00E-06 m
=
( g / 18 ) * [ ( ss
Route the Storm through the Basin using the Hydrograph Model Set Height of Emergency Spillway at (ft) = 6.00 Set Top of Dam at (ft) = 7.00 Emergency Spillway QE (cfs) = 100-Yr Storm QE (cfs) = 2.9 Cross Section = Trapezoid Channel Side Slope (z) = 5 n= 0.03 Vp (ft/sec) = 5.0 Allowable Shear Stress (psf) = 2.0 Bottom Width, b (ft) = 20
Ref 2, IV-11
- 1 ) / v ] d2 =
4.02E-03
ft/sec
See Hydrograph
(enter X for X:1) Grass Lined Permissible Velocity for lining Allowable Shear Stress for lining
Ref 2, II-7
Calculate Required Depth of Spillway: Normal-Depth Procedure AR2/3=Qn/1.49s0.5
Q=VA
Zreq=Qn/1.49s0.5
Area (A)= bd+z(d^2)
2/3
Zav=AR
Channel Slope ft/ft 0.01 0.02
Depth, d (ft) 0.18 0.15
A (sf) 3.77 3.03
Construct the channel to be :
R=Area/(b+2d((z^2)+1)^.5) Avg Shear Stress(T) = Kb*d*s*unit weight of water
Zreq 0.58 0.41 20 1.0 1%
R 0.17 0.14
Z avail 1.17 0.82
V (ft/sec) 1.5 1.9
T (psf) 0.1 0.2
ft, Bottom Width (measured at top of lining) ft, depth (measured at top of lining) slope
Anti-Seep Collar: Anti-Seep Collar Size = 2 * Barrel Dia Anti-Seep Collar Size (ft) = 4 Use Anti-Seep Collar Size (ft) = 4
x4
SB Dims SB 05.xlsx
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #5
Sheet: 4
Of:
Minimum Concrete Base for Riser: Diameter of Riser (in) = 48 Avg Density of Concrete (lbs/cf) = Density of Water (lbs/cf) =
From Hydrograph 87.6 62.4
Riser Displacement (cf) = 66.60 Convert cf to cy = Min Concrete Needed (cy) = Width & Length (ft) = Thickness (ft) = Anti-Vortex Device: Diameter of Riser (in) = Cylinder Diameter (in) = Cylinder Thickness (gage) = Cylinder Height (in) =
4
Pi * (DR/24)2 * Total Ht of Riser
27-1 1.76 5 1.9
48 78 16 25
From Hydrograph Ref 3, III-104, Table 3.14-D
Determine Tailwater conditions to size outlet apron Use Normal Depth Procedure (Manning's Eqn.) A*R2/3 = Q*n/1.49 s0.5
Area (A)= bd+z(d^2)
Z req = Q*n/1.49s0.5
R=Area/(b+2d((z^2)+1)^.5)
n= Vp (ft/sec) = Side Slope (z) = s (ft/ft) = Bottom Width (ft) = QB (cfs) =
Q (cfs) 5.1
Zreq 1.66
0.069 9 5 0.02 12 5.1 Flow Depth d (ft) 0.51
Ref 2, II-7
Zav = A*R2/3
6-inch diameter Rip Rap, Lined Channel Permissible Velocity for lining enter X for X:1 Outlet Slope (estimated) 6 * Barrel Diameter Peak Flow out of the barrel 25-yr Hydrograph
A (sf) 7.4
R (ft) 0.43
Zav 4.22
V (ft/sec) 0.7
Flow Depth = Tailwater, d (ft) = 0.51 0.5* Barrel Diameter (ft) = 1.00 Minimum Tailwater Conditions: d0.5*Diameter of Outlet Pipe Since the Tailwater is less than half of the diameter of the outlet, use Minimum Tailwater conditions. Barrel Diameter (ft) 2
Entrance (ft) 6
Length (ft) 10
Outlet Width (ft) 12
Median Rip Rap Size d50 0.3
Ref 1, 8.06.3
Selected Rip Rap Size (in) Class A
Conclusion The basin can contain the 10-yr storm and pass the 100-yr storm without overtopping the berm.
SB Dims SB 05.xlsx
I Job No. 06985-10570-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow
Diameter of Riser (in) = Circumference of Riser (in) = Height of Riser from bottom of barrel (in) = Vertical spacing between holes (in) = Water Stage increment (ft)
48 150.8 64 0 0.05
l
Computed: PAW Date: 12/31/14 Checked: EAW Date: 1/2/15 Sheet 1 Of 2
From Hydrograph center to center
Orifice Equation Q = Cd * A * (2 * g * h)0.5 Q = cfs, discharge Cd = 0.6 coefficient of discharge A = sf, cross sectional area
Ref 1, p III-11
ft/sec2, gravity g = 32.2 h = ft, driving head measured from the center of the pipe
Row Holes per row Hole Diameter (in) Spacing edge to edge (in) Inlet Area (sf) Hole Stage (in) Hole Stage (ft)
1 0 0.75
2 0 0.75
Perforations 3 0 0.75
4 0 0.75
5 0 0.75
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
Skimmer 2
# of skimmers
Water Stage (ft) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Total Flow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.00 0.00 0.29 0.00 0.00 0.00 0.00 0.00 0.34 0.00 0.00 0.00 0.00 0.00 0.39 0.00 0.00 0.00 0.00 0.00 0.44 0.00 0.00 0.00 0.88 0.88 0.49 0.00 0.00 0.00 0.88 0.88 0.54 0.00 0.00 0.00 0.88 0.88 0.59 0.00 0.00 0.00 0.88 0.88 0.64 0.00 0.00 0.00 0.88 0.88 0.69 0.00 0.00 0.00 0.88 0.88 0.74 0.00 0.00 0.00 0.88 0.88 0.79 0.00 0.00 0.00 0.88 0.88 0.84 0.00 0.00 0.00 0.88 0.88 0.89 0.00 0.00 0.00 0.88 0.88 0.94 0.00 0.00 0.00 0.88 0.88 0.99 0.00 0.00 0.00 0.88 0.88 1.04 0.00 0.00 0.00 0.88 0.88 1.09 0.00 0.00 0.00 0.88 0.88 1.14 0.00 0.00 0.00 0.88 0.88 1.19 0.00 0.00 0.00 0.88 0.88 1.24 0.00 0.00 0.00 0.88 0.88 1.29 0.00 0.00 0.00 0.88 0.88 1.34 0.00 0.00 0.00 0.88 0.88 1.39 0.00 0.00 0.00 0.88 0.88 1.44 0.00 0.00 0.00 0.88 0.88 1.49 0.00 0.00 0.00 0.88 0.88 1.54 0.00 0.00 0.00 0.88 0.88 1.59 0.00 0.00 0.00 0.88 0.88 SB 05.xlsx
Pipe Perf-Skimmer
I Job No. 06985-10570-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow 1.64 1.69 1.74 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.59 2.64 2.69 2.74 2.79 2.84 2.89 2.94 2.99 3.04 3.09 3.14 3.19 3.24 3.29 3.34 3.39 3.44 3.49 3.54 3.59 3.64 3.69 3.74 3.79 3.84 3.89 3.94 3.99
SB 05.xlsx
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
l
Computed: PAW Date: 12/31/14 Checked: EAW Date: 1/2/15 Sheet 2 Of 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
Pipe Perf-Skimmer
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: __1__of _2_
Sediment Basin #
Qp =
301.78
cfs
Tp =
28.73
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 3.3 5.3 6.0 7.0 20 48 0
b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
260.30 261.00 262.00
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 3.6 0 0.0 0.00 0.00 14.2 431 0.0 0.00 0.00 31.3 2,136 0.0 0.00 0.00 54.1 5,895 0.1 0.00 0.00 81.6 12,393 0.1 0.00 0.00 112.3 22,181 0.2 0.00 0.00 144.9 35,658 0.3 0.00 0.00 177.7 53,042 0.5 0.88 0.88 209.3 74,157 0.7 0.88 0.88 238.1 99,061 0.9 0.88 0.88 262.7 127,420 1.1 0.88 0.88 282.0 158,736 1.3 0.88 0.88 295.1 192,369 1.6 0.88 0.88 301.3 227,570 1.9 0.88 0.88 300.3 263,514 2.1 0.88 0.88 292.2 299,341 2.4 0.88 0.88 277.4 334,197 2.7 0.88 0.88 256.9 367,275 2.9 0.88 0.88 234.7 397,889 3.1 0.88 0.88 214.4 425,835 3.3 0.88 0.88 195.8 451,346 3.5 0.88 0.88 178.9 474,630 3.7 0.88 0.88 163.4 495,882 3.8 0.88 0.88 149.3 515,277 3.9 0.88 0.88 136.3 532,975 4.1 0.88 0.88 124.5 549,123 4.2 0.88 0.88 113.8 563,856 4.3 0.88 0.88 103.9 577,296 4.4 0.88 0.88 94.9 589,555 4.5 0.88 0.88 86.7 600,734 4.5 0.88 0.88 79.2 610,928 4.6 0.88 0.88 72.4 620,222 4.7 0.88 0.88 66.1 628,693 4.7 0.88 0.88 60.4 636,413 4.8 0.88 0.88 55.2 643,447 4.8 0.88 0.88 50.4 649,854 4.9 0.88 0.88 46.0 655,688 4.9 0.88 0.88 42.0 660,998 5.0 0.88 0.88 38.4 665,832 5.0 0.88 0.88 35.1 670,228 5.0 0.88 0.88 32.0 674,226 5.0 0.88 0.88
SB 05.xlsx
Colon
10 - year Storm Event
255.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
5
Phase 1
4.0E-03 2 100% 5.3 1.8 1.8 0.0
1.1 114,650
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 260.29 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77
Bound Discharge [cfs] 0.00 0.00 170.58 195.81 213.72 227.85 239.58 249.59 258.28 265.85 272.57 278.55 283.88 288.62 292.83 296.55 299.83 302.69 305.16 307.28 309.08 310.64 311.99 313.17 314.20 315.12 315.93 316.65 317.30 317.87 318.39 318.85 319.26 319.64 319.97 320.28 320.55 320.80 321.02 321.22 321.41 321.57
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 77,537 N/A 89,003 N/A 97,144 N/A 103,570 N/A 108,900 N/A 113,449 N/A 117,400 100% 120,840 100% 123,895 100% 126,613 100% 129,034 100% 131,190 100% 133,104 100% 134,798 100% 136,287 100% 137,587 100% 138,711 100% 139,672 100% 140,492 100% 141,198 100% 141,812 100% 142,348 100% 142,820 100% 143,236 100% 143,605 100% 143,933 100% 144,226 100% 144,487 100% 144,722 100% 144,932 100% 145,120 100% 145,290 100% 145,443 100% 145,581 100% 145,705 100% 145,818 100% 145,919 100% 146,011 100% 146,094 100% 146,169 100% SB 10-yr (P1) HG
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: __2__of _2_
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 05.xlsx
29.3 26.7 24.4 22.3 20.4 18.6 17.0 15.5 14.2 13.0 11.8 10.8 9.9 9.0 8.2 7.5 6.9 6.3 5.7 5.2 4.8 4.4 4.0 3.7 3.3 3.0 2.8 2.5 2.3 2.1 1.9 1.8 1.6 1.5 1.3 1.2 1.1 1.0 0.9 0.9 0.8 0.7 0.7 0.6 0.5 0.5 0.5 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1
677,859 681,160 684,157 686,876 689,342 691,576 693,598 695,427 697,080 698,571 699,915 701,124 702,210 703,184 704,055 704,833 705,525 706,138 706,681 707,158 707,575 707,938 708,251 708,519 708,745 708,934 709,087 709,209 709,303 709,369 709,412 709,433 709,433 709,415 709,381 709,331 709,267 709,190 709,101 709,002 708,893 708,775 708,649 708,516 708,376 708,229 708,077 707,920 707,758 707,591 707,421 707,247 707,070 706,890 706,707 706,522 706,334 706,144 705,952 705,759 705,564 705,367
5.1 5.1 5.1 5.1 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77
321.72 321.85 321.98 322.09 322.19 322.28 322.36 322.43 322.50 322.56 322.61 322.66 322.70 322.74 322.77 322.80 322.83 322.86 322.88 322.90 322.91 322.93 322.94 322.95 322.96 322.97 322.97 322.98 322.98 322.98 322.98 322.99 322.99 322.98 322.98 322.98 322.98 322.98 322.97 322.97 322.96 322.96 322.95 322.95 322.94 322.94 322.93 322.93 322.92 322.91 322.91 322.90 322.89 322.89 322.88 322.87 322.86 322.86 322.85 322.84 322.83 322.83
146,236 146,298 146,353 146,403 146,448 146,489 146,526 146,559 146,589 146,616 146,641 146,662 146,682 146,699 146,715 146,729 146,741 146,752 146,762 146,771 146,778 146,785 146,790 146,795 146,799 146,802 146,805 146,807 146,809 146,810 146,811 146,811 146,811 146,811 146,810 146,810 146,808 146,807 146,805 146,804 146,802 146,800 146,797 146,795 146,793 146,790 146,787 146,784 146,781 146,778 146,775 146,772 146,769 146,766 146,763 146,759 146,756 146,753 146,749 146,746 146,742 146,739
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #5 Colon Mine Phase 1 Hydrograph 10-Yr Storm
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: __1_of __2_
Qp = Tp =
252.52 28.56 2 1.0%
dT = Max of
or
Sediment Basin # 5
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 3.3 5.3 6 7 20 48 0
Phase 2 10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
260.30 261.00 262.00
255.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 3.0 0 0.0 0.00 0.00 12.0 365 0.0 0.00 0.00 26.5 1,809 0.0 0.00 0.00 45.8 4,991 0.1 0.00 0.00 69.0 10,489 0.1 0.00 0.00 94.9 18,769 0.2 0.00 0.00 122.4 30,161 0.3 0.00 0.00 150.0 44,847 0.4 0.00 0.00 176.5 62,850 0.6 0.88 0.88 200.6 83,819 0.8 0.88 0.88 221.1 107,677 0.9 0.88 0.88 237.0 133,993 1.2 0.88 0.88 247.6 162,218 1.4 0.88 0.88 252.3 191,713 1.6 0.88 0.88 250.9 221,774 1.8 0.88 0.88 243.6 251,675 2.1 0.88 0.88 230.6 280,692 2.3 0.88 0.88 212.9 308,147 2.5 0.88 0.88 194.3 333,478 2.7 0.88 0.88 177.4 356,585 2.8 0.88 0.88 162.0 377,663 3.0 0.88 0.88 147.9 396,889 3.1 0.88 0.88 135.0 414,423 3.2 0.88 0.88 123.3 430,413 3.3 0.88 0.88 112.5 444,993 3.5 0.88 0.88 102.7 458,285 3.5 0.88 0.88 93.8 470,403 3.6 0.88 0.88 85.6 481,447 3.7 0.88 0.88 78.2 491,512 3.8 0.88 0.88 71.4 500,683 3.8 0.88 0.88 65.2 509,037 3.9 0.88 0.88 59.5 516,646 4.0 0.88 0.88 54.3 523,574 4.0 0.88 0.88 49.6 529,881 4.1 0.88 0.88 45.3 535,621 4.1 0.88 0.88 41.3 540,842 4.1 0.88 0.88 37.7 545,591 4.2 0.88 0.88 34.5 549,908 4.2 0.88 0.88 31.5 553,831 4.2 0.88 0.88 28.7 557,395 4.2 0.88 0.88 26.2 560,629 4.3 0.88 0.88 23.9 563,564 4.3 0.88 0.88
SB 05.xlsx
Colon
WEIR FLOW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4.0E-03 2 100% 4.5 1.8 1.8 0.0
1.1 114,650
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 259.46 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
BARREL TOTAL Bound Estimated CAPACIT OUTFLOW Discharge Surface Y [cfs] [cfs] [cfs] Area (sf) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 168.15 76,434 0.00 0.00 193.02 87,736 0.00 0.00 210.67 95,759 0.00 0.00 224.60 102,091 0.00 0.00 236.15 107,343 0.00 0.00 246.01 111,823 0.00 0.00 254.57 115,713 0.88 1.77 262.08 119,129 0.88 1.77 268.67 122,123 0.88 1.77 274.54 124,789 0.88 1.77 279.76 127,163 0.88 1.77 284.41 129,276 0.88 1.77 288.53 131,151 0.88 1.77 292.18 132,808 0.88 1.77 295.38 134,264 0.88 1.77 298.17 135,533 0.88 1.77 300.58 136,628 0.88 1.77 302.64 137,562 0.88 1.77 304.39 138,359 0.88 1.77 305.90 139,045 0.88 1.77 307.21 139,642 0.88 1.77 308.36 140,163 0.88 1.77 309.37 140,621 0.88 1.77 310.26 141,026 0.88 1.77 311.04 141,384 0.88 1.77 311.75 141,702 0.88 1.77 312.37 141,986 0.88 1.77 312.93 142,240 0.88 1.77 313.43 142,466 0.88 1.77 313.87 142,670 0.88 1.77 314.28 142,852 0.88 1.77 314.64 143,017 0.88 1.77 314.96 143,164 0.88 1.77 315.25 143,297 0.88 1.77 315.52 143,417 0.88 1.77 315.76 143,525 0.88 1.77 315.97 143,623 0.88 1.77 316.16 143,711 0.88 1.77 316.34 143,790 0.88 1.77 316.50 143,862 0.88 1.77 316.64 143,927
Settling Efficiency [%] N/A N/A N/A N/A N/A N/A N/A N/A N/A 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: __2_of __2_
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 05.xlsx
21.9 20.0 18.2 16.6 15.2 13.9 12.7 11.6 10.6 9.6 8.8 8.0 7.3 6.7 6.1 5.6 5.1 4.6 4.2 3.9 3.5 3.2 2.9 2.7 2.5 2.2 2.0 1.9 1.7 1.6 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.8 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1
566,225 568,636 570,818 572,793 574,577 576,187 577,639 578,946 580,121 581,175 582,119 582,962 583,714 584,381 584,972 585,494 585,951 586,350 586,696 586,994 587,247 587,460 587,635 587,777 587,888 587,971 588,029 588,063 588,075 588,068 588,044 588,002 587,946 587,877 587,795 587,702 587,598 587,485 587,363 587,234 587,097 586,954 586,805 586,650 586,491 586,326 586,158 585,986 585,810 585,632 585,450 585,266 585,079 584,890 584,699 584,506 584,312 584,116 583,919 583,720
4.3 4.3 4.3 4.3 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77 1.77
316.77 316.88 316.99 317.08 317.17 317.24 317.31 317.38 317.43 317.48 317.52 317.56 317.60 317.63 317.66 317.68 317.70 317.72 317.74 317.75 317.76 317.77 317.78 317.79 317.79 317.80 317.80 317.80 317.80 317.80 317.80 317.80 317.80 317.79 317.79 317.79 317.78 317.78 317.77 317.76 317.76 317.75 317.74 317.74 317.73 317.72 317.71 317.71 317.70 317.69 317.68 317.67 317.66 317.65 317.65 317.64 317.63 317.62 317.61 317.60
143,985 144,038 144,086 144,129 144,167 144,202 144,233 144,261 144,287 144,309 144,329 144,347 144,363 144,378 144,390 144,401 144,411 144,420 144,427 144,433 144,439 144,443 144,447 144,450 144,452 144,454 144,455 144,456 144,456 144,456 144,455 144,455 144,453 144,452 144,450 144,448 144,446 144,444 144,441 144,438 144,435 144,432 144,429 144,426 144,422 144,419 144,415 144,412 144,408 144,404 144,400 144,396 144,392 144,388 144,384 144,380 144,376 144,372 144,368 144,364
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0 TOTAL OUTFLOW [cfs] INFLOW [cfs]
150
3.0
STAGE [ft] 100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE (ft)
FLOW (cfs)
Sediment Basin #5 Colon Mine Phase 2 Hydrograph 10-Yr Storm
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: __1__of __2__
Qp = Tp =
310.28 28.91 dT = Max of 2 or 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 3.3 5.3 6.0 7.0 20 48 0
Sediment Basin # 5
Phase 2 25 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
260.30 261.00 262.00
255.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 05.xlsx
Colon
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 3.6 0 0.0 0.00 0.00 14.4 438 0.0 0.00 0.00 31.8 2,169 0.0 0.00 0.00 55.0 5,987 0.1 0.00 0.00 82.9 12,588 0.1 0.00 0.00 114.2 22,538 0.2 0.00 0.00 147.4 36,244 0.3 0.00 0.00 181.0 53,937 0.5 0.88 0.88 213.4 75,449 0.7 0.88 0.88 243.0 100,845 0.9 0.88 0.88 268.5 129,797 1.1 0.88 0.88 288.7 161,808 1.4 0.88 0.88 302.6 196,239 1.6 0.88 0.88 309.5 232,336 1.9 0.88 0.88 309.2 269,266 2.2 0.88 0.88 301.6 306,158 2.5 0.88 0.88 287.2 342,142 2.7 0.88 0.88 266.5 376,392 3.0 0.88 0.88 243.9 408,163 3.2 0.88 0.88 222.9 437,221 3.4 0.88 0.88 203.8 463,761 3.6 0.88 0.88 186.2 488,001 3.8 0.88 0.88 170.2 510,138 3.9 0.88 0.88 155.6 530,353 4.1 0.88 0.88 142.2 548,811 4.2 0.88 0.88 130.0 565,664 4.3 0.88 0.88 118.8 581,049 4.4 0.88 0.88 108.6 595,093 4.5 0.88 0.88 99.2 607,911 4.6 0.88 0.88 90.7 619,608 4.7 0.88 0.88 82.9 630,281 4.7 0.88 0.88 75.8 640,019 4.8 0.88 0.88 69.3 648,900 4.9 0.88 0.88 63.3 656,999 4.9 0.88 0.88 57.9 664,384 5.0 0.88 0.88 52.9 671,115 5.0 0.88 0.88 48.3 677,250 5.1 0.88 0.88 44.2 682,838 5.1 0.88 0.88 40.4 687,928 5.1 0.88 0.88 36.9 692,562 5.2 0.88 0.88 33.7 696,779 5.2 0.88 0.88 30.8 700,615 5.2 0.88 0.88
4.0E-03 2 100% 5.4 5.1 5.1 0.0
