South Carolina Tap Water Quality: Is It Safe to Drink?

2026 EPA water quality data for 150 community water systems serving 1,801,177+ people in South Carolina. Find your water system to see violations, PFAS results, lead testing, and a safety grade — free.

South Carolina draws drinking water from Piedmont reservoirs, the Santee-Cooper lake system, and Coastal Plain aquifers. Disinfection byproduct violations are the most common compliance issue, particularly among smaller systems. Radium and other naturally occurring radionuclides appear in some Coastal Plain groundwater.

Find Your Water System in South Carolina

Enter your ZIP code to see EPA violations, lead test results, PFAS data, and a safety grade for your water.

📊 Data from EPA’s SDWIS · 🔄 Updated quarterly · 🏛️ 150+ water systems in South Carolina

CHARLESTON WATER SYSTEM (SC1010001) CHARLESTON, SC · 327,422 people · Surface Water BJW&SA (0720003) OKATIE, SC · 145,634 people · Surface Water BCWSA SANGAREE W/D (0820002) MONCKS CORNER, SC · 95,345 people · Surface Water Purchased MT PLEASANT WATER WORKS (1010002) MOUNT PLEASANT, SC · 91,500 people · Surface Water Purchased SUMMERVILLE CPW (SC1810003) SUMMERVILLE, SC · 81,750 people · Surface Water Purchased FLORENCE CITY OF (SC2110001) FLORENCE, SC · 79,745 people · Surface Water DARLINGTON COUNTY W&SA (SC1620001) DARLINGTON, SC · 52,288 people · Groundwater AIKEN CITY OF (SC0210001) AIKEN, SC · 45,090 people · Surface Water GOOSE CREEK CITY OF (SC0810004) GOOSE CREEK, SC · 43,744 people · Surface Water Purchased DCWA KNIGHTSVILLE (SC1820001) SUMMERVILLE, SC · 40,141 people · Surface Water Purchased ELECTRIC CITY UTILITIES (SC0410012) ANDERSON, SC · 38,204 people · Surface Water Purchased POWDERSVILLE WATER DISTRICT (SC0420002) POWDERSVILLE, SC · 34,960 people · Surface Water Purchased EDGEFIELD CO W&SA (1920001) EDGEFIELD, SC · 29,200 people · Surface Water DCWS ASHLEY PHOSPHATE (SC1820008) SUMMERVILLE, SC · 26,536 people · Surface Water Purchased NORTH AUGUSTA CITY OF (SC0210003) NORTH AUGUSTA, SC · 26,125 people · Surface Water CHESTERFIELD CO RURAL WATER (SC1320003) CHESTERFIELD, SC · 25,691 people · Groundwater Purchased HILTON HEAD PSD 1 (0720006) HILTON HEAD ISLAND, SC · 25,558 people · Surface Water Purchased GAFFNEY BPW (SC1110001) GAFFNEY, SC · 24,290 people · Surface Water ST JOHN'S WATER (SC1020002) JOHNS ISLAND, SC · 22,592 people · Surface Water Purchased HAMMOND W/D (SC0420007) BELTON, SC · 21,193 people · Surface Water Purchased SOUTH ISLAND PSD (SC0720001) HILTON HEAD ISLAND, SC · 18,299 people · Groundwater TRICO WATER COMPANY (SC1720001) DILLON, SC · 17,963 people · Groundwater BREEZY HILL W/D (SC0220006) GRANITEVILLE, SC · 17,822 people · Surface Water WEST ANDERSON W/D (0420006) ANDERSON, SC · 17,430 people · Surface Water Purchased SANDY SPRINGS WATER CO INC (SC0420003) SANDY SPRINGS, SC · 17,311 people · Surface Water Purchased CHESTER METROPOLITAN DISTRICT (1220002) CHESTER, SC · 15,668 people · Surface Water BIG CREEK W/S DISTRICT (0420009) BELTON, SC · 13,647 people · Surface Water Purchased BCWSA EAST COOPER (SC0820009) MONCKS CORNER, SC · 12,933 people · Surface Water Purchased WALTERBORO CITY OF (1510004) WALTERBORO, SC · 11,829 people · Groundwater STARR-IVA W/D (SC0420005) STARR, SC · 11,125 people · Surface Water Purchased WINNSBORO TOWN OF (2010001) WINNSBORO, SC · 10,391 people · Surface Water GRASSY POND WATER CO INC (SC1120002) GAFFNEY, SC · 9,895 people · Surface Water Purchased BROADWAY W&S DISTRICT (SC0420008) ANDERSON, SC · 9,586 people · Surface Water Purchased KIAWAH ISLAND UTILITY (SC1010008) KIAWAH ISLAND, SC · 9,550 people · Surface Water Purchased ISLE OF PALMS W/S COMM (SC1010004) ISLE OF PALMS, SC · 9,530 people · Surface Water Purchased LAKE CITY CITY OF (SC2110007) LAKE CITY, SC · 9,191 people · Groundwater GEORGETOWN CITY OF (SC2210001) GEORGETOWN, SC · 9,092 people · Surface Water MONCKS CORNER CITY OF (SC0810001) MONCKS CORNER, SC · 8,956 people · Surface Water Purchased BEECH ISLAND W/D (SC0220004) BEECH ISLAND, SC · 8,935 people · Groundwater HARTSVILLE CITY OF (SC1610003) HARTSVILLE, SC · 8,711 people · Groundwater VALLEY PSA (SC0220012) GLOVERVILLE, SC · 7,752 people · Groundwater HOMELAND PARK W/D (SC0420001) ANDERSON, SC · 7,328 people · Surface Water Purchased NEW ELLENTON CPW (SC0210007) NEW ELLENTON, SC · 7,277 people · Groundwater DARLINGTON CITY OF (SC1610001) DARLINGTON, SC · 7,142 people · Groundwater DILLON CITY OF (SC1710001) DILLON, SC · 6,998 people · Groundwater BELTON CITY OF (SC0410004) BELTON, SC · 6,762 people · Surface Water Purchased WILLIAMSTON TOWN OF (0410010) WILLIAMSTON, SC · 6,693 people · Surface Water Purchased CHERAW TOWN OF (SC1310001) CHERAW, SC · 6,325 people · Surface Water SEABROOK ISLAND TOWN OF (1010009) JOHNS ISLAND, SC · 5,939 people · Surface Water Purchased MANNING CITY OF (SC1410002) MANNING, SC · 5,908 people · Groundwater EDISTO BEACH TOWN OF (SC1510006) EDISTO ISLAND, SC · 5,848 people · Groundwater DANIEL MORGAN WATER DISTRICT (1120001) CHESNEE, SC · 5,746 people · Surface Water Purchased ABBEVILLE CITY OF (SC0110001) ABBEVILLE, SC · 5,650 people · Surface Water PENDLETON TOWN OF (SC0410006) PENDLETON, SC · 5,597 people · Surface Water Purchased DRAYTONVILLE WATER DIST (SC1120003) GAFFNEY, SC · 5,456 people · Surface Water Purchased GOUCHER WD (1120004) PACOLET, SC · 5,323 people · Surface Water Purchased DONALDS-DUE WEST W&SA (SC0120001) DONALDS, SC · 5,200 people · Surface Water Purchased FOLLY BEACH CITY OF (1010005) FOLLY BEACH, SC · 5,086 people · Surface Water Purchased JOHNSONVILLE CITY OF (SC2110011) JOHNSONVILLE, SC · 5,083 people · Groundwater GEORGETOWN RURAL COMM WA (2220001) GEORGETOWN, SC · 4,941 people · Groundwater ALLIGATOR RURAL WATER (SC1320004) MCBEE, SC · 4,743 people · Groundwater BARNWELL TOWN OF (SC0610001) BARNWELL, SC · 4,693 people · Groundwater BLACKSBURG TOWN OF (SC1110002) BLACKSBURG, SC · 4,496 people · Surface Water Purchased HONEA PATH TOWN OF (SC0410003) HONEA PATH, SC · 4,386 people · Surface Water Purchased TROLLEY RUN STATION DEVELOPMENT(0220016) GLOVERVILLE, SC · 4,361 people · Groundwater HIGHWAY 88 W/D (SC0420004) SANDY SPRINGS, SC · 3,990 people · Surface Water Purchased ALLENDALE TOWN OF (SC0310001) ALLENDALE, SC · 3,882 people · Groundwater MONTMORENCI W/D (SC0220008) AIKEN, SC · 3,837 people · Groundwater BAMBERG PUBLIC WORKS (SC0510001) BAMBERG, SC · 3,735 people · Groundwater JACKSON TOWN OF (SC0210002) JACKSON, SC · 3,660 people · Groundwater FRIPP ISLAND PSD (SC0720002) FRIPP ISLAND, SC · 3,536 people · Surface Water Purchased CLARENDON CO W&S HWY 260 (SC1450013) MANNING, SC · 3,521 people · Groundwater DENMARK TOWN OF (SC0510002) DENMARK, SC · 3,500 people · Groundwater MIDCOUNTY WATER DIST 2 (SC2020004) WINNSBORO, SC · 3,500 people · Surface Water Purchased BROAD CREEK PSD (SC0720009) HILTON HEAD ISLAND, SC · 3,481 people · Surface Water Purchased PAGELAND CITY OF (SC1310003) PAGELAND, SC · 3,467 people · Groundwater Purchased ANDREWS TOWN OF (SC2210003) ANDREWS, SC · 3,450 people · Groundwater WILLISTON TOWN OF (SC0610002) WILLISTON, SC · 3,251 people · Groundwater ALLENDALE INDUSTRIAL PARK (SC0320002) ALLENDALE, SC · 2,694 people · Groundwater ST MATTHEWS TOWN OF (SC0910001) ST MATTHEWS, SC · 2,644 people · Groundwater BELTON-HONEA PATH WA (SC0410011) HONEA PATH, SC · 2,555 people · Surface Water JENKINSVILLE WATER COMPANY (SC2020001) JENKINSVILLE, SC · 2,550 people · Groundwater SULLIVANS ISLAND TOWN OF (1010003) SULLIVANS ISLAND, SC · 2,521 people · Surface Water Purchased CALHOUN FALLS TOWN OF (SC0110002) CALHOUN FALLS, SC · 2,473 people · Surface Water Purchased WATER OAK UTILITY CO (SC0750002) HILTON HEAD, SC · 2,318 people · Surface Water Purchased ST GEORGE TOWN OF (1810001) ST GEORGE, SC · 2,300 people · Groundwater COWARD TOWN OF (SC2110012) COWARD, SC · 2,283 people · Groundwater SUMMERTON TOWN OF (SC1410003) SUMMERTON, SC · 2,096 people · Groundwater LATTA TOWN OF (SC1710002) LATTA, SC · 2,076 people · Groundwater LINCOLNVILLE TOWN OF (SC1010007) LINCOLNVILLE, SC · 1,980 people · Surface Water Purchased FAIRFAX TOWN OF (SC0310004) FAIRFAX, SC · 1,962 people · Groundwater BLACKVILLE TOWN OF (SC0610003) BLACKVILLE, SC · 1,934 people · Groundwater BARRINEAU WATER SYSTEM (1420002) LAKE CITY, SC · 1,879 people · Groundwater MITFORD WATER DISTRICT (SC2020005) GREAT FALLS, SC · 1,878 people · Surface Water Purchased IVA TOWN OF (SC0410001) IVA, SC · 1,874 people · Surface Water Purchased UPPER CALHOUN/BELLEVILLE (0920001) GASTON, SC · 1,779 people · Groundwater PAMPLICO TOWN OF (SC2110010) PAMPLICO, SC · 1,734 people · Groundwater CHESTERFIELD TOWN OF (1310002) CHESTERFIELD, SC · 1,670 people · Groundwater Purchased DCWS/CLAY FIELD DRIVE (SC1850014) SUMMERVILLE, SC · 1,648 people · Surface Water Purchased LIEBER CORRECTIONAL INSTITUTE (1870050) COLUMBIA, SC · 1,646 people · Groundwater DCWS SOUTHERN PALMS (SC1850011) SUMMERVILLE, SC · 1,494 people · Surface Water Purchased MIDCOUNTY WATER DIST 1 (2020002) WINNSBORO, SC · 1,487 people · Groundwater COLLEGE ACRES PUBLIC W/D (SC0220002) AIKEN, SC · 1,360 people · Groundwater LAKE VIEW TOWN OF (SC1710003) CONWAY, SC · 1,293 people · Groundwater Purchased UPPER CALHOUN/SANDY RUN (SC0920002) GASTON, SC · 1,247 people · Groundwater MCBEE TOWN OF (SC1310004) MCBEE, SC · 1,239 people · Groundwater Purchased TALATHA W/D (SC0220005) NEW ELLENTON, SC · 1,237 people · Groundwater WAGENER TOWN OF (SC0210004) WAGENER, SC · 1,210 people · Groundwater MONETTA TOWN OF (SC0210008) MONETTA, SC · 1,152 people · Surface Water Purchased SCRANTON TOWN OF (SC2110009) SCRANTON, SC · 1,133 people · Groundwater BURNETTOWN W/D (SC0220007) BATH, SC · 1,090 people · Groundwater HARBOR ISLAND (SC0750013) KIAWAH ISLAND, SC · 1,039 people · Surface Water Purchased LAMAR TOWN OF (SC1610004) LAMAR, SC · 1,034 people · Groundwater Purchased BGWC NEVITT FOREST (SC0450007) COLUMBIA, SC · 966 people · Surface Water Purchased RIDGEWAY TOWN OF (SC2010002) RIDGEWAY, SC · 950 people · Surface Water Purchased JEFFERSON TOWN OF (SC1310005) JEFFERSON, SC · 948 people · Groundwater Purchased HARLEYVILLE TOWN OF (SC1810002) HARLEYVILLE, SC · 946 people · Groundwater