Tap water in Shamokin, PA — ZIP 17921
2 public water systems serving about 47,200 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 17921
Aqua Pa Roaring Creek Division
PWSID PA4490024 · serves 43,000 ·
surface water
1 health-based / 4 total violations (5 yrs)
Ashland Area Water Authority
PWSID PA3540030 · serves 4,200 ·
surface water
0 health-based / 38 total violations (5 yrs)
· PFAS up to 20.1 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