Tap Water Quality in Claremont, California (ZIP 91711)
Serving Claremont, California
Is the Tap Water Safe in Claremont, California?
Tap water in Claremont, California (ZIP 91711) has 7 contaminants above EPA health-based guidelines (MCLGs) in at least one of the 1 city served. We recommend reviewing detailed city reports below and considering a certified water filter for additional protection.
ZIP 91711 is served by 3 water utilities providing water to Claremont. Water quality varies by utility and city. Click on the cities below to see detailed reports for your specific area.
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Water Quality Report for ZIP 91711
5 contaminants above EPA health guidelines
These levels represent the worst case across all cities in this ZIP code. Check individual city reports for specific details.
Found in Claremont
Found in Claremont
Found in Claremont
Found in Claremont
Found in Claremont
Water Utilities Serving ZIP 91711
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Best Water Filters for Claremont (ZIP 91711)
Based on the contaminants found in your area, we recommend NSF-certified water filters that can remove the specific contaminants above health guidelines.
Filter guides for the contaminants detected here:
Frequently Asked Questions about Claremont Tap Water
Is the tap water safe in Claremont, California (ZIP 91711)?
Which water utilities serve ZIP code 91711?
How do I pay my water bill in Claremont (ZIP 91711)?
What contaminants are in Claremont water (ZIP 91711)?
Should I use a water filter in Claremont (ZIP 91711)?
What cities are in ZIP code 91711?
How we built this page
Water-quality data on this page comes from public federal and state records for the 3 utilityies serving ZIP 91711. We refresh each utility's record whenever its underlying source publishes new data.
- Contaminants & violations: EPA Safe Drinking Water Information System (SDWIS) plus the Unregulated Contaminant Monitoring Rule (UCMR-5) for PFAS and emerging contaminants.
- Annual reports: the most recent published Consumer Confidence Report (CCR) from each utility serving this ZIP, where available.
- Service area & contact: EPA SDWIS plus the California Department of Environmental Protection / Drinking Water program.
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