Water Department Annual Report 2008
Water Department Overview The Water Department is responsible for providing a safe and reliable supply of water for the citizens of the Town of Normal. In addition, adequate pressure and volume must be maintained for fire protection purposes. The Department has three main divisions, Treatment, Distribution, and Administration/Billing. The Treatment Division’s responsibilities include the operation and maintenance of fifteen wells, a lime softening treatment plant, three booster pump stations, four elevated tanks, and one ground storage reservoir. Activities of this division include the operation of the Water Treatment Plant on a 24 hour per day, 7 day per week basis as well as the repair and maintenance of all wells, treatment plant equipment, elevated tanks, booster pump stations, and telemetry equipment. Also included in the Treatment Division is the Laboratory, which performs not only the sampling and testing required by the Illinois Environmental Protection Agency, but also provides for the quality control and quality assurance testing. During 2008 nearly 1.6 billion gallons of water was pumped to the citizens of Normal. The Distribution Division is charged with operating and maintaining more than 194.5 miles of water mains, reading and maintaining more than 16,176 services and meters, and providing customer service. These activities include the maintenance and repair of water mains, valves and hydrants on a 24/7 basis, as well as the installation and repair of services and curb stops, installation and repair of all water meters, meter reading, hydrant flushing, various customer service activities, and the supervision of the installation of new water mains. New meter installations for 2008 totaled 332. A total of 14,348 work orders and service requests were completed during 2008. In addition, a total of 6,038 JULIE requests were received, and JULIE locates totaled 2,371. The Administrative/Billing Division performs the billing and collection functions for water, sewer, garbage, bulky waste collection, storm water and sewage treatment (performed by the Bloomington/Normal Water Reclamation District) and provides support services for the Water Department. Over 105,393 bills were prepared and mailed, and 4,017 finals and special readings were processed in 2008.
The Water Department is regulated by the Illinois Environmental Protection Agency (IEPA) and the United States Environmental Protection Agency (USEPA). The Water Department will continue to face new and changing water quality standards proposed by regulators. Regulations covering issues such as disinfectant levels, additional contaminant monitoring, and source protection will be taking effect soon. The Water Department provides service with a skilled and dedicated staff of 33 full time and three part time/seasonal employees who are committed to providing a continuous supply of the highest quality drinking water possible to the citizens of the Town of Normal.
The Year 2008 In Review The Water Department continued its growth trend in 2008 in terms of area served. Water use trends decreased, with a decrease in consumption of 5.6 percent for the past year. Figure 1 illustrates the monthly water use for 2008 and Figure 2 illustrates the comparisons to previous years.
2008 PUMPING REPORT Million Gallons Pumped
160 150 140 130 120 110 100 Jan
Feb
Mar
Apr
May June July
Raw Water Pumped
Aug
Sept
Dist Water Pumped
Figure 1
Oct
Nov
Dec
RAW AND FINISHED WATER PUMPED Average Day 1990-2008
Million Gallons Per Day
6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 Year Raw Water
Finished Water
Raw Water Trend
Figure 2
The highest recorded daily pumpage in 2008 was 6.78 million gallons which is less than the previous maximum day set in 2003 and 2005. On-campus water use by Illinois State University decreased by 14.4 percent in 2008. Figures 3 and 4 show the water consumption by Illinois State University. ILLINOIS STATE UNIVERSITY 2008 On Campus Use 25.0
Million Gallons
20.0
15.0
10.0
5.0
0.0 Jan
Feb
Mar
Apr
May
June
July
Month Figure 3
Aug
Sept
Oct
Nov
Dec
ILLINOIS STATE UNIVERSITY Average Daily Use - On Campus
Million Gallons Per Day
0.70 0.65 0.60 0.55 0.50 0.45 0.40
ISU Average Daily Use
Trend
Figure 4
The Water Treatment Plant has a design rate of 9.6 million gallons per day. The source of supply for the short term is capable of producing 11.5 million gallons per day. Treatment and well capacities are sufficient for our average daily water use for more than 20 years according to statistical analysis; however, growth projections can significantly impact the analysis. The growth trends and projections in water consumption are further illustrated in Figure 5. RAW WATER AVERAGE DAY
Million Gallons Per Day
Projected
7.00 6.50 6.00 5.50 5.00 4.50 4.00 3.50 3.00 2.50 2.00
Year Average Day
Trend
Figure 5
Of greater concern are the projected maximum day figures which show that by 2030 maximum day demands could exceed our current well and treatment plant production abilities. Once again, these projections can be significantly impacted by growth rate forecasts and the addition of any new industrial users requiring significant amounts of water. Current growth in consumption projections have been greatly influenced by two previous years of decreasing consumption primarily due to climatic conditions. Higher growth rates coupled with drier climactic conditions could cause demand to exceed supply much sooner than projected. The Town of Normal continues to be involved in discussions regarding a regional http://www.expandandexcel.org/water supply, which would supply ground water to several local governmental agencies. Figure 6 illustrates maximum day projections. RAW WATER HIGH DAY Actual / Projected 10.00
Million Gallons Per Day
9.00
Year in which high day is projected to reach short term yield of existing well supplies and/or treatment plant capacity.