1.1 114,650
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 260.4 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFL [cfs] [cfs] OW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77 0.00 0.88 1.77
Bound Discharge [cfs] 0.00 0.00 170.80 196.06 214.00 228.16 239.91 249.94 258.65 266.25 272.99 278.99 284.35 289.11 293.35 297.11 300.41 303.31 305.81 307.95 309.79 311.36 312.73 313.93 314.99 315.92 316.74 317.47 318.13 318.71 319.24 319.71 320.13 320.51 320.85 321.16 321.44 321.69 321.92 322.13 322.32 322.48 322.64
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 77,638 N/A 89,120 N/A 97,273 N/A 103,709 N/A 109,049 N/A 113,608 N/A 117,569 100% 121,021 100% 124,086 100% 126,815 100% 129,248 100% 131,415 100% 133,342 100% 135,049 100% 136,552 100% 137,866 100% 139,005 100% 139,979 100% 140,812 100% 141,529 100% 142,152 100% 142,696 100% 143,175 100% 143,598 100% 143,973 100% 144,306 100% 144,604 100% 144,870 100% 145,108 100% 145,322 100% 145,514 100% 145,687 100% 145,843 100% 145,983 100% 146,110 100% 146,225 100% 146,329 100% 146,422 100% 146,507 100% 146,584 100% 146,653 100% SB 25-yr HG (P2)
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: __2__of __2__
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 05.xlsx
28.2 25.8 23.5 21.5 19.7 18.0 16.4 15.0 13.7 12.5 11.5 10.5 9.6 8.8 8.0 7.3 6.7 6.1 5.6 5.1 4.7 4.3 3.9 3.6 3.3 3.0 2.7 2.5 2.3 2.1 1.9 1.7 1.6 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.8 0.7 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1
704,103 707,273 710,152 712,765 715,124 717,228 719,090 720,725 722,150 723,382 724,437 725,332 726,080 726,696 727,193 727,583 727,878 728,087 728,220 728,285 728,290 728,243 728,148 728,014 727,843 727,642 727,414 727,163 726,892 726,605 726,304 725,991 725,668 725,339 725,003 724,662 724,319 723,974 723,627 723,281 722,935 722,590 722,247 721,907 721,569 721,235 720,904 720,576 720,253 719,933 719,617 719,306 718,999 718,696 718,398 718,103 717,814 717,528 717,247 716,969 716,696
5.3 5.3 5.3 5.3 5.3 5.3 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.3 5.3 5.3 5.3 5.3 5.3 5.3
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
0.88 0.88 0.88 0.93 1.07 1.23 1.40 1.57 1.73 1.88 2.01 2.12 2.22 2.31 2.38 2.43 2.47 2.50 2.52 2.53 2.53 2.52 2.51 2.49 2.47 2.44 2.41 2.37 2.33 2.29 2.25 2.21 2.17 2.12 2.08 2.04 1.99 1.95 1.91 1.86 1.82 1.78 1.74 1.70 1.66 1.63 1.59 1.55 1.52 1.49 1.45 1.42 1.39 1.36 1.34 1.31 1.28 1.26 1.23 1.21 1.19
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.88 0.88 0.88 31.36 31.42 31.47 31.51 31.55 31.59 31.62 31.64 31.67 31.68 31.70 31.71 31.72 31.73 31.73 31.74 31.74 31.74 31.74 31.74 31.73 31.73 31.72 31.72 31.71 31.70 31.70 31.69 31.68 31.67 31.67 31.66 31.65 31.64 31.63 31.62 31.62 31.61 31.60 31.59 31.58 31.57 31.57 31.56 31.55 31.54 31.53 31.53 31.52 31.51 31.50 31.50 31.49 31.48 31.47 31.47 31.46 31.45
1.77 1.77 1.77 1.86 2.13 2.46 2.80 3.14 3.46 3.75 4.02 4.25 4.44 4.61 4.75 4.86 4.94 5.00 5.04 5.06 5.06 5.05 5.02 4.98 4.93 4.88 4.81 4.74 4.67 4.59 4.51 4.42 4.33 4.25 4.16 4.07 3.99 3.90 3.81 3.73 3.64 3.56 3.48 3.40 3.33 3.25 3.18 3.11 3.04 2.97 2.91 2.85 2.79 2.73 2.67 2.62 2.56 2.51 2.46 2.42 2.37
322.78 322.90 323.01 323.12 323.21 323.29 323.36 323.43 323.48 323.53 323.57 323.60 323.63 323.66 323.67 323.69 323.70 323.71 323.71 323.72 323.72 323.71 323.71 323.71 323.70 323.69 323.68 323.67 323.66 323.65 323.64 323.63 323.62 323.60 323.59 323.58 323.56 323.55 323.54 323.52 323.51 323.50 323.48 323.47 323.46 323.44 323.43 323.42 323.41 323.39 323.38 323.37 323.36 323.35 323.33 323.32 323.31 323.30 323.29 323.28 323.27
146,716 146,773 146,824 146,871 146,913 146,950 146,983 147,011 147,036 147,058 147,077 147,092 147,105 147,116 147,125 147,131 147,137 147,140 147,143 147,144 147,144 147,143 147,141 147,139 147,136 147,132 147,129 147,124 147,119 147,114 147,109 147,104 147,098 147,092 147,086 147,080 147,074 147,068 147,062 147,056 147,050 147,044 147,038 147,032 147,026 147,020 147,015 147,009 147,003 146,997 146,992 146,986 146,981 146,976 146,970 146,965 146,960 146,955 146,950 146,945 146,940
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 25-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
OUTFLOW INFLOW [cfs]
200
STAGE [ft]
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #5 Colon Mine Phase 2 Hydrograph 25-Yr Storm
Computed By: PAW Date: 12/31/14 Checked By: EAW
Date: 1/2/15
Sheet: __1__of __2___
Qp = Tp = dT = Max of
or
402.1 29.4 2 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 3.3 5.3 6.0 7.0 20 48 0
Sediment Basin # 5
Phase 2 100 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
260.30 261.00 262.00
255.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 05.xlsx
Colon
4.0E-03 2 97% 6.1 67.5 64.7 2.9
1.1 114,650
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 261.1 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
WEIR BARREL TOTAL Bound RISER INFLOW STORAGE STAGE Skimmer CAPACIT FLOW CAPACITY OUTFLOW Discharge [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] [cfs] [cfs] [cfs] [cfs] 0.0 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 4.6 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 18.1 549 0.0 0.00 0.00 0.00 0.00 0.00 174.16 39.9 2,719 0.0 0.00 0.00 0.00 0.00 0.00 199.93 69.1 7,511 0.1 0.00 0.00 0.00 0.00 0.00 218.23 104.3 15,802 0.2 0.00 0.00 0.00 0.00 0.00 232.68 143.8 28,315 0.3 0.00 0.00 0.00 0.00 0.00 244.67 186.0 45,576 0.4 0.00 0.00 0.00 0.00 0.00 254.92 228.9 67,900 0.6 0.88 0.88 0.00 0.88 1.77 263.84 270.5 95,154 0.8 0.88 0.88 0.00 0.88 1.77 271.62 308.9 127,401 1.1 0.88 0.88 0.00 0.88 1.77 278.55 342.4 164,259 1.4 0.88 0.88 0.00 0.88 1.77 284.71 369.5 205,141 1.7 0.88 0.88 0.00 0.88 1.77 290.22 389.0 249,274 2.0 0.88 0.88 0.00 0.88 1.77 295.14 399.8 295,737 2.4 0.88 0.88 0.00 0.88 1.77 299.52 401.7 343,506 2.7 0.88 0.88 0.00 0.88 1.77 303.41 394.4 391,494 3.1 0.88 0.88 0.00 0.88 1.77 306.85 378.3 438,606 3.4 0.88 0.88 0.00 0.88 1.77 309.87 354.1 483,786 3.7 0.88 0.88 0.00 0.88 1.77 312.50 325.1 526,066 4.0 0.88 0.88 0.00 0.88 1.77 314.77 297.6 564,868 4.3 0.88 0.88 0.00 0.88 1.77 316.70 272.4 600,369 4.5 0.88 0.88 0.00 0.88 1.77 318.37 249.4 632,846 4.8 0.88 0.88 0.00 0.88 1.77 319.82 228.2 662,557 5.0 0.88 0.88 0.00 0.88 1.77 321.09 208.9 689,735 5.2 0.88 0.88 0.00 0.88 1.77 322.20 191.2 714,594 5.3 0.88 1.03 0.00 31.40 2.06 323.19 175.1 737,297 5.5 0.88 3.99 0.00 31.96 7.97 324.06 160.2 757,347 5.6 0.88 8.16 0.00 32.44 16.33 324.81 146.7 774,616 5.7 0.88 12.59 0.00 32.85 25.19 325.44 134.3 789,195 5.8 0.88 16.83 0.00 33.19 33.67 325.97 122.9 801,267 5.9 0.88 20.66 0.00 33.47 41.31 326.39 112.5 811,057 6.0 0.88 23.95 0.00 33.69 47.89 326.73 103.0 818,810 6.0 0.88 26.67 0.29 33.87 53.62 327.00 94.3 824,732 6.1 0.88 28.81 1.07 34.00 58.69 327.21 86.3 829,001 6.1 0.88 30.39 1.81 34.10 62.59 327.35 79.0 831,844 6.1 0.88 31.46 2.37 34.16 65.28 327.45 72.3 833,487 6.1 0.88 32.08 2.72 34.20 66.88 327.50 66.2 834,137 6.1 0.88 32.33 2.86 34.21 67.51 327.53 60.6 833,976 6.1 0.88 32.26 2.83 34.21 67.35 327.52 55.4 833,163 6.1 0.88 31.96 2.65 34.19 66.56 327.49 50.8 831,829 6.1 0.88 31.45 2.37 34.16 65.27 327.45 46.5 830,087 6.1 0.88 30.79 2.02 34.12 63.61 327.39 42.5 828,029 6.1 0.88 30.03 1.63 34.07 61.69 327.32
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 79,166 N/A 90,876 N/A 99,193 N/A 105,762 N/A 111,216 N/A 115,874 N/A 119,926 100% 123,466 100% 126,611 100% 129,415 100% 131,919 100% 134,154 100% 136,145 100% 137,914 100% 139,477 100% 140,850 100% 142,045 100% 143,075 100% 143,956 100% 144,714 100% 145,373 100% 145,949 100% 146,455 100% 146,903 100% 147,300 100% 147,641 100% 147,928 99% 148,166 99% 148,360 99% 148,515 98% 148,637 98% 148,730 97% 148,796 97% 148,840 97% 148,865 97% 148,875 97% 148,873 97% 148,860 97% 148,840 97% 148,813 97% 148,781 97% SB 100-yr HG (P2)
Computed By: PAW Date: 12/31/14 Checked By: EAW
Date: 1/2/15
Sheet: __2__of __2___
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 05.xlsx
38.9 35.6 32.6 29.9 27.3 25.0 22.9 21.0 19.2 17.6 16.1 14.7 13.5 12.3 11.3 10.3 9.5 8.7 7.9 7.3 6.6 6.1 5.6 5.1 4.7 4.3 3.9 3.6 3.3 3.0 2.7 2.5 2.3 2.1 1.9 1.8 1.6 1.5 1.4 1.2 1.1 1.0 0.9 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2
825,729 823,250 820,640 817,938 815,170 812,357 809,504 806,633 803,763 800,910 798,088 795,307 792,576 789,902 787,289 784,742 782,263 779,855 777,517 775,251 773,057 770,933 768,880 766,897 764,981 763,131 761,346 759,624 757,962 756,360 754,816 753,327 751,891 750,507 749,172 747,885 746,645 745,449 744,295 743,182 742,109 741,073 740,073 739,108 738,177 737,277 736,409 735,569 734,758 733,974 733,215 732,482 731,772 731,085 730,420 729,776 729,152 728,548 727,962 727,393
6.1 6.1 6.0 6.0 6.0 6.0 6.0 5.9 5.9 5.9 5.9 5.9 5.9 5.8 5.8 5.8 5.8 5.8 5.8 5.7 5.7 5.7 5.7 5.7 5.7 5.7 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4
0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88
29.18 28.27 27.32 26.36 25.38 24.40 23.41 22.44 21.48 20.54 19.62 18.74 17.88 17.05 16.26 15.49 14.76 14.07 13.40 12.77 12.17 11.59 11.05 10.53 10.04 9.57 9.13 8.71 8.31 7.93 7.58 7.24 6.92 6.61 6.32 6.05 5.79 5.55 5.31 5.09 4.88 4.68 4.49 4.32 4.15 3.98 3.83 3.69 3.55 3.42 3.29 3.17 3.06 2.95 2.85 2.75 2.66 2.57 2.48 2.40
1.23 0.85 0.49 0.20 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
34.02 33.97 33.91 33.85 33.78 33.72 33.66 33.59 33.52 33.46 33.39 33.33 33.27 33.20 33.14 33.08 33.03 32.97 32.92 32.86 32.81 32.76 32.71 32.67 32.62 32.58 32.53 32.49 32.45 32.42 32.38 32.34 32.31 32.28 32.24 32.21 32.18 32.15 32.13 32.10 32.07 32.05 32.03 32.00 31.98 31.96 31.94 31.92 31.90 31.88 31.86 31.84 31.82 31.81 31.79 31.78 31.76 31.75 31.73 31.72
59.58 57.38 55.14 52.91 50.77 48.79 46.83 44.88 42.96 41.08 39.25 37.47 35.76 34.10 32.51 30.99 29.53 28.14 26.81 25.54 24.33 23.18 22.09 21.06 20.07 19.14 18.26 17.42 16.62 15.87 15.15 14.47 13.83 13.22 12.65 12.10 11.58 11.09 10.62 10.18 9.76 9.37 8.99 8.63 8.29 7.97 7.66 7.37 7.09 6.83 6.58 6.34 6.12 5.90 5.69 5.50 5.31 5.14 4.97 4.81
327.24 327.15 327.07 326.97 326.88 326.78 326.68 326.58 326.48 326.38 326.28 326.18 326.09 325.99 325.90 325.81 325.72 325.63 325.55 325.46 325.39 325.31 325.23 325.16 325.09 325.02 324.96 324.89 324.83 324.77 324.72 324.66 324.61 324.56 324.51 324.46 324.41 324.37 324.32 324.28 324.24 324.20 324.16 324.13 324.09 324.06 324.03 323.99 323.96 323.93 323.90 323.88 323.85 323.82 323.80 323.77 323.75 323.73 323.70 323.68
148,745 148,707 148,666 148,624 148,580 148,536 148,491 148,445 148,400 148,354 148,309 148,265 148,221 148,177 148,135 148,094 148,053 148,014 147,976 147,939 147,902 147,867 147,833 147,800 147,769 147,738 147,708 147,679 147,651 147,624 147,598 147,573 147,549 147,525 147,503 147,481 147,460 147,439 147,420 147,401 147,382 147,365 147,347 147,331 147,315 147,299 147,284 147,270 147,256 147,242 147,229 147,217 147,204 147,192 147,181 147,170 147,159 147,148 147,138 147,128
97% 97% 98% 98% 98% 98% 98% 98% 98% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 100-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
OUTFLOW 250
INFLOW [cfs]
5.0
STAGE [ft] 200
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #5 Colon Mine Phase 2 Hydrograph 100-Yr Storm
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #6
Sheet: 1
Of: 4
Objective
Design the temporary sediment basin to contain the 25-year storm.
References 1. NC Erosion and Sediment Control Planning and Design Manual. 2. "Elements of Urban Stormwater Design" by H. Rooney Malcom, P.E. 3. NOAA Atlas 14, Volume 2, Version 3 4. VA Erosion and Sediment Control Handbook Given Phase Storm Event (yrs) = Total Drainage Area A (ac) = Disturbed Area (ac) = Curve Number CN = Rainfall Depth P (in) = Peak Flow Qp (cfs) =
1 10 15.3 15.3 89 5.28 93.60
1 25 15.3 15.3 89 6.28 114.53
Hydrographs (24-hr rainfall) Hydrographs
Ref 3
Design Criteria Required sediment storage Required sediment storage
1,800 27,540
cf / acre of drainage cf
Required Surface Area Required Surface Area (SF)
435 49,821
sf/cfs of the 10-yr storm peak flow (based on the largest Phase in cfs) of the 10-yr storm peak flow (based on the largest Phase)
Determine Shape of Basin: Measure the area of the Basin using AutoCADD. Calculate Volume of the Basin using Truncated Pyramid Method. Shape factor used in hydrographs basin depth may be gretaer than indicated below
Elevation (ft) 249 250 251 252 253 254 255
Depth (ft) 0 1 2 3 4 5 6
Area (sf) 30,723 34,084 37,519 41,027 44,808 48,997 52,981
Volume (cf) 32,389 35,788 39,260 42,904 46,887 50,976
Design Sediment Depth (ft) = 3 Sediment Storage (cf) = 107,437 Design Surface Area Depth (ft) = 3 Surface Area (sf) = 41,027
Cumulative Vol (cf) 32,389 68,177 107,437 150,340 197,227 248,203
Cumulative Vol (cy) 1,200 2,525 3,979 5,568 7,305 9,193
Required Sediment Storage Achieved
Increase Surface Area
SB Dims SB 06
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #6
Sheet: 2
Of: 4
Select Skimmer A. R. Jarrett Method D = [Q / (2,310 * (H 0.5)]0.5 D =Diameter of Orifice (inches) Q = Dewater Rate (cf/day) H = Head on orifice, varies based on skimmer size (ft) Skimmer Sizes (Inches) 1.5 2 2.5 3 4 5 6 8 Volume to Dewater (cf) = Number of Skimmers Days to Drain = Q each (cf/day) = Selected Skimmer Size (inches) = Head on Skimmer (feet) = Diameter of Orifice (inches) =
Head (ft) 0.125 0.167 0.167 0.250 0.333 0.333 0.417 0.500 107,437 1 5 21,487
assumed 0.25 cfs
5 0.333 4.0
Route the flow through the Basin Riser is not perforated, but skimmer is attached. S = (1000/CN) - 10 2 Runoff Depth Q* (inches) = (P-0.2S) /(P+0.8S) TP (min) = 60.5(Q*)A/QP/1.39
Phase Storm Event (yrs) = S= Runoff Depth Q* (inches) = Time to Peak T p (min) =
1 10 1.24 4.04 28.75
1 25 1.24 5.01 29.11
Determine Pond Storage Elevation (Z Water): Pick one point near max expected water surface and the other at the mid depth. Z1 (ft) = 3 S1 (cf)= 107,437 Z2 (ft) = 5 S2 (cf) = 197,227 b = ln(S2/S1)/ln(Z2/Z1) = 1.2 b
KS = S2/Z2 =
Ref 2, III-4
Ref 2, III-8
29,092
SB Dims SB 06
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #6
Sheet: 3
Of: 4
Determine Settling Velocity Conversion Factor =
3.281 ft/sec per m/sec
2
Gravitational Acceleration, g (m/s ) = Specific Gravity of soil (ss)=
9.81 2.6 2 o 1.14E-06m / sec @ 20 C 40.00E-06 m
Kinematic Viscosity of water (v) = Diameter of the Design Particle d 15 = Design Particle Settling Velocity
=
( g / 18 ) * [ ( s s
Route the Storm through the Basin using the Hydrograph Model Set Height of Emergency Spillway at (ft) = 6.10 Set Top of Dam at (ft) = 7.00
Ref 2, IV-11
- 1 ) / v ] d2 =
4.02E-03
ft/sec
See Hydrograph
Anti-Seep Collar: Anti-Seep Collar Size = 2 * Barrel Dia Anti-Seep Collar Size (ft) = 2 Use Anti-Seep Collar Size (ft) = 2 Minimum Concrete Base for Riser: Diameter of Riser (in) = 18 Avg Density of Concrete (lbs/cf) = Density of Water (lbs/cf) = Riser Displacement (cf) = 8.84 Convert cf to cy = Min Concrete Needed (cy) = Width & Length (ft) = Thickness (ft) = Anti-Vortex Device: Diameter of Riser (in) = Cylinder Diameter (in) = Cylinder Thickness (gage) = Cylinder Height (in) =
x2
From Hydrograph 87.6 62.4 Pi * (DR/24)2 * Total Ht of Riser
27-1 0.23 2.5 1.0
18 27 16 8
From Hydrograph Ref 4, III-104, Table 3.14-D
SB Dims SB 06
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #6
Sheet: 4
Of: 4
Determine Tailwater conditions to size outlet apron Use Normal Depth Procedure (Manning's Eqn.) A*R2/3 = Q*n/1.49 s0.5
Area (A)= bd+z(d^2)
Z req = Q*n/1.49s0.5
R=Area/(b+2d((z^2)+1)^.5)
n= Vp (ft/sec) = Side Slope (z) = s (ft/ft) = Bottom Width (ft) = QB (cfs) =
Q (cfs) 3.6
Zreq 1.18
0.069 9 5 0.02 3 3.6 Flow Depth d (ft) 0.47
Ref 2, II-7
Zav = A*R2/3
6-inch diameter Rip Rap, Lined Channel Permissible Velocity for lining enter X for X:1 Outlet Slope (estimated) 3 * Barrel Diameter Peak Flow out of the barrel 10-yr Hydrograph
A (sf) 2.5
R (ft) 0.32
Zav 1.18
Flow Depth = Tailwater, d (ft) = 0.47 0.5* Barrel Diameter (ft) = 0.50 Minimum Tailwater Conditions: d0.5*Diameter of Outlet Pipe Since the Tailwater is less than half of the diameter of the outlet, use Minimum Tailwater conditions. Barrel Diameter (ft) 1
Entrance (ft) 3
Length (ft) 8
Outlet Width (ft) 9
Median Rip Rap Size d50 0.3
V (ft/sec) 1.4 Ref 1, 8.06.3
Selected Rip Rap Size (in) Class A
Conclusion The temporary basin can contain the 25-yr storm.
