Water Quality in San Jose, CA (95037)
EPA violation data for public water systems serving ZIP code 95037.
Active Health Violations
8 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 75% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
51,943
Population
44
Water Systems
16
Violations (5yr)
8
Health-Based
Location
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Water Systems Serving This Area (44)
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
City Of Morgan Hill
Morgan Hill Usd-Encinal School
Morgan Hill Usd-Burnett School
Morgan Hill Usd-San Martin School
George Chiala Farms, Inc..
Morgan Hill Usd-Gwinn School
George Chiala Farms Inc
Amedeo Restaurant
Hidden Acres Trailer Villa
1 health-basedGreen Mountain Water Company
All resolvedHill Country
Uvas Pines Rv Park
Morgan Hill Usd-Machado School
All resolvedSullivan Mutual Water
Green Acres Mutual Water
1 health-basedEconomy Inn
Jubilee Community Center
Royal Oaks Mushroom Enterprises Inc
Lilac Lane Water Company
Uesugi Farms
Rancho De Lomas Mutual Water Company
1 health-basedChiala Water System
Sunflower Restaurant
Coyote Valley Sporting Clays
Estates Of Paradise Valley
Garden Court Ws #01
4 health-basedCalifornia Div Of Forestry
Chaboya Hills Estates
Sanger'S Park
Charles Bedal
Quail Canyon Inn, Inc.
Morgan Hill Outer Limits
Spring Avenue Mutual
California Div Of Forestry
Stonebridge Mutual Water Co
Contaminants Found
At high levels, nitrate can cause blue baby syndrome in infants.
Missed testing deadlines — not a detection of bacteria.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2023
How Does This Compare?
San Jose (95037) has more violations than 75% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 16.
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.