THREE VALLEYS MWD
Serving 15 cities in CA
THREE VALLEYS MWD Service Area
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This map shows the approximate service area for THREE VALLEYS MWD. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.
THREE VALLEYS MWD Water Quality Grade
Significant water quality issues. Filter recommended.
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 THREE VALLEYS MWD Water Safe to Drink?
THREE VALLEYS MWD has reported 17 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 0 people across 15 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.
THREE VALLEYS MWD Service Area
Azusa, CA
Charter Oak, CA
Claremont, CA
Covina, CA
Diamond Bar, CA
Glendora, CA
Hacienda Heights, CA
Industry, CA
La Verne, CA
Pomona, CA
Rowland Heights, CA
San Dimas, CA
South San Jose Hills, CA
Walnut, CA
West Covina, CA
THREE VALLEYS MWD Contact & Information
Phone
Mailing Address
For hours of operation and emergency contact information, please visit the official utility website or call the main phone number.
Water Sources & Treatment
Water Sources
Treatment Methods
Recommended Water Filters for THREE VALLEYS MWD
Based on water quality data from cities served by THREE VALLEYS MWD, we recommend NSF-certified filters that can remove contaminants above health guidelines.
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