County Stormwater Regulations
Stormwater regulations vary significantly by county. These pages surface data from AUE Land's compliance checker database, covering MS4 permit status, permit thresholds, inspection schedules, penalty structures, and required BMPs for 31 counties in five states: South Carolina, Georgia, Florida, North Carolina, and Michigan.
Each county page includes a quick reference table, detailed regulatory sections, FAQs, and links to related counties. Data is verified monthly by our regulatory monitoring system. For a personalized compliance assessment, use the AI Compliance Checker.
South Carolina
SCDES 11 countiesBeaufort County
OCRM coastal overlay, Bluffton and Hilton Head
Berkeley County
Charleston metro co-permittee
Charleston County
Tidal flooding, sea level rise challenges
Colleton County
Rural coastal, ACE Basin
Dorchester County
Summerville growth corridor
Georgetown County
Hurricane/flood vulnerable, four-river system
Greenville County
Upstate, county civil penalties up to $7,500/day
Horry County
Myrtle Beach metro, rapid development
Jasper County
Near Bluffton/Hilton Head, growing
Lexington County
Lake Murray protections, pond inspections due July 1
Richland County
Columbia metro, separate county and city programs
Georgia
GA EPD 7 countiesBryan County
Richmond Hill, GSWCC certification required
Camden County
St. Marys, Kings Bay Naval Base
Chatham County
Savannah, largest GA coastal MS4
Glynn County
Brunswick, St. Simons Island
Liberty County
Fort Stewart, military housing
McIntosh County
Most rural GA coastal county, Sapelo Island
Richmond County
Augusta consolidated government, $6.40/ERU fee
Florida
FDEP + SJRWMD, SFWMD, SWFWMD 6 countiesDuval County
Jacksonville, dual-authority FDEP + SJRWMD
Marion County
Ocala, Silver and Rainbow springs, SJRWMD + SWFWMD
Nassau County
Fernandina Beach, Amelia Island
Orange County
Orlando, ERPs split between SJRWMD and SFWMD
St. Johns County
St. Augustine, rapid growth
Volusia County
Daytona Beach, springs and lagoon basin rules
North Carolina
NC DEQ 4 countiesNew Hanover County
Wilmington, CAMA county, $25K/day penalties
Brunswick County
Beach communities, CAMA county
Pender County
Topsail Beach, CAMA county
Mecklenburg County
Charlotte, joint city-county storm water utility
Michigan
EGLE 3 countiesState Penalty Comparison
Maximum daily penalties for stormwater violations vary significantly across the four states. These are statutory maximums. Actual penalties depend on violation severity, history, and cooperation.
| State | Regulatory Agency | Max Daily Penalty | Key Statute |
|---|---|---|---|
| South Carolina | SCDES | $10,000/day | SC Code 48-1-330 |
| Georgia | GA EPD | $50,000/day | O.C.G.A. 12-5-52 |
| Florida | FDEP | $15,000/day | F.S. 403.141 |
| North Carolina | NC DEQ | $25,000/day | G.S. 143-215.6A |
Michigan is not in this table. For Michigan penalties, see the Michigan stormwater regulations hub.
Not sure what applies to your property?
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