Tap water in Warren Twp.-1820, NJ — ZIP 07940
2 public water systems serving about 233,050 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 07940
Nj American Water - Short Hills
PWSID NJ0712001 · serves 217,230 ·
surface water
0 health-based / 1 total violations (5 yrs)
· PFAS up to 27.5 ppt — above federal limit
Madison Water Dept
PWSID NJ1417001 · serves 15,820 ·
groundwater
0 health-based / 7 total violations (5 yrs)
· PFAS up to 9.6 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