South Carolina tap water quality
558 community water systems
17.4%
exceed lead action level
(97/557 systems)
(97/557 systems)
40.2%
PFOA/PFOS detected
(66/164 systems)
(66/164 systems)
Largest water systems
Lead is the LCR 90th-percentile result; a value above 0.015 mg/L exceeds the
EPA action level. “—” means no lead sample is on file for that system.
| System | City | Population | Lead (p90) |
|---|---|---|---|
| GREENVILLE WATER (SC2310001) | GREENVILLE | 426,057 | 0.0090 mg/L |
| COLUMBIA CITY OF (SC4010001) | COLUMBIA | 354,068 | 0.0400 mg/L |
| CHARLESTON WATER SYSTEM (SC1010001) | CHARLESTON | 327,422 | 0.1650 mg/L |
| GSW&SA (SC2620004) | CONWAY | 252,840 | 0.0050 mg/L |
| SPARTANBURG WATER SYSTEM (SC4210001) | SPARTANBURG | 166,364 | 0.0050 mg/L |
| BJW&SA (SC0720003) | 164,829 | 0.0064 mg/L | |
| BCWSA SANGAREE W/D (0820002) | MONCKS CORNER | 95,345 | 0.0077 mg/L |
| MT PLEASANT WATER WORKS (1010002) | MOUNT PLEASANT | 91,500 | 0.0070 mg/L |
| ROCK HILL CITY OF (SC4610002) | ROCK HILL | 89,850 | 0.0072 mg/L |
| SJWD MIDDLE TYGER WTP (SC4220006) | LYMAN | 89,531 | 0.0179 mg/L |
| SUMMERVILLE CPW (SC1810003) | SUMMERVILLE | 81,750 | 0.0350 mg/L |
| FLORENCE CITY OF (SC2110001) | FLORENCE | 79,745 | 0.0065 mg/L |
| LANCASTER COUNTY W&SD (SC2920001) | LANCASTER | 79,107 | 0.0080 mg/L |
| GREER CPW (SC2310005) | GREER | 54,024 | 0.0085 mg/L |
| SUMTER CITY OF (SC4310001) | SUMTER | 53,070 | 0.0050 mg/L |
| DARLINGTON COUNTY W&SA (SC1620001) | DARLINGTON | 52,288 | 0.0069 mg/L |
| GREENWOOD CPW (2410001) | GREENWOOD | 52,022 | 0.0058 mg/L |
| AIKEN CITY OF (SC0210001) | AIKEN | 51,533 | 0.0199 mg/L |
| MYRTLE BEACH CITY OF (SC2610001) | MYRTLE BEACH | 49,375 | 0.0223 mg/L |
| JOINT MUNICIPAL WSC (SC3220003) | LEXINGTON | 47,838 | 0.0110 mg/L |
| ORANGEBURG DPU (SC3810001) | ORANGEBURG | 47,463 | 0.0106 mg/L |
| LAURENS COUNTY W&S COMM (SC3020001) | LAURENS | 44,866 | 0.0060 mg/L |
| N MYRTLE BEACH CITY OF (SC2610011) | NORTH MYRTLE BEACH | 43,883 | 0.0318 mg/L |
| GOOSE CREEK CITY OF (SC0810004) | GOOSE CREEK | 43,744 | 0.1350 mg/L |
| GCWSD WACCAMAW NECK (SC2220010) | PAWLEYS ISLAND | 41,300 | 0.0164 mg/L |
| INMAN CAMPOBELLO W/D (4220002) | INMAN | 41,007 | 0.0073 mg/L |
| DCWA KNIGHTSVILLE (SC1820001) | SUMMERVILLE | 40,141 | 0.0074 mg/L |
| BLUE RIDGE WATER CO INC (SC2320003) | GREER | 40,006 | 0.0148 mg/L |
| SENECA CITY OF (SC3710002) | SENECA | 39,772 | 0.0055 mg/L |