DCWS EDISTO TRIBAL COUNCIL (1850010) SUMMERVILLE, SC · 925 people · Groundwater CALLAWASSIE ISLAND (SC0750041) KIAWAH ISLAND, SC · 900 people · Surface Water Purchased HOMECOMING SUBDIVISION (SC1850016) SUMMERVILLE, SC · 883 people · Surface Water Purchased DCWA TRANQUIL ACRES (SC1820003) SUMMERVILLE, SC · 858 people · Surface Water Purchased RIDGEVILLE TOWN OF (SC1810004) RIDGEVILLE, SC · 821 people · Groundwater OLANTA TOWN OF (SC2110006) OLANTA, SC · 801 people · Groundwater JAMESTOWN TOWN OF (SC0810003) JAMESTOWN, SC · 800 people · Groundwater PERRY TOWN OF (SC0210006) PERRY, SC · 796 people · Groundwater MACDOUGALL CORRECTIONAL INST (SC0870050) COLUMBIA, SC · 790 people · Groundwater BATH W&SD (SC0220003) BATH, SC · 757 people · Groundwater LANGLEY W/D (SC0220001) LANGLEY, SC · 753 people · Groundwater TURBEVILLE TOWN OF (SC1410004) TURBEVILLE, SC · 723 people · Groundwater AWENDAW TOWN OF (SC1010504) AWENDAW, SC · 713 people · Groundwater GIN POND SHORES WATER CO (SC1450005) SUMMERTON, SC · 664 people · Groundwater WYBOO WATER DEPT INC (SC1450009) MANNING, SC · 618 people · Groundwater DAUFUSKIE ISL UTIL-HAIG POINT (0750036) TEQUESTA, FL · 608 people · Groundwater BCWSA SINEATH MHP (0850018) MONCKS CORNER, SC · 594 people · Surface Water Purchased CLEARWATER WS DIST (SC0220015) CLEARWATER, SC · 529 people · Groundwater Purchased EHRHARDT TOWN OF (SC0510003) EHRHARDT, SC · 507 people · Groundwater LOWER CALHOUN (SC0920003) GASTON, SC · 504 people · Surface Water Purchased SALLEY TOWN OF (SC0210005) SALLEY, SC · 456 people · Groundwater ELKO TOWN OF (0610005) ELKO, SC · 340 people · Groundwater HILDA TOWN OF (SC0610004) HILDA, SC · 318 people · Groundwater NEW HOLLAND W/D (SC0220010) WAGENER, SC · 301 people · Groundwater DCWS REEVESVILLE (SC1820002) SUMMERVILLE, SC · 300 people · Groundwater OLAR GOVAN WATER SYSTEM (0510004) OLAR, SC · 291 people · Groundwater BGWC TOWN CREEK (SC0450003) COLUMBIA, SC · 275 people · Surface Water Purchased DCWA CALOMET VALLEY (1850009) SUMMERVILLE, SC · 275 people · Surface Water Purchased NORTH SHORE WATER SYS (SC1470863) SUMMERTON, SC · 272 people · Groundwater BGWC BRIDGEWATER (SC0450033) COLUMBIA, SC · 270 people · Surface Water Purchased BGWC HAYNIE BUILDERS (SC0450063) COLUMBIA, SC · 270 people · Groundwater BGWC PURDY SHORES (0150014) COLUMBIA, SC · 268 people · Surface Water Purchased DAUFUSKIE ISL UTIL-MELROSE (SC0750043) TEQUESTA, FL · 263 people · Groundwater

South Carolina Drinking Water: Frequently Asked Questions

Is South Carolina tap water safe to drink?

South Carolina has 150 community water systems regulated by the EPA serving 1,801,177+ residents. Water quality varies by system — search above to find your specific utility and see its violation history, lead test results, and safety grade.

How many water systems are in South Carolina?

There are 150 EPA-regulated community water systems in South Carolina serving 1,801,177+ residents. Each system is required to test for over 90 contaminants and publicly report any violations.

Does South Carolina have PFAS in its drinking water?

PFAS (forever chemicals) have been detected in water systems across the country, including South Carolina. The EPA finalized enforceable PFAS limits in 2024. Search for your specific water system above to see if PFAS were detected and whether levels exceed the new federal limits.

EPA data last updated: 2026-06-22