Tap water in Johnston, IA — ZIP 50111
4 public water systems serving about 59,219 people.
A
Excellent
Water systems serving 50111
Johnston Municipal Water Supply
PWSID IA7740011 · serves 24,897 ·
surface water
0 health-based / 0 total violations (5 yrs)
Grimes Water Supply
PWSID IA7736011 · serves 17,997 ·
groundwater
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)
Xenia Rwd (Woodward)
PWSID IA2576705 · serves 3,465 ·
surface water
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