SB Dims SB 06
I Job No. 0453925-237673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow
Diameter of Riser (in) = Circumference of Riser (in) = Height of Riser from bottom of barrel (in) = Vertical spacing between holes (in) = Water Stage increment (ft)
18 56.5 60 0 0.05
l
Computed: PAW Date: 3/4/15 Checked: MDP Date: 3/6/15 Sheet: 1 Of: 2
From Hydrograph center to center
Orifice Equation Q = Cd * A * (2 * g * h)0.5 Q = cfs, discharge Cd = 0.6 coefficient of discharge A = sf, cross sectional area
Ref 1, p III-11
ft/sec2, gravity g = 32.2 h = ft, driving head measured from the center of the pipe
Row Holes per row Hole Diameter (in) Spacing edge to edge (in) Inlet Area (sf) Hole Stage (in) Hole Stage (ft)
1 0 0.75
2 0 0.75
Perforations 3 0 0.75
4 0 0.75
5 0 0.75
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
Skimmer 1
# of skimmers
Water Stage (ft) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Total Flow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.00 0.00 0.29 0.00 0.00 0.00 0.00 0.00 0.34 0.00 0.00 0.00 0.25 0.25 0.39 0.00 0.00 0.00 0.25 0.25 0.44 0.00 0.00 0.00 0.25 0.25 0.49 0.00 0.00 0.00 0.25 0.25 0.54 0.00 0.00 0.00 0.25 0.25 0.59 0.00 0.00 0.00 0.25 0.25 0.64 0.00 0.00 0.00 0.25 0.25 0.69 0.00 0.00 0.00 0.25 0.25 0.74 0.00 0.00 0.00 0.25 0.25 0.79 0.00 0.00 0.00 0.25 0.25 0.84 0.00 0.00 0.00 0.25 0.25 0.89 0.00 0.00 0.00 0.25 0.25 0.94 0.00 0.00 0.00 0.25 0.25 0.99 0.00 0.00 0.00 0.25 0.25 1.04 0.00 0.00 0.00 0.25 0.25 1.09 0.00 0.00 0.00 0.25 0.25 1.14 0.00 0.00 0.00 0.25 0.25 1.19 0.00 0.00 0.00 0.25 0.25 1.24 0.00 0.00 0.00 0.25 0.25 1.29 0.00 0.00 0.00 0.25 0.25 1.34 0.00 0.00 0.00 0.25 0.25 1.39 0.00 0.00 0.00 0.25 0.25 1.44 0.00 0.00 0.00 0.25 0.25 1.49 0.00 0.00 0.00 0.25 0.25 1.54 0.00 0.00 0.00 0.25 0.25 1.59 0.00 0.00 0.00 0.25 0.25 SB 06
Pipe Perf-Skimmer
I Job No. 0453925-237673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow 1.64 1.69 1.74 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.59 2.64 2.69 2.74 2.79 2.84 2.89 2.94 2.99 3.04 3.09 3.14 3.19 3.24 3.29 3.34 3.39 3.44 3.49 3.54 3.59 3.64 3.69 3.74 3.79 3.84 3.89 3.94 3.99
SB 06
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
l
Computed: PAW Date: 3/4/15 Checked: MDP Date: 3/6/15 Sheet: 2 Of: 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
Pipe Perf-Skimmer
Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: _1__of _2__
Sediment Basin #
Qp =
93.60
cfs
Tp =
28.75
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
SB 06
Colon
1 12 4.0 5.0 6.1 7.0 10 18 0
10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
254.00 255.10 256.00
249.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
6
Phase 1
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.1 0 0.0 0.00 0.00 4.4 134 0.0 0.00 0.00 9.7 662 0.0 0.00 0.00 16.8 1,826 0.1 0.00 0.00 25.3 3,839 0.2 0.00 0.00 34.8 6,872 0.3 0.00 0.00 44.9 11,048 0.4 0.25 0.25 55.1 16,405 0.6 0.25 0.25 64.9 22,984 0.8 0.25 0.25 73.8 30,738 1.0 0.25 0.25 81.4 39,564 1.3 0.25 0.25 87.4 49,307 1.6 0.25 0.25 91.5 59,770 1.8 0.25 0.25 93.4 70,721 2.1 0.25 0.25 93.2 81,905 2.4 0.25 0.25 90.7 93,054 2.7 0.25 0.25 86.1 103,905 2.9 0.25 0.25 79.8 114,207 3.2 0.25 0.25 72.9 123,747 3.4 0.25 0.25 66.6 132,460 3.6 0.25 0.25 60.8 140,417 3.8 0.25 0.25 55.5 147,683 3.9 0.25 0.25 50.7 154,318 4.1 0.25 0.25 46.4 160,377 4.2 0.25 0.25 42.3 165,910 4.3 0.25 0.25 38.7 170,961 4.4 0.25 0.25 35.3 175,573 4.5 0.25 0.25 32.3 179,784 4.6 0.25 0.25 29.5 183,627 4.7 0.25 0.25 26.9 187,136 4.8 0.25 0.25 24.6 190,339 4.9 0.25 0.25 22.5 193,263 4.9 0.25 0.25 20.5 195,931 5.0 0.25 0.25 18.8 198,365 5.0 0.25 0.31 17.1 200,580 5.1 0.25 0.55 15.7 202,571 5.1 0.25 0.84 14.3 204,349 5.2 0.25 1.16 13.1 205,925 5.2 0.25 1.48 11.9 207,315 5.2 0.25 1.79 10.9 208,533 5.2 0.25 2.08 10.0 209,592 5.3 0.25 2.34
4.0E-03 2 100% 5.4 3.6 3.6 0.0
1.2 29,092
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 254.36 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 8.03 0.31 0.00 8.07 0.55 0.00 8.11 0.84 0.00 8.14 1.16 0.00 8.17 1.48 0.00 8.20 1.79 0.00 8.22 2.08 0.00 8.24 2.34
Bound Discharge [cfs] 0.00 0.00 32.33 41.69 49.00 55.15 60.50 65.25 69.48 73.31 76.78 79.92 82.77 85.35 87.66 89.73 91.57 93.19 94.61 95.82 96.86 97.77 98.55 99.25 99.86 100.40 100.88 101.30 101.69 102.03 102.34 102.61 102.86 103.09 103.29 103.47 103.64 103.78 103.91 104.02 104.11 104.20
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 14,693 N/A 18,952 N/A 22,273 N/A 25,068 N/A 27,500 N/A 29,657 100% 31,582 100% 33,322 100% 34,900 100% 36,329 100% 37,624 100% 38,794 100% 39,846 100% 40,787 100% 41,624 100% 42,361 100% 43,003 100% 43,555 100% 44,029 100% 44,439 100% 44,797 100% 45,112 100% 45,389 100% 45,634 100% 45,853 100% 46,047 100% 46,221 100% 46,377 100% 46,517 100% 46,643 100% 46,756 100% 46,858 100% 46,950 100% 47,033 100% 47,107 100% 47,172 100% 47,230 100% 47,281 100% 47,325 100% 47,363 100% SB 10-yr (P1) HG
Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: _2__of _2__
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 06
9.1 8.3 7.6 6.9 6.3 5.8 5.3 4.8 4.4 4.0 3.7 3.4 3.1 2.8 2.6 2.3 2.1 2.0 1.8 1.6 1.5 1.4 1.2 1.1 1.0 0.9 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0
210,507 211,290 211,954 212,510 212,969 213,340 213,633 213,855 214,015 214,119 214,174 214,185 214,157 214,096 214,004 213,887 213,747 213,588 213,412 213,222 213,020 212,808 212,588 212,360 212,128 211,892 211,652 211,411 211,168 210,925 210,683 210,441 210,200 209,962 209,725 209,491 209,259 209,031 208,806 208,584 208,365 208,150 207,939 207,731 207,527 207,327 207,130 206,937 206,748 206,563 206,381 206,203 206,029 205,858 205,691 205,527 205,366 205,209 205,055 204,905 204,757 204,612
5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2
0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
2.57 2.78 2.96 3.11 3.24 3.35 3.43 3.50 3.55 3.58 3.59 3.60 3.59 3.57 3.54 3.51 3.47 3.42 3.37 3.32 3.26 3.20 3.14 3.07 3.01 2.94 2.88 2.81 2.75 2.68 2.62 2.56 2.49 2.43 2.37 2.31 2.25 2.20 2.14 2.09 2.04 1.98 1.93 1.89 1.84 1.79 1.75 1.70 1.66 1.62 1.58 1.54 1.51 1.47 1.43 1.40 1.37 1.34 1.30 1.27 1.24 1.22
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
8.26 8.27 8.28 8.29 8.30 8.31 8.31 8.32 8.32 8.32 8.32 8.32 8.32 8.32 8.32 8.32 8.31 8.31 8.31 8.31 8.30 8.30 8.29 8.29 8.29 8.28 8.28 8.27 8.27 8.26 8.26 8.26 8.25 8.25 8.24 8.24 8.23 8.23 8.23 8.22 8.22 8.21 8.21 8.21 8.20 8.20 8.19 8.19 8.19 8.18 8.18 8.18 8.17 8.17 8.17 8.16 8.16 8.16 8.16 8.15 8.15 8.15
2.57 2.78 2.96 3.11 3.24 3.35 3.43 3.50 3.55 3.58 3.59 3.60 3.59 3.57 3.54 3.51 3.47 3.42 3.37 3.32 3.26 3.20 3.14 3.07 3.01 2.94 2.88 2.81 2.75 2.68 2.62 2.56 2.49 2.43 2.37 2.31 2.25 2.20 2.14 2.09 2.04 1.98 1.93 1.89 1.84 1.79 1.75 1.70 1.66 1.62 1.58 1.54 1.51 1.47 1.43 1.40 1.37 1.34 1.30 1.27 1.24 1.22
104.27 104.33 104.38 104.43 104.46 104.49 104.52 104.53 104.55 104.55 104.56 104.56 104.56 104.55 104.54 104.54 104.52 104.51 104.50 104.48 104.47 104.45 104.43 104.42 104.40 104.38 104.36 104.34 104.32 104.30 104.28 104.27 104.25 104.23 104.21 104.19 104.17 104.15 104.14 104.12 104.10 104.08 104.07 104.05 104.03 104.02 104.00 103.99 103.97 103.96 103.94 103.93 103.91 103.90 103.89 103.87 103.86 103.85 103.84 103.82 103.81 103.80
47,396 47,424 47,447 47,467 47,484 47,497 47,507 47,515 47,521 47,524 47,526 47,527 47,526 47,523 47,520 47,516 47,511 47,505 47,499 47,493 47,485 47,478 47,470 47,462 47,454 47,445 47,437 47,428 47,419 47,411 47,402 47,393 47,385 47,376 47,368 47,359 47,351 47,343 47,335 47,327 47,319 47,311 47,303 47,296 47,288 47,281 47,274 47,267 47,260 47,253 47,247 47,240 47,234 47,228 47,222 47,216 47,210 47,204 47,198 47,193 47,187 47,182
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #6 Colon Mine Phase 1 Hydrograph 10-Yr Storm
This page intentionally left blank.
Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: _1__of _2__
Sediment Basin #
Qp =
114.53
cfs
Tp =
29.11
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
SB 06
Colon
1 12 4 5 6.1 7 10 18 0
25 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
254.00 255.10 256.00
249.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
6
Phase 1
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.3 0 0.0 0.00 0.00 5.3 159 0.0 0.00 0.00 11.6 790 0.0 0.00 0.00 20.0 2,180 0.1 0.00 0.00 30.2 4,586 0.2 0.00 0.00 41.7 8,213 0.3 0.25 0.25 53.8 13,183 0.5 0.25 0.25 66.1 19,613 0.7 0.25 0.25 78.1 27,521 1.0 0.25 0.25 89.0 36,858 1.2 0.25 0.25 98.5 47,508 1.5 0.25 0.25 106.0 59,295 1.8 0.25 0.25 111.3 71,989 2.1 0.25 0.25 114.1 85,318 2.5 0.25 0.25 114.3 98,983 2.8 0.25 0.25 111.8 112,665 3.1 0.25 0.25 106.8 126,048 3.4 0.25 0.25 99.4 138,828 3.7 0.25 0.25 91.1 150,730 4.0 0.25 0.25 83.3 161,632 4.2 0.25 0.25 76.2 171,599 4.4 0.25 0.25 69.7 180,713 4.6 0.25 0.25 63.7 189,045 4.8 0.25 0.25 58.3 196,663 5.0 0.25 0.25 53.3 203,627 5.1 0.25 1.03 48.8 209,900 5.3 0.25 2.42 44.6 215,461 5.4 0.25 3.98 40.8 220,334 5.5 0.25 5.55 37.3 224,561 5.6 0.25 7.06 34.1 228,189 5.7 0.25 8.44 31.2 231,269 5.7 0.25 9.68 28.5 233,977 5.8 0.25 10.81 26.1 236,360 5.8 0.25 11.84 23.9 238,446 5.9 0.25 12.76 21.8 240,260 5.9 0.25 13.59 20.0 241,826 5.9 0.25 14.31 18.3 243,165 6.0 0.25 14.94 16.7 244,296 6.0 0.25 15.47 15.3 245,238 6.0 0.25 15.93 14.0 246,007 6.0 0.25 16.30 12.8 246,618 6.0 0.25 16.59
4.0E-03 2 99% 6.1 8.9 8.9 0.0
1.2 29,092
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 255.06 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 0.25 0.25 0.00 8.13 1.03 0.00 8.25 2.42 0.00 8.35 3.98 0.00 8.43 5.55 0.00 8.51 7.06 0.00 8.57 8.44 0.00 8.62 8.62 0.00 8.67 8.67 0.00 8.71 8.71 0.00 8.75 8.75 0.00 8.78 8.78 0.00 8.80 8.80 0.00 8.82 8.82 0.00 8.84 8.84 0.00 8.86 8.86 0.00 8.87 8.87 0.00 8.88 8.88
Bound Discharge [cfs] 0.00 0.00 33.25 42.88 50.40 56.73 62.24 67.11 71.48 75.44 79.03 82.29 85.24 87.91 90.32 92.48 94.40 96.10 97.59 98.87 99.98 100.94 101.77 102.50 103.15 103.72 104.22 104.66 105.03 105.35 105.62 105.84 106.04 106.21 106.36 106.49 106.60 106.69 106.77 106.83 106.89 106.93
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 15,112 N/A 19,492 N/A 22,910 N/A 25,786 N/A 28,291 100% 30,503 100% 32,492 100% 34,291 100% 35,922 100% 37,402 100% 38,745 100% 39,959 100% 41,053 100% 42,035 100% 42,910 100% 43,683 100% 44,359 100% 44,943 100% 45,445 100% 45,880 100% 46,259 100% 46,592 100% 46,886 100% 47,146 100% 47,374 100% 47,571 100% 47,741 100% 47,886 100% 48,008 99% 48,110 99% 48,199 99% 48,277 99% 48,345 99% 48,403 99% 48,453 99% 48,496 99% 48,532 99% 48,561 99% 48,585 99% 48,605 99% SB 25-yr (P1) HG
Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: _2__of _2__
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 06
11.7 10.7 9.8 8.9 8.2 7.5 6.8 6.3 5.7 5.2 4.8 4.4 4.0 3.7 3.3 3.1 2.8 2.6 2.3 2.1 2.0 1.8 1.6 1.5 1.4 1.3 1.1 1.0 1.0 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
247,085 247,420 247,634 247,739 247,743 247,655 247,484 247,237 246,920 246,540 246,101 245,610 245,071 244,488 243,866 243,207 242,515 241,793 241,044 240,270 239,474 238,657 237,822 236,970 236,104 235,223 234,331 233,427 232,513 231,591 230,661 229,723 228,780 227,830 226,908 226,022 225,171 224,353 223,567 222,811 222,083 221,383 220,709 220,061 219,435 218,833 218,252 217,692 217,152 216,631 216,128 215,642 215,173 214,720 214,281 213,858 213,448 213,052 212,668 212,297 211,938 211,590
6.0 6.1 6.1 6.1 6.1 6.1 6.1 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 5.9 5.9 5.9 5.9 5.9 5.9 5.9 5.8 5.8 5.8 5.8 5.8 5.7 5.7 5.7 5.7 5.7 5.6 5.6 5.6 5.6 5.6 5.6 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.3 5.3 5.3 5.3 5.3 5.3
0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
16.82 16.99 17.09 17.14 17.15 17.10 17.02 16.90 16.74 16.56 16.34 16.10 15.84 15.57 15.27 14.96 14.63 14.29 13.95 13.59 13.23 12.86 12.48 12.11 11.73 11.34 10.96 10.58 10.19 9.81 9.43 9.05 8.67 8.30 7.94 7.61 7.28 6.98 6.69 6.42 6.16 5.92 5.68 5.46 5.25 5.05 4.86 4.68 4.50 4.34 4.18 4.03 3.89 3.75 3.62 3.50 3.38 3.27 3.16 3.06 2.96 2.86
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
8.89 8.90 8.90 8.90 8.90 8.90 8.90 8.89 8.89 8.88 8.87 8.87 8.86 8.85 8.84 8.83 8.81 8.80 8.79 8.78 8.76 8.75 8.74 8.72 8.71 8.69 8.68 8.66 8.64 8.63 8.61 8.60 8.58 8.56 8.55 8.53 8.52 8.50 8.49 8.48 8.46 8.45 8.44 8.43 8.42 8.41 8.40 8.39 8.38 8.37 8.36 8.35 8.34 8.33 8.32 8.32 8.31 8.30 8.30 8.29 8.28 8.28
8.89 8.90 8.90 8.90 8.90 8.90 8.90 8.89 8.89 8.88 8.87 8.87 8.86 8.85 8.84 8.83 8.81 8.80 8.79 8.78 8.76 8.75 8.74 8.72 8.71 8.69 8.68 8.66 8.64 8.63 8.61 8.60 8.58 8.30 7.94 7.61 7.28 6.98 6.69 6.42 6.16 5.92 5.68 5.46 5.25 5.05 4.86 4.68 4.50 4.34 4.18 4.03 3.89 3.75 3.62 3.50 3.38 3.27 3.16 3.06 2.96 2.86
106.96 106.99 107.00 107.01 107.01 107.00 106.99 106.97 106.95 106.92 106.89 106.86 106.82 106.78 106.74 106.69 106.65 106.59 106.54 106.49 106.43 106.37 106.31 106.25 106.19 106.13 106.06 106.00 105.93 105.87 105.80 105.73 105.66 105.59 105.52 105.46 105.39 105.33 105.27 105.22 105.16 105.11 105.06 105.01 104.96 104.92 104.87 104.83 104.79 104.75 104.71 104.67 104.63 104.60 104.57 104.53 104.50 104.47 104.44 104.41 104.38 104.36
48,619 48,630 48,636 48,640 48,640 48,637 48,632 48,624 48,614 48,602 48,588 48,573 48,556 48,538 48,518 48,497 48,475 48,452 48,428 48,403 48,378 48,352 48,325 48,297 48,269 48,240 48,211 48,181 48,151 48,121 48,090 48,059 48,028 47,996 47,965 47,935 47,906 47,879 47,852 47,826 47,801 47,777 47,754 47,732 47,710 47,689 47,669 47,650 47,631 47,612 47,595 47,578 47,561 47,545 47,530 47,515 47,501 47,486 47,473 47,460 47,447 47,434
99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 25-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #6 Colon Mine Phase 1 Hydrograph 25-Yr Storm
This page intentionally left blank.
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #7
Sheet: 1
Of:
Objective
Design the sediment basin to contain the 10-year storm and pass the 100-year storm without over topping the berm.
