Water Quality in San Jose, CA (93309)
EPA violation data for public water systems serving ZIP code 93309.
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.
63,217
Population
13
Water Systems
3
Violations (5yr)
1
Health-Based
Location
Loading map...
Water Systems Serving This Area (13)
Cws - Bakersfield
Bakersfield, City Of
Cal State Bakersfield
South High School Water System
Peach Tree Ranch - Bussell Ranch Inc.
Stockdale Annex Mutual Water
Stockdale Mutual Water Co.
Palm Vista Mobile Home Park
Long Canyon Water Company Corp.
Stoco Mutual Water Company
1 health-basedGindick & Bartholomew
Leon'S Trailer Park And Apartments
Heritage Railway Service Inc.
Contaminants Found
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
How Does This Compare?
San Jose (93309) 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.