Total Maximum Daily Load for Fecal Coliform for Salem Creek and ...
Total Maximum Daily Load for Fecal Coliform for Salem Creek and Turbidity for Grants Creek in North Carolina
Final Report EPA Approval Date: September 25, 2006
Yadkin-Pee Dee River Basin
Prepared by: NC Department of Environmental and Natural Resources Division of Water Quality Water Quality Section – Planning Branch 1617 Mail Service Center Raleigh, NC 27699-1617 (919) 733-5083
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TMDL Summary Sheet 1. 303(d) List Information State: Counties: Basin: Hydrologic Unit Code (HUC):
Waterbody Name Salem Creek (Middle Fork Muddy Creek)
Description
North Carolina Rowan, Forsyth Yadkin- Pee Dee River Basin 03040101170 (Salem Creek) 03040103010 (Grants Creek)
Assessment Unit (AU): 12-94-12-(4)
Class
Subbasin
Impairment
Miles
From C 03-07-04 Fecal 12.0 WinstonColiform Salem Water Supply Dam (Salem Lake) to Muddy Creek Grants Creek From SR 12-110b C 03-07-04 Turbidity 1.2** 1910 to Yadkin River ** The impairment length of Grants Creek is incorrectly listed on the 303(d) list as 1.2 miles. The actual impairment length is 4.2 miles. This will be corrected in the next version of the 303(d) list.
Constituents of Concern:
Fecal Coliform Bacteria (Salem Creek) and Turbidity (Grants Creek)
Reason for Listing:
Standard Violations
Applicable Water Quality Standards: For Class C waters: • Turbidity: not to exceed 50 NTU •
Fecal coliform shall not exceed a geometric mean of 200/100 ml (membrane filter count) based upon at least five consecutive samples examined during any 30 day period, nor exceed 400/100 ml in more than 20 percent of the samples examined during such period.
i
2. TMDL Development Development Tools:
Load duration curves based on cumulative frequency distribution of flow conditions in the watershed. Allowable loads are average loads over the recurrence interval between the 95th and 10th percent flow record (excludes extreme drought (>95th percentile) and floods (
Final Report EPA Approval Date: September 25, 2006
Yadkin-Pee Dee River Basin
Prepared by: NC Department of Environmental and Natural Resources Division of Water Quality Water Quality Section – Planning Branch 1617 Mail Service Center Raleigh, NC 27699-1617 (919) 733-5083
This page intentionally left blank.
TMDL Summary Sheet 1. 303(d) List Information State: Counties: Basin: Hydrologic Unit Code (HUC):
Waterbody Name Salem Creek (Middle Fork Muddy Creek)
Description
North Carolina Rowan, Forsyth Yadkin- Pee Dee River Basin 03040101170 (Salem Creek) 03040103010 (Grants Creek)
Assessment Unit (AU): 12-94-12-(4)
Class
Subbasin
Impairment
Miles
From C 03-07-04 Fecal 12.0 WinstonColiform Salem Water Supply Dam (Salem Lake) to Muddy Creek Grants Creek From SR 12-110b C 03-07-04 Turbidity 1.2** 1910 to Yadkin River ** The impairment length of Grants Creek is incorrectly listed on the 303(d) list as 1.2 miles. The actual impairment length is 4.2 miles. This will be corrected in the next version of the 303(d) list.
Constituents of Concern:
Fecal Coliform Bacteria (Salem Creek) and Turbidity (Grants Creek)
Reason for Listing:
Standard Violations
Applicable Water Quality Standards: For Class C waters: • Turbidity: not to exceed 50 NTU •
Fecal coliform shall not exceed a geometric mean of 200/100 ml (membrane filter count) based upon at least five consecutive samples examined during any 30 day period, nor exceed 400/100 ml in more than 20 percent of the samples examined during such period.
i
2. TMDL Development Development Tools:
Load duration curves based on cumulative frequency distribution of flow conditions in the watershed. Allowable loads are average loads over the recurrence interval between the 95th and 10th percent flow record (excludes extreme drought (>95th percentile) and floods (
