Tap water in Ayer, MA — ZIP 01434
2 public water systems serving about 14,979 people. PFAS "forever chemicals" have been detected here.
B
Good
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 01434
Ayer Dpw Water Division
PWSID MA2019000 · serves 8,479 ·
groundwater
0 health-based / 2 total violations (5 yrs)
· PFAS up to 19.9 ppt
Devens Massdevelopment
PWSID MA2019001 · serves 6,500 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 11.6 ppt
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology