💧 ZIP Water Report

Tap water in Eureka, CA — ZIP 95503

2 public water systems serving about 46,853 people.

A
Excellent

Water systems serving 95503

Eureka, City Of
PWSID CA1210004 · serves 27,078 · groundwater
0 health-based / 0 total violations (5 yrs)
A
Humboldt C.s.d.
PWSID CA1210009 · serves 19,775 · groundwater
0 health-based / 2 total violations (5 yrs)
A

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