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San Joaquin County, California: environmental and disease records

Cancer mortality in San Joaquin County is 140.4 deaths per 100,000 people per year against a U.S. rate of 143.2. The strongest disease signals are Thyroid deaths at 1.8 times the U.S. rate and Liver & bile duct deaths at 1.3 times the U.S. rate. Federal databases place 3,699 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (1,259), Small hazardous waste generator (763), Rail grade crossing (443). 2 correctional facilities operate in the county. EPA AirToxScreen estimates a lifetime cancer risk from outdoor air toxics of 40 in a million, driven mainly by formaldehyde.

Rates are age-adjusted per 100,000 people. A cancer signal is marked significant when the lower bound of its 95 percent confidence interval is above the U.S. rate. Facility counts use active federal records located inside the county boundary. Approximate county center: 37.8916, -121.2476.

How this county ranks in California

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Cancer deaths and new cases versus the United States

Source: NCI and CDC State Cancer Profiles, both sexes, all ages. Sorted by the ratio of the county rate to the U.S. rate.

Cancer rates for San Joaquin County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Thyroid	Deaths	0.9	0.5	1.8xSignificant	0.6 to 1.2	2020-2024
Stomach	New cases	8.8	6.6	1.33xSignificant	7.9 to 9.8	2019-2023
Liver & bile duct	Deaths	8.7	6.6	1.32xSignificant	7.8 to 9.6	2020-2024
Liver & bile duct	New cases	11.4	8.7	1.31xSignificant	10.4 to 12.5	2019-2023
Stomach	Deaths	3.4	2.7	1.26xSignificant	2.8 to 4	2020-2024
Kidney & renal pelvis	Deaths	4.1	3.4	1.21xSignificant	3.5 to 4.7	2020-2024
Pancreas	Deaths	12.3	11.3	1.09x	11.2 to 13.4	2020-2024
Childhood cancer (under 15)	Deaths	2	1.9	1.05x	1.2 to 3.2	2020-2024
Bladder	Deaths	4.3	4.1	1.05x	3.7 to 5	2020-2024
Kidney & renal pelvis	New cases	18.4	17.9	1.03x	17.1 to 19.7	2019-2023
Pancreas	New cases	14	13.9	1.01x	12.9 to 15.2	2019-2023
All cancer	Deaths	140.4	143.2	0.98x	136.8 to 144.2	2020-2024
Non-Hodgkin lymphoma	Deaths	4.7	4.8	0.98x	4 to 5.4	2020-2024
Leukemia	Deaths	5.4	5.7	0.95x	4.7 to 6.2	2020-2024
Thyroid	New cases	12.2	13	0.94x	11.1 to 13.4	2019-2023
Brain & nervous system	Deaths	4	4.4	0.91x	3.4 to 4.6	2020-2024
Childhood cancer (under 15)	New cases	14.9	16.4	0.91x	12.4 to 17.7	2019-2023
Non-Hodgkin lymphoma	New cases	16.6	18.5	0.9x	15.4 to 18	2019-2023
All cancer	New cases	402.6	453.4	0.89x	396.3 to 408.8	2019-2023
Brain & nervous system	New cases	5.5	6.2	0.89x	4.8 to 6.3	2019-2023
Bladder	New cases	16.2	18.7	0.87x	15 to 17.5	2019-2023
Lung & bronchus	Deaths	24.6	30.2	0.81x	23.1 to 26.2	2020-2024
Leukemia	New cases	11.8	14.5	0.81x	10.7 to 12.9	2019-2023
Esophagus	New cases	3.7	4.6	0.8x	3.1 to 4.3	2019-2023
Esophagus	Deaths	2.9	3.7	0.78x	2.4 to 3.5	2020-2024
Lung & bronchus	New cases	40.1	51.8	0.77x	38.2 to 42.2	2019-2023
Melanoma of the skin	Deaths	1.5	2	0.75x	1.1 to 1.9	2020-2024
Melanoma of the skin	New cases	17.7	23.8	0.74x	16.4 to 19	2019-2023

Mortality measures versus the U.S. county median

Source: County Health Rankings, built from CDC National Vital Statistics System death records. The comparison value is the median of all U.S. counties.