4
References 1. NC Erosion and Sediment Control Planning and Design Manual. 2. "Elements of Urban Stormwater Design" by H. Rooney Malcom, P.E. 3. VA Erosion and Sediment Control Handbook 3. NOAA Atlas 14, Volume 2, Version 3 Given Phase Storm Event (yrs) = Total Drainage Area A (ac) = Disturbed Area (ac) = Curve Number CN = Rainfall Depth P (in) = Peak Flow Qp (cfs) =
1 10 16.4 12.5 82 5.28 85.59
2 10 33.1 29.3 81 5.28 134.71
2 25 33.1 29.3 81 6.28 171.36
2 100 33.1 29.3 81 7.88 230.40
Hydrographs (24-hr rainfall) Hydrographs
Ref 3
Design Criteria Required sediment storage Required sediment storage
1,800 59,580
cf / acre of drainage cf (based on largest Phase)
Required Surface Area Required Surface Area (SF)
435 58,599
sf/cfs of the 10-yr storm peak flow (based on the largest Phase in cfs) of the 10-yr storm peak flow (based on the largest Phase)
Determine Shape of Basin: Measure the area of the Basin using AutoCADD. Calculate Volume of the Basin using Truncated Pyramid Method. Shape factor used in hydrographs basin depth may be gretaer than indicated below
Elevation (ft) 238 239 240 241 242 243 244
Depth (ft) 0 1 2 3 4 5 6
Area (sf) 49,034 52,537 56,098 59,717 63,393 67,128 70,920
Volume (cf) 0 50,775 54,308 57,898 61,546 65,252 69,015
Design Sediment Depth (ft) = 3 Sediment Storage (cf) = 162,981 Design Surface Area Depth (ft) = 3 Surface Area (sf) = 59,717
Cumulative Vol (cf) 0 50,775 105,083 162,981 224,527 289,779 358,794
Cumulative Vol (cy) 0 1,881 3,892 6,036 8,316 10,733 13,289
Required Sediment Storage Achieved
Required Surface Area Achieved
SB Dims SB 07.xlsx
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #7
Sheet: 2
Of:
4
Select Skimmer A. R. Jarrett Method D = [Q / (2,310 * (H 0.5)]0.5 D =Diameter of Orifice (inches) Q = Dewater Rate (cf/day) H = Head on orifice, varies based on skimmer size (ft) Skimmer Sizes (Inches) 1.5 2 2.5 3 4 5 6 8 Volume to Dewater (cf) = Number of Skimmers Days to Drain = Q each (cf/day) = Selected Skimmer Size (inches) = Head on Skimmer (feet) = Diameter of Orifice (inches) =
Head (ft) 0.125 0.167 0.167 0.250 0.333 0.333 0.417 0.500 162,981 2 5 16,298
assumed 0.19 cfs
4 0.333 3.5
Route the flow through the Basin Riser is not perforated, but skimmer is attached. S = (1000/CN) - 10 2 Runoff Depth Q* (inches) = (P-0.2S) /(P+0.8S) TP (min) = 60.5(Q*)A/QP/1.39
Phase Storm Event (yrs) = S= Runoff Depth Q* (inches) = Time to Peak T p (min) =
1 10 2.20 3.33 27.78
2 10 2.35 3.23 34.59
Ref 2, III-4
2 25 2.35 4.14 34.80
Determine Pond Storage Elevation (ZWater): Pick one point near max expected water surface and the other at the mid depth. Z1 (ft) = 3 S1 (cf)= 162,981 Z2 (ft) = 6 S2 (cf) = 358,794 1.1 b = ln(S2/S1)/ln(Z2/Z1) = b
KS = S2/Z2 =
2 100 2.35 5.63 35.20
Ref 2, III-8
46,662
SB Dims SB 07.xlsx
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #7
Sheet: 3
Of:
Determine Settling Velocity Conversion Factor =
3.281 ft/sec per m/sec
2
Gravitational Acceleration, g (m/s ) = Specific Gravity of soil (ss)= Kinematic Viscosity of water (v) = Diameter of the Design Particle d15 = Design Particle Settling Velocity
4
9.81 2.6 2 o 1.14E-06m / sec @ 20 C 40.00E-06 m
=
( g / 18 ) * [ ( ss
Route the Storm through the Basin using the Hydrograph Model Set Height of Emergency Spillway at (ft) = 6.90 Set Top of Dam at (ft) = 7.50 Emergency Spillway QE (cfs) = 100-Yr Storm QE (cfs) = 21.1 Cross Section = Trapezoid Channel Side Slope (z) = 5 n= 0.03 Vp (ft/sec) = 5.0 Allowable Shear Stress (psf) = 2.0 Bottom Width, b (ft) = 20
Ref 2, IV-11
- 1 ) / v ] d2 =
4.02E-03
ft/sec
See Hydrograph
(enter X for X:1) Grass Lined Permissible Velocity for lining Allowable Shear Stress for lining
Ref 2, II-7
Calculate Required Depth of Spillway: Normal-Depth Procedure AR2/3=Qn/1.49s0.5
Q=VA
Zreq=Qn/1.49s0.5
Area (A)= bd+z(d^2)
2/3
Zav=AR
Channel Slope ft/ft 0.01 0.02
Depth, d (ft) 0.39 0.32
A (sf) 8.50 6.82
Construct the channel to be :
R=Area/(b+2d((z^2)+1)^.5) Avg Shear Stress(T) = Kb*d*s*unit weight of water
Zreq 4.26 3.01 20 0.6 1%
R 0.35 0.29
Z avail 4.26 3.01
V (ft/sec) 2.5 3.1
T (psf) 0.2 0.4
ft, Bottom Width (measured at top of lining) ft, depth (measured at top of lining) slope
Anti-Seep Collar: Anti-Seep Collar Size = 2 * Barrel Dia Anti-Seep Collar Size (ft) = 4 Use Anti-Seep Collar Size (ft) = 4
x4
SB Dims SB 07.xlsx
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: EAW Checked: PAW
Date: 1/4/15 Date: 1/4/15
Task:
Sediment Basin #7
Sheet: 4
Of:
Minimum Concrete Base for Riser: Diameter of Riser (in) = 60 Avg Density of Concrete (lbs/cf) = Density of Water (lbs/cf) =
From Hydrograph 87.6 62.4
Riser Displacement (cf) = 125.66 Convert cf to cy = Min Concrete Needed (cy) = Width & Length (ft) = Thickness (ft) = Anti-Vortex Device: Diameter of Riser (in) = Cylinder Diameter (in) = Cylinder Thickness (gage) = Cylinder Height (in) =
4
Pi * (DR/24)2 * Total Ht of Riser
27-1 3.32 6 2.5
60 90 14 29
From Hydrograph Ref 3, III-104, Table 3.14-D
Determine Tailwater conditions to size outlet apron Use Normal Depth Procedure (Manning's Eqn.) A*R2/3 = Q*n/1.49 s0.5
Area (A)= bd+z(d^2)
Z req = Q*n/1.49s0.5
R=Area/(b+2d((z^2)+1)^.5)
n= Vp (ft/sec) = Side Slope (z) = s (ft/ft) = Bottom Width (ft) = QB (cfs) =
Q (cfs) 34.3
Zreq 11.23
0.069 9 5 0.02 12 34.3 Flow Depth d (ft) 0.88
Ref 2, II-7
Zav = A*R2/3
6-inch diameter Rip Rap, Lined Channel Permissible Velocity for lining enter X for X:1 Outlet Slope (estimated) 6 * Barrel Diameter Peak Flow out of the barrel 25-yr Hydrograph
A (sf) 14.4
R (ft) 0.69
Zav 11.23
V (ft/sec) 2.4
Flow Depth = Tailwater, d (ft) = 0.88 0.5* Barrel Diameter (ft) = 1.00 Minimum Tailwater Conditions: d0.5*Diameter of Outlet Pipe Since the Tailwater is less than half of the diameter of the outlet, use Minimum Tailwater conditions. Barrel Diameter (ft) 2
Entrance (ft) 6
Length (ft) 10
Outlet Width (ft) 12
Median Rip Rap Size d50 0.7
Ref 1, 8.06.3
Selected Rip Rap Size (in) Class B
Conclusion The basin can contain the 10-yr storm and pass the 100-yr storm without overtopping the berm.
SB Dims SB 07.xlsx
I Job No. 06985-10570-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow
Diameter of Riser (in) = Circumference of Riser (in) = Height of Riser from bottom of barrel (in) = Vertical spacing between holes (in) = Water Stage increment (ft)
60 188.5 77 0 0.05
l
Computed: PAW Date: 12/31/14 Checked: EAW Date: 1/2/15 Sheet 1 Of 2
From Hydrograph center to center
Orifice Equation Q = Cd * A * (2 * g * h)0.5 Q = cfs, discharge Cd = 0.6 coefficient of discharge A = sf, cross sectional area
Ref 1, p III-11
ft/sec2, gravity g = 32.2 h = ft, driving head measured from the center of the pipe
Row Holes per row Hole Diameter (in) Spacing edge to edge (in) Inlet Area (sf) Hole Stage (in) Hole Stage (ft)
1 0 0.75
2 0 0.75
Perforations 3 0 0.75
4 0 0.75
5 0 0.75
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
Skimmer 2
# of skimmers
Water Stage (ft) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Total Flow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.00 0.00 0.29 0.00 0.00 0.00 0.00 0.00 0.34 0.00 0.00 0.00 0.38 0.38 0.39 0.00 0.00 0.00 0.38 0.38 0.44 0.00 0.00 0.00 0.38 0.38 0.49 0.00 0.00 0.00 0.38 0.38 0.54 0.00 0.00 0.00 0.38 0.38 0.59 0.00 0.00 0.00 0.38 0.38 0.64 0.00 0.00 0.00 0.38 0.38 0.69 0.00 0.00 0.00 0.38 0.38 0.74 0.00 0.00 0.00 0.38 0.38 0.79 0.00 0.00 0.00 0.38 0.38 0.84 0.00 0.00 0.00 0.38 0.38 0.89 0.00 0.00 0.00 0.38 0.38 0.94 0.00 0.00 0.00 0.38 0.38 0.99 0.00 0.00 0.00 0.38 0.38 1.04 0.00 0.00 0.00 0.38 0.38 1.09 0.00 0.00 0.00 0.38 0.38 1.14 0.00 0.00 0.00 0.38 0.38 1.19 0.00 0.00 0.00 0.38 0.38 1.24 0.00 0.00 0.00 0.38 0.38 1.29 0.00 0.00 0.00 0.38 0.38 1.34 0.00 0.00 0.00 0.38 0.38 1.39 0.00 0.00 0.00 0.38 0.38 1.44 0.00 0.00 0.00 0.38 0.38 1.49 0.00 0.00 0.00 0.38 0.38 1.54 0.00 0.00 0.00 0.38 0.38 1.59 0.00 0.00 0.00 0.38 0.38 SB 07.xlsx
Pipe Perf-Skimmer
I Job No. 06985-10570-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow 1.64 1.69 1.74 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.59 2.64 2.69 2.74 2.79 2.84 2.89 2.94 2.99 3.04 3.09 3.14 3.19 3.24 3.29 3.34 3.39 3.44 3.49 3.54 3.59 3.64 3.69 3.74 3.79 3.84 3.89 3.94 3.99
SB 07.xlsx
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
l
Computed: PAW Date: 12/31/14 Checked: EAW Date: 1/2/15 Sheet 2 Of 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
Pipe Perf-Skimmer
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _1__of __2_
Sediment Basin #
Qp =
85.59
cfs
Tp =
27.78
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 4.4 6.4 6.9 7.5 20 60 0
b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
244.40 244.90 245.50
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.1 0 0.0 0.00 0.00 4.3 131 0.0 0.00 0.00 9.5 647 0.0 0.00 0.00 16.4 1,785 0.1 0.00 0.00 24.6 3,748 0.1 0.00 0.00 33.7 6,696 0.2 0.00 0.00 43.3 10,743 0.3 0.00 0.00 52.9 15,943 0.4 0.38 0.38 62.0 22,203 0.5 0.38 0.38 70.1 29,550 0.7 0.38 0.38 76.8 37,868 0.8 0.38 0.38 81.7 46,991 1.0 0.38 0.38 84.7 56,709 1.2 0.38 0.38 85.6 66,786 1.4 0.38 0.38 84.2 76,965 1.6 0.38 0.38 80.8 86,984 1.7 0.38 0.38 75.4 96,589 1.9 0.38 0.38 68.9 105,550 2.0 0.38 0.38 62.7 113,727 2.2 0.38 0.38 57.1 121,166 2.3 0.38 0.38 52.0 127,931 2.4 0.38 0.38 47.4 134,084 2.5 0.38 0.38 43.1 139,680 2.6 0.38 0.38 39.3 144,767 2.7 0.38 0.38 35.8 149,391 2.8 0.38 0.38 32.6 153,595 2.8 0.38 0.38 29.7 157,414 2.9 0.38 0.38 27.0 160,884 3.0 0.38 0.38 24.6 164,036 3.0 0.38 0.38 22.4 166,899 3.1 0.38 0.38 20.4 169,497 3.1 0.38 0.38 18.6 171,855 3.1 0.38 0.38 16.9 173,995 3.2 0.38 0.38 15.4 175,935 3.2 0.38 0.38 14.0 177,693 3.2 0.38 0.38 12.8 179,287 3.3 0.38 0.38 11.6 180,730 3.3 0.38 0.38 10.6 182,036 3.3 0.38 0.38 9.7 183,217 3.3 0.38 0.38 8.8 184,285 3.3 0.38 0.38 8.0 185,249 3.4 0.38 0.38
SB 07.xlsx
Colon
10 - year Storm Event
238.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
7
Phase 1
4.0E-03 2 100% 3.5 0.8 0.8 0.0
1.1 46,662
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 241.48 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75
Bound Discharge [cfs] 0.00 0.00 57.19 69.47 78.58 86.00 92.29 97.75 102.56 106.77 110.55 113.94 116.97 119.67 122.08 124.20 126.06 127.68 129.06 130.24 131.25 132.12 132.88 133.54 134.12 134.63 135.09 135.49 135.85 136.17 136.46 136.72 136.95 137.15 137.34 137.50 137.65 137.79 137.91 138.02 138.12 138.20
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 25,995 N/A 31,575 N/A 35,720 N/A 39,091 N/A 41,951 N/A 44,433 N/A 46,618 100% 48,534 100% 50,251 100% 51,790 100% 53,167 100% 54,397 100% 55,490 100% 56,455 100% 57,302 100% 58,036 100% 58,666 100% 59,201 100% 59,658 100% 60,054 100% 60,398 100% 60,699 100% 60,964 100% 61,197 100% 61,404 100% 61,588 100% 61,751 100% 61,897 100% 62,028 100% 62,144 100% 62,249 100% 62,342 100% 62,427 100% 62,502 100% 62,570 100% 62,631 100% 62,686 100% 62,735 100% 62,780 100% 62,819 100% SB 10-yr (P1) HG
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _2__of __2_
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 07.xlsx
7.3 6.6 6.0 5.5 5.0 4.6 4.2 3.8 3.4 3.1 2.9 2.6 2.4 2.2 2.0 1.8 1.6 1.5 1.4 1.2 1.1 1.0 0.9 0.8 0.8 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
186,118 186,902 187,608 188,243 188,813 189,324 189,781 190,189 190,553 190,876 191,162 191,414 191,636 191,830 191,999 192,144 192,268 192,373 192,461 192,532 192,590 192,634 192,666 192,687 192,698 192,700 192,693 192,679 192,659 192,632 192,599 192,561 192,519 192,472 192,421 192,367 192,310 192,249 192,186 192,120 192,053 191,983 191,911 191,838 191,763 191,686 191,609 191,530 191,450 191,370 191,288 191,205 191,122 191,039 190,954 190,869 190,784 190,698 190,611 190,525 190,438 190,350
3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75
138.28 138.35 138.42 138.47 138.52 138.57 138.61 138.65 138.68 138.71 138.73 138.75 138.77 138.79 138.81 138.82 138.83 138.84 138.85 138.85 138.86 138.86 138.86 138.87 138.87 138.87 138.87 138.87 138.86 138.86 138.86 138.86 138.85 138.85 138.84 138.84 138.83 138.83 138.82 138.82 138.81 138.80 138.80 138.79 138.78 138.78 138.77 138.76 138.76 138.75 138.74 138.74 138.73 138.72 138.71 138.71 138.70 138.69 138.68 138.68 138.67 138.66
62,855 62,887 62,916 62,942 62,965 62,986 63,004 63,021 63,035 63,048 63,060 63,070 63,079 63,087 63,093 63,099 63,104 63,108 63,112 63,115 63,117 63,119 63,120 63,121 63,121 63,121 63,121 63,121 63,120 63,119 63,117 63,116 63,114 63,112 63,110 63,108 63,106 63,103 63,101 63,098 63,096 63,093 63,090 63,087 63,084 63,081 63,078 63,075 63,072 63,068 63,065 63,062 63,058 63,055 63,052 63,048 63,045 63,041 63,038 63,034 63,031 63,027
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #7 Colon Mine Phase 1 Hydrograph 10-Yr Storm
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: _1__of __2_
Qp = Tp =
134.71 34.59 2 1.0%
dT = Max of
or
Sediment Basin # 7
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 4.4 6.4 6.9 7.5 20 60 0
Phase 2 10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
244.40 244.90 245.50
238.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.1 0 0.0 0.00 0.00 4.4 133 0.0 0.00 0.00 9.8 661 0.0 0.00 0.00 17.0 1,832 0.1 0.00 0.00 25.9 3,873 0.1 0.00 0.00 36.2 6,984 0.2 0.00 0.00 47.5 11,329 0.3 0.00 0.00 59.5 17,029 0.4 0.38 0.38 71.7 24,074 0.6 0.38 0.38 83.7 32,584 0.7 0.38 0.38 95.3 42,544 0.9 0.38 0.38 105.9 53,887 1.1 0.38 0.38 115.2 66,504 1.4 0.38 0.38 123.0 80,242 1.6 0.38 0.38 128.9 94,912 1.9 0.38 0.38 132.9 110,296 2.1 0.38 0.38 134.6 126,148 2.4 0.38 0.38 134.2 142,211 2.7 0.38 0.38 131.5 158,220 2.9 0.38 0.38 126.7 173,909 3.2 0.38 0.38 120.0 189,026 3.4 0.38 0.38 111.9 203,337 3.6 0.38 0.38 103.8 216,669 3.9 0.38 0.38 96.2 229,028 4.0 0.38 0.38 89.3 240,487 4.2 0.38 0.38 82.8 251,109 4.4 0.38 0.38 76.8 260,955 4.5 0.38 0.38 71.2 270,081 4.7 0.38 0.38 66.1 278,541 4.8 0.38 0.38 61.3 286,381 4.9 0.38 0.38 56.9 293,646 5.0 0.38 0.38 52.7 300,379 5.1 0.38 0.38 48.9 306,618 5.2 0.38 0.38 45.4 312,399 5.3 0.38 0.38 42.1 317,754 5.4 0.38 0.38 39.0 322,715 5.5 0.38 0.38 36.2 327,310 5.5 0.38 0.38 33.6 331,566 5.6 0.38 0.38 31.2 335,507 5.7 0.38 0.38 28.9 339,156 5.7 0.38 0.38 26.8 342,534 5.8 0.38 0.38 24.9 345,661 5.8 0.38 0.38
SB 07.xlsx
Colon
WEIR FLOW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4.0E-03 2 100% 6.3 0.8 0.8 0.0
1.1 46,662
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 244.33 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
BARREL TOTAL Bound Estimated CAPACIT OUTFLOW Discharge Surface Y [cfs] [cfs] [cfs] Area (sf) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 57.30 26,047 0.00 0.00 69.64 31,653 0.00 0.00 78.83 35,832 0.00 0.00 86.35 39,249 0.00 0.00 92.77 42,166 0.00 0.00 98.39 44,721 0.38 0.75 103.39 46,993 0.38 0.75 107.83 49,014 0.38 0.75 111.87 50,852 0.38 0.75 115.56 52,528 0.38 0.75 118.93 54,060 0.38 0.75 122.01 55,461 0.38 0.75 124.83 56,742 0.38 0.75 127.41 57,913 0.38 0.75 129.76 58,980 0.38 0.75 131.89 59,952 0.38 0.75 133.83 60,832 0.38 0.75 135.58 61,626 0.38 0.75 137.15 62,339 0.38 0.75 138.54 62,974 0.38 0.75 139.78 63,535 0.38 0.75 140.86 64,028 0.38 0.75 141.81 64,461 0.38 0.75 142.66 64,845 0.38 0.75 143.41 65,187 0.38 0.75 144.08 65,492 0.38 0.75 144.69 65,767 0.38 0.75 145.23 66,014 0.38 0.75 145.72 66,237 0.38 0.75 146.17 66,439 0.38 0.75 146.57 66,623 0.38 0.75 146.94 66,789 0.38 0.75 147.27 66,941 0.38 0.75 147.58 67,080 0.38 0.75 147.85 67,206 0.38 0.75 148.11 67,322 0.38 0.75 148.34 67,428 0.38 0.75 148.55 67,525 0.38 0.75 148.75 67,614 0.38 0.75 148.93 67,695 0.38 0.75 149.09 67,770
Settling Efficiency [%] N/A N/A N/A N/A N/A N/A N/A N/A 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: _2__of __2_
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 07.xlsx
23.1 21.4 19.9 18.4 17.1 15.8 14.7 13.6 12.6 11.7 10.9 10.1 9.4 8.7 8.1 7.5 6.9 6.4 6.0 5.5 5.1 4.8 4.4 4.1 3.8 3.5 3.3 3.0 2.8 2.6 2.4 2.2 2.1 1.9 1.8 1.7 1.5 1.4 1.3 1.2 1.1 1.1 1.0 0.9 0.8 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3
348,555 351,233 353,711 356,002 358,121 360,080 361,891 363,563 365,109 366,535 367,852 369,067 370,188 371,220 372,172 373,048 373,853 374,594 375,275 375,900 376,473 376,998 377,479 377,918 378,319 378,684 379,016 379,318 379,591 379,838 380,060 380,260 380,438 380,598 380,739 380,863 380,972 381,066 381,147 381,216 381,273 381,319 381,356 381,383 381,402 381,412 381,416 381,412 381,403 381,387 381,366 381,340 381,310 381,275 381,236 381,193 381,147 381,097 381,045 380,990
5.8 5.9 5.9 6.0 6.0 6.0 6.0 6.1 6.1 6.1 6.1 6.2 6.2 6.2 6.2 6.2 6.2 6.2 6.2 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75
149.25 149.38 149.51 149.63 149.74 149.84 149.93 150.01 150.09 150.16 150.23 150.29 150.34 150.39 150.44 150.48 150.52 150.56 150.59 150.62 150.65 150.68 150.70 150.72 150.74 150.76 150.77 150.79 150.80 150.81 150.82 150.83 150.84 150.85 150.86 150.86 150.87 150.87 150.88 150.88 150.88 150.89 150.89 150.89 150.89 150.89 150.89 150.89 150.89 150.89 150.89 150.89 150.88 150.88 150.88 150.88 150.88 150.87 150.87 150.87
67,839 67,902 67,960 68,014 68,063 68,108 68,149 68,188 68,223 68,255 68,285 68,312 68,337 68,361 68,382 68,401 68,419 68,436 68,451 68,465 68,478 68,489 68,500 68,509 68,518 68,526 68,534 68,540 68,546 68,552 68,557 68,561 68,565 68,568 68,571 68,574 68,577 68,579 68,580 68,582 68,583 68,584 68,585 68,586 68,586 68,586 68,586 68,586 68,586 68,586 68,585 68,585 68,584 68,583 68,582 68,581 68,580 68,579 68,578 68,577
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0 TOTAL OUTFLOW [cfs] INFLOW [cfs]
150
3.0
STAGE [ft] 100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE (ft)
FLOW (cfs)
Sediment Basin #7 Colon Mine Phase 2 Hydrograph 10-Yr Storm
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _1__of __2_
Qp = Tp =
171.36 34.80 dT = Max of 2 or 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 4.4 6.4 6.9 7.5 20 60 0
Sediment Basin # 7
Phase 2 25 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
