Varlik, Banu2024-12-312024-12-312024-11https://dc.statelibrary.sc.gov/handle/10827/58706§303(d) of the Clean Water Act (CWA) and EPA’s Water Quality Planning and Management Regulations require states to develop total maximum daily loads (TMDLs) for water bodies that are included on the §303(d) list of impaired waters. A TMDL is the maximum amount of pollutant a waterbody can assimilate while meeting water quality standards (WQS) for the pollutant of concern. All TMDLs include a waste load allocation (WLA) for any National Pollutant Discharge Elimination System (NPDES) permitted dischargers, a load allocation (LA) for all nonpoint sources, and an explicit and/or implicit margin of safety (MOS). This technical report describes the development of fecal coliform (FC) TMDLs for impaired shellfish monitoring stations 12B-55 and 12B-56 in Leadenwah Creek in Charleston County, South Carolina. These stations have been included in South Carolina’s combined 2020 and 2022 303(d) list of impaired waters for exceeding FC WQS for shellfish harvesting. South Carolina Department of Transportation (SCDOT) is a national pollutant discharge elimination system (NPDES) permitted transportation separate storm sewer (TS4), and Charleston County is an NPDES permitted Municipal Separate Storm Sewer (MS4) entity in this watershed, and both entities have been allocated a WLA.Records, documents, and information made available by the agencies of the South Carolina state government or its subdivisions are made accessible through the South Carolina State Library Depository and are protected under U.S. Copyright law (Title 17, U.S.C.) and South Carolina state law (Title 30 and 60, S.C.C.L.). Distribution rights are determined by the agency or author and users should contact the aforementioned for more information.Water--Pollution--Total maximum daily load--South CarolinaBacterial pollution of water--South CarolinaWater--Monitoring--South CarolinaWater--South Carolina--AnalysisWater quality--South CarolinaDocument