Water Quality in San Jose, CA (93283)
EPA violation data for public water systems serving ZIP code 93283.
Active Health Violations
53 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 92% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
2,326
Population
15
Water Systems
57
Violations (5yr)
53
Health-Based
Location
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Water Systems Serving This Area (15)
Cws - Bakersfield
Bakersfield, City Of
Tradewind Water Assoc.
11 health-basedValley Estates Poa, Inc.
Rainbird Valley Mwc
33 health-basedSouth Fork Middle School
Tradewinds Water Association
South Fork Elementary School Water Sys
Bella Vista Mutual Water Company
Lakeview Ranchos Mutual Water Company
9 health-basedTubatulabal - Miranda
South Fork Womens Club, Inc.
Sierra Vista Restaurant
All resolvedHillview Acres Mutual Water Company
Kelso Mutual Water Company
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 2025
How Does This Compare?
San Jose (93283) has more violations than 92% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 57.
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.