Aiken County, SC Environmental Rules: Stormwater Management (2026)

6-21 makes it unlawful to throw, drain, run or otherwise discharge into any part of the county storm sewer system, including streets, highways and rights-of-way, any matter that causes or tends to cause pollution or blockage, and it separately bars introducing anything into the storm sewer system that is not composed entirely of stormwater. Limited exceptions cover things like water-line flushing, landscape irrigation, dechlorinated pool water and firefighting flows. The same article bans illicit physical connections to the county storm sewer system, including old connections made before the chapter existed, and lets the county suspend a property's storm-sewer access without notice during an emergency discharge.

6-7 and the construction and post-construction runoff controls in Article III, which require a stormwater management plan and, for sites of an acre or more, coverage under South Carolina's NPDES General Permit for Storm Water Discharges from Construction Activities before any land disturbance begins. 6-61 proceeds through a warning notice, then a notice of violation with a hold on the certificate of occupancy, then a citation, and finally revocation of the building permit if the owner still will not comply.