Tap water in Chelmsford, MA — ZIP 01824
2 public water systems serving about 31,550 people. PFAS "forever chemicals" have been detected here.
F
Failing
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 01824
Chelmsford Water District
PWSID MA3056000 · serves 28,750 ·
groundwater
1 health-based / 1 total violations (5 yrs)
· PFAS up to 8.9 ppt — above federal limit
East Chelmsford Water District
PWSID MA3056001 · serves 2,800 ·
surface water
0 health-based / 0 total violations (5 yrs)
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology