Tap water in Warrenton, VA — ZIP 20187
2 public water systems serving about 20,619 people. PFAS "forever chemicals" have been detected here.
C
Fair
PFAS detected: at least one system serving this ZIP reported PFAS in EPA UCMR 5
testing. Levels and the 2024 federal limits are shown per system below.
Water systems serving 20187
Warrenton, Town Of
PWSID VA6061600 · serves 11,801 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 4.6 ppt — above federal limit
New Baltimore Regional
PWSID VA6061318 · serves 8,818 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 12 ppt — above federal limit
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology