EPA EXPORT · 13 SEP 2026FEDERAL COMPLIANCE RECORDS · NOT A HOME WATER TEST
TAP WATERLEDGERPublic system compliance records

COUNTY WATER-SYSTEM LEDGER

Charleston, South Carolina

Compare active community water systems serving this county in EPA's public export. Systems can serve multiple places, so population totals may overlap.

Systems8active CWS · pop. 2,500+
Population served474,140reported total; may overlap
Current violation flag0.0%0 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving Charleston

Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.

Water systemPopulation servedPrimary sourceCurrent export status
Charleston Water System (Sc1010001)SC1010001327,422Surface waterNo current violation flagged
Mt Pleasant Water Works (1010002)SC101000291,500Surface water purchasedNo current violation flagged
St John'S Water (Sc1020002)SC102000222,592Surface water purchasedNo current violation flagged
Kiawah Island Utility (Sc1010008)SC10100089,550Surface water purchasedNo current violation flagged
Isle Of Palms W/S Comm (Sc1010004)SC10100049,530Surface water purchasedNo current violation flagged
Seabrook Island Town Of (1010009)SC10100095,939Surface water purchasedNo current violation flagged
Folly Beach City Of (1010005)SC10100055,086Surface water purchasedNo current violation flagged
Sullivans Island Town Of (1010003)SC10100032,521Surface water purchasedNo current violation flagged

02 / SOURCE MIX

Surface water1 systems · 327,422 served
Surface water purchased7 systems · 146,718 served
How to read the population total

It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.