2026 NPDES Permit SCS230001 Greenville MS4, - 2026 Greenville MS4 Permit SCS230001 - 2026 Greenville Fact Sheet - 2026 Formal Response to Comments, Municipal Separate Storm Sewer Stormwater (MS4) , Stormwaters, such as rain and snow melt, which run over impervious surfaces in urbanized areas – roadways, sidewalks, parking lots, roof tops, etc. – are often unintentionally, or unknowingly, mixed with potential sources of pollutants. Waters travel quickly over these impervious areas and can carry large quantities of materials. Such pollutants can include, but are not limited to, fertilizers,…, What is a MS4? , A Municipal separate storm sewer system (MS4) is a system of conveyances that include, but are not limited to, catch basins, curbs, gutters, ditches, man-made channels, pipes, tunnels, and/or storm drains that discharge into Waters of the State . For these conveyances or system of conveyances to be recognized as an MS4, a state, city, town, village, or other public entity must own them. These…, Discover if you are within a regulated MS4 , South Carolina MS4 Mapping Tool , MS4 and sMS4 Expectations , Large and Medium MS4s must prepare and submit a permit application to address each of the following elements: Structural control maintenance Areas of significant development or redevelopment Roadway runoff management Flood control related to water quality issues Municipal owned operations such as landfills, wastewater treatment plants, etc. Hazardous waste treatment, storage or disposal sites,…, Stormwater Program Area , Stormwater Site Types , Associated ePermitting Forms , Public Sector Construction Projects SCR10 , , (Construction Projects Within or Outside of an MS4 Area) , , , Notice of Intent (NOI) for new construction projects which disturb greater than one acre D - 2617 NOI for new construction projects which disturb less than one acre For sites within one of the eight coastal counties (Beaufort, Berkely, Charleston, Colleton, Dorchester, Georgetown, Horry, Jasper), Not for individual lots in residential subdivisions, D - 0451 NOI for new construction projects which disturb less than one acre For sites that are, NOT, within one of the eight coastal counties (Beaufort, Berkely, Charleston, Colleton, Dorchester, Georgetown, Horry, Jasper), Not for individual lots in residential subdivisions, D - 2628 Any stormwater construction project for which the permit ownership is changing to a new Permittee D - 2617 & D - 0434 NOI coverage for individual lots within a residential subdivision which has already been permitted under one master plan D - 0432 Major Modification of an existing permit for land disturbance (any acreage) D - 2617 & D - 0435 Notification of final site…, Newly Designated Small MS4 (sMS4) , NOI for any Newly Designated sMS4 to apply for coverage of their MS4 area under the sMS4 General Permit NOI Small MS4 General Permit - New Permittee
Ambient Air Monitoring Network, SCDES operates air monitoring stations throughout South Carolina to measure the concentrations of pollutants in outdoor (ambient) air that are considered harmful to public health and the environment. The EPA sets national ambient air standards for each type of pollutant and sets minimum requirements for both the number and distribution of monitors among metropolitan statistical areas. The EPA…, Contact, SCDES Air Regulations & Data Analysis Section , Sophie Grimsley ,, Air Regulations & Data Analysis Manager
2026 Management Information, Lake Murray, The proposed herbicide treatment on Lake Murray has been canceled. SCDES will not be applying any herbicide to Lake Murray this year. Over the winter, SCDES and Dominion Lake Management will be working together to develop a management plan that can provide relief from problematic vegetation while accommodating existing drinking water intakes. Management strategies currently in use in Lake Murray…, 2025 Management Information, Summary of Herbicide Treatments 2025, Waterbody, Date, Target Plants, Acres Treated, Control Agent, January Totals, , 0.00, , February Totals, , 0.00, , March