Water Quality: Cobb, CA

2 water systems • 4,208 people served

Some Concerns
18
Total Violations
2
Health-Based Violations
2
Water Systems
4,208
Population Served

Water Quality Summary

Cobb is served by 2 public water systems with a combined service population of 4,208 people, and has 18 EPA Safe Drinking Water Act violations on record. Critically, 2 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Cobb's violation count is 63% below the national average for California. Contaminants associated with violations include Stage 2 DBP.

Contaminants Found

Stage 2 DBP

Trihalomethanes and haloacetic acids that increase cancer risk and may cause adverse reproductive outcomes.

Common source: Chlorine disinfection reacting with natural organic matter in source water

EPA limit: TTHM: 0.080 mg/L; HAA5: 0.060 mg/L

Water Systems Serving Cobb

System Name PWSID Source Population Violations
COBB AREA COUNTY WATER DISTRICT CA1710012 Groundwater 3,515 10
LOCH LOMOND MUTUAL WATER CO CA1700518 Groundwater 693 8

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