Water Quality in San Jose, CA (93901)
EPA violation data for public water systems serving ZIP code 93901.
Active Health Violations
9 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.
29,724
Population
60
Water Systems
30
Violations (5yr)
9
Health-Based
Location
Loading map...
Water Systems Serving This Area (60)
Cwsc Salinas
Cal Am Water Company - Monterey
Alco Water Service
Marina Coast Water District
San Antonio Lake Park North Ws
All resolvedSheriff'S Posse Grounds
El Camino Real Ws #16
San Antonio Lake Park South Ws
7 health-basedAcacia Park
Indian Springs Mws - Inactive
Growers Service Assn Ws (Ice)
1 health-basedSalinas High School
Ambler Park Water Supply
Manzanita Park Ws
Royal Oaks Park Ws
Cholame Road Ws #2
San Jerardo Coop Ws
Gonzales Gas Station Ws
Salinas Municipal Golf Course
Canyon Mobile Home Park
Firestone Business Park Ws
1 health-basedCastroville Holding Co
Hitchcock Rd Ws #02
Salinas Golf And Country Club
John Inglis Frozen Foods
El Camino Real North System
Sun Harvest
Sheriff S Posse Grounds Ws
Mc Cormick Shilling
Matsui Nursery
Old Stage Road Water System -
Riverview Farms Ws
Salinas Greenhouse Company
Royal Sierra Estates Ws
Buena Vista Center Ws
El Camino Real North System
El Camino Rd So Water
Youth Science Center
S Kuramura Nursery
Camphora Station Ws
Paradise Water System 31
Golden West Greenhouse
Salinas Valley Floral
Ralph Lane Water System #1
Liquid Ice
Union Ice Water System
Meridian Road Water System #3
Sherwood Park
Kuramura Nursery
El Camino Machine & Welding Ws
Finnerman Labor Camp #1
Yamaguchi Nursery
K-Y Brothers Greenhouse
Uc Hida Nursery
Premium Packing Inc Ws
Kurano Nursery
Eso Greenhouse
Tustin Road Water System 3
Paul Roush
H.D. Peters Co.
Contaminants Found
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: Jul 2025
Copper (Cu)
Exceeds limitSampled: Jul 2024
How Does This Compare?
San Jose (93901) has more violations than 81% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 30.
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.