Tap water in Watertown, SD — ZIP 57221
2 public water systems serving about 4,751 people.
A
Excellent
Water systems serving 57221
Sioux Rural Water System
PWSID SD4600866 · serves 4,280 ·
groundwater
0 health-based / 3 total violations (5 yrs)
Bryant
PWSID SD4600076 · serves 471 ·
groundwater
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