Mortality measures for San Joaquin County
Measure	County	U.S. median	Difference	Unit
Premature death	8,729.5	9,842.6	-11%	years of life lost before age 75 per 100,000
Life expectancy	76.4	75.3	+2%	years
Child mortality	51.1	59.8	-14%	deaths under age 18 per 100,000
Infant mortality	5.3	6.2	-15%	deaths under age 1 per 1,000 live births
Injury deaths	72.6	96.9	-25%	deaths per 100,000
Drug overdose deaths	23.3	28.6	-19%	deaths per 100,000

Air toxics and air quality

EPA AirToxScreen 2020

Lifetime cancer risk from outdoor air toxics: 40 in a million. EPA treats 100 in a million as the upper end of acceptable risk and 1 in a million as the goal.

Formaldehyde24.48 per million
Carbon Tetrachloride2.97 per million
Acetaldehyde2.67 per million
Benzene1.8 per million

EPA Air Quality Index 2025

Monitored on 365 days: 219 good, 0 unhealthy for sensitive groups or worse. Median AQI 46, peak 93.

Regulated facilities, sites and hazards by type

3,699 active records inside the county from EPA ECHO, TRI, Superfund, Brownfields, NPDES, EIA, FAA, FRA and corrections data.

NPDES wastewater discharge permit1,259
Small hazardous waste generator763
Rail grade crossing443
Hazardous waste transporter217
Large hazardous waste generator182
Gas station (mapped facility)181
Industrial wastewater discharge164
Wastewater plant (mapped facility)137
Air permit holder (minor source)55
Major air pollution source53
Brownfield property53
Toxic chemical release facility (TRI)48
Auto repair or body shop (mapped facility)38
TRI reporting facility34
Large greenhouse gas emitter14
Public airport10
Gas power plant7
Dry cleaner (mapped facility)6
Solar power plant6
Heliport4
Landfill (mapped facility)4
Biomass power plant4
EPA air quality monitor3
Scrapyard (mapped facility)3
Superfund (NPL) site3
Commercial airport2
Correctional facility (prison or jail)2
Wind power plant2
Hydroelectric plant1
Other power plant1

Highest-severity records

The 25 records with the highest Envyrofax severity in the county, with the agency identifier to cite in a records request.

