Tap water in Nashua, NH — ZIP 03103
3 public water systems serving about 132,755 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 03103
Manchester Water Works
PWSID NH1471010 · serves 123,500 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 5 ppt — above federal limit
Londonderry
PWSID NH1391010 · serves 6,255 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 6.4 ppt — above federal limit
Little Pond Estates
PWSID NH0192080 · serves 3,000 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 5.4 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