North Carolina Water Quality
According to EPA Safe Drinking Water Information System (SDWIS), North Carolina has 1,958 active community water systems in this extract. PlainEnviro's health-based slice lists 3,120 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 1,958 community water systems in North Carolina. Source: EPA Safe Drinking Water Information System (SDWIS).
Water Systems with Most Health-Based Records
| # | Water System | Health-Based Records | Health |
|---|---|---|---|
| 1 | CARTHAGE, TOWN OF Carthage | 172 | Yes |
| 2 | ENFIELD WATER SYSTEM Enfield | 86 | Yes |
| 3 | CIRCLE H MHP Aberdeen | 64 | Yes |
| 4 | HAMLET WATER SYSTEM Hamlet | 54 | Yes |
| 5 | MOUNT PLEASANT, TOWN OF Mt. Pleasant | 51 | Yes |
| 6 | PENDER COUNTY UTILITIES Burgaw | 47 | Yes |
| 7 | MONTGOMERY COUNTY WATER SYSTEM Mt Gilead | 45 | Yes |
| 8 | EDGECOMBE WATER & SEWER DISTRICT Tarboro | 41 | Yes |
| 9 | HENDERSON-KERR LAKE REG WTR Henderson | 39 | Yes |
| 10 | SOUTH GRANVILLE WTR&SEWER AUTHORITY Butner | 36 | Yes |
| 11 | DALLAS, TOWN OF Dallas | 35 | Yes |
| 12 | KNIGHTDALE MHP ESTATES LLC Knightdale | 35 | Yes |
| 13 | FOUR OAKS, TOWN OF Four Oaks | 31 | Yes |
| 14 | LEXINGTON, CITY OF Lexington | 30 | Yes |
| 15 | TOPSAIL BEACH, TOWN OF Topsail Beach | 30 | Yes |
| 16 | ROCKINGHAM CO - 220 CORRIDOR Wentworth | 30 | Yes |
| 17 | STANLY CO-PINEY POINT DIST Albemarle | 28 | Yes |
| 18 | RAMSEUR, TOWN OF Ramseur | 28 | Yes |
| 19 | BESSEMER CITY, CITY OF Bessemer City | 27 | Yes |
| 20 | MICRO, TOWN OF (COUNTY LINE) Micro | 27 | Yes |
| 21 | FRANKLINTON, TOWN OF Youngsville | 26 | Yes |
| 22 | EDENTON, TOWN OF Edenton | 26 | Yes |
| 23 | KENLY, TOWN OF Kenly | 25 | Yes |
| 24 | ELM CITY, TOWN OF Elm City | 22 | Yes |
| 25 | STANFIELD #3-POLK FORD/RENEE FORD Stanfield | 22 | Yes |
| 26 | RICHMOND COUNTY WATER SYSTEM Rockingham | 21 | Yes |
| 27 | SOUTHERN TRACE S/D Chapel Hill | 21 | Yes |
| 28 | YANCEYVILLE, TOWN OF Banner Elk | 19 | Yes |
| 29 | SOUTHGATE MHP Jacksonville | 19 | Yes |
| 30 | JEFFERSON, TOWN OF Jefferson | 18 | Yes |
| 31 | WOODRUN S/D Charlotte | 18 | Yes |
| 32 | ROBBINS WATER SYSTEM Robbins | 18 | Yes |
| 33 | ECHOTA S/D Charlotte | 18 | Yes |
| 34 | CANDOR, TOWN OF Candor | 16 | Yes |
| 35 | MAXTON, TOWN OF Maxton | 16 | Yes |
| 36 | AURORA WATER SYSTEM Aurora | 16 | Yes |
| 37 | MEADOW GLEN S/D Charlotte | 16 | Yes |
| 38 | OAK HILLS MOBILE HOME PARK Durham | 16 | Yes |
| 39 | ROCKINGHAM COUNTY 158 CORRIDOR Wentworth | 15 | Yes |
| 40 | JONESVILLE, TOWN OF Jonesville | 15 | Yes |
| 41 | MAPLE HILL WATER DISTRICT Burgaw | 15 | Yes |
| 42 | ROCKBRIDGE S/D Chapel Hill | 15 | Yes |
| 43 | RAINTREE MHP Parkton | 14 | Yes |
| 44 | BASS MH COURT Nashville | 14 | Yes |
| 45 | YADKIN CO WATER - HWY 21 Yadkinville | 14 | Yes |
| 46 | WALMAR MANOR MHP Banner Elk | 14 | Yes |
| 47 | PRINCETON, TOWN OF Princeton | 13 | Yes |
| 48 | COVENTRY TERRACE Banner Elk | 13 | Yes |
| 49 | HARSHBARGER MHP Durham | 13 | Yes |
| 50 | FRANKLIN COUNTY WATER & SEWER Youngsville | 12 | Yes |
Most Common Contaminants in North Carolina
| Contaminant | Violations | Systems Affected |
|---|---|---|
| TTHM | 888 | 90 |
| Total Haloacetic Acids (HAA5) | 544 | 50 |
| Lead and Copper Rule | 517 | 277 |
| LEAD AND COPPER RULE REVISIONS | 512 | 298 |
| Combined Radium (-226 and -228) | 148 | 15 |
| CARBON, TOTAL | 72 | 8 |
| Groundwater Rule | 67 | 10 |
| Combined Uranium | 60 | 7 |
| Interim Enhanced Surface Water Treatment Rule | 55 | 15 |
| Revised Total Coliform Rule | 54 | 23 |
| Gross Alpha, Excl. Radon and U | 54 | 9 |
| Arsenic | 36 | 3 |
| Carbon tetrachloride | 17 | 2 |
| Nitrate | 17 | 4 |
| 1,2-Dichloropropane | 12 | 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 North Carolina are included.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.