Stockton, CA
Contamination score
Higher = more contaminated vs. other cities.
Share this with friends & family you care about ❤️
Help someone you love know what's in their water — we'll email them Stockton's report. No sign-ups, no list.
Reported illness & cancer claims
No claims reported yet. Be the first to add one.
Claims are aggregated from public records and community reports and may be unverified. If you believe your illness is linked to local water, request a consultation.
Self-reported issues
No issues reported yet. Be the first to report one.
Pollution sources & reported claims near your water
Factories, greenhouses, and contaminated sites mapped around the water supply. Tap any circle for detail.
Get water alerts for Stockton, CA
We'll email you when a new violation, lawsuit, or health report appears for Stockton's water. Free, unsubscribe anytime.

Public water systems
City Of Stockton
- PWSID:
- CA3910012
- Source:
- Surface water
- Serves:
- 191,302 people
SAN JOAQUIN COUNTY - LINCOLN VILLAGE
- PWSID:
- CA3910010
- Source:
- Surface water
- Serves:
- 5,841 people
SAN JOAQUIN COUNTY-MOKELUMNE ACRES
- PWSID:
- CA3910017
- Source:
- Ground water
- Serves:
- 3,802 people
CALIFORNIA WATER SERVICE - STOCKTON
- PWSID:
- CA3910001
- Source:
- Surface water
- Serves:
- 176,266 people
Cdcr California Health Care Facility
- PWSID:
- CA3910803
- Source:
- Surface water
- Serves:
- 5,551 people
EPA & DEP violations
City Of Stockton
PWSID CA39100128 violationsMonitoring violation — CITY OF STOCKTON
low severityOpenEPA SDWIS violation 610013 (code 03) at CITY OF STOCKTON (PWSID CA3910012).
EPA SDWIS · Monitoring violation · Began Jan 1, 2024 · 2 years ago · Source ↗
MCL exceedance — CITY OF STOCKTON
high severityHealth-basedOpenEPA SDWIS violation 610009 (code 02) at CITY OF STOCKTON (PWSID CA3910012).
EPA SDWIS · MCL exceedance · Began Apr 1, 2023 · 3 years ago · Source ↗
MCL exceedance — CITY OF STOCKTON
high severityHealth-basedOpenEPA SDWIS violation 610008 (code 02) at CITY OF STOCKTON (PWSID CA3910012).
EPA SDWIS · MCL exceedance · Began Jan 1, 2023 · 3 years ago · Source ↗
Monitoring violation — CITY OF STOCKTON
low severityResolvedEPA SDWIS violation 610011 (code 52) at CITY OF STOCKTON (PWSID CA3910012).
EPA SDWIS · Monitoring violation · Began Oct 1, 2021 · 4 years ago · Source ↗
Treatment technique violation — CITY OF STOCKTON
high severityHealth-basedResolvedEPA SDWIS violation 610007 (code 41) at CITY OF STOCKTON (PWSID CA3910012).
EPA SDWIS · Treatment technique violation · Began Mar 1, 2016 · 10 years ago · Source ↗
MCL exceedance — CITY OF STOCKTON
high severityHealth-basedResolvedEPA SDWIS violation 610005 (code 02) at CITY OF STOCKTON (PWSID CA3910012).
EPA SDWIS · MCL exceedance · Began Jan 1, 2013 · 13 years ago · Source ↗
Other violation — CITY OF STOCKTON
low severityResolvedEPA SDWIS violation 610004 (code 05) at CITY OF STOCKTON (PWSID CA3910012).
EPA SDWIS · Other violation · Began Nov 1, 2005 · 20 years ago · Source ↗
Other violation — CITY OF STOCKTON
low severityResolvedEPA SDWIS violation 110003 (code 71) at CITY OF STOCKTON (PWSID CA3910012).
EPA SDWIS · Other violation · Began Jul 1, 2001 · 25 years ago · Source ↗
Cdcr California Health Care Facility
PWSID CA39108033 violationsMCL exceedance — CDCR CALIFORNIA HEALTH CARE FACILITY
high severityHealth-basedOpenEPA SDWIS violation 3 (code 02) at CDCR CALIFORNIA HEALTH CARE FACILITY (PWSID CA3910803).
EPA SDWIS · MCL exceedance · Began Apr 1, 2023 · 3 years ago · Source ↗
MCL exceedance — CDCR CALIFORNIA HEALTH CARE FACILITY
high severityHealth-basedOpenEPA SDWIS violation 2 (code 02) at CDCR CALIFORNIA HEALTH CARE FACILITY (PWSID CA3910803).
EPA SDWIS · MCL exceedance · Began Jan 1, 2023 · 3 years ago · Source ↗
MCL exceedance — CDCR CALIFORNIA HEALTH CARE FACILITY
high severityHealth-basedOpenEPA SDWIS violation 1 (code 02) at CDCR CALIFORNIA HEALTH CARE FACILITY (PWSID CA3910803).
EPA SDWIS · MCL exceedance · Began Oct 1, 2022 · 3 years ago · Source ↗
City-wide
10 violationsNitrate — MR violation
medium severityResolvedNitrate MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2024 · 2 years ago · Source ↗
TTHM — MCL violation
high severityHealth-basedResolvedTTHM MCL violation (Resolved).
EPA SDWIS · MCL · Began Apr 1, 2023 · 3 years ago · Source ↗
TTHM — MCL violation
high severityHealth-basedResolvedTTHM MCL violation (Resolved).
EPA SDWIS · MCL · Began Apr 1, 2023 · 3 years ago · Source ↗
TTHM — MCL violation
high severityHealth-basedResolvedTTHM MCL violation (Resolved).
EPA SDWIS · MCL · Began Jan 1, 2023 · 3 years ago · Source ↗
TTHM — MCL violation
high severityHealth-basedResolvedTTHM MCL violation (Resolved).
EPA SDWIS · MCL · Began Jan 1, 2023 · 3 years ago · Source ↗
TTHM — MCL violation
high severityHealth-basedResolvedTTHM MCL violation (Resolved).
EPA SDWIS · MCL · Began Oct 1, 2022 · 3 years ago · Source ↗
Lead and Copper Rule — MR violation
medium severityResolvedLead and Copper Rule MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2021 · 4 years ago · Source ↗
Surface Water Treatment Rule — TT violation
high severityHealth-basedResolvedSurface Water Treatment Rule TT violation (Resolved).
EPA SDWIS · TT · Began Mar 1, 2016 · 10 years ago · Source ↗
TTHM — MCL violation
high severityHealth-basedResolvedTTHM MCL violation (Resolved).
EPA SDWIS · MCL · Began Jan 1, 2013 · 13 years ago · Source ↗
Violation — Violation violation
medium severityContaminant Violation violation.
EPA SDWIS · Violation · Began — · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.