Water Quality in Stockton, CA (95240)
EPA violation data for public water systems serving ZIP code 95240.
Active Health Violations
6 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 70% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
50,517
Population
63
Water Systems
12
Violations (5yr)
6
Health-Based
Location
Loading map...
Water Systems Serving This Area (63)
City Of Stockton
3 health-basedCalifornia Water Service - Stockton
Tracy, City Of
Manteca, City Of
All resolvedLodi, City Of
Sjc Micke Grove Park
Jahant Food N Fuel Stop
Backspin Golf Center
Lodi Usd-Davis School
1 health-basedLodi Usd-Morada Middle School
Lodi Usd-Houston School
Tower Park Marina
Phillips Farms
Deshmesh Darbar Lodi/Stk Water Sys
Cherokee Memorial Park Inc Water System
Boething Treeland Farms Inc
Lodi Usd-Elkhorn School
Stockton / Lodi Rv Park
Lodi Usd-Henderson School
Ray School
Lodi Usd-Turner Academy At Tokay Colony
Lodi Usd-Turner Academy
Sunwest Liquors - Inactive
Hammer Lane Water System
Lodi Usd-Live Oak School
Sjc Sports Complex
Royce Farms Bbq
Fricot City
Labor Camp #65-70
Marions Ranch House Motel
Ben Osburn
Lodi Unified School District
Caldoni Labor Camp #65-7
Dr. Neal
Hacienda Guana - Inactive
Lodi Usd-Dorothy Mahin School
Haynes Board & Care Home
Idlewild Mobile Park
Louise Graffigna
Bjj Company Llc
C & K Investments
David Comer
Tamarack Springs Mutual Water
Kramer Apartments - Inactive
Sks Enterprises
Morgan Manor
Tarditi Rentals Water
1 health-basedJessies Grove Winery
Faith Community Church Of The Nazarene
Jacobs Terminous Market
E D U Camp
Westgate Landing Park Water System
Sjc Mossdale Crossing Park
Palo Colorado Water System
Valley Landscaping & Maint Inc
1 health-basedBear Creek Winery
California Islamic Center
Ali'S Water System
John R Turner
Hanot Foundation
Mary Thomas Guest Ranch
Lodi Unified School Dist
Woodbridge Vineyard Assn
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
How Does This Compare?
Stockton (95240) has more violations than 70% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 12.
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
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.