Tap water in St Thomas, PA — ZIP 17225

2 public water systems serving about 18,089 people. PFAS "forever chemicals" have been detected here.

Good

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 17225

Bear Valley Joint Auth

PWSID PA7280043 · serves 12,589 · surface water

0 health-based / 2 total violations (5 yrs) · PFAS up to 9.7 ppt

Greencastle Area Water Auth

PWSID PA7280014 · serves 5,500 · surface water

0 health-based / 4 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