Tap water in Johnston, IA — ZIP 50131
3 public water systems serving about 283,812 people.
A
Excellent
Water systems serving 50131
Des Moines Water Works
PWSID IA7727031 · serves 246,055 ·
surface water
0 health-based / 0 total violations (5 yrs)
Johnston Municipal Water Supply
PWSID IA7740011 · serves 24,897 ·
surface water
0 health-based / 0 total violations (5 yrs)
Xenia Rwd (Des Moines)
PWSID IA2573701 · serves 12,860 ·
surface water
0 health-based / 0 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