Tracy Defense Depot (USARMY), Tracy
Superfund (NPL) site. Hazard Ranking System score 37.2. NPL Site.
EPA site ID CA4971520834 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Sharpe Army Depot, Lathrop
Superfund (NPL) site. Hazard Ranking System score 42.2. NPL Site.
EPA site ID CA8210020832 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
McCormick & Baxter Creosoting Co., Stockton
Superfund (NPL) site. Hazard Ranking System score 74.9. NPL Site.
EPA site ID CAD009106527 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
J.R. Simplot Company, Lathrop
TRI reporting facility. Penalties $469,200.
EPA FRS registry ID 110000485109 (U.S. EPA ECHO) Agency record
Severity 9.9
Owens-Brockway Glass Container Tracy, Tracy
TRI reporting facility. Penalties $4,299,040.
EPA FRS registry ID 110000485421 (U.S. EPA ECHO) Agency record
Severity 9.2
Woodbridge Winery, Acampo
TRI reporting facility. Penalties $183,000.
EPA FRS registry ID 110000484967 (U.S. EPA ECHO) Agency record
Severity 8.4
J R Simplot Co Lathrop, Lathrop
Toxic chemical release facility (TRI). Chemicals: Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia, Diisocyanates, Zinc compounds and 4 more. Reports carcinogens. 67,876 lbs released over 5 years.
TRI facility ID 95330FRSMP16777 (U.S. EPA Toxics Release Inventory)
Severity 8.2
Owens-Brockway Glass Container Inc Plant #22, Tracy
Toxic chemical release facility (TRI). Chemicals: Ammonia, Nickel compounds, Lead And Lead Compounds, Nickel And Nickel Compounds and 3 more. Reports carcinogens. 28,181 lbs released over 5 years.
TRI facility ID 95376WNSLL14700 (U.S. EPA Toxics Release Inventory)
Severity 7.9
Tesoro - Stockton Terminal, Stockton
Toxic chemical release facility (TRI). Chemicals: Xylene (mixed isomers), Toluene, Cyclohexane, 1,2,4-Trimethylbenzene and 4 more. Reports carcinogens. 9,226 lbs released over 5 years.
TRI facility ID 9520WTSRLG33NAV (U.S. EPA Toxics Release Inventory)
Severity 7.5
Woodbridge Winery, Acampo
Major air pollution source. Penalties $183,000.
EPA FRS registry ID 110000484967 (U.S. EPA ECHO) Agency record
Severity 7.5
J.R. Simplot Company, Lathrop
Major air pollution source. Penalties $469,200.
EPA FRS registry ID 110000485109 (U.S. EPA ECHO) Agency record
Severity 7.5
Forward Inc Landfill, Manteca
Major air pollution source. Penalties $10,000.
EPA FRS registry ID 110000610116 (U.S. EPA ECHO) Agency record
Severity 7.5
Ameresco San Joaquin Llc, Linden
Major air pollution source. Penalties $23,000.
EPA FRS registry ID 110012694012 (U.S. EPA ECHO) Agency record
Severity 7.5
Barbosa Cabinets, Tracy
Major air pollution source. Penalties $15,868.
EPA FRS registry ID 110022527988 (U.S. EPA ECHO) Agency record
Severity 7.5
Regional Wastewater Control Facility, Stockton
Major air pollution source. Penalties $337,510.
EPA FRS registry ID 110040980034 (U.S. EPA ECHO) Agency record
Severity 7.5
Pelican Renewables, Llc, Stockton
Major air pollution source. Penalties $20,500.
EPA FRS registry ID 110070090716 (U.S. EPA ECHO) Agency record
Severity 7.5
Us Doe Llnl Experimental Test Site (Site 300), Tracy
Toxic chemical release facility (TRI). Chemicals: Lead. Reports carcinogens. 4,658 lbs released over 5 years.
TRI facility ID 95376SDLLN15999 (U.S. EPA Toxics Release Inventory)
Severity 7.3
Schuff Steel Company, Stockton
TRI reporting facility.
EPA FRS registry ID 110000484896 (U.S. EPA ECHO) Agency record
Severity 7.3
Barrel Ten Quarter Circle, Escalon
Major air pollution source. Penalties $60,450.
EPA FRS registry ID 110065507963 (U.S. EPA ECHO) Agency record
Severity 7.3
Tesoro Stockton Terminal, Stockton
TRI reporting facility. Penalties $16,500.
EPA FRS registry ID 110060280672 (U.S. EPA ECHO) Agency record
Severity 7.2
Woodbridge Winery, Acampo
NPDES wastewater discharge permit. Penalties $183,000.
EPA FRS registry ID 110000484967 (U.S. EPA ECHO) Agency record
Severity 7
J.R. Simplot Company, Lathrop
Large hazardous waste generator. Penalties $469,200.
EPA FRS registry ID 110000485109 (U.S. EPA ECHO) Agency record
Severity 7
J.R. Simplot Company, Lathrop
NPDES wastewater discharge permit. Penalties $469,200.
EPA FRS registry ID 110000485109 (U.S. EPA ECHO) Agency record
Severity 7
Owens-Brockway Glass Container Tracy, Tracy
Major air pollution source. Penalties $4,299,040.
EPA FRS registry ID 110000485421 (U.S. EPA ECHO) Agency record
Severity 7
Ameresco San Joaquin Llc, Linden
NPDES wastewater discharge permit. Penalties $23,000.
EPA FRS registry ID 110012694012 (U.S. EPA ECHO) Agency record
Severity 7

Correctional facilities

Prisons, jails and corrections operations with an EPA facility record, and the drinking water and wastewater compliance attached to them.

California Dept Of Corrections & Rehab, Stockton
EPA FRS registry ID
110043652320
Wastewater permit
None on record
EPA detailed facility report
San Joaquin Co Correctional Health Care, French Camp
EPA FRS registry ID
110070488625
Wastewater permit
None on record
EPA detailed facility report

Discovery / public records

Records to request for San Joaquin County

California state cancer registry
Cancer incidence counts by census tract or ZIP code, by cancer type and year (de-identified). Any cancer cluster inquiries or investigations in San Joaquin County, and their findings.
California vital statistics office
Death certificate counts by cause of death and residence tract or ZIP code, and the years behind the mortality measures above.
California health department, environmental epidemiology
Health consultations or assessments by ATSDR or the state health department covering the county, and any exposure investigations.
California environmental agency and the U.S. EPA regional office
Compliance history, inspection reports, notices of violation, penalties and enforcement actions for each facility above, cited by EPA FRS registry ID.
California drinking water program
Violation notices, sampling results and sanitary surveys for the public water systems serving the county, including any system serving a correctional facility.
Department of corrections or county sheriff
Water testing, grievances and environmental health inspections for the correctional facilities listed above.

Each Envyrofax address report includes a printable records request worksheet with the custodian and the exact request wording per finding.

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