Virginia tap water by county
Hardness, PFAS sampling, lead and violations for the largest water systems in 4 Virginia counties. In 4 of them, at least one large system detected PFAS in EPA testing (a detection isn't a violation).
| County | Largest system | Hardness | PFAS detected |
|---|---|---|---|
| Fairfax County | Fairfax County Water Authority | 84–170 mg/L (varies) (high) | 4 of 4 systems |
| Prince William County | Pwcsa - East | 1.9 gpg (low) | 4 of 5 systems |
| Loudoun County | Loudoun Water - Central System | 3.7 gpg (low) | 4 of 5 systems |
| Chesterfield County | Chesterfield Co Central Water System | 1.5 gpg (low) | 1 of 1 systems |
Public-record figures, not a test of your tap. Not 100% accurate or guaranteed. Confirm with a water test, your utility or a qualified pro before you buy or act.
Hardness confidence: high = utility report; low = county estimate of untreated local water. Don't see your county? Use the water quality lookup.