| ELECTRIC CITY UTILITIES (SC0410012) | ANDERSON | 38,204 | 0.0028 mg/L |
| EASLEY COMBINED UTIL (SC3910002) | EASLEY | 36,098 | 0.0050 mg/L |
| POWDERSVILLE WATER DISTRICT (SC0420002) | EASLEY | 34,960 | 0.0050 mg/L |
| WEST COLUMBIA CITY OF (SC3210004) | WEST COLUMBIA | 34,028 | 0.0090 mg/L |
| WOODRUFF ROEBUCK W/D (SC4220007) | WOODRUFF | 32,038 | 0.0088 mg/L |
| FORT JACKSON (SC4010501) | FORT JACKSON | 31,000 | 0.0850 mg/L |
| YORK COUNTY EAST WD (SC4620002) | YORK | 30,225 | 0.0129 mg/L |
| EDGEFIELD CO W&SA (1920001) | NORTH AUGUSTA | 29,200 | 0.0050 mg/L |
| CONWAY CITY OF (SC2610008) | CONWAY | 27,005 | 0.0050 mg/L |
| DCWS ASHLEY PHOSPHATE (SC1820008) | NORTH CHARLESTON | 26,536 | 0.0053 mg/L |
| NORTH AUGUSTA CITY OF (SC0210003) | 26,125 | 0.0052 mg/L | |
| LUGOFF ELGIN WATER AUTH (SC2820001) | LUGOFF | 25,783 | 0.0057 mg/L |
| CHESTERFIELD CO RURAL WATER (SC1320003) | CHESTERFIELD | 25,691 | 0.0110 mg/L |
| HILTON HEAD PSD 1 (0720006) | HILTON HEAD ISLAND | 25,558 | 0.0176 mg/L |
| CASSATT WTR KERSHAW-LEE CO RWA | CASSATT | 25,485 | 0.0050 mg/L |
| FORT MILL TOWN OF (SC4610003) | FORT MILL | 25,000 | 0.0098 mg/L |
| GAFFNEY BPW (SC1110001) | GAFFNEY | 24,290 | 0.0109 mg/L |
| LEXINGTON TOWN OF (3210001) | LEXINGTON | 24,284 | 0.0499 mg/L |
| ST JOHN'S WATER (SC1020002) | JOHNS ISLAND (STA.) | 22,592 | 0.5080 mg/L |
| BREEZY HILL W/D (SC0220006) | GRANITEVILLE | 21,197 | 0.0069 mg/L |
| HAMMOND W/D (SC0420007) | BELTON | 21,193 | 0.0108 mg/L |
| CAMDEN CITY OF (SC2810001) | CAMDEN | 19,076 | 0.0061 mg/L |
| SOUTH ISLAND PSD (SC0720001) | HILTON HEAD ISLAND | 18,299 | 0.0127 mg/L |
| YORK COUNTY WEST WD (SC4620003) | YORK | 18,273 | 0.0144 mg/L |
| LCF WATER DISTRICT (SC4220010) | CHESNEE | 18,152 | 0.0050 mg/L |
| TRICO WATER COMPANY (SC1720001) | DILLON | 17,963 | 0.0058 mg/L |
| CLEMSON CITY OF (SC3910004) | CLEMSON | 17,896 | 0.0104 mg/L |
| CAYCE CITY OF (SC3210003) | CAYCE | 17,460 | 0.0073 mg/L |
| WEST ANDERSON W/D (0420006) | WEST ANDERSON | 17,430 | 0.0090 mg/L |
| SANDY SPRINGS WATER CO INC (SC0420003) | LA FRANCE | 17,311 | 0.0079 mg/L |
| BUCKSPORT WATER COMPANY (SC2620003) | CONWAY | 17,123 | 0.0066 mg/L |
| MARCO RURAL WATER CO (SC3320001) | MARION | 17,120 | 0.0058 mg/L |
| PIONEER RURAL WATER DIST (SC3720001) | WESTMINSTER | 16,929 | 0.0083 mg/L |
| WALHALLA CITY OF (SC3710004) | WALHALLA | 16,010 | 0.0390 mg/L |
| CHESTER METROPOLITAN DISTRICT (1220002) | FORT LAWN | 15,668 | 0.0063 mg/L |
