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City of Newport News
Back River and Warwick River Bacteria TMDL Action Plan
2024-2029 Permit Cycle
To restore water quality, bacteria discharges must be reduced by 85 percent in the Warwick
River, 92 percent in Skiffes Creek, and 53 percent in Deep Creek. The City of Newport News’
wasteload allocation is presented in Table 2 (in CFU). The management measures and program
enhancements in Sections 3 and 4 will enable the City to meet its WLA to the maximum extent
practicable, as required by the City’s MS4 permit.
Table 2. Warwick River, Skiffes Creek, and Deep Creek WLAs
Waste load
Total
Pollutant allocation
Name of Final TMDL TMDL Watershed Watershed
Causing assigned to City
Report Required
Impairment in colony-
Reduction*
forming units
(CFU)
4.24E+10
Fecal CFU/year
Skiffes Creek 92%
Coliform
(1.16E+08
CFU/day)
5.27 E+12
Fecal Bacteria Total CFU/year
Maximum Daily Load Deep Creek (Lower) Enterococci 53%
Development for (1.44 E+10
Warwick River: CFU/day)
Primary Contact
Recreational Use and Warwick River
Fecal Coliform
Shellfish Harvesting (Upper Tidal Portion)
Use 3.19E+11
Warwick River CFU/year
Fecal Coliform 85%
(Middle Tidal Portion) (8.74E+08
CFU/day)
Warwick River
Enterococci
(Lower Tidal Portion)
*Reductions divided by municipality are not provided in TMDL reportJump to an indexed page (17 of 17)