MyCleanWater

Foster City, California Water Quality Report

Water quality data for 1 water system serving 36,556 people.

100
Excellent
out of 100

Water Source

1
Water System
37K
People Served
Surface water
Water Source

Detected Contaminants

No contaminant data available for this location.

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Compliance & Violations

Resolved Violations (7)

27

Jul 1, 2022 — Sep 30, 2022

moderate

27

Jul 1, 2022 — Sep 30, 2022

moderate

22

Oct 1, 2007 — Oct 31, 2007

critical

22

Oct 1, 2007 — Oct 31, 2007

critical

51

Jun 30, 1993 — Apr 4, 2000

moderate

+ 2 more resolved violations

Frequently Asked Questions

Is Foster City tap water safe to drink?

Foster City's water meets all EPA maximum contaminant levels. However, 0 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.

What contaminants are in Foster City tap water?

0 contaminants have been detected in Foster City's water supply across 1 water system. See the full contaminant table above for details.

How can I improve my water quality in Foster City?

Install a water filter rated for the specific contaminants found in Foster City's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.