| SIX MILE W/D (SC3920002) | SIX MILE | 14,845 | 0.0052 mg/L |
| LANCASTER CITY OF (SC2910001) | LANCASTER | 14,074 | 0.0050 mg/L |
| LAURENS CPW (SC3010001) | LAURENS | 13,902 | 0.0050 mg/L |
| BIG CREEK W/S DISTRICT (0420009) | 13,647 | 0.0070 mg/L | |
| UNION CITY OF (SC4410001) | UNION | 13,076 | 0.0090 mg/L |
| BCWSA EAST COOPER (SC0820009) | MONCKS CORNER | 12,933 | 0.0038 mg/L |
| CONWAY RURAL (SC2620001) | CONWAY | 12,740 | 0.0050 mg/L |
| HIGH HILLS RURAL WATER CO INC (4320003) | DALZELL | 12,545 | 0.0092 mg/L |
| WALTERBORO CITY OF (1510004) | WALTERBORO | 11,829 | 0.0050 mg/L |
| NEWBERRY CO W&SA (SC3620002) | NEWBERRY | 11,157 | 0.0044 mg/L |
| YORK CITY OF (SC4610001) | YORK | 11,137 | 0.0050 mg/L |
| STARR-IVA W/D (SC0420005) | STARR | 11,125 | 0.0145 mg/L |
| OCEAN LAKES LTD (SC2660048) | MYRTLE BEACH | 10,727 | 0.0064 mg/L |
| TEGA CAY CITY OF (SC4610008) | TEGA CAY | 10,500 | 0.0028 mg/L |
| GILBERT-SUMMIT WD (3220001) | GILBERT | 10,400 | 0.0088 mg/L |
| WINNSBORO TOWN OF (2010001) | WINNSBORO | 10,391 | 0.0086 mg/L |
| PICKENS WTP (SC3910001) | PICKENS | 10,263 | 0.0067 mg/L |
| SHAW AFB (SC4310501) | 10,000 | 0.0160 mg/L | |
| NEWBERRY CITY OF (3610001) | NEWBERRY | 9,947 | 0.0135 mg/L |
| GRASSY POND WATER CO INC (SC1120002) | GAFFNEY | 9,895 | 0.0051 mg/L |
| WESTMINSTER CITY OF (SC3710003) | WESTMINSTER | 9,588 | 0.0142 mg/L |
| BROADWAY W&S DISTRICT (SC0420008) | ANDERSON | 9,586 | 0.0050 mg/L |
| SOUTHSIDE W/D (3920010) | LIBERTY | 9,568 | 0.0051 mg/L |
| KIAWAH ISLAND UTILITY (SC1010008) | JOHNS ISLAND (STA.) | 9,550 | 0.0091 mg/L |
| ISLE OF PALMS W/S COMM (SC1010004) | ISLE OF PALMS | 9,530 | 0.0303 mg/L |
| LAKE CITY CITY OF (SC2110007) | LAKE CITY | 9,191 | 0.0050 mg/L |
| BENNETTSVILLE CITY OF (SC3410001) | BENNETTSVILLE | 9,168 | 0.0050 mg/L |
| GSW&SA-MARION CITY OF (SC3310001) | MARION | 9,104 | 0.0047 mg/L |
| GEORGETOWN CITY OF (SC2210001) | GEORGETOWN | 9,092 | 0.0058 mg/L |
| MONCKS CORNER CITY OF (SC0810001) | MONCKS CORNER | 8,956 | 0.0063 mg/L |
| CLINTON CITY OF (SC3010002) | CLINTON | 8,938 | 0.0086 mg/L |
| BEECH ISLAND W/D (SC0220004) | BEECH ISLAND | 8,935 | 0.0160 mg/L |
| HARTSVILLE CITY OF (SC1610003) | HARTSVILLE | 8,711 | 0.0050 mg/L |
| DACUSVILLE-CEDAR ROCK WT CO (SC3920008) | PICKENS | 8,700 | 0.0074 mg/L |
| MCCORMICK CO W&SA (SC3520002) | MCCORMICK | 8,500 | 0.0103 mg/L |
| CLOVER TOWN OF (SC4610006) | CLOVER | 8,400 | 0.0104 mg/L |