In addition to state and federal Regulations, permit owners will have to ensure that their land disturbing activities comply with any additional county, city or community ordinances that are not covered under State Regulations or through the NPDES program. These ordinances vary from site to site and should be addressed in the preliminary site design.
Certain local municipalities have recently taken on the role of state and federal permitting authorities through the MS4 Program. This program allows for all levels of Regulations to be addressed under one.
For example, if a construction project were located within the boundaries of an MS4, the permit applicant would submit their proposal to the associated MS4 rather than SC DHEC to obtain their NPDES coverage.
Please contact your local government offices for specific details.
To find out if your project is located within an MS4 please use the map under the Where To Apply Link.
 | State RegulationsLearn more about the various State Regulations concerning Stormwater Management |
 | Federal RegulationsLearn more about the various Stormwater Rules and Notices presented by the EPA. |
 | MS4 ProgramLearn more about the various MS4 Stormwater Rules and Notices presented by the EPA. |