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Public environmental health records for water, air, land, infrastructure, incidents, and community indicators.
Toxin Scout summarizes public records from government and public datasets. Data can be delayed, incomplete, approximate, matched at non-parcel levels, or have accuracy problems as a result of this product's beta status, so verify important findings against the linked source records.
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Preparing Stockton environmental records...
Drinking water compliance, PFAS records, natural water body health, discharge permits, and water-quality monitoring records for Stockton.
Public water-system records for Stockton, CA from EPA SDWIS.
City of Stockton
Active monitoring or reporting issue detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
City listed in EPA records · Serves 191,302 people
Data from EPA SDWIS
PFAS screening separates EPA UCMR5 drinking-water monitoring from nearby DoD PFAS investigation-site records; EPA samples shown are from Feb 2023.
Drinking Water PFAS Monitoring
EPA UCMR5 samples public water systems. These results are separate from nearby PFAS cleanup or investigation-site records.
2 PFAS sample results above EPA limits
Sample period: Feb 2023
UCMR5 results are sampled by public water system, not every household. Confirm your water provider before treating these as tap-water results for a specific address.
| Chemical | Concentration (µg/L) | EPA Limit (µg/L) | Sample date | Over Limit |
|---|---|---|---|---|
| PFOS | 0.0048 | 0.0040 | 2023-02-28 | Yes |
| PFOS | 0.0042 | 0.0040 | 2023-02-28 | Yes |
Nearby PFAS Investigation Sites
DoD records are nearby site investigations, not Stockton drinking-water detections. Record names come from the source database and can be broad.
Navcomtelsta Stockton
Navy · Active
Suspected PFAS record
Remedial investigation underway
Estimated investigation end date: 2040-06
No health-relevant impaired water body records surfaced within 10 km in EPA ATTAINS.
Data from EPA ATTAINS
NPDES permits regulate pollutant discharges into U.S. waterways. Facilities must report compliance quarterly.
Violation records
Last inspected: Dec 2025
Data from EPA ECHO
Reviewed: source records as of Jan 5005
Air quality data from EPA monitoring stations, facility emissions inventories, and area-level air-quality designations in this city.
San Joaquin County
Reported: Dec 2020
EPA national average is ~30 per million
According to EPA, a cancer risk of 40-in-1-million means that for every 1 million people continuously exposed to these air toxics over a 70-year lifetime, an estimated 40 may develop cancer from that exposure. This is in addition to cancer risk from all other causes.
Top local emission sources
Data from EPA AirToxScreen
EPA designates an area as nonattainment when air quality does not meet federal health-based standards (NAAQS) for a specific pollutant.
San Joaquin Valley: Ozone
NonattainmentExtreme8-Hour Ozone (2015 Standard)
Original designation: Aug 2018
Health effects (EPA): Respiratory inflammation, aggravation of asthma, reduced lung function (EPA)
San Joaquin Valley: PM2.5
NonattainmentSeriousPM-2.5 (2012 Standard)
Original designation: Apr 2015
Health effects (EPA): Cardiovascular disease, respiratory illness, premature death (EPA)
San Joaquin Valley 1997 PM2.5 24-Hour: PM2.5
NonattainmentSeriousPM-2.5 (1997 Standard)
Original designation: Apr 2005
Health effects (EPA): Cardiovascular disease, respiratory illness, premature death (EPA)
Data from EPA Green Book
Bethel Island
Annual mean: 0.3 ppm · EPA standard: 9 ppm
Reported: Mar 2026
Annual mean: 1.1 ppb · EPA standard: 75 ppb
Reported: Mar 2026
Annual mean: 9.1 ppb · EPA standard: 100 ppb
Reported: Mar 2026
Data from EPA AQS
Facilities regulated under the Clean Air Act. CAA HPV flags indicate serious noncompliance such as exceeding emission limits.
No facility records with active violation or noncompliance flags surfaced in EPA ECHO.
