Mammoth Lakes, California Water Quality Report
Water quality data for 3 water systems serving 8,979 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 153.0 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 1530% | Above guideline |
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Compliance & Violations
Active Violations (6)
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (126)
27
Jan 1, 2023 — Dec 31, 2023
27
Jan 1, 2023 — Dec 31, 2023
27
Jan 1, 2023 — Dec 31, 2023
27
Jan 1, 2023 — Dec 31, 2023
02
Apr 1, 2019 — Jun 30, 2019
+ 121 more resolved violations
Frequently Asked Questions
Is Mammoth Lakes tap water safe to drink?
Mammoth Lakes's water meets all EPA maximum contaminant levels. However, 1 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Mammoth Lakes tap water?
1 contaminants have been detected in Mammoth Lakes's water supply across 3 water systems. See the full contaminant table above for details.
How can I improve my water quality in Mammoth Lakes?
Install a water filter rated for the specific contaminants found in Mammoth Lakes's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Mammoth Lakes have any water quality violations?
Yes, Mammoth Lakes currently has 6 active violations. See the violations section above for details.