- Bulk Petroleum Storage Activities - Bill Corder (803) 898-4034
- Discharges from the Application of Pesticides - Byron Amick (803) 898-4236
- Hydrostatic Test Water Discharges from New & Used Oil and Gas Lines & Tanks - Brett Caswell (803) 898-4396
- Discharges Associated with Nonmetal Mineral Mining Facilities [Effective July 1, 2022]- Brett Caswell (803) 898-4396
- Land Application Associated with Nonmetal Mineral Mining [Effective November 1, 2017] - Brett Caswell (803) 898-4396
- Petroleum Contaminated Groundwater Discharges - Fatina Ann Washburn Clark (803) 898-3136
- Potable Water Treatment Plants [Effective August 1, 2022] - Kayse Jarman (803) 898-0076
- Domestic Wastewater Treatment Plant Dischargers - Drew Edwards (803) 898-1271
- Utility Water Discharges - Melanie Townley (803) 898-4223
- Vehicle Wash Waters - Lance Davis (803) 898-4012
- Discharges Associated with Hydroelectric Generating Facilities - Crystal Rippy (803) 898-3964