Water Quality in San Jose, CA (95126)
EPA violation data for public water systems serving ZIP code 95126.
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 81% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
38,327
Population
23
Water Systems
24
Violations (5yr)
4
Health-Based
Location
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Water Systems Serving This Area (23)
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
Tri Valley Growers Plant J
Bellarmine College Prep School
Kings Row Manufactured Home Community
Westfield Garden Mobile Home Park
Cedar Grove Mobile Home Park
2 health-basedRiverbend Mhp
All resolvedLonghorn Mobile Home Community
All resolvedCamp Chesebrough
Valley Brook Mhp
1 health-basedPico Blanco Boy Scout Camp Ws
Sundown Mobile Home Park
R.H. Jones
Harrison Rd Ws #09
Lakewood Mhp
Contaminants Found
Annual water quality report delivery requirement.
Missed testing deadlines — not a detection of bacteria.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Used to disinfect water — generally safe at regulated levels.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2024
How Does This Compare?
San Jose (95126) has more violations than 81% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 24.
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
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 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.