Tap water in Walla Walla, WA — ZIP 99362
2 public water systems serving about 51,106 people.
B
Good
Water systems serving 99362
Walla Walla Water Division
PWSID WA5392500 · serves 42,959 ·
surface water
0 health-based / 11 total violations (5 yrs)
College Place Water Dept
PWSID WA5314050 · serves 8,147 ·
groundwater
0 health-based / 50 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