Tap water in Oxford, CT — ZIP 06478
2 public water systems serving about 20,380 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 06478
Aquarion-Valley
PWSID CT1240011 · serves 13,080 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 8.1 ppt — above federal limit
Heritage Water Company
PWSID CT1300021 · serves 7,300 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 4.1 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