Portola Valley, California Water Quality Report
Water quality data for 2 water systems serving 0 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (21)
52
Jan 1, 1999
52
Jan 1, 1999
52
Jan 1, 1999
52
Jan 1, 1999
52
Jan 1, 1999
52
Jan 1, 1999
52
Jan 1, 1998
52
Jan 1, 1998
52
Jan 1, 1998
52
Jan 1, 1998
52
Jan 1, 1998
52
Jan 1, 1998
52
Jan 1, 1997
52
Jan 1, 1997
52
Jan 1, 1997
52
Jan 1, 1997
52
Jan 1, 1997
52
Jan 1, 1997
52
Jan 1, 1997
52
Jan 1, 1997
52
Jan 1, 1997
Resolved Violations (19)
23
Jul 1, 2001 — Jul 31, 2001
23
Jul 1, 2001 — Jul 31, 2001
23
Jul 1, 2001 — Jul 31, 2001
23
Jan 1, 2000 — Jan 31, 2000
23
Jan 1, 1999 — Jan 31, 1999
+ 14 more resolved violations
Frequently Asked Questions
Is Portola Valley tap water safe to drink?
Portola 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 Portola Valley tap water?
0 contaminants have been detected in Portola Valley's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Portola Valley?
Install a water filter rated for the specific contaminants found in Portola 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 Portola Valley have any water quality violations?
Yes, Portola Valley currently has 21 active violations. See the violations section above for details.