Water Quality in San Jose, CA (93256)
EPA violation data for public water systems serving ZIP code 93256.
Active Health Violations
4 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 62% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
5,578
Population
8
Water Systems
8
Violations (5yr)
4
Health-Based
Location
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Water Systems Serving This Area (8)
Cws - Visalia
Tulare, City Of
Porterville, City Of
1 health-basedPixley Public Util Dist
1 health-basedArco Am Pm - Pixley
1 health-basedPioneer Acres
Jdh
1 health-basedCalgren Renewable Fuels
Contaminants Found
At high levels, nitrate can cause blue baby syndrome in infants.
A naturally occurring element that can cause cancer and other health effects at high levels.
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2023
How Does This Compare?
San Jose (93256) has more violations than 62% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 8.
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.