8.00 7.00 6.00 5.00 Projection using exponential growth function based upon last 15 years
Exponential Fit based upon last 20 years
4.00 3.00
Year Actual
Projection
Exponential Fit
Figure 6
Well rehabilitation efforts continued in 2008 with work on Well #14, Well #7 and Well #10. Further rehabilitation on other wells will continue annually in an effort to maintain or improve current production levels. This year, 332 new accounts were added and 1,506 meters were replaced. Figure 7 illustrates the comparison of this year’s meter activity with previous years, as well as the growth in the number of metered accounts since 1985.
METERED ACCOUNTS 600
17 16 Metered Accounts (Thousands)
400
14 13
300 12 11
200
Meter Installations
500 15
10 100 9 8
0
Total Meters
New Meter Installations
Figure 7
Figure 8 illustrates the relative number of metered accounts by type and figure 9 illustrates the number of gallons sold by type. NUMBER OF ACCOUNTS BY TYPE Commercial, Govt., 1 .8%
Commercial, Manufa cturing, 0.1%
Commercial, Owner 2.3%
Irrigation, 2.1% Commercial, Rental, 1.9%
Residence, Rental, 2 8.5%
Residence, Owner, 6 3%
Figure 8
CONSUMPTION BY TYPE Irrigation 2.9%
Commercial Govt. 18.0%
Residence Rental 26.9%
Commercial Manufacturing 0.1%
Commercial Owner Occupied 10.5%
Commercial Rental 2.3%
Residence Govt Institution 0.0% Residence Owner Occupied 39.2%
Figure 9
Figure 10 depicts the number of meters by size for the period of 1988 to 2008. Number of Meters By Size 350
1988 to 2008
16000 14000
300
12000
Meters 3/4" and Larger
250 10000
5/8 " Meters
200
8000
150
6000
100 4000
50
2000
0
0 198819891990199119921993199419951996199719981999200020012002200320042005200620072008 3/4" 1"
Figure 10
A total of 13,978 feet (2.6 miles) of new water main was added to the distribution system in 2008. Figure 11 illustrates the total number of miles of water main in the system over the last 20 years and Figure 12 illustrates the total number of feet added each year over the last 20 years. MILES OF WATER MAIN 1987 to Present
200 180
Miles
160 140 120 100 80
Figure 11
WATER MAIN INSTALLED 70
THOUSANDS OF FEET
60 50 40 30 20 10 0
Figure 12
Revenues and expenses for the department have increased from about 2.3 million dollars in 1990 to more than 6.9 million dollars in 2008. Figures for 03/04 include approximately
3.5 million dollars in expenses funded by a loan from the IEPA Revolving Loan Fund used to finance the Water Main Replacement and Rehabilitation Project. The current annual cost of operations (excluding capital improvements) has reached approximately $3,471 per million gallons of raw water processed. This compares to predicted revenue of $4,209 per million gallons based upon current water rates. The graph indicating Revenue versus Expense (Figure 13) shows expenses exceeding revenues in 01-02 by nearly one million dollars and a decline in revenues due to the completion of large capital projects undertaken in 2000 and 2001. Information for 03/04 includes the Water Main Replacement and Rehabilitation Project activities. Information for the 07-08 year includes large capital improvement expenditures associated with the Uptown Project and the associated bond proceeds. REVENUE VS EXPENSES By Fiscal Year
14 12
Millions
10 8 6 4 2 0
Revenue
Expenses
Figure 13
Figures 14 and 15 illustrate chemical costs and production costs respectively. CHEMICAL COSTS $45
160
$40
150
$35
140
$30
130
$25
120
$20
110
$15 $10
100
$5
90
$0
80 JAN
FEB
MAR
APR
MAY
JUN
JUL
Chemical Cost
AUG
SEP
OCT
Million Gallons Treated
Figure 14
NOV
DEC
Million Gallons Treated
Chemical Costs (Thousands)
2008
PRODUCTION COSTS 2008 Chemical and Electrical Costs per Million Gallons Produced
$600.00
$500.00
$400.00
$300.00
$200.00
$100.00
$0.00 JAN
FEB
MAR
APR
MAY
JUN
JUL
Electrical Costs
AUG
SEP
OCT
NOV
DEC
Chemical Costs
