THREE VALLEYS MWD
Serving 14 cities in CA
Monitor
3 above health guidelines
0K
People Served
14
Cities
2
Water Sources
0
MCL Violations
Is THREE VALLEYS MWD Water Safe to Drink?
THREE VALLEYS MWD has reported 3 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 14 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
Charter Oak, CA
13+ contaminants tested
2 above guidelines
Monitor
Claremont, CA
86+ contaminants tested
1 above guidelines
Monitor
Covina, CA
99+ contaminants tested
2 above guidelines
Monitor
Diamond Bar, CA
13+ contaminants tested
2 above guidelines
Monitor
Glendora, CA
14+ contaminants tested
2 above guidelines
Monitor
Hacienda Heights, CA
84+ contaminants tested
0 above guidelines
Safe
Industry, CA
13+ contaminants tested
2 above guidelines
Monitor
La Verne, CA
47+ contaminants tested
3 above guidelines
Monitor
Pomona, CA
217+ contaminants tested
1 above guidelines
Monitor
Rowland Heights, CA
13+ contaminants tested
2 above guidelines
Monitor
San Dimas, CA
118+ contaminants tested
3 above guidelines
Monitor
South San Jose Hills, CA
84+ contaminants tested
0 above guidelines
Safe
Walnut, CA
13+ contaminants tested
2 above guidelines
Monitor
West Covina, CA
84+ contaminants tested
0 above guidelines
Safe
THREE VALLEYS MWD Contact & Information
Contact
Mailing Address
Water Sources
Surface water purchasedSurface water
Treatment Methods
conventionaldisinfectionfiltrationbiological filtrationno treatmentpre-oxidation with chlorine+2 more
Disinfectant Used
chloramines, uv light
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.