Tapcensus

Water quality for ZIP code 95304

ZIP 95304 covers Tracy and Lathrop in San Joaquin County, California, one of 30 ZIP codes in the county. 306 active public water systems serve the county; 69 had an EPA violation in the past three years.

Most likely your provider

Tracy, City of CA3910011 · Community water system · Surface water · Tracy
Serves 98,215 people Rules violated, past 3 years 0 Last sanitary survey Nov 29, 2025 Distance 4.6 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
Fairoaks PWS #44
 1,172 0 2.2 mi
Par Country Estates Csa-16
 178 0 2.4 mi
Maurland Manor Water System
 92 0 2.7 mi
Corral Hollow PWS
 145 0 4.2 mi
Morehead Park
 300 2 4.6 mi
LA Torres Park
 40 1 5.8 mi
132 Investments Water System
 187 1 6.9 mi
San Joaquin River Club INC
 600 0 7.2 mi
Currier Estates Water Corp
 148 1 7.8 mi
Santos Ranch PWS #5-Csa #35
 320 0 7.9 mi
Cardoza Villa Corp
 30 2 8.2 mi
Islander Marina
 150 0 9.4 mi
Oakwood Lake Water District-Subdivision
 1,640 0 9.4 mi
City of Mountain House
 26,400 0 10.8 mi
City of Lathrop
Lathrop		 38,596 0 10.8 mi
San Joaquin County-Mokelumne Acres
 3,802 0 10.8 mi
Manteca, City of
Manteca		 84,928 1 13.0 mi
Haven Acres River Club INC
 100 0 13.2 mi
Cdcr California Health Care Facility
Stockton		 2,186 0 14.2 mi
San Joaquin County-Raymus Village
 1,086 1 15.3 mi
Martinez Apartments
 26 2 15.6 mi
Ripon, City of
Ripon		 15,753 0 15.8 mi
Spring Creek Estates PWS
 119 0 17.1 mi
Century Mobile Home Park
 50 1 18.7 mi
Sunny Road Water System
 34 1 18.8 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
Tracy Matrl Recvry/sld Waste WS
 130 0 0
Dynatect Ro-Lab, Inc.
 40 1 1
Glassfab Tempering Services Inc.
 125 1 1
Jefferson Esd-Jefferson School
 483 1 1
Northwest Pipe Company
 82 2 1
Family Market Water System
 1,105 0 0
Country Mart Diesel & Gas Water Sys
 35 0 0
Country Market
 25 1 0
Zapien Market
 50 1 0
Valpico Industrial Park
 150 1 1
Defense Distrib. Depot Tracy Site
 1,249 0 0
FC Tracy Holdings, LLC
 219 0 0
Church of Jesus Christ of Lds
 100 0 0
New Jerusalem School
 210 0 0
Navarra Water System
 730 0 0
West 11th Street Chevron Water System
 25 0 0
Darrigos Water System
 100 0 0
Western Pallet Supply & Logistics
 60 1 1
Carmelo Industrial Park
 50 1 1
Pastor ST Bernard Chrch Wtr Sys
 50 0 0
Star Motel
 53 1 0
San-I-Pak INC
 25 1 0
Owens-Brockway Glass Container INC
 404 1 0
Schulte Road Warehouse 3, LLC Wtr Sys
 110 0 0
Banta Inn Water System
 54 0 0
Banta Elementary School
 200 0 0
Tracy Islamic Center Water System
 25 0 0
Lawrence Livermore National Lab-Site 300
 270 0 0
Southwinds Church of Tracy
 25 0 0
Durham Ferry Community School
 31 1 1
Carnegie Svra
 186 0 0
Arp Minimart Corp WS
 125 0 0
Gurdawara, Gur Nanak Parkash Water Syste
 26 0 0
Old River Golf Course
 25 1 0
Turtle Beach & Water System
 140 0 0
Two Rivers RV Park
 50 0 0
Corti Water System
 120 0 0
Oasis Marina-Resort
 100 0 0
Raudel Delgado Water System
 56 0 0
West Kingdom Hall of Jehovah's Witnesses
 100 1 0
Csp Caswell State Park
 182 0 0
Franks One/stop Food Mart Water Sys
 300 0 0
Defense Distrib. Depot, Sharpe Site
 500 0 0
Lovelace Transfer Station
 25 0 0
Ripon Church of Christ
 25 0 0
Investors of King Island Water Sys
 40 1 0
Finleys
 27 0 0
Manteca Industrial Prk Csa-30
 76 0 0
Oasis Market & Produce
 25 0 0
Delicato Vineyards
 430 0 0
All non-community systems
About this data

Water systems are matched to San Joaquin County, the county this ZIP code lies in, nearest to the ZIP code's centre 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.

ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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. Retrieved from ECHO on Oct 11, 2026.