Figure 15
Figure 16 illustrates the chemical and electrical costs per million gallons for the last 10 years. Production Costs Chemical and Electrical Costs per Million Gallons Produced
1998 to 2008 $280.00 $260.00 $240.00 $220.00 $200.00 $180.00 $160.00 $140.00 $120.00 1998
1999
2000 Chemical
2001
2002
2003 Electrical
Figure 16
2004
2005
2006
2007
2008
DISTRIBUTION REPORT
ROUTINE WORK ORDERS
IMMEDIATE WORK ORDERS YTD
Check for leaks Check low usage Check reads Curb box repair Excavation site restore Final reads Flow test service line Frozen meter Initial read Initial read and turn on Install replacement meter Install replacement meter & MTU Leaking meter – replace? Meter stuck? Miscellaneous Meter install and get CBL Noisy Meter - replace? Notify Cust. Of High Use Post notice for non-pay Pressure test at meter Put meter back in - mtr ok Remove meter and turn off Replace/Change MTU Replace register Reprogram MTU Test meter Verify after final and read Verify still off Category Total
785 26 60 90 98 3235 0 14 3178 6 1490 27 11 344 129 247 0 35 29 19 0 22 285 36 735 0 55 229 11,185
HYDRANTS Hydrants Exercised Hydrants flushed Hydrants flow tested Hydrants repaired Hydrants painted Hydrants replaced
71 1,959 17 34 231 8
YTD
Acct # doesn't come up Check/Repair MTU Check for service leak Check for hydrant leak Dashes in rdg/repair Fix meter error Fix wiring error Gate frozen Install MTU Lock frozen Misc ARB repair
0 20 3 0 42 107 180 0 1702 0 0
Move ARB/MTU Possible Main Break Reprogram MTU's Re-read mtr no access Re-read mtr mean dog Re-read /blocked Re-read/can't find Re-read/fence Re-read/locked Re-read/need key Re-read/obstacle Read/key doesn't work Repair cable Repair /Replace lid Replace ARB box Shut off at cust. request Shut off – Legal Shut off/Non-Pay Shut Off Need New Name Turn on paid Turn H2O on @ Cust Req Water quality complaint Category Total
22 1 0 0 1 0 0 0 2 0 0 0 1 0 0 45 6 811 1 668 9 7 3,628
LOCATES Locate all water related
2,371
Locate curb box Category Total
0 2,371
METERS REPLACED 5/8" 5/8"x3/4" 3/4" 1" 1 1/2" 2" 3" 4" 6" 8" Larger Category Total
1,046 350 27 52 28 2 1 0 0 0 0 1,506
SIDE TAPS 4" 6" 8" 10" 12" Larger
4 1 7 -
Category Total
METERS IN SERVICE 5/8" 5/8" x 3/4"
10,085 5,102
3/4" 1" 1 1/2" 2" 3" 4" 6" 8" Larger Category Total
215 292 231 137 50 41 21 2 16,176
HYDRANTS IN SERVICE VALVES IN SERVICE HYDRANT GPS VALVE GPS CURB BOX GPS
2,098 2,945 892 1,597 620
TOTAL LINEAL FEET IN SYSTEM 4" 54,535 6" 393,410 8" 281,167 10" 19,219 12" 150,545 16" 29,356 Larger 99,088 1,027,320 Category Total
12
HYDRA STOPS
SERVICE TAPS Added
4" 6" 8" 10" 12" Category Total
1 1 2 4
VALVE MAINTENANCE/REPAIR Valves Exercised Valves Repaired Valves Replaced Valves Found
Remove Lead Service
138 6 6 2
20
3/4" 1" 1 1/2" 2" Category Total
21 1 1 23
MAIN BREAKS 4" 6" 8" 10" 12" Larger Total
5 19 1 0 6 0 32
Number of Bills Printed Total Active Services
NORMAL WATER DEPARTMENT OPERATIONS REPORT
109,410 17,721
THIS YEAR
ONE YEAR AGO 1689.998
FIVE YEARS AGO 1672.443
4.366 6.788 2.834
4.630 6.930 2.945
4.582 7.090 2.920
1588.539
1674.467
1639.488
4.340 6.820 2.854 7.080
4.588 6.840 3.007 9.120
4.492 7.260 2.789 10.110
TOTAL PLANT USE
30.761
32.923
37.097
Filter Wash Surface Wash Plant Service
16.485 0.593 13.682
18.149 0.675 14.099
18.885 0.803 17.410
TOTAL WATER TREATED/MG
1593.754
Average Water Treated Daily Maximum Water Treated Daily Minimum Water Treated Daily
TOTAL DISTRIBUTION WATER PUMPED Average Water Pumped Daily Maximum Water Pumped Daily Minimum Water Pumped Daily Max. hour on Max. Day
TOTAL COMBINED WELL OUTPUT FOR YEAR - 2008
TOTAL METERED SALES I.S.U. USEAGE
1,582,424,220
GALLONS BILLED 1,359,806,880
AMOUNT BILLED $5,771,738.20
184,882,280
$726,465.53
WEATHER TEMPERATURE:
PRECIPITION
Average (degreesF)
54
Days
127
High (degrees F)
94
High (in.)
