Montclair, California Water Quality Report
Water quality data for 2 water systems serving 56,017 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| PFBA | 0.011 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxA | 0.003 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxS | 0.007 | 0.010 ug/L | 0.001 ug/L(EWG) | 74% | Within limit |
| PFOS | 0.006 | 0.004 ug/L | 0.300 ug/L(EWG) | 140% | Above limit |
| PFPeA | 0.004 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
Recommended Water Filters
Based on the contaminants detected in your water supply, these filtration systems are recommended:
Reverse Osmosis (RO)
Reverse osmosis systems remove up to 99% of PFAS compounds. Recommended for homes with detected PFAS.
Up to 99% PFAS removal
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Compliance & Violations
Active Violations (27)
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Resolved Violations (132)
34
Jun 7, 2013
34
Jun 7, 2013
52
Oct 1, 2011
52
Oct 1, 2011
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Oct 1, 2011
+ 127 more resolved violations
Frequently Asked Questions
Is Montclair tap water safe to drink?
Montclair's water has 1 contaminant detected above EPA limits. While the water is treated, residents may want to consider additional filtration.
What contaminants are in Montclair tap water?
5 contaminants have been detected in Montclair's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Montclair?
Install a water filter rated for the specific contaminants found in Montclair's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Montclair have any water quality violations?
Yes, Montclair currently has 27 active violations. See the violations section above for details.