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CUCAMONGA VALLEY WATER DISTRICT

Serving 3 cities in CA

Monitor
1 above health guidelines
201K
People Served
3
Cities
1
Water Sources
0
MCL Violations

Official CUCAMONGA VALLEY WATER DISTRICT Resources

CUCAMONGA VALLEY WATER DISTRICT Service Area

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Service Area

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

CUCAMONGA VALLEY WATER DISTRICT Water Quality Grade

A
Excellent

Water meets all health guidelines with no violations.

Quality Score90/100
1
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 CUCAMONGA VALLEY WATER DISTRICT Water Safe to Drink?

CUCAMONGA VALLEY WATER DISTRICT has reported 1 contaminant 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 200,613 people across 3 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.

Get your water independently tested in California β†’

CUCAMONGA VALLEY WATER DISTRICT Service Area

CUCAMONGA VALLEY WATER DISTRICT Contact & Information

Mailing Address

10440 ASHFORD ST Rancho Cucamonga, CA 91730

B2B Contact Data

B2B Contact Data Available

Contacts for CUCAMONGA VALLEY WATER DISTRICT

Updated Jan 2026
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NameTitlePhoneEmail
Jβ–ˆβ–ˆβ–ˆβ–ˆ Sβ–ˆβ–ˆβ–ˆβ–ˆWater Treatment Supervisor(555) β–ˆβ–ˆβ–ˆ-β–ˆβ–ˆβ–ˆβ–ˆjβ–ˆβ–ˆβ–ˆβ–ˆ@cityβ–ˆβ–ˆβ–ˆβ–ˆ.gov
Mβ–ˆβ–ˆβ–ˆβ–ˆ Jβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆUtility Director(555) β–ˆβ–ˆβ–ˆ-β–ˆβ–ˆβ–ˆβ–ˆmβ–ˆβ–ˆβ–ˆβ–ˆ@waterβ–ˆβ–ˆβ–ˆβ–ˆ.org
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Water Sources & Treatment

Water Sources

Surface water

Treatment Methods

conventionaldisinfectionfiltrationno treatment

Disinfectant Used

hypochlorite, no disinfectant, uv light

CUCAMONGA 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 CUCAMONGA VALLEY WATER DISTRICT

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

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