4.39
Low (degrees F)
1
Total (in.)
48.89
NORMAL WATER DEPARTMENT OPERATIONS REPORT COST THIS YEAR
UNITS
COST/MG
ELECTRICAL (KWH) Pumping & Power
2,021,800
$201,659.02
$126.53
45,165
$5,058.50
$3.17
Wells
1,841,503
$183,070.52
$114.87
Total
3,911,468
$389,788.04
$244.57
Plant
12,796
$12,089.77
$7.59
Other
10,463
$8,419.73
$5.28
Total
23,259
$20,509.50
$12.87
1,205
$2,252.10
$1.41
Lime
4,975,232
$312,500.65
$196.08
Alum
163,153
$10,887.18
$6.83
Chlorine
142,443
$32,750.88
$20.55
Lighting
NATURAL GAS (cu. ft.)
PROPANE (gals) West Wells CHEMICAL USE AND COST
Fluoride
64,878
$18,293.14
$11.48
518,767
$27,333.57
$17.15
Aquadene SK-7691
10,409
$5,342.24
$3.35
Aquadene SK-7661
32,454
$16,638.01
$10.44
PHI-3125
15,791
$16,541.58
$10.38
5,923,127
$440,287.25
$276.26
CO2
TOTAL CHEMICAL Electrical (KWH) Cost Per MG Treated in 2008
$244.57
Natural Gas (Cu. Ft.) Cost Per MG Treated in 2008
$12.87
Propane (gals) Cost Per MG Treated in 2008
$1.41
Chemical Use and Cost Per MG Treated in 2008
$276.26 2008
2007
2006
Average Hardness of Raw Water
408
466
406
Average Hardness of Tap Water
102
104
114
Average Alkalinity of Raw Water
429
436
416
Average Alkalinity of Tap Water
90
82
80
Average pH of Tap Water
9.64
9.62
9.59
Softening Efficiency
76%
78%
77%
Normal Water Department 2008 Accomplishments 6 Added 332 new water accounts and processed 109,410 utility bills. 6 Received 6,038 JULIE locate requests and performed 2,371 locates. 6 Supervised the installation of over 13,934 feet of new water main on the following projects: Trails on Sunset Lake, Heartland Village Phase II, Kerrick Road Phase I, Heartland Community College Phase II, Starplex Cinemas, Revised Second Addition to the Vineyards, and Sugar Creek Boulevard.
6 Removed nearly 2,850 dry tons of lime softening sludge from the storage lagoon. 6 Completed 14,348 work orders and service requests including 4,017 final readings.
6 Continued the installation of a Fixed Network Radio Read system converting over 15870 meters to radio read many of which included meter replacement
6 Repaired 32 water main breaks. 6 Performed a Treatment Plant Tracer Study.
6 Completed a pilot study for filter improvements.
6 Completed the installation of
a
SolarBee tank mixing device in the West Reservoir.
6 Completed pilot testing ammonia removal strategies in conjunction with the USEPA.
6 Collected GPS data on hydrants and valves.
6 Cleaned and inspected Elevated Tank #1 and repaired the cathodic protection system on Tank #4.
6
Replaced pump control valves in the North Booster Station.
6
Replaced 2,360 feet of water main on Adelaide from College Ave. to Gregory St.
6
Replaced 700’ of 12 inch water main on Main Street.
6
Rehabilitated Well #13, Well #7, Well #8, and Well #10.
2009 Goals 6 Continue nitrification studies. 6 Collect GPS data for curb boxes. 6 Continue the well rehabilitation program.
6 Continue the conversion of existing meters to radio reading.
6 Continue the large meter testing and repair program.
6 Complete Solar powered tank mixing installation.
6 Complete filter rehabilitation design including air scour backwash systems. 6 Complete water main relocations at Raab Road and School Street.