244.40 244.90 245.50
238.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 07.xlsx
Colon
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.4 0 0.0 0.00 0.00 5.5 167 0.0 0.00 0.00 12.3 830 0.0 0.00 0.00 21.4 2,301 0.1 0.00 0.00 32.6 4,868 0.1 0.00 0.00 45.5 8,779 0.2 0.00 0.00 59.8 14,244 0.4 0.38 0.38 74.9 21,327 0.5 0.38 0.38 90.3 30,220 0.7 0.38 0.38 105.6 40,965 0.9 0.38 0.38 120.2 53,545 1.1 0.38 0.38 133.7 67,882 1.4 0.38 0.38 145.7 83,841 1.7 0.38 0.38 155.7 101,234 2.0 0.38 0.38 163.4 119,827 2.3 0.38 0.38 168.6 139,348 2.6 0.38 0.38 171.1 159,493 2.9 0.38 0.38 170.9 179,939 3.3 0.38 0.38 167.8 200,352 3.6 0.38 0.38 162.1 220,399 3.9 0.38 0.38 153.9 239,762 4.2 0.38 0.38 143.8 258,141 4.5 0.38 0.38 133.4 275,302 4.8 0.38 0.38 123.8 291,222 5.0 0.38 0.38 114.9 305,989 5.2 0.38 0.38 106.6 319,686 5.4 0.38 0.38 99.0 332,391 5.6 0.38 0.38 91.8 344,175 5.8 0.38 0.38 85.2 355,104 5.9 0.38 0.38 79.1 365,240 6.1 0.38 0.38 73.4 374,640 6.2 0.38 0.38 68.1 383,357 6.4 0.38 0.38 63.2 391,440 6.5 0.38 1.48 58.7 398,668 6.6 0.38 4.40 54.4 404,652 6.7 0.38 7.59 50.5 409,362 6.7 0.38 10.51 46.9 412,902 6.8 0.38 12.90 43.5 415,432 6.8 0.38 14.71 40.4 417,123 6.8 0.38 15.96 37.5 418,137 6.9 0.38 16.73 34.8 418,618 6.9 0.38 17.10 32.3 418,687 6.9 0.38 17.15
4.0E-03 2 96% 6.9 34.3 34.3 0.0
1.1 46,662
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 244.9 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFL [cfs] [cfs] OW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 0.38 0.75 0.00 35.34 2.97 0.00 35.68 8.80 0.00 35.96 15.19 0.00 36.17 21.01 0.00 36.33 25.80 0.00 36.45 29.42 0.00 36.52 31.92 0.00 36.57 33.46 0.00 36.59 34.20 0.00 36.60 34.30
Bound Discharge [cfs] 0.00 0.00 58.92 71.60 81.05 88.78 95.38 101.16 106.25 110.85 115.03 118.84 122.32 125.50 128.41 131.07 133.50 135.71 137.71 139.53 141.15 142.61 143.89 145.02 146.02 146.90 147.68 148.39 149.02 149.58 150.10 150.56 150.98 151.37 151.70 151.98 152.19 152.35 152.47 152.54 152.59 152.61 152.61
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 26,780 N/A 32,544 N/A 36,841 N/A 40,355 N/A 43,355 N/A 45,983 100% 48,297 100% 50,388 100% 52,287 100% 54,018 100% 55,600 100% 57,046 100% 58,369 100% 59,578 100% 60,681 100% 61,686 100% 62,598 100% 63,421 100% 64,161 100% 64,821 100% 65,406 100% 65,920 100% 66,372 100% 66,773 100% 67,129 100% 67,448 100% 67,735 100% 67,993 100% 68,226 100% 68,437 100% 68,629 100% 68,803 100% 68,956 100% 69,081 99% 69,179 98% 69,251 98% 69,303 97% 69,337 97% 69,357 96% 69,367 96% 69,368 96% SB 25-yr HG (P2)
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _2__of __2_
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 07.xlsx
29.9 27.8 25.8 23.9 22.2 20.6 19.1 17.8 16.5 15.3 14.2 13.2 12.2 11.3 10.5 9.8 9.1 8.4 7.8 7.2 6.7 6.2 5.8 5.4 5.0 4.6 4.3 4.0 3.7 3.4 3.2 3.0 2.7 2.5 2.4 2.2 2.0 1.9 1.8 1.6 1.5 1.4 1.3 1.2 1.1 1.0 1.0 0.9 0.8 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.3
418,443 417,965 417,316 416,545 415,690 414,780 413,837 412,878 411,916 410,961 410,020 409,097 408,197 407,322 406,473 405,652 404,860 404,096 403,360 402,652 401,971 401,317 400,688 400,085 399,506 398,950 398,417 397,905 397,414 396,943 396,491 396,058 395,642 395,243 394,860 394,492 394,139 393,800 393,474 393,161 392,860 392,572 392,294 392,027 391,770 391,523 391,285 391,056 390,836 390,623 390,418 390,221 390,031 389,847 389,670 389,498 389,333 389,173 389,019 388,869 388,724
6.9 6.9 6.9 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.4 6.4 6.4 6.4 6.4 6.4
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
16.96 16.60 16.11 15.53 14.90 14.23 13.56 12.88 12.22 11.57 10.94 10.33 9.76 9.20 8.68 8.18 7.72 7.27 6.85 6.46 6.09 5.74 5.41 5.10 4.81 4.54 4.28 4.04 3.81 3.60 3.40 3.21 3.03 2.87 2.71 2.57 2.43 2.30 2.18 2.07 1.96 1.86 1.76 1.67 1.59 1.51 1.44 1.37 1.30 1.24 1.18 1.12 1.07 1.02 0.98 0.94 0.89 0.86 0.82 0.79 0.75
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
36.58 36.56 36.53 36.50 36.46 36.42 36.38 36.33 36.29 36.25 36.20 36.16 36.12 36.08 36.04 36.00 35.97 35.93 35.90 35.87 35.83 35.80 35.78 35.75 35.72 35.69 35.67 35.65 35.62 35.60 35.58 35.56 35.54 35.52 35.50 35.49 35.47 35.46 35.44 35.43 35.41 35.40 35.38 35.37 35.36 35.35 35.34 35.33 35.32 35.31 35.30 35.29 35.28 35.27 35.26 35.25 35.25 35.24 35.23 35.22 35.22
33.93 33.20 32.22 31.06 29.80 28.47 27.12 25.77 24.43 23.13 21.88 20.67 19.51 18.41 17.36 16.37 15.43 14.54 13.71 12.92 12.17 11.47 10.82 10.20 9.62 9.07 8.56 8.08 7.62 7.20 6.80 6.42 6.07 5.74 5.43 5.13 4.86 4.60 4.36 4.13 3.92 3.71 3.52 3.35 3.18 3.02 2.87 2.73 2.60 2.48 2.36 2.25 2.15 2.05 1.96 1.87 1.79 1.71 1.64 1.57 1.51
152.60 152.58 152.55 152.52 152.48 152.44 152.39 152.35 152.31 152.27 152.22 152.18 152.14 152.10 152.06 152.02 151.99 151.95 151.92 151.89 151.86 151.83 151.80 151.77 151.74 151.72 151.69 151.67 151.65 151.62 151.60 151.58 151.56 151.54 151.53 151.51 151.49 151.48 151.46 151.45 151.43 151.42 151.41 151.39 151.38 151.37 151.36 151.35 151.34 151.33 151.32 151.31 151.30 151.29 151.28 151.28 151.27 151.26 151.25 151.25 151.24
69,363 69,354 69,341 69,325 69,308 69,289 69,270 69,251 69,231 69,211 69,192 69,173 69,155 69,137 69,119 69,102 69,086 69,070 69,054 69,040 69,025 69,012 68,999 68,986 68,974 68,962 68,951 68,940 68,930 68,920 68,910 68,901 68,892 68,884 68,876 68,868 68,860 68,853 68,846 68,840 68,833 68,827 68,821 68,816 68,810 68,805 68,800 68,795 68,790 68,785 68,781 68,777 68,773 68,769 68,765 68,761 68,758 68,754 68,751 68,748 68,745
96% 96% 96% 97% 97% 97% 97% 98% 98% 98% 98% 98% 98% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 25-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
OUTFLOW INFLOW [cfs]
200
STAGE [ft]
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #7 Colon Mine Phase 2 Hydrograph 25-Yr Storm
Computed By: PAW Date: 12/31/14 Checked By: EAW
Date: 1/2/15
Sheet: __1__of __2__
Qp = Tp = dT = Max of
or
230.4 35.2 2 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 24 4.4 6.4 6.9 7.5 20 60 0
Sediment Basin # 7
Phase 2 100 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
244.40 244.90 245.50
238.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 07.xlsx
Colon
4.0E-03 2 83% 7.4 97.5 76.4 21.1
1.1 46,662
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 245.4 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
WEIR BARREL TOTAL Bound RISER INFLOW STORAGE STAGE Skimmer CAPACIT FLOW CAPACITY OUTFLOW Discharge [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] [cfs] [cfs] [cfs] [cfs] 0.0 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 1.8 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 7.3 220 0.0 0.00 0.00 0.00 0.00 0.00 60.91 16.1 1,091 0.0 0.00 0.00 0.00 0.00 0.00 74.02 28.1 3,027 0.1 0.00 0.00 0.00 0.00 0.00 83.80 42.9 6,403 0.2 0.00 0.00 0.00 0.00 0.00 91.79 60.0 11,554 0.3 0.00 0.00 0.00 0.00 0.00 98.62 78.8 18,753 0.4 0.38 0.38 0.00 0.38 0.75 104.60 98.8 28,121 0.6 0.38 0.38 0.00 0.38 0.75 109.89 119.3 39,888 0.9 0.38 0.38 0.00 0.38 0.75 114.66 139.7 54,116 1.1 0.38 0.38 0.00 0.38 0.75 118.99 159.3 70,788 1.4 0.38 0.38 0.00 0.38 0.75 122.94 177.5 89,813 1.8 0.38 0.38 0.00 0.38 0.75 126.56 193.7 111,021 2.1 0.38 0.38 0.00 0.38 0.75 129.86 207.4 134,175 2.5 0.38 0.38 0.00 0.38 0.75 132.89 218.2 158,976 2.9 0.38 0.38 0.00 0.38 0.75 135.66 225.7 185,072 3.4 0.38 0.38 0.00 0.38 0.75 138.19 229.7 212,070 3.8 0.38 0.38 0.00 0.38 0.75 140.49 230.1 239,548 4.2 0.38 0.38 0.00 0.38 0.75 142.59 226.8 267,070 4.6 0.38 0.38 0.00 0.38 0.75 144.49 220.0 294,198 5.0 0.38 0.38 0.00 0.38 0.75 146.20 209.8 320,505 5.4 0.38 0.38 0.00 0.38 0.75 147.73 196.9 345,593 5.8 0.38 0.38 0.00 0.38 0.75 149.09 182.9 369,129 6.2 0.38 0.38 0.00 0.38 0.75 150.29 169.8 390,983 6.5 0.38 1.34 0.00 35.32 2.69 151.35 157.8 411,042 6.8 0.38 11.62 0.00 36.25 23.24 152.27 146.5 427,183 7.0 0.38 24.09 1.72 36.97 49.90 152.98 136.1 438,778 7.2 0.38 34.73 7.96 37.48 77.42 153.48 126.4 445,818 7.3 0.38 41.79 13.01 37.79 88.59 153.78 117.4 450,355 7.3 0.38 46.55 16.67 37.99 92.64 153.97 109.0 453,325 7.4 0.38 49.76 19.23 38.11 95.45 154.09 101.3 454,956 7.4 0.38 51.56 20.68 38.18 97.04 154.16 94.1 455,464 7.4 0.38 52.12 21.14 38.20 97.54 154.18 87.4 455,047 7.4 0.38 51.66 20.76 38.19 97.13 154.16 81.1 453,875 7.4 0.38 50.37 19.71 38.14 95.98 154.12 75.4 452,095 7.4 0.38 48.43 18.15 38.06 94.27 154.04 70.0 449,826 7.3 0.38 45.99 16.23 37.96 92.16 153.95 65.0 447,168 7.3 0.38 43.19 14.07 37.85 89.77 153.84 60.4 444,198 7.2 0.38 40.13 11.78 37.72 87.22 153.71 56.1 440,978 7.2 0.38 36.89 9.45 37.58 83.23 153.58 52.1 437,721 7.1 0.38 33.71 7.28 37.44 74.69 153.44 48.4 435,009 7.1 0.38 31.13 5.61 37.32 67.88 153.32 44.9 432,669 7.1 0.38 28.97 4.30 37.22 62.23 153.22
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 27,686 N/A 33,645 N/A 38,089 N/A 41,723 N/A 44,828 N/A 47,547 100% 49,949 100% 52,118 100% 54,088 100% 55,884 100% 57,525 100% 59,027 100% 60,403 100% 61,662 100% 62,812 100% 63,861 100% 64,814 100% 65,677 100% 66,454 100% 67,150 100% 67,769 100% 68,314 100% 68,793 100% 69,213 98% 69,538 93% 69,765 87% 69,900 85% 69,986 84% 70,042 84% 70,073 83% 70,082 83% 70,074 83% 70,052 84% 70,019 84% 69,976 84% 69,926 85% 69,869 85% 69,807 86% 69,744 88% 69,692 89% 69,646 91% SB 100-yr HG (P2)
Computed By: PAW Date: 12/31/14 Checked By: EAW
Date: 1/2/15
Sheet: __2__of __2__
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 07.xlsx
41.7 38.8 36.0 33.4 31.1 28.9 26.8 24.9 23.1 21.5 19.9 18.5 17.2 16.0 14.8 13.8 12.8 11.9 11.0 10.3 9.5 8.8 8.2 7.6 7.1 6.6 6.1 5.7 5.3 4.9 4.6 4.2 3.9 3.6 3.4 3.1 2.9 2.7 2.5 2.3 2.2 2.0 1.9 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 1.0 0.9 0.8 0.8 0.7 0.7 0.6 0.6 0.5
430,594 428,714 426,982 425,366 423,843 422,396 421,010 419,670 418,357 417,076 415,829 414,622 413,456 412,331 411,247 410,206 409,205 408,244 407,322 406,438 405,591 404,779 404,000 403,254 402,540 401,855 401,200 400,572 399,970 399,393 398,841 398,311 397,803 397,317 396,851 396,403 395,974 395,563 395,168 394,789 394,426 394,077 393,742 393,420 393,111 392,814 392,528 392,253 391,989 391,735 391,491 391,255 391,029 390,810 390,600 390,397 390,202 390,013 389,831 389,655
7.0 7.0 7.0 7.0 6.9 6.9 6.9 6.9 6.9 6.8 6.8 6.8 6.8 6.8 6.8 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.7 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.6 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5
0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
27.09 25.42 23.92 22.54 21.27 20.08 18.97 17.91 16.90 15.93 15.00 14.12 13.29 12.50 11.76 11.06 10.40 9.79 9.21 8.66 8.15 7.67 7.22 6.79 6.40 6.02 5.68 5.35 5.04 4.75 4.48 4.23 3.99 3.77 3.56 3.36 3.18 3.00 2.84 2.69 2.54 2.41 2.28 2.16 2.05 1.94 1.84 1.75 1.66 1.58 1.50 1.43 1.36 1.29 1.23 1.17 1.12 1.07 1.02 0.97
3.23 2.36 1.64 1.05 0.58 0.23 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
37.13 37.04 36.97 36.89 36.83 36.76 36.70 36.64 36.58 36.52 36.47 36.41 36.36 36.31 36.26 36.21 36.17 36.12 36.08 36.04 36.00 35.96 35.93 35.89 35.86 35.83 35.80 35.77 35.74 35.72 35.69 35.67 35.64 35.62 35.60 35.58 35.56 35.54 35.52 35.50 35.48 35.47 35.45 35.44 35.42 35.41 35.40 35.38 35.37 35.36 35.35 35.34 35.33 35.32 35.31 35.30 35.29 35.28 35.27 35.26
57.41 53.20 49.47 46.13 43.12 40.40 37.96 35.83 33.80 31.85 30.00 28.24 26.58 25.00 23.52 22.12 20.81 19.57 18.41 17.32 16.30 15.33 14.43 13.59 12.79 12.05 11.35 10.70 10.08 9.51 8.96 8.46 7.98 7.53 7.11 6.72 6.35 6.00 5.68 5.37 5.08 4.81 4.56 4.32 4.09 3.88 3.68 3.50 3.32 3.16 3.00 2.85 2.72 2.59 2.46 2.35 2.24 2.14 2.04 1.95
153.13 153.05 152.97 152.90 152.84 152.77 152.71 152.65 152.60 152.54 152.48 152.43 152.38 152.33 152.28 152.23 152.19 152.14 152.10 152.06 152.02 151.98 151.95 151.91 151.88 151.85 151.82 151.79 151.76 151.74 151.71 151.69 151.66 151.64 151.62 151.60 151.58 151.56 151.54 151.52 151.51 151.49 151.47 151.46 151.44 151.43 151.42 151.40 151.39 151.38 151.37 151.36 151.35 151.34 151.33 151.32 151.31 151.30 151.29 151.28
69,605 69,568 69,534 69,502 69,472 69,443 69,415 69,388 69,362 69,336 69,311 69,286 69,262 69,239 69,217 69,196 69,175 69,156 69,137 69,118 69,101 69,084 69,068 69,052 69,037 69,023 69,009 68,996 68,984 68,971 68,960 68,949 68,938 68,928 68,918 68,908 68,899 68,891 68,882 68,874 68,867 68,859 68,852 68,845 68,839 68,832 68,826 68,820 68,815 68,809 68,804 68,799 68,794 68,790 68,785 68,781 68,776 68,772 68,769 68,765
92% 92% 93% 94% 94% 95% 95% 96% 96% 97% 97% 97% 97% 98% 98% 98% 98% 98% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 100-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
OUTFLOW 250
INFLOW [cfs]
5.0
STAGE [ft] 200
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #7 Colon Mine Phase 2 Hydrograph 100-Yr Storm
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #8
Sheet: 1
Of: 4
Objective
Design the temporary sediment basin to contain the 25-year storm.
References 1. NC Erosion and Sediment Control Planning and Design Manual. 2. "Elements of Urban Stormwater Design" by H. Rooney Malcom, P.E. 3. NOAA Atlas 14, Volume 2, Version 3 4. VA Erosion and Sediment Control Handbook Given Phase Storm Event (yrs) = Total Drainage Area A (ac) = Disturbed Area (ac) = Curve Number CN = Rainfall Depth P (in) = Peak Flow Qp (cfs) =
1 10 11.8 11.8 86 5.28 71.25
1 25 11.8 11.8 86 6.28 88.20
Hydrographs (24-hr rainfall) Hydrographs
Ref 3
Design Criteria Required sediment storage Required sediment storage
1,800 21,240
cf / acre of drainage cf
Required Surface Area Required Surface Area (SF)
435 38,367
sf/cfs of the 10-yr storm peak flow (based on the largest Phase in cfs) of the 10-yr storm peak flow (based on the largest Phase)
Determine Shape of Basin: Measure the area of the Basin using AutoCADD. Calculate Volume of the Basin using Truncated Pyramid Method. Shape factor used in hydrographs basin depth may be gretaer than indicated below
Elevation (ft) 273 274 275 276 277 278 279
Depth (ft) 0 1 2 3 4 5 6
Area (sf) 5,639 18,291 28,277 38,333 47,710 59,010 69,292
Volume (cf) 11,362 23,103 33,178 42,936 53,260 64,082
Design Sediment Depth (ft) = 3 Sediment Storage (cf) = 67,643 Design Surface Area Depth (ft) = 3 Surface Area (sf) = 38,333
Cumulative Vol (cf) 11,362 34,465 67,643 110,579 163,839 227,922
Cumulative Vol (cy) 421 1,276 2,505 4,096 6,068 8,442
Required Sediment Storage Achieved
Increase Surface Area
SB Dims SB 08
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #8
Sheet: 2
Of: 4
Select Skimmer A. R. Jarrett Method D = [Q / (2,310 * (H 0.5)]0.5 D =Diameter of Orifice (inches) Q = Dewater Rate (cf/day) H = Head on orifice, varies based on skimmer size (ft) Skimmer Sizes (Inches) 1.5 2 2.5 3 4 5 6 8
Head (ft) 0.125 0.167 0.167 0.250 0.333 0.333 0.417 0.500
Volume to Dewater (cf) = Number of Skimmers Days to Drain = Q each (cf/day) =
67,643 1 5 13,529
Selected Skimmer Size (inches) = Head on Skimmer (feet) = Diameter of Orifice (inches) =
4 0.333 3.2
assumed 0.16 cfs
Route the flow through the Basin Riser is not perforated, but skimmer is attached. S = (1000/CN) - 10 2 Runoff Depth Q* (inches) = (P-0.2S) /(P+0.8S) TP (min) = 60.5(Q*)A/QP/1.39
Phase Storm Event (yrs) = S= Runoff Depth Q* (inches) = Time to Peak T p (min) =
1 10 1.63 3.73 26.88
1 25 1.63 4.68 27.23
Determine Pond Storage Elevation (Z Water): Pick one point near max expected water surface and the other at the mid depth. Z1 (ft) = 3 S1 (cf)= 67,643 Z2 (ft) = 5 S2 (cf) = 163,839 b = ln(S2/S1)/ln(Z2/Z1) = 1.7 b
KS = S2/Z2 =
Ref 2, III-4
Ref 2, III-8
10,091
SB Dims SB 08
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #8
Sheet: 3
Of: 4
Determine Settling Velocity Conversion Factor =
3.281 ft/sec per m/sec
2
Gravitational Acceleration, g (m/s ) = Specific Gravity of soil (ss)=
9.81 2.6 2 o 1.14E-06m / sec @ 20 C 40.00E-06 m
Kinematic Viscosity of water (v) = Diameter of the Design Particle d 15 = Design Particle Settling Velocity
=
( g / 18 ) * [ ( s s
Route the Storm through the Basin using the Hydrograph Model Set Height of Emergency Spillway at (ft) = 5.30 Set Top of Dam at (ft) = 6.00
Ref 2, IV-11
- 1 ) / v ] d2 =
4.02E-03
ft/sec
See Hydrograph
Anti-Seep Collar: Anti-Seep Collar Size = 2 * Barrel Dia Anti-Seep Collar Size (ft) = 2 Use Anti-Seep Collar Size (ft) = 2 Minimum Concrete Base for Riser: Diameter of Riser (in) = 18 Avg Density of Concrete (lbs/cf) = Density of Water (lbs/cf) = Riser Displacement (cf) = 7.95 Convert cf to cy = Min Concrete Needed (cy) = Width & Length (ft) = Thickness (ft) = Anti-Vortex Device: Diameter of Riser (in) = Cylinder Diameter (in) = Cylinder Thickness (gage) = Cylinder Height (in) =
x2
From Hydrograph 87.6 62.4 Pi * (DR/24)2 * Total Ht of Riser
27-1 0.21 2.5 0.9
18 27 16 8
From Hydrograph Ref 4, III-104, Table 3.14-D
SB Dims SB 08
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/4/15 Date: 3/6/15
Task:
Sediment Basin #8
Sheet: 4
Of: 4
Determine Tailwater conditions to size outlet apron Use Normal Depth Procedure (Manning's Eqn.) A*R2/3 = Q*n/1.49 s0.5
Area (A)= bd+z(d^2)
Z req = Q*n/1.49s0.5
R=Area/(b+2d((z^2)+1)^.5)
n= Vp (ft/sec) = Side Slope (z) = s (ft/ft) = Bottom Width (ft) = QB (cfs) =
Q (cfs) 2.6
Zreq 0.86
0.069 9 5 0.02 6 2.6 Flow Depth d (ft) 0.29
Ref 2, II-7
Zav = A*R2/3
6-inch diameter Rip Rap, Lined Channel Permissible Velocity for lining enter X for X:1 Outlet Slope (estimated) 6 * Barrel Diameter Peak Flow out of the barrel 10-yr Hydrograph
A (sf) 2.2
R (ft) 0.24
Zav 0.86
Flow Depth = Tailwater, d (ft) = 0.29 0.5* Barrel Diameter (ft) = 0.50 Minimum Tailwater Conditions: d0.5*Diameter of Outlet Pipe Since the Tailwater is less than half of the diameter of the outlet, use Minimum Tailwater conditions. Barrel Diameter (ft) 1
Entrance (ft) 3
Length (ft) 8
Outlet Width (ft) 9
Median Rip Rap Size d50 0.3
V (ft/sec) 1.2 Ref 1, 8.06.3
Selected Rip Rap Size (in) Class A
Conclusion The temporary basin can contain the 25-yr storm.
