Water Quality in San Jose, CA (94030)
EPA violation data for public water systems serving ZIP code 94030.
Active Health Violations
1 health-based violation 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 43% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
22,689
Population
14
Water Systems
3
Violations (5yr)
1
Health-Based
Location
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Water Systems Serving This Area (14)
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
City Of Millbrae
Willow Creek M.W.C.-Clarkville
Hunter'S Fishing Resort
1 health-basedWigwam Road Apartments
Contaminants Found
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2023
How Does This Compare?
San Jose (94030) has more violations than 43% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 3.
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.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 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.