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, pesticides, oils, metals, salts, loose sediments, soaps from car washes, etc.

Effective June 1, 2021, the Town of Moncks Corner located in Berkeley County will begin implementation of the South Carolina Stormwater Management and Sediment Reduction Program for land disturbance activities. The Town of Moncks Corner has received delegation under S.C. Regulation 72-300 to develop, implement, and enforce a program that includes the plan review and approval/disapproval, site inspection, and enforcement components. In addition to the minimum standards and criteria of S.C.

Stormwater runoff from construction activities can have a significant impact on water quantity. As stormwater flows over a construction site, it can pick up pollutants like sediment, debris, and chemicals and transport these to a nearby storm sewer system or directly to a river, lake, or coastal waterways. Polluted stormwater runoff can harm or kill fish and other wildlife.

Updates coming soon.

SC BMP Handbook

A detailed description of most Best Management Practices and how to maintain them.

NPDES Stormwater Discharges from Construction Activities General Permit Re-issued

The Department has reissued the NPDES General Permit for Stormwater Discharges from Construction Activities (SCR100000) on January 29, 2021. Please find below a link to the permit and the response to public comments. The permit will become effective on March 1, 2021. 

Notice of Intent

Use to obtain NPDES coverage under SC's CGP for Stormwater Discharges from Large and Small Construction Activities.

Notice of Termination

Use to terminate NPDES coverage under SC's CGP for Stormwater Discharges from Large and Small Construction Activities.

Regulations

State Regulations

Learn more about the various State Regulations concerning Stormwater Management

What is Stormwater?

Stormwater runoff occurs when precipitation from rain or snowmelt flows over the ground. Impervious surfaces like driveways, sidewalks, and streets prevent stormwater from naturally soaking into the ground.

The Clean Water Act (CWA) is the cornerstone of surface water quality protection in the United States. The statute employs a variety of regulatory and nonregulatory tools to sharply reduce direct pollutant discharges into waterways, finance municipal wastewater treatment facilities, and manage polluted runoff.