CA / county FIPS 06099 / county research

Stanislaus County, California: environmental and disease records

Cancer mortality in Stanislaus County is 153.2 deaths per 100,000 people per year against a U.S. rate of 143.2, a statistically significant excess. The strongest disease signals are Stomach deaths at 1.5 times the U.S. rate and Liver & bile duct deaths at 1.4 times the U.S. rate. Federal databases place 2,369 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (713), Small hazardous waste generator (463), Rail grade crossing (304). 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: 37.6139, -120.8713.

How this county ranks in California

View on the heat map Scan an address in this county

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 Stanislaus County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Stomach	Deaths	4.1	2.7	1.52xSignificant	3.4 to 4.9	2020-2024
Liver & bile duct	Deaths	9.3	6.6	1.41xSignificant	8.2 to 10.5	2020-2024
Liver & bile duct	New cases	11.4	8.7	1.31xSignificant	10.2 to 12.6	2019-2023
Stomach	New cases	8.1	6.6	1.23xSignificant	7.1 to 9.2	2019-2023
Thyroid	Deaths	0.6	0.5	1.2x	0.3 to 1	2020-2024
Kidney & renal pelvis	Deaths	4	3.4	1.18x	3.3 to 4.8	2020-2024
Bladder	Deaths	4.7	4.1	1.15x	3.9 to 5.6	2020-2024
Esophagus	Deaths	4.2	3.7	1.14x	3.4 to 5	2020-2024
Non-Hodgkin lymphoma	Deaths	5.3	4.8	1.1x	4.5 to 6.2	2020-2024
Melanoma of the skin	Deaths	2.2	2	1.1x	1.6 to 2.8	2020-2024
Thyroid	New cases	14.3	13	1.1x	12.9 to 15.8	2019-2023
All cancer	Deaths	153.2	143.2	1.07xSignificant	148.6 to 157.8	2020-2024
Brain & nervous system	Deaths	4.6	4.4	1.05x	3.8 to 5.4	2020-2024
Pancreas	Deaths	11.8	11.3	1.04x	10.5 to 13.1	2020-2024
Non-Hodgkin lymphoma	New cases	19.3	18.5	1.04x	17.7 to 21	2019-2023
Pancreas	New cases	14.4	13.9	1.04x	13.1 to 15.9	2019-2023
Kidney & renal pelvis	New cases	18.5	17.9	1.03x	17 to 20.2	2019-2023
Childhood cancer (under 15)	New cases	16.9	16.4	1.03x	13.8 to 20.6	2019-2023
Esophagus	New cases	4.5	4.6	0.98x	3.7 to 5.3	2019-2023
All cancer	New cases	432.8	453.4	0.95x	425.1 to 440.6	2019-2023
Leukemia	Deaths	5.4	5.7	0.95x	4.6 to 6.4	2020-2024
Melanoma of the skin	New cases	22.5	23.8	0.95x	20.8 to 24.4	2019-2023
Bladder	New cases	17.4	18.7	0.93x	15.9 to 19.1	2019-2023
Lung & bronchus	Deaths	26.3	30.2	0.87x	24.5 to 28.3	2020-2024
Leukemia	New cases	12.6	14.5	0.87x	11.3 to 14	2019-2023
Brain & nervous system	New cases	5.2	6.2	0.84x	4.4 to 6.1	2019-2023
Lung & bronchus	New cases	42.1	51.8	0.81x	39.8 to 44.6	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 Stanislaus County
Measure	County	U.S. median	Difference	Unit
Premature death	9,308.6	9,842.6	-5%	years of life lost before age 75 per 100,000
Life expectancy	75.4	75.3	+0%	years
Child mortality	45.2	59.8	-24%	deaths under age 18 per 100,000
Infant mortality	4.8	6.2	-22%	deaths under age 1 per 1,000 live births
Injury deaths	70.8	96.9	-27%	deaths per 100,000
Drug overdose deaths	28.7	28.6	+0%	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.

Formaldehyde25.58 per million
Carbon Tetrachloride2.96 per million
Acetaldehyde2.78 per million
Benzene1.65 per million

EPA Air Quality Index 2025

Monitored on 365 days: 182 good, 3 unhealthy for sensitive groups or worse. Median AQI 51, peak 115.

Regulated facilities, sites and hazards by type

2,369 active records inside the county from EPA ECHO, TRI, Superfund, Brownfields, NPDES, EIA, FAA, FRA and corrections data.

NPDES wastewater discharge permit713
Small hazardous waste generator463
Rail grade crossing304
Wastewater plant (mapped facility)156
Hazardous waste transporter153
Gas station (mapped facility)129
Large hazardous waste generator112
Industrial wastewater discharge111
Auto repair or body shop (mapped facility)57
Major air pollution source32
Toxic chemical release facility (TRI)29
TRI reporting facility24
Air permit holder (minor source)23
Scrapyard (mapped facility)11
Large greenhouse gas emitter10
Dry cleaner (mapped facility)7
Public airport6
Hydroelectric plant6
Gas power plant5
Solar power plant5
Superfund (NPL) site3
EPA air quality monitor2
Heliport2
Biomass power plant2
Commercial airport1
Brownfield property1
Crematorium (mapped facility)1
Landfill (mapped facility)1