SB Dims SB 08
I Job No. 0453925-237673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow
Diameter of Riser (in) = Circumference of Riser (in) = Height of Riser from bottom of barrel (in) = Vertical spacing between holes (in) = Water Stage increment (ft)
18 56.5 54 0 0.05
l
Computed: PAW Date: 3/4/15 Checked: MDP Date: 3/6/15 Sheet: 1 Of: 2
From Hydrograph center to center
Orifice Equation Q = Cd * A * (2 * g * h)0.5 Q = cfs, discharge Cd = 0.6 coefficient of discharge A = sf, cross sectional area
Ref 1, p III-11
ft/sec2, gravity g = 32.2 h = ft, driving head measured from the center of the pipe
Row 1 Holes per row 0 Hole Diameter (in) 0.75 Spacing edge to edge (in) #DIV/0! Inlet Area (sf) 0.000 Hole Stage (in) 0.50 Hole Stage (ft) 0.04
2 0 0.75 #DIV/0! 0.000 0.50 0.04
Perforations 3 4 0 0 0.75 0.75 #DIV/0! #DIV/0! 0.000 0.000 0.50 0.50 0.04 0.04
5 0 0.75 #DIV/0! 0.000 0.50 0.04
Skimmer 1
# of skimmers
Water Stage (ft) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Total Flow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.00 0.00 0.29 0.00 0.00 0.00 0.00 0.00 0.34 0.00 0.00 0.00 0.16 0.16 0.39 0.00 0.00 0.00 0.16 0.16 0.44 0.00 0.00 0.00 0.16 0.16 0.49 0.00 0.00 0.00 0.16 0.16 0.54 0.00 0.00 0.00 0.16 0.16 0.59 0.00 0.00 0.00 0.16 0.16 0.64 0.00 0.00 0.00 0.16 0.16 0.69 0.00 0.00 0.00 0.16 0.16 0.74 0.00 0.00 0.00 0.16 0.16 0.79 0.00 0.00 0.00 0.16 0.16 0.84 0.00 0.00 0.00 0.16 0.16 0.89 0.00 0.00 0.00 0.16 0.16 0.94 0.00 0.00 0.00 0.16 0.16 0.99 0.00 0.00 0.00 0.16 0.16 1.04 0.00 0.00 0.00 0.16 0.16 1.09 0.00 0.00 0.00 0.16 0.16 1.14 0.00 0.00 0.00 0.16 0.16 1.19 0.00 0.00 0.00 0.16 0.16 1.24 0.00 0.00 0.00 0.16 0.16 1.29 0.00 0.00 0.00 0.16 0.16 1.34 0.00 0.00 0.00 0.16 0.16 1.39 0.00 0.00 0.00 0.16 0.16 1.44 0.00 0.00 0.00 0.16 0.16 1.49 0.00 0.00 0.00 0.16 0.16 1.54 0.00 0.00 0.00 0.16 0.16 1.59 0.00 0.00 0.00 0.16 0.16 SB 08
Pipe Perf-Skimmer
I Job No. 0453925-237673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow 1.64 1.69 1.74 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.59 2.64 2.69 2.74 2.79 2.84 2.89 2.94 2.99 3.04 3.09 3.14 3.19 3.24 3.29 3.34 3.39 3.44 3.49 3.54 3.59 3.64 3.69 3.74 3.79 3.84 3.89 3.94 3.99
SB 08
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
l
Computed: PAW Date: 3/4/15 Checked: MDP Date: 3/6/15 Sheet: 2 Of: 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16
0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16
Pipe Perf-Skimmer
Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: _1__of _2__
Sediment Basin #
Qp =
71.25
cfs
Tp =
26.88
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
SB 08
Colon
1 12 3.5 4.5 5.3 6.0 10 18 0
10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
277.50 278.30 279.00
273.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
8
Phase 1
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.0 0 0.0 0.00 0.00 3.8 116 0.1 0.00 0.00 8.4 575 0.2 0.00 0.00 14.5 1,584 0.3 0.16 0.16 21.7 3,301 0.5 0.16 0.16 29.7 5,884 0.7 0.16 0.16 38.0 9,424 1.0 0.16 0.16 46.1 13,960 1.2 0.16 0.16 53.7 19,476 1.5 0.16 0.16 60.3 25,904 1.7 0.16 0.16 65.6 33,126 2.0 0.16 0.16 69.2 40,980 2.2 0.16 0.16 71.1 49,271 2.5 0.16 0.16 70.9 57,780 2.7 0.16 0.16 68.9 66,274 3.0 0.16 0.16 65.1 74,525 3.2 0.16 0.16 59.7 82,313 3.4 0.16 0.16 54.2 89,462 3.5 0.16 0.16 49.2 95,950 3.7 0.16 0.16 44.7 101,837 3.8 0.16 0.16 40.6 107,181 3.9 0.16 0.16 36.8 112,029 4.0 0.16 0.16 33.4 116,430 4.1 0.16 0.16 30.3 120,422 4.2 0.16 0.16 27.5 124,045 4.3 0.16 0.16 25.0 127,333 4.3 0.16 0.16 22.7 130,315 4.4 0.16 0.16 20.6 133,021 4.4 0.16 0.16 18.7 135,475 4.5 0.16 0.16 17.0 137,702 4.5 0.16 0.21 15.4 139,715 4.6 0.16 0.39 14.0 141,519 4.6 0.16 0.61 12.7 143,125 4.6 0.16 0.84 11.5 144,549 4.7 0.16 1.07 10.5 145,805 4.7 0.16 1.29 9.5 146,907 4.7 0.16 1.49 8.6 147,869 4.7 0.16 1.68 7.8 148,703 4.7 0.16 1.85 7.1 149,422 4.7 0.16 2.00 6.5 150,036 4.8 0.16 2.13 5.9 150,555 4.8 0.16 2.24
4.0E-03 2 100% 4.8 2.6 2.6 0.0
1.7 10,091
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 277.79 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 7.57 0.21 0.00 7.61 0.39 0.00 7.64 0.61 0.00 7.67 0.84 0.00 7.69 1.07 0.00 7.71 1.29 0.00 7.73 1.49 0.00 7.75 1.68 0.00 7.76 1.85 0.00 7.78 2.00 0.00 7.79 2.13 0.00 7.79 2.24
Bound Discharge [cfs] 0.00 0.00 5.83 11.46 17.58 23.98 30.61 37.35 44.10 50.76 57.26 63.53 69.51 75.14 80.37 85.17 89.50 93.33 96.68 99.58 102.12 104.35 106.32 108.06 109.61 110.99 112.23 113.33 114.32 115.21 116.00 116.72 117.35 117.91 118.41 118.84 119.22 119.55 119.83 120.08 120.29 120.46
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 2,650 N/A 5,208 N/A 7,991 100% 10,899 100% 13,914 100% 16,978 100% 20,045 100% 23,073 100% 26,028 100% 28,879 100% 31,595 100% 34,154 100% 36,532 100% 38,712 100% 40,680 100% 42,425 100% 43,944 100% 45,264 100% 46,417 100% 47,431 100% 48,326 100% 49,119 100% 49,824 100% 50,452 100% 51,013 100% 51,514 100% 51,964 100% 52,367 100% 52,729 100% 53,053 100% 53,341 100% 53,597 100% 53,821 100% 54,018 100% 54,190 100% 54,340 100% 54,469 100% 54,580 100% 54,675 100% 54,755 100% SB 10-yr (P1) HG
Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: _2__of _2__
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 08
5.3 4.8 4.4 4.0 3.6 3.3 3.0 2.7 2.5 2.2 2.0 1.8 1.7 1.5 1.4 1.2 1.1 1.0 0.9 0.8 0.8 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
150,990 151,348 151,638 151,867 152,041 152,166 152,248 152,292 152,301 152,280 152,232 152,161 152,070 151,961 151,836 151,698 151,549 151,389 151,222 151,048 150,868 150,683 150,495 150,304 150,111 149,916 149,721 149,525 149,330 149,135 148,942 148,749 148,558 148,369 148,182 147,996 147,813 147,633 147,455 147,279 147,106 146,935 146,768 146,603 146,440 146,281 146,124 145,970 145,818 145,669 145,523 145,380 145,239 145,100 144,964 144,831 144,700 144,571 144,445 144,321 144,199 144,080
4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.6 4.6 4.6 4.6
0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16
2.33 2.41 2.48 2.53 2.57 2.60 2.62 2.63 2.63 2.62 2.61 2.60 2.58 2.55 2.52 2.49 2.46 2.42 2.39 2.35 2.31 2.27 2.23 2.18 2.14 2.10 2.06 2.02 1.98 1.94 1.90 1.86 1.82 1.78 1.74 1.71 1.67 1.63 1.60 1.56 1.53 1.50 1.47 1.44 1.41 1.38 1.35 1.32 1.29 1.26 1.24 1.21 1.19 1.16 1.14 1.12 1.10 1.07 1.05 1.03 1.01 0.99
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
7.80 7.81 7.81 7.82 7.82 7.82 7.82 7.82 7.82 7.82 7.82 7.82 7.82 7.82 7.82 7.81 7.81 7.81 7.81 7.80 7.80 7.80 7.79 7.79 7.79 7.78 7.78 7.78 7.77 7.77 7.77 7.76 7.76 7.76 7.75 7.75 7.75 7.75 7.74 7.74 7.74 7.73 7.73 7.73 7.73 7.72 7.72 7.72 7.71 7.71 7.71 7.71 7.70 7.70 7.70 7.70 7.70 7.69 7.69 7.69 7.69 7.68
2.33 2.41 2.48 2.53 2.57 2.60 2.62 2.63 2.63 2.62 2.61 2.60 2.58 2.55 2.52 2.49 2.46 2.42 2.39 2.35 2.31 2.27 2.23 2.18 2.14 2.10 2.06 2.02 1.98 1.94 1.90 1.86 1.82 1.78 1.74 1.71 1.67 1.63 1.60 1.56 1.53 1.50 1.47 1.44 1.41 1.38 1.35 1.32 1.29 1.26 1.24 1.21 1.19 1.16 1.14 1.12 1.10 1.07 1.05 1.03 1.01 0.99
120.61 120.73 120.83 120.90 120.96 121.00 121.03 121.05 121.05 121.04 121.03 121.00 120.97 120.93 120.89 120.85 120.80 120.74 120.69 120.63 120.57 120.50 120.44 120.38 120.31 120.24 120.18 120.11 120.05 119.98 119.91 119.85 119.78 119.72 119.65 119.59 119.53 119.47 119.41 119.35 119.29 119.23 119.17 119.11 119.06 119.00 118.95 118.90 118.84 118.79 118.74 118.69 118.64 118.60 118.55 118.50 118.46 118.41 118.37 118.33 118.29 118.24
54,822 54,877 54,921 54,956 54,983 55,002 55,014 55,021 55,022 55,019 55,012 55,001 54,987 54,970 54,951 54,930 54,907 54,883 54,857 54,831 54,803 54,775 54,746 54,716 54,687 54,657 54,627 54,596 54,566 54,536 54,506 54,477 54,447 54,418 54,389 54,360 54,331 54,303 54,276 54,248 54,221 54,195 54,169 54,143 54,118 54,093 54,068 54,044 54,020 53,997 53,974 53,952 53,930 53,908 53,886 53,865 53,845 53,825 53,805 53,785 53,766 53,747
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #8 Colon Mine Phase 1 Hydrograph 10-Yr Storm
This page intentionally left blank.
Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: _1__of _2__
Sediment Basin #
Qp =
88.20
cfs
Tp =
27.23
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
SB 08
Colon
1 12 3.5 4.5 5.3 6.0 10 18 0
25 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
277.50 278.30 279.00
273.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
8
Phase 1
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.2 0 0.0 0.00 0.00 4.6 140 0.1 0.00 0.00 10.2 694 0.2 0.00 0.00 17.5 1,912 0.4 0.16 0.16 26.2 3,992 0.6 0.16 0.16 35.9 7,122 0.8 0.16 0.16 46.1 11,415 1.1 0.16 0.16 56.1 16,923 1.3 0.16 0.16 65.5 23,635 1.6 0.16 0.16 73.7 31,473 1.9 0.16 0.16 80.4 40,302 2.2 0.16 0.16 85.2 49,933 2.5 0.16 0.16 87.8 60,135 2.8 0.16 0.16 88.0 70,647 3.1 0.16 0.16 86.0 81,191 3.3 0.16 0.16 81.7 91,488 3.6 0.16 0.16 75.4 101,272 3.8 0.16 0.16 68.6 110,303 4.0 0.16 0.16 62.4 118,519 4.1 0.16 0.16 56.7 125,986 4.3 0.16 0.16 51.5 132,771 4.4 0.16 0.16 46.8 138,937 4.5 0.16 0.31 42.6 144,520 4.7 0.16 1.07 38.7 149,502 4.7 0.16 2.01 35.2 153,904 4.8 0.16 3.01 32.0 157,764 4.9 0.16 3.97 29.1 161,124 5.0 0.16 4.88 26.4 164,025 5.0 0.16 5.71 24.0 166,509 5.0 0.16 6.45 21.8 168,617 5.1 0.16 7.09 19.8 170,384 5.1 0.16 7.65 18.0 171,847 5.1 0.16 8.11 16.4 173,037 5.2 0.16 8.50 14.9 174,025 5.2 0.16 8.82 13.5 174,832 5.2 0.16 9.09 12.3 175,476 5.2 0.16 9.30 11.2 175,970 5.2 0.16 9.47 10.2 176,328 5.2 0.16 9.59 9.2 176,564 5.2 0.16 9.67 8.4 176,688 5.2 0.16 9.71 7.6 176,712 5.2 0.16 9.72
4.0E-03 2 100% 5.2 8.2 8.2 0.0
1.7 10,091
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 278.22 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 0.16 0.16 0.00 7.59 0.31 0.00 7.69 1.07 0.00 7.78 2.01 0.00 7.85 3.01 0.00 7.91 3.97 0.00 7.97 4.88 0.00 8.01 5.71 0.00 8.05 6.45 0.00 8.08 7.09 0.00 8.11 7.65 0.00 8.13 8.11 0.00 8.15 8.15 0.00 8.17 8.17 0.00 8.18 8.18 0.00 8.19 8.19 0.00 8.19 8.19 0.00 8.20 8.20 0.00 8.20 8.20 0.00 8.21 8.21 0.00 8.21 8.21
Bound Discharge [cfs] 0.00 0.00 6.31 12.40 19.04 25.98 33.18 40.50 47.84 55.09 62.17 69.02 75.56 81.74 87.50 92.79 97.60 101.88 105.62 108.88 111.73 114.23 116.44 118.40 120.10 121.59 122.87 123.96 124.90 125.70 126.37 126.93 127.39 127.76 128.07 128.32 128.52 128.67 128.78 128.85 128.89 128.90
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 2,869 N/A 5,638 N/A 8,653 100% 11,810 100% 15,083 100% 18,410 100% 21,743 100% 25,039 100% 28,261 100% 31,373 100% 34,347 100% 37,154 100% 39,771 100% 42,179 100% 44,362 100% 46,308 100% 48,010 100% 49,490 100% 50,784 100% 51,923 100% 52,928 100% 53,817 100% 54,593 100% 55,266 100% 55,848 100% 56,347 100% 56,774 100% 57,136 100% 57,440 100% 57,694 100% 57,903 100% 58,072 100% 58,212 100% 58,326 100% 58,416 100% 58,486 100% 58,536 100% 58,569 100% 58,586 100% 58,590 100% SB 25-yr (P1) HG
Computed By: PAW Date: 3/5/15 Checked By: MDP Date: 3/6/15 Sheet: _2__of _2__
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 08
6.9 6.3 5.7 5.2 4.7 4.3 3.9 3.6 3.2 2.9 2.7 2.4 2.2 2.0 1.8 1.7 1.5 1.4 1.2 1.1 1.0 0.9 0.8 0.8 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
176,643 176,491 176,263 175,967 175,609 175,195 174,729 174,218 173,664 173,073 172,447 171,791 171,110 170,430 169,751 169,077 168,407 167,745 167,090 166,445 165,810 165,185 164,571 163,968 163,378 162,800 162,234 161,680 161,139 160,610 160,093 159,589 159,097 158,617 158,148 157,692 157,247 156,813 156,389 155,977 155,575 155,184 154,802 154,431 154,068 153,715 153,371 153,036 152,709 152,391 152,081 151,778 151,483 151,196 150,916 150,642 150,376 150,116 149,862 149,614 149,373 149,137
5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 4.9 4.9 4.9 4.9 4.9 4.9 4.9 4.9 4.9 4.9 4.9 4.9 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.7 4.7 4.7 4.7
0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16
9.70 9.65 9.57 9.47 9.35 9.21 9.06 8.89 8.70 8.51 8.31 8.09 7.88 7.66 7.45 7.23 7.03 6.82 6.62 6.43 6.24 6.05 5.87 5.69 5.52 5.35 5.19 5.04 4.89 4.74 4.60 4.46 4.33 4.20 4.08 3.96 3.84 3.73 3.62 3.52 3.42 3.32 3.22 3.13 3.05 2.96 2.88 2.80 2.72 2.65 2.58 2.51 2.44 2.38 2.32 2.26 2.20 2.14 2.09 2.04 1.99 1.94
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
8.20 8.20 8.20 8.19 8.19 8.18 8.18 8.17 8.16 8.15 8.14 8.13 8.12 8.11 8.10 8.09 8.08 8.07 8.06 8.05 8.04 8.03 8.02 8.01 8.00 7.99 7.98 7.98 7.97 7.96 7.95 7.94 7.93 7.93 7.92 7.91 7.90 7.90 7.89 7.88 7.88 7.87 7.86 7.86 7.85 7.85 7.84 7.84 7.83 7.83 7.82 7.81 7.81 7.81 7.80 7.80 7.79 7.79 7.78 7.78 7.77 7.77
8.20 8.20 8.20 8.19 8.19 8.18 8.18 8.17 8.16 8.15 8.14 8.09 7.88 7.66 7.45 7.23 7.03 6.82 6.62 6.43 6.24 6.05 5.87 5.69 5.52 5.35 5.19 5.04 4.89 4.74 4.60 4.46 4.33 4.20 4.08 3.96 3.84 3.73 3.62 3.52 3.42 3.32 3.22 3.13 3.05 2.96 2.88 2.80 2.72 2.65 2.58 2.51 2.44 2.38 2.32 2.26 2.20 2.14 2.09 2.04 1.99 1.94
128.88 128.83 128.76 128.67 128.56 128.43 128.28 128.13 127.95 127.77 127.57 127.37 127.15 126.94 126.73 126.51 126.30 126.09 125.88 125.68 125.48 125.28 125.08 124.88 124.69 124.51 124.32 124.15 123.97 123.80 123.63 123.46 123.30 123.15 122.99 122.84 122.70 122.55 122.41 122.28 122.14 122.01 121.89 121.76 121.64 121.52 121.41 121.30 121.19 121.08 120.98 120.87 120.77 120.68 120.58 120.49 120.40 120.31 120.23 120.14 120.06 119.98
58,580 58,559 58,527 58,485 58,435 58,377 58,311 58,239 58,161 58,077 57,988 57,895 57,798 57,700 57,603 57,506 57,410 57,315 57,220 57,126 57,034 56,943 56,854 56,766 56,679 56,594 56,511 56,430 56,350 56,271 56,195 56,120 56,047 55,975 55,905 55,837 55,770 55,705 55,642 55,580 55,519 55,460 55,403 55,346 55,291 55,238 55,186 55,135 55,085 55,036 54,989 54,943 54,897 54,853 54,810 54,768 54,727 54,687 54,648 54,610 54,573 54,537
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 25-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #8 Colon Mine Phase 1 Hydrograph 25-Yr Storm
This page intentionally left blank.
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/5/15 Date: 3/6/15
Task:
Sediment Basin #9
Sheet: 1
Of:
Objective
Design the sediment basin to contain the 25-year storm and pass the 100-year storm without over topping the berm.
4
References 1. NC Erosion and Sediment Control Planning and Design Manual. 2. "Elements of Urban Stormwater Design" by H. Rooney Malcom, P.E. 3. NOAA Atlas 14, Volume 2, Version 3 4. VA Erosion and Sediment Control Handbook Given Phase Storm Event (yrs) = Total Drainage Area A (ac) = Disturbed Area (ac) = Curve Number CN = Rainfall Depth P (in) = Peak Flow Qp (cfs) =
1 10 62.8 46.7 72 5.28 145.70
2 10 85.9 65.9 72 5.28 199.50
2 25 85.9 65.9 72 6.28 268.73
2 100 85.9 65.9 72 7.88 384.06
Hydrographs (24-hr rainfall) Hydrographs
Ref 3
Design Criteria Required sediment storage Required sediment storage
1,800 154,620
cf / acre of drainage cf (based on largest Phase)
Required Surface Area Required Surface Area (SF)
435 86,783
sf/cfs of the 10-yr storm peak flow (based on the largest Phase in cfs) of the 10-yr storm peak flow (based on the largest Phase)
Determine Shape of Basin: Measure the area of the Basin using AutoCADD. Calculate Volume of the Basin using Truncated Pyramid Method. Shape factor used in hydrographs basin depth may be gretaer than indicated below
Elevation (ft) 262 263 264 265 266 267 268
Depth (ft) 0 1 2 3 4 5 6
Area (sf) 88,670 92,409 96,226 100,091 103,992 107,938 111,933
Volume (cf) 0 90,533 94,311 98,152 102,035 105,959 109,929
Design Sediment Depth (ft) = 3 Sediment Storage (cf) = 282,996 Design Surface Area Depth (ft) = 3 Surface Area (sf) = 100,091
Cumulative Vol (cf) 0 90,533 184,844 282,996 385,032 490,990 600,920
Cumulative Vol (cy) 0 3,353 6,846 10,481 14,260 18,185 22,256
Required Sediment Storage Achieved
Required Surface Area Achieved
SB Dims SB 09
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/5/15 Date: 3/6/15
Task:
Sediment Basin #9
Sheet: 2
Of:
4
Select Skimmer A. R. Jarrett Method D = [Q / (2,310 * (H0.5)]0.5 D =Diameter of Orifice (inches) Q = Dewater Rate (cf/day) H = Head on orifice, varies based on skimmer size (ft) Skimmer Sizes (Inches) 1.5 2 2.5 3 4 5 6 8 Volume to Dewater (cf) = Number of Skimmers Days to Drain = Q each (cf/day) = Selected Skimmer Size (inches) = Head on Skimmer (feet) = Diameter of Orifice (inches) =
Head (ft) 0.125 0.167 0.167 0.250 0.333 0.333 0.417 0.500 282,996 2 5 28,300
assumed 0.33 cfs
5 0.333 4.6
Route the flow through the Basin Riser is not perforated, but skimmer is attached. S = (1000/CN) - 10 2 Runoff Depth Q* (inches) = (P-0.2S) /(P+0.8S) TP (min) = 60.5(Q*)A/QP/1.39
Phase Storm Event (yrs) = S= Runoff Depth Q* (inches) = Time to Peak Tp (min) =
1 10 3.89 2.42 45.32
2 10 3.89 2.42 45.27
Ref 2, III-4
2 25 3.89 3.22 44.85
Determine Pond Storage Elevation (ZWater): Pick one point near max expected water surface and the other at the mid depth. Z1 (ft) = 3 S1 (cf)= 282,996 Z2 (ft) = 6 S2 (cf) = 600,920 b = ln(S2/S1)/ln(Z2/Z1) = 1.1 b
KS = S2/Z2 =
2 100 3.89 4.59 44.68
Ref 2, III-8
85,791
SB Dims SB 09
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/5/15 Date: 3/6/15
Task:
Sediment Basin #9
Sheet: 3
Of:
Determine Settling Velocity Conversion Factor =
3.281 ft/sec per m/sec
2
Gravitational Acceleration, g (m/s ) = Specific Gravity of soil (ss)= Kinematic Viscosity of water (v) = Diameter of the Design Particle d15 = Design Particle Settling Velocity
4
9.81 2.6 2 o 1.14E-06m / sec @ 20 C 40.00E-06 m
=
( g / 18 ) * [ ( ss
Route the Storm through the Basin using the Hydrograph Model Set Height of Emergency Spillway at (ft) = 7.50 Set Top of Dam at (ft) = 8.50 Emergency Spillway QE (cfs) = 100-Yr Storm QE (cfs) = 55.2 Cross Section = Trapezoid Channel Side Slope (z) = 5 n= 0.03 Vp (ft/sec) = 5.0 Allowable Shear Stress (psf) = 2.0 Bottom Width, b (ft) = 50
Ref 2, IV-11
2
-1)/v]d =
4.02E-03
ft/sec
See Hydrograph
(enter X for X:1) Grass Lined Permissible Velocity for lining Allowable Shear Stress for lining
Ref 2, II-7
Calculate Required Depth of Spillway: Normal-Depth Procedure AR2/3=Qn/1.49s0.5
Q=VA
Zreq=Qn/1.49s0.5
Area (A)= bd+z(d^2)
2/3
Zav=AR
Channel Slope ft/ft 0.01 0.02
Depth, d (ft) 0.40 0.33
A (sf) 20.94 16.91
Construct the channel to be :
R=Area/(b+2d((z^2)+1)^.5) Avg Shear Stress(T) = Kb*d*s*unit weight of water
Zreq 11.12 7.86 50 1.0 1%
R 0.39 0.32
Z avail 11.12 7.86
V (ft/sec) 2.6 3.3
T (psf) 0.3 0.4
ft, Bottom Width (measured at top of lining) ft, depth (measured at top of lining) slope
Anti-Seep Collar: Anti-Seep Collar Size = 2 * Barrel Dia Anti-Seep Collar Size (ft) = 7 Use Anti-Seep Collar Size (ft) = 7
x7
SB Dims SB 09
I Job No. 0453925-237673-018
HDR Computation
l
Project: Subject:
Charah Colon Mine Permit Application
Computed: PAW Checked: MDP
Date: 3/5/15 Date: 3/6/15
Task:
Sediment Basin #9
Sheet: 4
Of: 4
Minimum Concrete Base for Riser: Diameter of Riser (in) = 72 Avg Density of Concrete (lbs/cf) = Density of Water (lbs/cf) =
From Hydrograph 87.6 62.4
Riser Displacement (cf) = 189.44 Convert cf to cy = Min Concrete Needed (cy) = Width & Length (ft) = Thickness (ft) =
27-1 5.00 7 2.8
Anti-Vortex Device: Diameter of Riser (in) = Cylinder Diameter (in) = Cylinder Thickness (gage) = Cylinder Height (in) =
72 102 14 36
Pi * (DR/24)2 * Total Ht of Riser
From Hydrograph Ref 4, III-104, Table 3.14-D
Determine Tailwater conditions to size outlet apron Use Normal Depth Procedure (Manning's Eqn.) A*R2/3 = Q*n/1.49 s0.5
Area (A)= bd+z(d^2)
Z req = Q*n/1.49s0.5
R=Area/(b+2d((z^2)+1)^.5)
n= Vp (ft/sec) = Side Slope (z) = s (ft/ft) = Bottom Width (ft) = QB (cfs) =
Q (cfs) 85.1
Zreq 27.88
0.069 9 5 0.02 10.5 85.1 Flow Depth d (ft) 1.50
Ref 2, II-7
Zav = A*R2/3
6-inch diameter Rip Rap, Lined Channel Permissible Velocity for lining enter X for X:1 Outlet Slope (estimated) 6 * Barrel Diameter Peak Flow out of the barrel 25-yr Hydrograph
A (sf) 27.0
R (ft) 1.05
Zav 27.88
V (ft/sec) 3.1
Flow Depth = Tailwater, d (ft) = 1.50 0.5* Barrel Diameter (ft) = 1.75 Minimum Tailwater Conditions: d0.5*Diameter of Outlet Pipe Since the Tailwater is less than half of the diameter of the outlet, use Minimum Tailwater conditions. Barrel Diameter (ft) 3.5
Entrance (ft) 10.5
Length (ft) 22
Outlet Width (ft) 26
Median Rip Rap Size d50 0.7
Ref 1, 8.06.3
Selected Rip Rap Size (in) Class B
Conclusion The basin can contain the 25-yr storm and pass the 100-yr storm without overtopping the berm.
SB Dims SB 09
I Job No. 0453925-23673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow
Diameter of Riser (in) = Circumference of Riser (in) = Height of Riser from bottom of barrel (in) = Vertical spacing between holes (in) = Water Stage increment (ft)
72 226.2 80 0 0.05
l
Computed: PAW Date: 3/5/15 Checked: MDP Date: 3/6/15 Sheet 1 Of 2
From Hydrograph center to center
Orifice Equation Q = Cd * A * (2 * g * h)0.5 Q = cfs, discharge Cd = 0.6 coefficient of discharge A = sf, cross sectional area
Ref 1, p III-11
ft/sec2, gravity g = 32.2 h = ft, driving head measured from the center of the pipe
Row Holes per row Hole Diameter (in) Spacing edge to edge (in) Inlet Area (sf) Hole Stage (in) Hole Stage (ft)
1 0 0.75
2 0 0.75
Perforations 3 0 0.75
4 0 0.75
5 0 0.75
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
0.000 0.50 0.04
Skimmer 2
# of skimmers
Water Stage (ft) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Flow (cfs) Total Flow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.19 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.00 0.00 0.29 0.00 0.00 0.00 0.00 0.00 0.34 0.00 0.00 0.00 0.66 0.66 0.39 0.00 0.00 0.00 0.66 0.66 0.44 0.00 0.00 0.00 0.66 0.66 0.49 0.00 0.00 0.00 0.66 0.66 0.54 0.00 0.00 0.00 0.66 0.66 0.59 0.00 0.00 0.00 0.66 0.66 0.64 0.00 0.00 0.00 0.66 0.66 0.69 0.00 0.00 0.00 0.66 0.66 0.74 0.00 0.00 0.00 0.66 0.66 0.79 0.00 0.00 0.00 0.66 0.66 0.84 0.00 0.00 0.00 0.66 0.66 0.89 0.00 0.00 0.00 0.66 0.66 0.94 0.00 0.00 0.00 0.66 0.66 0.99 0.00 0.00 0.00 0.66 0.66 1.04 0.00 0.00 0.00 0.66 0.66 1.09 0.00 0.00 0.00 0.66 0.66 1.14 0.00 0.00 0.00 0.66 0.66 1.19 0.00 0.00 0.00 0.66 0.66 1.24 0.00 0.00 0.00 0.66 0.66 1.29 0.00 0.00 0.00 0.66 0.66 1.34 0.00 0.00 0.00 0.66 0.66 1.39 0.00 0.00 0.00 0.66 0.66 1.44 0.00 0.00 0.00 0.66 0.66 1.49 0.00 0.00 0.00 0.66 0.66 1.54 0.00 0.00 0.00 0.66 0.66 1.59 0.00 0.00 0.00 0.66 0.66 SB 09
Pipe Perf-Skimmer
I Job No. 0453925-23673-018
HDR Computation Project: Subject: Task:
Charah Colon Mine Permit Application Riser Pipe Perforations/Skimmer Flow 1.64 1.69 1.74 1.79 1.84 1.89 1.94 1.99 2.04 2.09 2.14 2.19 2.24 2.29 2.34 2.39 2.44 2.49 2.54 2.59 2.64 2.69 2.74 2.79 2.84 2.89 2.94 2.99 3.04 3.09 3.14 3.19 3.24 3.29 3.34 3.39 3.44 3.49 3.54 3.59 3.64 3.69 3.74 3.79 3.84 3.89 3.94 3.99
SB 09
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
l
Computed: PAW Date: 3/5/15 Checked: MDP Date: 3/6/15 Sheet 2 Of 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66
Pipe Perf-Skimmer
Computed By: PAW Date:3/5/15 Checked By: MDP Date: 3/6/15 Sheet: _1___of __2__
Sediment Basin #
Qp =
145.70
cfs
Tp =
45.32
minutes
dT = Max of
2 1.0%
minutes of increment to peak
or
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
SB 09
Colon
2 42 3.2 6.7 7.5 8.5 50 72 0
10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
268.70 269.50 270.50
262.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82
9
Phase 1
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 0.7 0 0.0 0.00 0.00 2.8 84 0.0 0.00 0.00 6.2 418 0.0 0.00 0.00 10.9 1,163 0.0 0.00 0.00 16.8 2,473 0.0 0.00 0.00 23.8 4,491 0.1 0.00 0.00 31.7 7,345 0.1 0.00 0.00 40.4 11,149 0.2 0.00 0.00 49.7 15,998 0.2 0.00 0.00 59.5 21,965 0.3 0.00 0.00 69.5 29,104 0.4 0.66 0.66 79.6 37,290 0.5 0.66 0.66 89.6 46,686 0.6 0.66 0.66 99.2 57,277 0.7 0.66 0.66 108.3 69,025 0.8 0.66 0.66 116.8 81,869 1.0 0.66 0.66 124.4 95,727 1.1 0.66 0.66 131.0 110,498 1.3 0.66 0.66 136.5 126,064 1.4 0.66 0.66 140.8 142,289 1.6 0.66 0.66 143.8 159,029 1.8 0.66 0.66 145.4 176,125 1.9 0.66 0.66 145.6 193,415 2.1 0.66 0.66 144.4 210,732 2.3 0.66 0.66 141.9 227,909 2.5 0.66 0.66 138.0 244,779 2.6 0.66 0.66 132.9 261,185 2.8 0.66 0.66 126.6 276,976 2.9 0.66 0.66 119.8 292,013 3.1 0.66 0.66 113.1 306,229 3.2 0.66 0.66 106.8 319,644 3.4 0.66 0.66 100.8 332,302 3.5 0.66 0.66 95.2 344,246 3.6 0.66 0.66 89.9 355,514 3.7 0.66 0.66 84.9 366,146 3.8 0.66 0.66 80.2 376,176 3.9 0.66 0.66 75.7 385,638 4.0 0.66 0.66 71.5 394,564 4.1 0.66 0.66 67.5 402,984 4.2 0.66 0.66 63.7 410,925 4.2 0.66 0.66 60.2 418,414 4.3 0.66 0.66
4.0E-03 2 100% 5.4 1.3 1.3 0.0
1.1 85,791
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 267.39 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs Peak Weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFLOW [cfs] [cfs] [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31
Bound Discharge [cfs] 0.00 0.00 118.17 134.27 145.65 154.66 162.17 168.64 174.33 179.41 183.99 188.16 191.90 195.36 198.56 201.53 204.28 206.84 209.21 211.42 213.46 215.36 217.12 218.74 220.23 221.61 222.87 224.03 225.07 226.02 226.88 227.65 228.36 229.00 229.59 230.13 230.62 231.08 231.50 231.89 232.25 232.58
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 53,715 N/A 61,030 N/A 66,206 N/A 70,300 N/A 73,715 N/A 76,656 N/A 79,242 N/A 81,550 N/A 83,632 N/A 85,525 100% 87,227 100% 88,800 100% 90,256 100% 91,605 100% 92,856 100% 94,018 100% 95,097 100% 96,099 100% 97,029 100% 97,891 100% 98,689 100% 99,426 100% 100,107 100% 100,732 100% 101,306 100% 101,830 100% 102,306 100% 102,737 100% 103,126 100% 103,479 100% 103,799 100% 104,091 100% 104,357 100% 104,602 100% 104,827 100% 105,035 100% 105,226 100% 105,403 100% 105,566 100% 105,718 100% SB 10-yr (P1) HG
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: _2___of __2__
84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 09
56.8 53.6 50.7 47.8 45.2 42.6 40.3 38.0 35.9 33.9 32.0 30.2 28.5 26.9 25.4 24.0 22.7 21.4 20.2 19.1 18.0 17.0 16.1 15.2 14.3 13.5 12.8 12.1 11.4 10.8 10.2 9.6 9.1 8.6 8.1 7.6 7.2 6.8 6.4 6.1 5.7 5.4 5.1 4.8 4.6 4.3 4.1 3.8 3.6 3.4 3.2 3.0 2.9 2.7 2.6 2.4 2.3 2.2 2.0 1.9 1.8 1.7
425,478 432,138 438,419 444,340 449,923 455,185 460,146 464,821 469,226 473,378 477,289 480,973 484,443 487,710 490,787 493,684 496,410 498,975 501,389 503,659 505,794 507,801 509,688 511,460 513,125 514,688 516,156 517,532 518,824 520,034 521,168 522,231 523,225 524,155 525,024 525,836 526,595 527,302 527,960 528,574 529,144 529,674 530,166 530,621 531,042 531,431 531,790 532,119 532,422 532,699 532,952 533,182 533,390 533,578 533,747 533,897 534,030 534,148 534,249 534,337 534,411 534,471
4.4 4.4 4.5 4.5 4.6 4.6 4.7 4.7 4.8 4.8 4.9 4.9 4.9 5.0 5.0 5.0 5.0 5.1 5.1 5.1 5.1 5.1 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66
1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31
232.89 233.18 233.45 233.69 233.93 234.14 234.34 234.53 234.71 234.87 235.03 235.17 235.31 235.43 235.55 235.66 235.76 235.86 235.95 236.03 236.11 236.19 236.26 236.32 236.38 236.44 236.50 236.55 236.59 236.64 236.68 236.72 236.75 236.78 236.82 236.84 236.87 236.90 236.92 236.94 236.96 236.98 237.00 237.02 237.03 237.04 237.06 237.07 237.08 237.09 237.10 237.11 237.11 237.12 237.13 237.13 237.14 237.14 237.14 237.15 237.15 237.15
105,859 105,990 106,112 106,225 106,330 106,429 106,520 106,606 106,686 106,761 106,831 106,896 106,957 107,014 107,068 107,118 107,165 107,209 107,250 107,289 107,325 107,358 107,390 107,420 107,448 107,474 107,498 107,521 107,542 107,562 107,580 107,598 107,614 107,629 107,644 107,657 107,669 107,681 107,691 107,701 107,711 107,719 107,727 107,734 107,741 107,747 107,753 107,759 107,763 107,768 107,772 107,776 107,779 107,782 107,785 107,787 107,789 107,791 107,793 107,794 107,795 107,796
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P1) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0
OUTFLOW INFLOW [cfs] STAGE [ft]
150
3.0
100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE
FLOW (cfs)
Sediment Basin #9 Colon Mine Phase 1 Hydrograph 10-Yr Storm
This page intentionally left blank.
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: _1___of _2_
Qp = Tp = dT = Max of
or
199.50 45.27 2 1.0%
Sediment Basin # 9
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 42 3.2 6.7 7.5 8.5 50 72 0
Phase 2 10 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
268.70 269.50 270.50
262.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 09
Colon
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.0 0 0.0 0.00 0.00 3.8 115 0.0 0.00 0.00 8.5 573 0.0 0.00 0.00 15.0 1,596 0.0 0.00 0.00 23.1 3,394 0.1 0.00 0.00 32.6 6,162 0.1 0.00 0.00 43.5 10,078 0.1 0.00 0.00 55.4 15,296 0.2 0.00 0.00 68.2 21,947 0.3 0.00 0.00 81.6 30,132 0.4 0.66 0.66 95.4 39,768 0.5 0.66 0.66 109.2 51,053 0.6 0.66 0.66 122.8 63,997 0.8 0.66 0.66 136.0 78,579 0.9 0.66 0.66 148.5 94,745 1.1 0.66 0.66 160.1 112,413 1.3 0.66 0.66 170.5 131,468 1.5 0.66 0.66 179.6 151,772 1.7 0.66 0.66 187.1 173,161 1.9 0.66 0.66 192.9 195,452 2.1 0.66 0.66 196.9 218,443 2.4 0.66 0.66 199.1 241,919 2.6 0.66 0.66 199.4 265,655 2.8 0.66 0.66 197.7 289,422 3.1 0.66 0.66 194.2 312,991 3.3 0.66 0.66 188.8 336,135 3.5 0.66 0.66 181.8 358,637 3.7 0.66 0.66 173.1 380,290 3.9 0.66 0.66 163.7 400,906 4.1 0.66 0.66 154.6 420,396 4.3 0.66 0.66 146.0 438,789 4.5 0.66 0.66 137.8 456,147 4.7 0.66 0.66 130.1 472,527 4.8 0.66 0.66 122.9 487,984 5.0 0.66 0.66 116.0 502,570 5.1 0.66 0.66 109.5 516,332 5.2 0.66 0.66 103.4 529,318 5.3 0.66 0.66 97.6 541,571 5.5 0.66 0.66 92.2 553,131 5.6 0.66 0.66 87.0 564,036 5.7 0.66 0.66 82.2 574,325 5.8 0.66 0.66 77.6 584,030 5.8 0.66 0.66
WEIR FLOW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4.0E-03 2 100% 6.9 14.3 14.3 0.0
1.1 85,791
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 268.92 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
BARREL TOTAL Bound Estimated CAPACIT OUTFLOW Discharge Surface Y [cfs] [cfs] [cfs] Area (sf) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 121.18 55,083 0.00 0.00 137.69 62,584 0.00 0.00 149.36 67,893 0.00 0.00 158.60 72,091 0.00 0.00 166.30 75,592 0.00 0.00 172.94 78,608 0.00 0.00 178.77 81,260 0.00 0.00 183.98 83,627 0.66 1.31 188.68 85,761 0.66 1.31 192.88 87,675 0.66 1.31 196.75 89,434 0.66 1.31 200.32 91,055 0.66 1.31 203.62 92,554 0.66 1.31 206.67 93,941 0.66 1.31 209.50 95,227 0.66 1.31 212.12 96,420 0.66 1.31 214.56 97,528 0.66 1.31 216.82 98,556 0.66 1.31 218.92 99,509 0.66 1.31 220.86 100,393 0.66 1.31 222.66 101,211 0.66 1.31 224.33 101,967 0.66 1.31 225.86 102,665 0.66 1.31 227.27 103,306 0.66 1.31 228.57 103,893 0.66 1.31 229.75 104,430 0.66 1.31 230.82 104,918 0.66 1.31 231.79 105,359 0.66 1.31 232.67 105,758 0.66 1.31 233.46 106,119 0.66 1.31 234.18 106,447 0.66 1.31 234.84 106,746 0.66 1.31 235.44 107,019 0.66 1.31 235.99 107,270 0.66 1.31 236.50 107,501 0.66 1.31 236.97 107,713 0.66 1.31 237.40 107,910 0.66 1.31 237.80 108,091 0.66 1.31 238.17 108,259 0.66 1.31 238.51 108,415 0.66 1.31 238.83 108,559
Settling Efficiency [%] N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
Computed By: PAW
Date: 12/31/14
Checked By: EAW
Date: 1/2/15 Sheet: _2___of _2_
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 09
73.3 69.2 65.3 61.7 58.2 55.0 51.9 49.0 46.3 43.7 41.3 39.0 36.8 34.7 32.8 31.0 29.2 27.6 26.1 24.6 23.2 21.9 20.7 19.6 18.5 17.4 16.5 15.5 14.7 13.9 13.1 12.4 11.7 11.0 10.4 9.8 9.3 8.8 8.3 7.8 7.4 7.0 6.6 6.2 5.9 5.5 5.2 4.9 4.7 4.4 4.1 3.9 3.7 3.5 3.3 3.1 2.9 2.8 2.6 2.5
593,185 601,820 609,964 617,645 624,889 631,720 638,160 644,232 649,957 655,353 660,440 665,233 669,751 674,007 678,017 681,789 685,230 688,300 690,992 693,317 695,294 696,949 698,310 699,405 700,264 700,912 701,377 701,681 701,846 701,891 701,833 701,688 701,469 701,189 700,857 700,482 700,073 699,636 699,177 698,701 698,212 697,715 697,212 696,706 696,199 695,694 695,191 694,693 694,201 693,715 693,236 692,764 692,301 691,847 691,402 690,965 690,538 690,121 689,713 689,314
5.9 6.0 6.1 6.2 6.2 6.3 6.3 6.4 6.4 6.5 6.5 6.6 6.6 6.7 6.7 6.7 6.8 6.8 6.8 6.8 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.8
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.68 1.14 1.83 2.58 3.34 4.06 4.72 5.30 5.79 6.20 6.53 6.78 6.96 7.08 7.15 7.17 7.14 7.09 7.00 6.89 6.76 6.61 6.46 6.29 6.11 5.94 5.76 5.57 5.39 5.21 5.03 4.86 4.68 4.52 4.35 4.19 4.04 3.89 3.74 3.60 3.47 3.34 3.21 3.09 2.97 2.86
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 102.96 103.31 103.64 103.92 104.18 104.39 104.58 104.73 104.86 104.96 105.04 105.10 105.14 105.17 105.18 105.19 105.18 105.17 105.15 105.12 105.09 105.06 105.02 104.98 104.94 104.89 104.85 104.80 104.76 104.71 104.66 104.61 104.57 104.52 104.48 104.43 104.39 104.34 104.30 104.26 104.21 104.17 104.13 104.10 104.06 104.02
1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.31 1.36 2.28 3.65 5.17 6.69 8.13 9.44 10.60 11.58 12.40 13.06 13.56 13.93 14.17 14.30 14.34 14.29 14.17 14.00 13.78 13.52 13.23 12.91 12.58 12.23 11.87 11.51 11.15 10.78 10.42 10.07 9.71 9.37 9.03 8.70 8.39 8.07 7.77 7.48 7.20 6.93 6.67 6.42 6.18 5.94 5.72
239.13 239.40 239.66 239.90 240.12 240.33 240.52 240.70 240.87 241.03 241.18 241.32 241.45 241.57 241.68 241.79 241.88 241.97 242.05 242.11 242.16 242.21 242.25 242.28 242.30 242.32 242.33 242.34 242.35 242.35 242.35 242.34 242.34 242.33 242.32 242.31 242.30 242.28 242.27 242.26 242.25 242.23 242.22 242.20 242.19 242.18 242.16 242.15 242.13 242.12 242.11 242.09 242.08 242.07 242.06 242.04 242.03 242.02 242.01 242.00
108,693 108,818 108,935 109,043 109,144 109,239 109,327 109,409 109,486 109,558 109,626 109,689 109,748 109,803 109,855 109,903 109,947 109,987 110,021 110,050 110,075 110,096 110,113 110,127 110,137 110,145 110,151 110,155 110,157 110,158 110,157 110,155 110,152 110,149 110,145 110,140 110,135 110,129 110,124 110,118 110,112 110,105 110,099 110,093 110,086 110,080 110,074 110,067 110,061 110,055 110,049 110,043 110,037 110,031 110,026 110,020 110,015 110,010 110,004 109,999
100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 10-yr (P2) HG
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
200
4.0 TOTAL OUTFLOW [cfs] INFLOW [cfs]
150
3.0
STAGE [ft] 100
2.0
50
1.0
0.0
0 0
20
40
60
80
100
TIME (min)
120
140
160
180
STAGE (ft)
FLOW (cfs)
Sediment Basin #9 Colon Mine Phase 2 Hydrograph 10-Yr Storm
This page intentionally left blank.
