Tap water in Derry, NH — ZIP 03053
2 public water systems serving about 23,783 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 03053
Derry Water Dept
PWSID NH0611010 · serves 17,528 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 4.6 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
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology