South Carolina Water Quality Ratings
TapWaterSafety has rated 14 public water systems in South Carolina, serving a combined 2,261,259 residents. The statewide average grade is C.
State average grade
C
Total utilities rated
14
Population served
2,261,259
🇪🇺 Would fail EU standards
1 of 14
Top water quality concerns in South Carolina
- Haloacetic acids (HAA9) significantly above health guideline
- Total trihalomethanes (TTHMs) significantly above health guideline
- Haloacetic acids (HAA5) significantly above health guideline
- PFAS contamination
- Bromodichloromethane significantly above health guideline
Cities in South Carolina
Browse tap water quality reports by city. Click any city to see its grade, what's in the water, and recommended filters.
Grade distribution
All rated utilities in South Carolina
Sorted by score, highest first. Click any utility to see the full grade card.
| Rank | Utility | City | Population | Score | Grade |
|---|---|---|---|---|---|
| #1 | BCWSA SANGAREE W/D (0820002) | MONCKS CORNER | 95,345 | 81 | B |
| #2 | GREENVILLE WATER (2310001) | GREENVILLE | 396,265 | 80 | B |
| #3 | GREER CPW (SC2310005) | GREER | 54,024 | 79 | B |
| #4 | SPARTANBURG WATER SYSTEM (4210001) | SPARTANBURG | 166,364 | 78 | B |
| #5 | SUMMERVILLE CPW (SC1810003) | SUMMERVILLE | 81,750 | 77 | B |
| #6 | MT PLEASANT WATER WORKS (1010002) | MOUNT PLEASANT | 91,500 | 69 | C |
| #7 | CHARLESTON WATER SYSTEM (SC1010001) | CHARLESTON | 327,422 | 68 | C |
| #8 | FLORENCE CITY OF (SC2110001) | FLORENCE | 79,745 | 66 | C |
| #9 | LANCASTER COUNTY W&SD (SC2920001) | LANCASTER | 79,107 | 66 | C |
| #10 | GSW&SA (SC2620004) | CONWAY | 252,840 | 65 | C |
| #11 | SJWD MIDDLE TYGER WTP (4220006) | LYMAN | 87,259 | 64 | D |
| #12 | ROCK HILL CITY OF (SC4610002) | ROCK HILL | 84,504 | 64 | D |
| #13 | COLUMBIA CITY OF (SC4010001) | COLUMBIA | 319,500 | 59 | D |
| #14 | BJW&SA (0720003) | OKATIE | 145,634 | 57 | D |