Tap water in Redwood City, CA — ZIP 94070
2 public water systems serving about 124,844 people.
A
Excellent
Water systems serving 94070
City Of Redwood City
PWSID CA4110022 · serves 90,043 ·
surface water
0 health-based / 0 total violations (5 yrs)
California Water Service - San Carlos
PWSID CA4110007 · serves 34,801 ·
surface water
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