💧 ZIP Water Report

Tap water in Yankton, SD — ZIP 57078

5 public water systems serving about 33,786 people.

B
Good

Water systems serving 57078

Yankton
PWSID SD4600423 · serves 15,411 · groundwater
0 health-based / 0 total violations (5 yrs)
A
By Water District
PWSID SD4600865 · serves 13,320 · surface water
0 health-based / 0 total violations (5 yrs)
A
Clay Rural Water System
PWSID SD4600626 · serves 4,780 · groundwater
0 health-based / 0 total violations (5 yrs)
A
East Winds Court, Inc.
PWSID SD4602099 · serves 180 · surface water
0 health-based / 2 total violations (5 yrs)
A
Timberland Park
PWSID SD4600412 · serves 95 · surface water
1 health-based / 2 total violations (5 yrs)
B

Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology