South Carolina Water Quality
According to EPA Safe Drinking Water Information System (SDWIS), South Carolina has 558 active community water systems in this extract. PlainEnviro's health-based slice lists 720 violation records across 50 systems with at least one such row. These are historical EPA registry counts, not a statewide drinkability score.
Health-based violation records for 558 community water systems in South Carolina. Source: EPA Safe Drinking Water Information System (SDWIS).
Water Systems with Most Health-Based Records
| # | Water System | Health-Based Records | Health |
|---|---|---|---|
| 1 | LOCKHART TOWN OF (SC4420010) Lockhart | 41 | Yes |
| 2 | SANDY RUN MHP (SC0860037) Summerville | 39 | Yes |
| 3 | CHERAW TOWN OF (SC1310001) Cheraw | 35 | Yes |
| 4 | SALUDA CO W&S AUTHORITY (4120001) Ridge Spring | 25 | Yes |
| 5 | CARLISLE TOWN OF (4410003) Carlisle | 25 | Yes |
| 6 | SALUDA CPW (SC4110001) Saluda | 24 | Yes |
| 7 | DEWEES UTILITIES (SC1050011) Dewees Island | 22 | Yes |
| 8 | MCCORMICK CO W&SA (SC3520002) Mccormick | 21 | Yes |
| 9 | YORK CITY OF (SC4610001) York | 18 | Yes |
| 10 | SANTUCK HEBRON WATER CO (SC4420007) Carlisle | 15 | Yes |
| 11 | MCCORMICK CPW (SC3510001) Mccormick | 13 | Yes |
| 12 | HEMINGWAY TOWN OF (SC4510004) Hemingway | 13 | Yes |
| 13 | DANIEL MORGAN WATER DISTRICT (1120001) Chesnee | 12 | Yes |
| 14 | YORK COUNTY EAST WD (SC4620002) York | 12 | Yes |
| 15 | ABBEVILLE CITY OF (SC0110001) Abbeville | 9 | Yes |
| 16 | CALHOUN FALLS TOWN OF (SC0110002) Calhoun Falls | 9 | Yes |
| 17 | GCWSD CARVERS BAY (SC2220013) Pawleys Island | 9 | Yes |
| 18 | WCWSA (SC4510007) Kingstree | 9 | Yes |
| 19 | WATER OAK UTILITY CO (SC0750002) Hilton Head | 8 | Yes |
| 20 | DRAYTONVILLE WATER DIST (SC1120003) Gaffney | 8 | Yes |
| 21 | DCWS I-95 (SC1870914) Summerville | 8 | Yes |
| 22 | BUCKSPORT WATER COMPANY (SC2620003) Conway | 8 | Yes |
| 23 | AIKEN CITY OF (SC0210001) Aiken | 7 | Yes |
| 24 | BGWC MURRAY LODGE (3250013) Columbia | 7 | Yes |
| 25 | CATAWBA INDIAN NATION CWS (SC4650063) Rock Hill | 7 | Yes |
| 26 | MEADOWVIEW TRAILER COURT Fort Mill | 6 | Yes |
| 27 | BLACKSBURG TOWN OF (SC1110002) Blacksburg | 6 | Yes |
| 28 | JENKINSVILLE WATER COMPANY (SC2020001) Jenkinsville | 6 | Yes |
| 29 | BGWC HILTON PLACE (SC3250072) Columbia | 6 | Yes |
| 30 | SIESTA COVE RV PARK MARINA (SC3270802) Gilbert | 6 | Yes |
| 31 | BENNETTSVILLE CITY OF (SC3410001) Bennettsville | 6 | Yes |
| 32 | PICKENS WTP (SC3910001) Pickens | 6 | Yes |
| 33 | RIDGE SPRING TOWN OF (SC4110002) Ridge Spring | 6 | Yes |
| 34 | BROWNS CREEK W/D (SC4420002) Union | 6 | Yes |
| 35 | ROCKY CREEK W/D (SC4420003) Jonesville | 6 | Yes |
| 36 | WILLIAMS TOWN OF (SC1510003) Williams | 5 | Yes |
| 37 | SHADY ACRES (SC3250060) Chapin | 5 | Yes |
| 38 | TRIPLE ACRES MHP 1 (SC3260049) West Columbia | 5 | Yes |
| 39 | NORTH TOWN OF (SC3810010) North | 5 | Yes |
| 40 | COLUMBIA CITY OF (SC4010001) Columbia | 5 | Yes |
| 41 | TOXAWAY POINT Seneca | 4 | Yes |
| 42 | V P MOBILE HOME PARK Lugoff | 4 | Yes |
| 43 | BURNETTOWN W/D (SC0220007) Bath | 4 | Yes |
| 44 | VALLEY PSA (SC0220012) Gloverville | 4 | Yes |
| 45 | BJW&SA (SC0720003) Okatie | 4 | Yes |
| 46 | EDGEFIELD CO W&SA (1920001) Edgefield | 4 | Yes |
| 47 | FLORENCE CITY OF (SC2110001) Florence | 4 | Yes |
| 48 | BETHUNE TOWN OF (SC2810002) Bethune | 4 | Yes |
| 49 | GILBERT-SUMMIT WD (3220001) Gilbert | 4 | Yes |
| 50 | NEWBERRY CITY OF (3610001) Silverstreet | 4 | Yes |
Most Common Contaminants in South Carolina
| Contaminant | Violations | Systems Affected |
|---|---|---|
| TTHM | 345 | 29 |
| Lead and Copper Rule | 122 | 66 |
| LEAD AND COPPER RULE REVISIONS | 63 | 40 |
| Gross Alpha, Excl. Radon and U | 50 | 4 |
| Revised Total Coliform Rule | 37 | 20 |
| Total Haloacetic Acids (HAA5) | 37 | 11 |
| Interim Enhanced Surface Water Treatment Rule | 17 | 6 |
| Combined Radium (-226 and -228) | 13 | 6 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | 10 | 2 |
| Coliform (TCR) | 9 | 7 |
| Surface Water Treatment Rule | 9 | 2 |
| Beryllium, Total | 4 | 1 |
| Chlorite | 3 | 1 |
| Nitrate | 1 | 1 |
Cities with Water Quality Issues
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About This Data
Water quality data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations. Only community water systems (CWS) in South Carolina are included.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.