Water Quality in San Jose, CA (95128)
EPA violation data for public water systems serving ZIP code 95128.
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 67% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
33,165
Population
14
Water Systems
10
Violations (5yr)
2
Health-Based
Location
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Water Systems Serving This Area (14)
San Jose Water
1 health-basedCity Of Sunnyvale
City Of Santa Clara
Great Oaks Wc Inc
City Of San Jose - Evg/Edv/Coy
City Of Milpitas
All resolvedCity Of Mountain View
Cwsc Los Altos Suburban
City Of Palo Alto
City Of Cupertino
Santa Clara Valley Medical Center
O'Connor Hospital
1 health-basedTown & Country Mobile Village
Golden West Mobile Home Park
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2023
How Does This Compare?
San Jose (95128) has more violations than 67% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 10.
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.