Water Quality: Hidden Valley Lake, CA

1 water system • 6,235 people served

Some Concerns
1
Total Violations
1
Health-Based Violations
1
Water Systems
6,235
Population Served

Water Quality Summary

Hidden Valley Lake is served by 1 public water system with a combined service population of 6,235 people, and has 1 EPA Safe Drinking Water Act violation on record. Critically, 1 of those are health-based violation, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Hidden Valley Lake's violation count is 98% 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 Hidden Valley Lake

System Name PWSID Source Population Violations
HIDDEN VALLEY LAKE CSD CA1710015 Groundwater 6,235 1

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