Water Quality in San Jose, CA (94060)
EPA violation data for public water systems serving ZIP code 94060.
Active Health Violations
2 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 68% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
1,465
Population
34
Water Systems
12
Violations (5yr)
2
Health-Based
Location
Loading map...
Water Systems Serving This Area (34)
City Of Daly City
California Water Service - San Mateo
City Of Redwood City
California Water Service-S San Francisco
California Water Service - Bear Gulch
City Of San Bruno
North Coast County Water Dist
Estero Municipal Improvement District
All resolvedCalifornia Water Service - San Carlos
City Of Burlingame
Costanoa Campground
La Honda Elementary School
Pescadero High School
Butano Canyon Mutual
All resolvedButano State Park
Pacific Mushroom Farm
Harley Farms Goat Dairy
Bianchi Flowers Inc
All resolvedMarchi Central Farm
1 health-basedDuartes
Dinellis
Pescadero Elementary School
Oku Incorporated
All resolvedDurarte'S Water System
Butano Girl Scout Camp
Puente Housing Solutions
1 health-basedWilliamson Store
Jacobs Farms
San Francisco Venture
Vince Muzzi
Tom Phipps
Isamu Kuwahara
Pete Marchi And Sons
Robert Cervasco
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Annual water quality report delivery requirement.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
Copper (Cu)
Exceeds limitSampled: Jul 2025
How Does This Compare?
San Jose (94060) has more violations than 68% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 12.
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Whole House Carbon Filter
A solid baseline for improving overall water quality. Reduces chlorine, sediment, and many common contaminants throughout your entire home.
Targets:Chlorine, Sediment, Taste & Odor
Look for:NSF/ANSI 42 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.