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WEST VALLEY WATER DISTRICT

Serving 5 cities in CA

Action Needed
11 above health guidelines
97K
People Served
5
Cities
1
Water Sources
0
MCL Violations

Official WEST VALLEY WATER DISTRICT Resources

Emergency Contact

909-820-2546

Available 24/7 for emergencies

Visit Official Website

WEST VALLEY WATER DISTRICT Service Area

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Service Area

This map shows the approximate service area for WEST VALLEY WATER DISTRICT. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.

WEST VALLEY WATER DISTRICT Water Quality Grade

F
Failing

Significant water quality issues. Filter recommended.

Quality Score0/100
11
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 WEST VALLEY WATER DISTRICT Water Safe to Drink?

WEST VALLEY WATER DISTRICT has reported 11 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 96,738 people across 5 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.

WEST VALLEY WATER DISTRICT Service Area

WEST VALLEY WATER DISTRICT Contact & Information

Emergency Line

909-820-2546

24/7 After-Hours

Mailing Address

855 W. BASE LINE RD P.O. BOX 920 Rialto, CA 92376

Water Sources & Treatment

Water Sources

Surface water

Treatment Methods

aerationbiological filtrationconventionaldisinfectionfiltrationionic exchange+1 more

Disinfectant Used

hypochlorite, uv light

WEST VALLEY WATER DISTRICT 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 WEST VALLEY WATER DISTRICT

Based on water quality data from cities served by WEST VALLEY WATER DISTRICT, we recommend NSF-certified filters that can remove contaminants above health guidelines.

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