Water Quality in San Jose, CA (94043)
EPA violation data for public water systems serving ZIP code 94043.
Past Health-Based Violations
1 health-based violation was found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 2 monitoring/reporting violations.
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.
33,176
Population
9
Water Systems
3
Violations (5yr)
1
Health-Based
Location
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Water Systems Serving This Area (9)
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
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2023
How Does This Compare?
San Jose (94043) 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.
Whole House Carbon Filter
A solid baseline for improving overall water quality. Reduces chlorine, sediment, and many common contaminants throughout your entire home.
Targets:Chlorine, Sediment, Taste & Odor
Look for:NSF/ANSI 42 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.