Reviewed: active/open records as of Q4 2025
Data from EPA ECHO
TRI releases are self-reported annual totals (calendar year 2024). Hover fugitive or stack for definitions.
7/11 Materials Inc
Reported: 2024
Contaminated sites, waste facilities, cleanup records, and industrial operations in this city.
Sites listed on the National Priorities List (NPL) where releases or threatened releases of hazardous substances may endanger public health or the environment, as designated under CERCLA.
Open data source: Search EPA ECHO· 110002147891
Reported: Nov 2021
Brownfield sites are properties where redevelopment is complicated by the presence of hazardous substances.
Open data source: Search EPA ECHONo matching brownfield records with active cleanup or investigation status surfaced for this city report.
Reviewed: active/open records as of Q1 2026
Facilities with hazardous-waste handler records under RCRA in the reviewed 5-mile city-center search area. Active handler status is separate from air, water, or other ECHO compliance violations, which are shown in their own sections.
Active RCRA handler records in the reviewed city search area
No underground storage tank records with active/open release status surfaced within 2 miles.
Data from EPA UST Finder
Toxic Release Inventory data — chemicals disposed on-site at reporting facilities.
Concrete Inc
Open data source: View EPA TRI facility recordFormerly Used Defense Sites are properties previously owned by, leased to, or otherwise possessed by the United States and under the jurisdiction of the Secretary of Defense. The FUDS program addresses environmental restoration at these properties.
Open data source: USACE FUDSReported: Jun 2026
Reported: Jun 2026
Reported: Jun 2026
San Joaquin County, CA
Reported: Mar 2026
San Joaquin County is EPA Radon Zone 3 (low potential). EPA defines Zone 3 counties as having predicted average indoor screening levels below 2 pCi/L.
Radon levels can vary from home to home, so EPA recommends testing the property to know its indoor level.
Flood-map status, chemical accident risk, nuclear facilities, pipeline incidents, and community health indicators in this city.
FEMA's National Flood Hazard Layer maps flood risk. Properties in a Special Flood Hazard Area are required to carry flood insurance if they have a federally backed mortgage.
Special Flood Hazard Area — 1% annual chance of flooding (100-year floodplain). No base flood elevation determined.
Risk Management Program facilities handle extremely hazardous substances (e.g., chlorine, ammonia, propane). EPA requires these facilities to plan for worst-case chemical releases.
No facility records with recent chemical accidents surfaced for this property within the last five years.
Data from EPA ECHO
PHMSA tracks incidents involving natural gas and hazardous liquid pipelines. Incidents include leaks, ruptures, and explosions.
No pipeline incident records surfaced for this city report in the last 5 years.
Reviewed: last 5 years
Data from PHMSA
Health outcomes from County Health Rankings. Values shown alongside state and national averages.
San Joaquin County, CaliforniaPop. 793,229
Reported: Mar 2026
Premature Death
Poor or Fair Health
Poor Physical Health Days
Poor Mental Health Days
Adult Smoking
Adult Obesity
Air Pollution - Particulate Matter
Drinking Water Violations
Diabetes Prevalence
Life Expectancy
| Indicator | County | State | National |
|---|---|---|---|
| Premature Death | 8,627 | 6,373 | 7,972 |
| Poor or Fair Health | 19.4% | 15.8% | 14.2% |
| Poor Physical Health Days | 3.7 | 3.1 | 3.3 |
| Poor Mental Health Days | 4.7 | 4.7 | 4.8 |
| Adult Smoking | 13.1% | 8.8% | 15.0% |
| Adult Obesity | 33.3% | 27.8% | 34.0% |
| Air Pollution - Particulate Matter | 9.8 | 7.1 | 7.3 |
| Drinking Water Violations | 1 | 1 | N/A |
| Diabetes Prevalence | 11.8% | 10.8% | 9.6% |
| Life Expectancy | 76.6 | 79.9 | 77.6 |