Totals, , 0.00, , April Totals, , 0.00, Back River Reservoir 5/20 Water primrose 60.00 Renovate3, Flumi 51 Goose Creek Reservoir 5/22 Water primrose 87.00 Komeen, Tribune, May Totals, , 147.00, Prestwood Lake 6/10 Spatterdock 25.00 ProcellaCOR, SunWet Cooper River 6/11 Hydrilla 30.00 ProcellaCOR, Komeen Cooper River 6/11 Water primrose 59.00 Triclopyr 3, Flumigard, SunWet Goose Creek Reservoir 6/11 Water primrose 5.00 ProcellaCOR, Flumigard, SunWet, June Totals, , 119.00, Waccamaw River 7/23 Alligatorweed 126.00 Triclopyr 3, Flumigard, MSO Pages Millpond 7/24 Water hyacinth 24.00 Triclopyr 3, Flumigard, MSO Pages Millpond 7/24 Cattails 2.00 Habitat, Aquaneat, MSO, July Totals, , 152.00, Black River 8/2 Water primrose 142.00 Triclopyr 3, Pond Klear, SunWet Lake Murray 8/5 Pondweed 51.00 Galleon, Aquathol K Lake Murray 8/5 Hydrilla 13.00 ProcellaCOR Lake Murray 8/6 Pondweed 38.00 Galleon, Aquathol K Cooper River 8/13 Hydrilla 28.00 Komeeen, Tribune Cooper River 8/14 Water primrose 58.00 Triclopyr 3, Pond Klear, SunWet Back River Reservoir 8/18 Hydrilla 16.00 Komeen, Tribune…, August Totals, , 601.00, Lake Wateree 9/8 Lyngbya 35.75 Captain XTR Black River 9/9 Alligatorweed 16.00 Triclopyr 3, Pond Klear, SunWet Pages Millpond 9/10 Water hyacinth 24.00 Triclopyr 3, Pond Klear, SunWet Pages Millpond 9/10 Cattails 2.00 Habitat, Aquaneat, SunWet Back River Reservoir 9/17 Water primrose 40.00 Triclopyr 3, Pond Klear, SunWet Hatchery WMA 9/18 Hydrilla 8.00 ProcellaCOR, Komeen Hatchery WMA 9/18…, September Totals, , 131.75, Broad River 10/7 Hydrilla 13.50 ProcellaCOR Goose Creek Reservoir 10/7 Water primrose 35.00 Garlon 3A, PondKlear, Sunwet Goose Creek Reservoir 10/7 Water lettuce 2.00 PondKlear, Sunwet Goose Creek Reservoir 10/7 Spatterdock 15.00 ProcellaCOR, PondKlear Goose Creek Reservoir 10/7 Cutgrass 1.00 Clearcast, Aquaneat, Sunwet Waccamaw River 10/8 Water hyacinth 23.00 Triclopyr 3, Pond Klear, SunWet…, October Totals, , 110.25, Back River Reservoir 11/3 Water hyacinth 15.00 Renovate 3, PondKlear, SunWet Back River Reservoir 11/3 Water hyacinth 21.00 Triclopyr 3, PondKlear, SunWet Back River Reservoir 11/3 Water hyacinth 5.00 Garlon 3A, Sunwet Back River Reservoir 11/3 Water hyacinth 1.00 Triclopyr 3, SunWet Back River Reservoir 11/4 Hydrilla 15.50 Komeen, Tribune Back River Reservoir 11/5 Water hyacinth 130.00 Garlon…, November Totals, , 264.58, Cooper River 12/3 Giant salvinia 24.00 Tribune, Sunwet Cooper River 12/17 Giant salvinia 0.50 Tribune, Sunwet, December Totals, , 24.50, , Triploid Grass Carp Stocking 2025 Spring, Water Body, Location, Stock Date, Target Plants, # of Fish, Lake Bowen Spartanburg County 7/23 Submersed Misc 60 Reservoir #1 Spartanburg County 7/23 Submersed Misc 20 Lake Blalock Spartanburg County 7/23 Chara 20 Lake Murray Richland/Lexington County 7/23 Hydrilla / Pondweed 5000 Lake Keowee Oconee County 7/23 Hydrilla 380 Lake Keowee Intake Canal Oconee County 7/23 Hydrilla 10 Broadway Lake Anderson County 7/23 Hydrilla 75 Lake York, King's Mtn. SP York…, Totals,
, SCDES has developed trainings to help Asbestos users with navigating the ePermitting system. Please refer to the videos for assistance. If you need further assistance, please contact Jennifer Boryk at , Jenn.Boryk@des.sc.gov, or, 803-898-2634, ., Videos, All videos can be seen on our, YouTube ePermitting playlist, ., Abatement Personnel License Individual - New (English), Abatement Personnel License Individual - New (Espanol), , Temporary Storage Containment Area License Application, Abatement License Application Contractor - New, PDFs, Asbestos - Abatement Personnel License Individual - New (English) Asbestos - Abatement Personnel License Individual - New (English) Asbestos - Abatement Personnel License Individual - New (Spanish) Asbestos - Abatement Personnel License Individual - New (Spanish) Asbestos - Temporary Storage Containment Area License Application - New & Renewal Asbestos - Temporary Storage Containment Area…, Contact ePermitting, Share a general comment, question or concern by completing an ePermitting Help Request .