Computed By: PAW Date: 12/31/14 Checked By: EAW Date: 1/2/15 Sheet: __1__of __2__
Qp = Tp =
268.73 44.85 dT = Max of 2 or 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 42 3.2 6.7 7.5 8.5 50 72 0
Sediment Basin # 9
Phase 2 25 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
268.70 269.50 270.50
262.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 09
Colon
RISER INFLOW STORAGE STAGE Skimmer CAPACIT [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] 0.0 0 0.0 0.00 0.00 1.3 0 0.0 0.00 0.00 5.2 158 0.0 0.00 0.00 11.7 787 0.0 0.00 0.00 20.5 2,190 0.0 0.00 0.00 31.6 4,656 0.1 0.00 0.00 44.7 8,452 0.1 0.00 0.00 59.6 13,820 0.2 0.00 0.00 75.9 20,971 0.3 0.00 0.00 93.4 30,080 0.4 0.66 0.66 111.6 41,128 0.5 0.66 0.66 130.4 54,368 0.7 0.66 0.66 149.2 69,854 0.8 0.66 0.66 167.7 87,595 1.0 0.66 0.66 185.5 107,556 1.2 0.66 0.66 202.4 129,659 1.5 0.66 0.66 217.9 153,785 1.7 0.66 0.66 231.7 179,772 2.0 0.66 0.66 243.7 207,424 2.3 0.66 0.66 253.6 236,514 2.5 0.66 0.66 261.0 266,783 2.8 0.66 0.66 266.1 297,951 3.1 0.66 0.66 268.5 329,721 3.5 0.66 0.66 268.3 361,783 3.8 0.66 0.66 265.5 393,821 4.1 0.66 0.66 260.1 425,521 4.4 0.66 0.66 252.2 456,574 4.7 0.66 0.66 242.1 486,685 4.9 0.66 0.66 229.8 515,577 5.2 0.66 0.66 217.1 542,996 5.5 0.66 0.66 204.9 568,894 5.7 0.66 0.66 193.4 593,324 5.9 0.66 0.66 182.5 616,370 6.1 0.66 0.66 172.2 638,109 6.3 0.66 0.66 162.5 658,614 6.5 0.66 0.66 153.3 677,956 6.7 0.66 0.67 144.7 696,195 6.9 0.66 5.03 136.6 712,352 7.0 0.66 11.76 128.9 725,917 7.1 0.66 18.81 121.6 736,867 7.2 0.66 25.27 114.8 745,394 7.3 0.66 30.74 108.3 751,788 7.4 0.66 35.06 102.2 756,368 7.4 0.66 38.28
4.0E-03 2 92% 7.5 85.1 85.1 0.0
1.1 85,791
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 269.5 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
WEIR BARREL TOTAL FLOW CAPACITY OUTFL [cfs] [cfs] OW [cfs] 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 0.66 1.31 0.00 102.95 1.35 0.00 104.66 10.06 0.00 106.15 23.52 0.00 107.38 37.61 0.00 108.36 50.54 0.00 109.12 61.47 0.00 109.69 70.13 0.00 110.09 76.56
Bound Discharge [cfs] 0.00 0.00 124.27 141.19 153.17 162.64 170.54 177.34 183.31 188.65 193.40 197.74 201.72 205.38 208.77 211.89 214.79 217.47 219.96 222.27 224.40 226.38 228.22 229.91 231.46 232.89 234.20 235.39 236.47 237.45 238.33 239.13 239.86 240.52 241.12 241.68 242.19 242.63 243.00 243.29 243.51 243.67 243.79
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 56,487 N/A 64,179 N/A 69,622 N/A 73,926 N/A 77,516 N/A 80,607 N/A 83,325 N/A 85,750 100% 87,909 100% 89,882 100% 91,692 100% 93,357 100% 94,893 100% 96,314 100% 97,630 100% 98,850 100% 99,981 100% 101,030 100% 102,002 100% 102,902 100% 103,734 100% 104,503 100% 105,210 100% 105,860 100% 106,454 100% 106,996 100% 107,488 100% 107,932 100% 108,333 100% 108,696 100% 109,025 100% 109,326 100% 109,602 100% 109,854 100% 110,086 100% 110,287 99% 110,453 98% 110,584 97% 110,686 95% 110,761 94% 110,814 93% SB 25-yr HG (P2)
Computed By: PAW Date: 3/5/15 Checked By: EAW Date: 3/615 Sheet: __2__of __2__
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204 206
SB 09
96.4 91.0 85.9 81.0 76.5 72.2 68.1 64.3 60.7 57.2 54.0 51.0 48.1 45.4 42.8 40.4 38.1 36.0 34.0 32.1 30.3 28.5 26.9 25.4 24.0 22.6 21.4 20.2 19.0 18.0 16.9 16.0 15.1 14.2 13.4 12.7 12.0 11.3 10.7 10.1 9.5 9.0 8.5 8.0 7.5 7.1 6.7 6.3 6.0 5.6 5.3 5.0 4.7 4.5 4.2 4.0 3.8 3.5 3.3 3.2 3.0
759,445 761,300 762,179 762,287 761,796 760,844 759,543 757,981 756,230 754,345 752,370 750,340 748,280 746,212 744,152 742,112 740,101 738,126 736,192 734,303 732,462 730,669 728,927 727,235 725,594 724,002 722,460 720,967 719,521 718,122 716,768 715,458 714,192 712,967 711,783 710,637 709,530 708,460 707,425 706,424 705,457 704,522 703,617 702,743 701,897 701,079 700,288 699,523 698,783 698,067 697,375 696,704 696,056 695,428 694,820 694,232 693,662 693,110 692,576 692,058 691,557
7.4 7.5 7.5 7.5 7.5 7.5 7.4 7.4 7.4 7.4 7.4 7.4 7.3 7.3 7.3 7.3 7.3 7.3 7.2 7.2 7.2 7.2 7.2 7.2 7.1 7.1 7.1 7.1 7.1 7.1 7.1 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.8 6.8 6.8 6.8 6.8
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66
40.49 41.84 42.49 42.57 42.21 41.51 40.56 39.43 38.18 36.85 35.47 34.07 32.67 31.28 29.92 28.59 27.30 26.06 24.86 23.70 22.59 21.53 20.52 19.55 18.63 17.74 16.90 16.10 15.34 14.62 13.93 13.27 12.65 12.05 11.49 10.95 10.44 9.96 9.50 9.06 8.64 8.25 7.87 7.51 7.17 6.85 6.54 6.25 5.97 5.70 5.45 5.21 4.98 4.77 4.56 4.36 4.18 4.00 3.83 3.67 3.51
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
110.36 110.52 110.60 110.61 110.56 110.48 110.37 110.23 110.08 109.91 109.74 109.56 109.38 109.19 109.01 108.83 108.65 108.47 108.30 108.13 107.97 107.81 107.65 107.50 107.35 107.21 107.07 106.93 106.80 106.67 106.55 106.43 106.32 106.20 106.10 105.99 105.89 105.79 105.70 105.61 105.52 105.43 105.35 105.27 105.19 105.11 105.04 104.97 104.90 104.83 104.77 104.71 104.65 104.59 104.53 104.48 104.43 104.37 104.32 104.28 104.23
80.98 83.69 84.98 85.14 84.41 83.02 81.12 78.86 76.36 73.69 70.93 68.13 65.33 62.56 59.84 57.18 54.60 52.11 49.71 47.40 45.19 43.07 41.04 39.10 37.25 35.49 33.81 32.21 30.69 29.24 27.86 26.54 25.29 24.11 22.98 21.91 20.89 19.92 18.99 18.12 17.28 16.49 15.74 15.02 14.34 13.69 13.08 12.49 11.93 11.40 10.90 10.42 9.96 9.53 9.12 8.72 8.35 7.99 7.66 7.33 7.03
243.87 243.92 243.94 243.94 243.93 243.91 243.87 243.83 243.79 243.74 243.69 243.64 243.58 243.53 243.48 243.42 243.37 243.32 243.27 243.22 243.17 243.12 243.08 243.03 242.99 242.95 242.90 242.86 242.83 242.79 242.75 242.72 242.68 242.65 242.62 242.59 242.56 242.53 242.50 242.47 242.44 242.42 242.39 242.37 242.35 242.32 242.30 242.28 242.26 242.24 242.22 242.20 242.19 242.17 242.15 242.14 242.12 242.10 242.09 242.08 242.06
110,850 110,872 110,882 110,883 110,877 110,866 110,851 110,833 110,813 110,791 110,768 110,744 110,720 110,695 110,671 110,647 110,623 110,599 110,576 110,554 110,532 110,510 110,489 110,469 110,449 110,430 110,411 110,393 110,375 110,358 110,342 110,326 110,310 110,295 110,280 110,266 110,253 110,239 110,226 110,214 110,202 110,190 110,179 110,168 110,158 110,148 110,138 110,128 110,119 110,110 110,101 110,093 110,085 110,077 110,069 110,062 110,054 110,047 110,041 110,034 110,028
93% 93% 92% 92% 92% 93% 93% 93% 93% 94% 94% 94% 95% 95% 95% 96% 96% 96% 97% 97% 97% 97% 98% 98% 98% 98% 98% 98% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 25-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
250
5.0
OUTFLOW INFLOW [cfs]
200
STAGE [ft]
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #9 Colon Mine Phase 2 Hydrograph 25-Yr Storm
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Computed By: PAW Date: 3/5/15 Checked By: MDP
Date: 3/6/15
Sheet: _1__of __2_
Qp = Tp = dT = Max of
or
384.1 44.7 2 1.0%
cfs minutes minutes of increment to peak
Number of Riser/Barrel Assemblies Diameter of Barrel = Height of Riser above barrel = Height of Riser from bottom of barrel= Emergency Spillway = Total Height of Dam = Length of Emergency Spillway = Diameter of Riser = Permanent Pond Stage =
2 42 3.2 6.7 7.5 8.5 50 72 0
Sediment Basin # 9
Phase 2 100 - year Storm Event b= Ks = (in) (ft) (ft) elevation (ft) elevation (ft) elevation (ft) (in) (ft) elevation
268.70 269.50 270.50
262.0 Notes: 1. Length of emergency spillway is the bottom width of the emergency spillway. 2. Settling efficiency neglects permanent pond volume
TIME (min) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 SB 09
Colon
4.0E-03 2 73% 8.0 243.8 188.6 55.2
1.1 85,791
Settling Velocity of design particle (fps) Effective number of cells (2 is construction site #) Minimum Settling Efficiency ft Maximum Stage 270.0 msl elevation cfs Peak outflow cfs Peak Riser/Barrel outflow cfs peak weir flow
RISER WEIR BARREL TOTAL Bound INFLOW STORAGE STAGE Skimmer CAPACIT FLOW CAPACITY OUTFLOW Discharge [cfs] [cu ft] [ft] Flow [cfs] Y [cfs] [cfs] [cfs] [cfs] [cfs] 0.0 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 1.9 0 0.0 0.00 0.00 0.00 0.00 0.00 0.00 7.5 228 0.0 0.00 0.00 0.00 0.00 0.00 127.93 16.8 1,133 0.0 0.00 0.00 0.00 0.00 0.00 145.35 29.6 3,154 0.0 0.00 0.00 0.00 0.00 0.00 157.68 45.6 6,705 0.1 0.00 0.00 0.00 0.00 0.00 167.42 64.4 12,171 0.2 0.00 0.00 0.00 0.00 0.00 175.55 85.8 19,900 0.3 0.00 0.00 0.00 0.00 0.00 182.55 109.2 30,193 0.4 0.66 0.66 0.00 0.66 1.31 188.71 134.4 43,145 0.5 0.66 0.66 0.00 0.66 1.31 194.14 160.6 59,110 0.7 0.66 0.66 0.00 0.66 1.31 199.06 187.5 78,225 0.9 0.66 0.66 0.00 0.66 1.31 203.55 214.4 100,563 1.2 0.66 0.66 0.00 0.66 1.31 207.65 240.9 126,135 1.4 0.66 0.66 0.00 0.66 1.31 211.43 266.5 154,890 1.7 0.66 0.66 0.00 0.66 1.31 214.91 290.6 186,710 2.0 0.66 0.66 0.00 0.66 1.31 218.12 312.7 221,419 2.4 0.66 0.66 0.00 0.66 1.31 221.10 332.4 258,784 2.8 0.66 0.66 0.00 0.66 1.31 223.86 349.4 298,519 3.2 0.66 0.66 0.00 0.66 1.31 226.42 363.3 340,291 3.6 0.66 0.66 0.00 0.66 1.31 228.79 373.8 383,728 4.0 0.66 0.66 0.00 0.66 1.31 230.98 380.7 428,423 4.4 0.66 0.66 0.00 0.66 1.31 233.02 383.8 473,946 4.8 0.66 0.66 0.00 0.66 1.31 234.90 383.2 519,850 5.3 0.66 0.66 0.00 0.66 1.31 236.63 378.8 565,680 5.7 0.66 0.66 0.00 0.66 1.31 238.22 370.8 610,984 6.1 0.66 0.66 0.00 0.66 1.31 239.69 359.2 655,318 6.5 0.66 0.66 0.00 0.66 1.31 241.03 344.2 698,260 6.9 0.66 5.77 0.00 104.85 11.55 242.25 326.7 738,184 7.3 0.66 26.09 0.00 108.48 52.19 243.32 308.3 771,132 7.5 0.66 49.26 1.59 111.37 100.11 244.17 290.8 796,112 7.8 0.66 69.80 21.41 113.51 161.02 244.79 274.4 811,692 7.9 0.66 83.76 39.82 114.82 207.33 245.16 258.9 819,740 8.0 0.66 91.29 50.70 115.49 233.27 245.36 244.3 822,814 8.0 0.66 94.22 55.08 115.75 243.52 245.43 230.4 822,903 8.0 0.66 94.30 55.21 115.76 243.81 245.43 217.4 821,299 8.0 0.66 92.77 52.91 115.62 238.44 245.39 205.1 818,776 8.0 0.66 90.37 49.35 115.41 230.10 245.33 193.5 815,779 7.9 0.66 87.56 45.23 115.16 220.35 245.26 182.6 812,561 7.9 0.66 84.56 40.95 114.90 210.07 245.18 172.3 809,263 7.9 0.66 81.53 36.71 114.62 199.76 245.11 162.5 805,963 7.9 0.66 78.53 32.62 114.34 189.68 245.03 153.3 802,705 7.8 0.66 75.61 28.74 114.07 179.95 244.95 144.7 799,511 7.8 0.66 72.78 25.10 113.80 170.65 244.87
Estimated Settling Surface Efficiency Area (sf) [%] N/A N/A 58,150 N/A 66,068 N/A 71,672 N/A 76,102 N/A 79,797 N/A 82,978 N/A 85,775 100% 88,245 100% 90,482 100% 92,521 100% 94,387 100% 96,103 100% 97,686 100% 99,148 100% 100,501 100% 101,755 100% 102,918 100% 103,995 100% 104,993 100% 105,917 100% 106,771 100% 107,559 100% 108,284 100% 108,949 100% 109,558 100% 110,112 100% 110,600 96% 110,985 90% 111,267 82% 111,438 77% 111,526 74% 111,559 73% 111,560 73% 111,543 73% 111,515 74% 111,483 75% 111,448 77% 111,412 78% 111,375 79% 111,340 80% 111,304 81% SB 100-yr HG (P2)
Computed By: PAW Date: 3/5/15 Checked By: MDP
Date: 3/6/15
Sheet: _2__of __2_
86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 194 196 198 200 202 204
SB 09
136.5 128.8 121.5 114.6 108.1 102.0 96.3 90.8 85.7 80.8 76.3 72.0 67.9 64.1 60.4 57.0 53.8 50.8 47.9 45.2 42.6 40.2 37.9 35.8 33.8 31.9 30.1 28.4 26.8 25.2 23.8 22.5 21.2 20.0 18.9 17.8 16.8 15.8 15.0 14.1 13.3 12.6 11.8 11.2 10.5 9.9 9.4 8.9 8.4 7.9 7.4 7.0 6.6 6.2 5.9 5.6 5.2 4.9 4.7 4.4
796,393 793,356 790,399 787,523 784,724 781,997 779,338 776,741 774,201 771,710 769,259 766,835 764,421 761,972 759,497 757,022 754,565 752,140 749,756 747,422 745,142 742,919 740,757 738,657 736,619 734,643 732,728 730,875 729,081 727,346 725,668 724,045 722,477 720,962 719,498 718,083 716,716 715,395 714,119 712,886 711,695 710,545 709,433 708,359 707,321 706,318 705,349 704,413 703,507 702,632 701,786 700,969 700,178 699,413 698,674 697,959 697,267 696,597 695,950 695,323
7.8 7.7 7.7 7.7 7.7 7.6 7.6 7.6 7.6 7.6 7.5 7.5 7.5 7.5 7.4 7.4 7.4 7.4 7.4 7.3 7.3 7.3 7.3 7.3 7.2 7.2 7.2 7.2 7.2 7.2 7.1 7.1 7.1 7.1 7.1 7.1 7.1 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9 6.9
0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66
70.05 67.42 64.90 62.48 60.14 57.90 55.74 53.66 51.65 49.71 47.81 45.97 44.15 42.34 40.53 38.74 37.00 35.31 33.67 32.09 30.57 29.11 27.72 26.39 25.12 23.91 22.75 21.65 20.61 19.61 18.67 17.77 16.91 16.10 15.33 14.60 13.90 13.24 12.61 12.02 11.45 10.91 10.40 9.91 9.45 9.01 8.60 8.20 7.82 7.47 7.13 6.80 6.50 6.20 5.93 5.66 5.41 5.17 4.95 4.73
21.71 18.56 15.66 13.00 10.58 8.38 6.41 4.66 3.14 1.86 0.84 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
113.54 113.28 113.03 112.78 112.54 112.31 112.08 111.86 111.64 111.42 111.21 111.00 110.79 110.58 110.36 110.15 109.93 109.72 109.51 109.30 109.10 108.90 108.71 108.52 108.34 108.16 107.99 107.83 107.66 107.51 107.36 107.21 107.07 106.93 106.80 106.67 106.55 106.43 106.31 106.20 106.09 105.98 105.88 105.78 105.69 105.60 105.51 105.42 105.34 105.26 105.18 105.10 105.03 104.96 104.89 104.82 104.76 104.70 104.64 104.58
161.80 153.41 145.46 137.95 130.87 124.19 117.90 111.99 106.45 101.27 96.46 92.08 88.31 84.67 81.05 77.49 74.00 70.61 67.34 64.18 61.14 58.23 55.44 52.78 50.24 47.81 45.51 43.31 41.22 39.23 37.34 35.54 33.83 32.20 30.66 29.20 27.80 26.48 25.22 24.03 22.90 21.82 20.80 19.83 18.90 18.02 17.19 16.40 15.65 14.93 14.25 13.61 12.99 12.41 11.85 11.32 10.82 10.35 9.89 9.46
244.79 244.72 244.65 244.58 244.51 244.44 244.37 244.31 244.24 244.18 244.12 244.06 244.00 243.93 243.87 243.81 243.75 243.68 243.62 243.56 243.50 243.44 243.39 243.33 243.28 243.23 243.18 243.13 243.08 243.03 242.99 242.95 242.90 242.86 242.82 242.79 242.75 242.71 242.68 242.65 242.61 242.58 242.55 242.52 242.50 242.47 242.44 242.42 242.39 242.37 242.34 242.32 242.30 242.28 242.26 242.24 242.22 242.20 242.18 242.17
111,270 111,236 111,203 111,171 111,139 111,108 111,078 111,049 111,020 110,992 110,963 110,936 110,908 110,879 110,851 110,822 110,793 110,765 110,737 110,710 110,683 110,656 110,631 110,606 110,582 110,558 110,535 110,513 110,491 110,470 110,450 110,430 110,411 110,393 110,375 110,358 110,341 110,325 110,309 110,294 110,279 110,265 110,251 110,238 110,225 110,213 110,201 110,189 110,178 110,167 110,156 110,146 110,136 110,127 110,117 110,108 110,100 110,091 110,083 110,075
82% 83% 84% 85% 86% 87% 88% 89% 90% 90% 91% 91% 92% 92% 93% 93% 94% 94% 95% 95% 95% 96% 96% 96% 97% 97% 97% 97% 98% 98% 98% 98% 98% 98% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 99% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
SB 100-yr HG (P2)
500
10.0
450
9.0
400
8.0
350
7.0
300
6.0
OUTFLOW 250
INFLOW [cfs]
5.0
STAGE [ft] 200
4.0
150
3.0
100
2.0
50
1.0
0
0.0
0
20
40
60
80
100
TIME (min)
120
140
160
180
Stage (feet)
FLOW (cfs)
Sediment Basin #9 Colon Mine Phase 2 Hydrograph 100-Yr Storm
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