Mariposa, California Water Quality Report
Water quality data for 7 water systems serving 3,755 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 113.0 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 1130% | Above guideline |
Get a Free Water Quality Consultation
Connect with a certified water treatment professional in Mariposa, California.
Get Water Quality Alerts
Be the first to know when water quality changes in Mariposa.
Compliance & Violations
Active Violations (17)
4G
Oct 17, 2024
2E
Oct 17, 2024
52
Oct 1, 2024
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
Resolved Violations (283)
71
Jul 1, 2024
71
Jul 1, 2024
3A
Feb 1, 2022 — Feb 28, 2022
3A
Feb 1, 2022 — Feb 28, 2022
52
Oct 1, 2020
+ 278 more resolved violations
Frequently Asked Questions
Is Mariposa tap water safe to drink?
Mariposa'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 Mariposa tap water?
1 contaminants have been detected in Mariposa's water supply across 7 water systems. See the full contaminant table above for details.
How can I improve my water quality in Mariposa?
Install a water filter rated for the specific contaminants found in Mariposa's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Mariposa have any water quality violations?
Yes, Mariposa currently has 17 active violations. See the violations section above for details.