Tap water in Williamstown, MO — ZIP 62341
3 public water systems serving about 26,210 people. PFAS "forever chemicals" have been detected here.
A
Excellent
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 62341
Rathbun Reg Water Assn (Ft Madison)
PWSID IA0400901 · serves 11,840 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 12 ppt
Clark County Cons Pwsd 1
PWSID MO2024138 · serves 8,000 ·
groundwater
0 health-based / 2 total violations (5 yrs)
Dallas Rural Water District
PWSID IL0710010 · serves 6,370 ·
groundwater
0 health-based / 2 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