Highest-severity records

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

Riverbank Army Ammunition Plant, Riverbank
Superfund (NPL) site. Hazard Ranking System score 63.9. NPL Site.
EPA site ID CA7210020759 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Valley Wood Preserving, Inc., Turlock
Superfund (NPL) site. Hazard Ranking System score 32. NPL Site.
EPA site ID CAD063020143 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Modesto Ground Water Contamination, Modesto
Superfund (NPL) site. Hazard Ranking System score 28.9. NPL Site.
EPA site ID CAD981997752 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Custom Marble And Onyx, Modesto
TRI reporting facility. Penalties $6,000.
EPA FRS registry ID 110017403022 (U.S. EPA ECHO) Agency record
Severity 9.5
Gallo Glass Company, Modesto
TRI reporting facility. Penalties $660,427.
EPA FRS registry ID 110000485270 (U.S. EPA ECHO) Agency record
Severity 8.6
Sonoco Metal Packaging, Llc, Oakdale
TRI reporting facility. Penalties $37,250.
EPA FRS registry ID 110000485332 (U.S. EPA ECHO) Agency record
Severity 8.5
Silgan Container Manufacturing Corp., Riverbank
Toxic chemical release facility (TRI). Chemicals: Xylene (mixed isomers), Certain glycol ethers, n-Butyl alcohol, Ethylbenzene and 1 more. Reports carcinogens. 69,576 lbs released over 5 years.
TRI facility ID 95367SLGNC3250P (U.S. EPA Toxics Release Inventory)
Severity 8.2
Frito-Lay Inc, Modesto
TRI reporting facility. Penalties $53,050.
EPA FRS registry ID 110002148104 (U.S. EPA ECHO) Agency record
Severity 8.2
California Dairies Inc Turlock, Turlock
TRI reporting facility. Penalties $103,830.
EPA FRS registry ID 110000529303 (U.S. EPA ECHO) Agency record
Severity 8
Thunderbolt Wood Treating, Riverbank
Toxic chemical release facility (TRI). Chemicals: Ammonia, Chromium, Arsenic, Copper. Reports carcinogens. 24,611 lbs released over 5 years.
TRI facility ID 95367THNDR34PAT (U.S. EPA Toxics Release Inventory)
Severity 7.9
Darling Ingredients Inc, Crows Landing
TRI reporting facility. Penalties $99,500.
EPA FRS registry ID 110000485056 (U.S. EPA ECHO) Agency record
Severity 7.8
Custom Marble & Onyx, Modesto
Toxic chemical release facility (TRI). Chemicals: Styrene. Reports carcinogens. 15,758 lbs released over 5 years.
TRI facility ID 95358CSTMM21WIN (U.S. EPA Toxics Release Inventory)
Severity 7.7
Silgan Containers, Riverbank, Riverbank
TRI reporting facility. Penalties $25,000.
EPA FRS registry ID 110000485369 (U.S. EPA ECHO) Agency record
Severity 7.7
Conagra Foods Packaged Foods Llc., Oakdale
TRI reporting facility. Penalties $126,218.
EPA FRS registry ID 110002408608 (U.S. EPA ECHO) Agency record
Severity 7.6
Gallo Glass Company, Modesto
Major air pollution source. Penalties $660,427.
EPA FRS registry ID 110000485270 (U.S. EPA ECHO) Agency record
Severity 7.5
Reworld Stanislaus County Resource Recovery Facilty - Landfill, Crows Landing
Major air pollution source. Penalties $116,665.
EPA FRS registry ID 110000514676 (U.S. EPA ECHO) Agency record
Severity 7.5
California Dairies Inc Turlock, Turlock
Major air pollution source. Penalties $103,830.
EPA FRS registry ID 110000529303 (U.S. EPA ECHO) Agency record
Severity 7.5
Fink Road Landfill, Crows Landing
Major air pollution source. Penalties $3,000.
EPA FRS registry ID 110012694281 (U.S. EPA ECHO) Agency record
Severity 7.5
Custom Marble And Onyx, Modesto
Major air pollution source. Penalties $6,000.
EPA FRS registry ID 110017403022 (U.S. EPA ECHO) Agency record
Severity 7.5
E & J Gallo Winery & Brandy, Modesto
Major air pollution source. Penalties $165,000.
EPA FRS registry ID 110022308670 (U.S. EPA ECHO) Agency record
Severity 7.5
Southern Counties Oil Co. Lp D.B.A. Sc Fuels, Modesto
Toxic chemical release facility (TRI). Chemicals: Xylene (mixed isomers), Toluene, 1,2,4-Trimethylbenzene, Benzene and 4 more. Reports carcinogens. 5,434 lbs released over 5 years.
TRI facility ID 9535WMDSTF237EA (U.S. EPA Toxics Release Inventory)
Severity 7.4
Blue Diamond Growers, Modesto
Toxic chemical release facility (TRI). Chemicals: Sulfuryl fluoride. 181,908 lbs released over 5 years.
TRI facility ID 95356BLDMN48SIS (U.S. EPA Toxics Release Inventory)
Severity 7
Enviro Tech Chemical Services Inc., Modesto
Toxic chemical release facility (TRI). Chemicals: Peracetic acid, Methanol, Copper compounds, Nitric acid and 2 more. Reports carcinogens. 2,010 lbs released over 5 years.
TRI facility ID 95357NVRTC500WI (U.S. EPA Toxics Release Inventory)
Severity 7
Gallo Glass Company, Modesto
Large hazardous waste generator. Penalties $660,427.
EPA FRS registry ID 110000485270 (U.S. EPA ECHO) Agency record
Severity 7
Gallo Glass Company, Modesto
NPDES wastewater discharge permit. Penalties $660,427.
EPA FRS registry ID 110000485270 (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.

No correctional facility with an EPA record is located in this county.

Discovery / public records

Records to request for Stanislaus 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 Stanislaus 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.

Scan an address in Stanislaus County View on the heat map All California counties