Grass Valley, California Water Quality Report
Water quality data for 14 water systems serving 60,387 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (24)
42
Jan 1, 1992
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
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Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (97)
3A
Dec 1, 2021 — Dec 31, 2021
3A
Dec 1, 2021 — Dec 31, 2021
52
Oct 1, 2019
23
Mar 1, 2013 — Mar 31, 2013
23
Mar 1, 2013 — Mar 31, 2013
+ 92 more resolved violations
Frequently Asked Questions
Is Grass Valley tap water safe to drink?
Grass Valley'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 Grass Valley tap water?
0 contaminants have been detected in Grass Valley's water supply across 14 water systems. See the full contaminant table above for details.
How can I improve my water quality in Grass Valley?
Install a water filter rated for the specific contaminants found in Grass Valley's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Grass Valley have any water quality violations?
Yes, Grass Valley currently has 24 active violations. See the violations section above for details.