Tapcensus

Water quality in Stockton, California

Stockton is in San Joaquin County. 306 active public water systems serve the county; 69 had an EPA violation in the past three years.

Most likely your provider

City of Stockton CA3910012 · Community water system · Surface water · Stockton
Serves 192,702 people Rules violated, past 3 years 2 Last sanitary survey Oct 30, 2025 Distance 8.0 mi

Your location is within the outer bounds of this system's EPA service area.

View system details EPA facility report

Other community water systems in San Joaquin County

92 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Martinez Apartments
 26 2 1.7 mi
Century Mobile Home Park
 50 1 2.1 mi
Sunny Road Water System
 34 1 2.2 mi
Mapache Trailer Park
 275 0 2.4 mi
EL Rio Mobile Home Park
 60 1 2.4 mi
V & P Trailer Court Water System
 35 2 2.7 mi
A1 Winstons Mobile Home Park
 75 2 2.7 mi
California Water Service Stockton
 182,775 0 4.6 mi
Haven Acres River Club INC
 100 0 4.6 mi
San Juan Vista
 201 0 5.0 mi
San Joaquin County-Raymus Village
 1,086 1 5.0 mi
Big Wheel Mobile Home Park
 120 0 5.6 mi
Fremont One
 39 1 5.6 mi
Sahara Mobile Court
 300 0 6.2 mi
City of Lathrop
Lathrop		 38,596 0 6.5 mi
San Joaquin County-Mokelumne Acres
 3,802 0 6.5 mi
Caribou Mobile Park PWS
 180 0 7.0 mi
Manteca, City of
Manteca		 84,928 1 7.1 mi
Country Squire Mobile Estates & Water SY
 131 1 7.1 mi
Walnut Acres
 106 0 7.3 mi
Mobile Villas Trailer Park
 130 0 7.6 mi
Stockton East Water District
 0 0 7.7 mi
Glenwood Mobile Home Park
 100 2 7.7 mi
Cdcr California Health Care Facility
Stockton		 2,186 0 8.0 mi
Stockton Verde Mobile Home Park
 703 0 8.0 mi
All 93 community water systems in San Joaquin County
Non-community systems in San Joaquin County (213: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
J M Eagle (ws)
 100 1 0
Valimet INC
 46 0 0
Delrio Market & Deli
 25 0 0
Austin Industrial Park Water System
 125 1 0
Oasis Market & Produce
 25 0 0
Harney Lane Migrant Center WS
 500 1 1
Fresh Innovations LLC
 111 0 0
Sjc Sports Complex
 100 0 0
Finleys
 27 0 0
Clements Ridge Produce
 25 0 0
Tulare Farms Lllp Water System
 25 0 0
Musco Family Olive CO
 348 1 0
French Camp Golf Course
 25 1 0
J B Hunt Transport INC
 50 0 0
Pnp Stockton #80
 59 1 0
Abf Freight Water System
 25 0 0
Lovelace Transfer Station
 25 0 0
Delicato Vineyards
 430 0 0
San Joaquin Fair 2nd District
 110 1 0
Enviroplex, INC
 50 0 0
Ranch Coffee Shop
 100 1 0
Defense Distrib. Depot, Sharpe Site
 500 0 0
Larsen Ranch 39-40/water System
 30 4 3
ST Josephs Hospital
 150 0 0
Musd-New Haven School
 626 1 0
Escalon Usd Collegeville Sch
 100 0 0
Collegeville Market & Cafe
 150 0 0
O-G Packing CO
 25 0 0
Franks One/stop Food Mart Water Sys
 300 0 0
Cozad Water System
 85 0 0
Raudel Delgado Water System
 56 0 0
ST Francis Motel
 40 2 0
Italian Athletic Club
 50 1 0
New 99 Speedway Water System
 10,000 0 0
At&t California Uer47
 30 0 0
Van Groningen & Sons INC Water System
 125 0 0
California Fruit Processors
 25 0 0
Bethany Temple Water System
 65 0 0
Linden Usd-Glenwood School
 100 0 0
SJ County-Redwood School
 83 0 0
Oakmoore Congre of Jehovah Wit
 100 0 0
Knapheide Truck Equipment Company
 40 0 0
Gaf Materials CO
 45 0 0
Viejo Ltd
 163 0 0
Down River an Itw Company
 25 0 0
Manteca Industrial Prk Csa-30
 76 0 0
Linden Usd-Chartville School
 40 0 0
ST Marys High School
 953 0 0
Waterloo Gun & Bocce Club
 50 1 0
Morada Produce
 100 0 0
All non-community systems
About this data

Water systems are matched to San Joaquin County, nearest to Stockton first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.

Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The California records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.