Water Quality: Mendota, CA

1 water system • 11,404 people served

Some Concerns
11
Total Violations
3
Health-Based Violations
1
Water Systems
11,404
Population Served

Water Quality Summary

Mendota is served by 1 public water system with a combined service population of 11,404 people, and has 11 EPA Safe Drinking Water Act violations on record. Critically, 3 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Mendota's violation count is 77% below the national average for California. Contaminants associated with violations include Gross Alpha.

Contaminants Found

Gross Alpha

Alpha-emitting radioactive particles increase cancer risk, particularly from bone and other internal cancers.

Common source: Natural uranium and radium in geological formations

EPA limit: 15 pCi/L (excluding radon and uranium)

Water Systems Serving Mendota

System Name PWSID Source Population Violations
MENDOTA, CITY OF CA1010021 Groundwater 11,404 11

Concerned About Your Water?

A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.

Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.

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Data Sources

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.

Verify at epa.govSearch ECHO for CA