Water Quality in San Jose, CA (95901)
EPA violation data for public water systems serving ZIP code 95901.
Active Health Violations
3 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.
37,732
Population
57
Water Systems
21
Violations (5yr)
3
Health-Based
Location
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Water Systems Serving This Area (57)
Cal-Water Service Co.-Chico
South Feather W&P - Miners Ranch
Linda County Water District
Yuba County Motorplex
Yuba Community College Dist.
Marysville Raceway Park
All resolvedMarysville High School
Marysville Flea Market
All resolvedMjusd Foothill Intermediate School
Jehovah S Witnesses
Sycamore Ranch (Exempt)
Arboga School
River Highlands Csd
1 health-basedCastlewood Mobile Home Park
All resolvedCountryside Mobile Home Park
Mjusd Browns Valley School
Sunsweet Growers Dryer
Boy Scouts Glacial Trails Scout Ranch
Mjusd Loma Rica School
Western Nomads
Mjusd Cordua School
Feather River Forest Products - Inactive
Mjusd Dobbins School
Foothill Lions Club
Meyers Court
Loma Rica Market
Pizza Round Up
W.T. Ellis High School
Star Bend Company
Pg&E
Ervin Hamilton
Skateland
Marysville Unified School Dist
Cal Sierra Developments
Seven Mile House
Mi Ranchito Restaurant
Bible Baptist Academy
Jande Country Market
Yuba Mobile Home Park
Oregon House Grocery
Six Mile Station
Hallwood Fruit Company
Christopher Sims Rentals
Hayes Country Village
Yuba Natural Resources
All Pure Chemical
Harmony Village
2 health-basedNight Flight
Spring Valley School
Spring Valley Produce & Frosti
Prune Tree
Department Of Forestry - Inactive
Mariani Packing Company, Inc.
Jewett Avenue Apartments
Priest Valley Store Ws
Jo S Hideaway
Hollywood Trailer Park
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
A naturally occurring element that can cause cancer and other health effects at high levels.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
Copper (Cu)
Exceeds limitSampled: Jan 2025
How Does This Compare?
San Jose (95901) has more violations than 75% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 21.
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
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) 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.