Tap water in Warrington, PA — ZIP 18966
4 public water systems serving about 927,971 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 18966
Aqua Pa Main System
PWSID PA1460073 · serves 822,600 ·
surface water
1 health-based / 29 total violations (5 yrs)
· PFAS up to 21.8 ppt — above federal limit
Bcwsa Main Lower South
PWSID PA1090079 · serves 52,621 ·
surface water
5 health-based / 10 total violations (5 yrs)
· PFAS up to 19 ppt — above federal limit
Northampton Bucks Co Mun Auth
PWSID PA1090089 · serves 36,750 ·
surface water
0 health-based / 105 total violations (5 yrs)
· PFAS up to 23 ppt — above federal limit
Upper Southampton Mun Auth
PWSID PA1090063 · serves 16,000 ·
surface water
1 health-based / 15 total violations (5 yrs)
· PFAS up to 19.3 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