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CALIFORNIA WATER SERVICE CO. - DOMINGUEZ

Serving 4 cities in CA

Action Needed
18 above health guidelines
143K
People Served
4
Cities
1
Water Sources
0
MCL Violations

Official CALIFORNIA WATER SERVICE CO. - DOMINGUEZ Resources

CALIFORNIA WATER SERVICE CO. - DOMINGUEZ Service Area

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Service Area

This map shows the approximate service area for CALIFORNIA WATER SERVICE CO. - DOMINGUEZ. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.

CALIFORNIA WATER SERVICE CO. - DOMINGUEZ Water Quality Grade

F
Failing

Significant water quality issues. Filter recommended.

Quality Score0/100
18
Above Health Guidelines
0
EPA Violations

Grade is calculated based on contaminants exceeding health guidelines (MCLG) and EPA Maximum Contaminant Level violations. A = Excellent (90-100), B = Good (80-89), C = Fair (70-79), D = Poor (60-69), F = Failing (<60).

Is CALIFORNIA WATER SERVICE CO. - DOMINGUEZ Water Safe to Drink?

CALIFORNIA WATER SERVICE CO. - DOMINGUEZ has reported 18 contaminants above EPA health-based guidelines (MCLGs) in at least one city served. We recommend reviewing individual city reports below for specific water quality details.

This utility serves 143,464 people across 4 cities in CA. Water quality can vary by location within the service area. Check individual city pages below for detailed contaminant data specific to your area.

CALIFORNIA WATER SERVICE CO. - DOMINGUEZ Service Area

CALIFORNIA WATER SERVICE CO. - DOMINGUEZ Contact & Information

Mailing Address

1720 NORTH FIRST STREET San Jose, CA 95112

Water Sources & Treatment

Water Sources

Surface water purchased

Treatment Methods

air strippingdisinfectionfiltrationionic exchange

Disinfectant Used

chloramines

CALIFORNIA WATER SERVICE CO. - DOMINGUEZ Annual Water Quality Reports

2026 Water Quality Report
Latest Consumer Confidence Report (CCR)
View Report

Historical reports are being compiled. Check back soon for archived water quality data.

What is a CCR? The Consumer Confidence Report (CCR) is an annual water quality report that water utilities are required by the EPA to provide to customers. It contains information about your water source, detected contaminants, and compliance status.

Recommended Water Filters for CALIFORNIA WATER SERVICE CO. - DOMINGUEZ

Based on water quality data from cities served by CALIFORNIA WATER SERVICE CO. - DOMINGUEZ, we recommend NSF-certified filters that can remove contaminants above health guidelines.

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