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Yolo County, California: environmental and disease records

Cancer mortality in Yolo County is 137.4 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 1,542 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (462), Brownfield property (325), Small hazardous waste generator (278). 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: 38.6195, -121.8539.

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 Yolo County compared with the United States
CancerMeasureCounty rateU.S. rateTimes U.S.95% intervalYears
Non-Hodgkin lymphomaDeaths64.81.25x4.7 to 7.72020-2024
Melanoma of the skinNew cases29.623.81.24xSignificant26.4 to 33.12019-2023
Non-Hodgkin lymphomaNew cases2318.51.24xSignificant20.2 to 26.12019-2023
Childhood cancer (under 15)New cases18.516.41.13x12.8 to 25.92019-2023
StomachDeaths32.71.11x2 to 4.22020-2024
EsophagusNew cases5.14.61.11x3.8 to 6.62019-2023
Kidney & renal pelvisNew cases19.217.91.07x16.7 to 22.12019-2023
Brain & nervous systemDeaths4.64.41.05x3.4 to 6.12020-2024
Brain & nervous systemNew cases6.46.21.03x5 to 8.22019-2023
Liver & bile ductNew cases8.78.71x7.1 to 10.72019-2023
PancreasNew cases13.913.91x11.8 to 16.42019-2023
ThyroidNew cases12.9130.99x10.8 to 15.32019-2023
LeukemiaDeaths5.65.70.98x4.3 to 7.22020-2024
All cancerNew cases440.9453.40.97x428.3 to 453.82019-2023
All cancerDeaths137.4143.20.96x130.5 to 144.62020-2024
Kidney & renal pelvisDeaths3.23.40.94x2.2 to 4.52020-2024
Liver & bile ductDeaths6.26.60.94x4.8 to 7.82020-2024
StomachNew cases6.26.60.94x4.8 to 82019-2023
BladderNew cases17.518.70.94x15.1 to 20.32019-2023
PancreasDeaths10.511.30.93x8.7 to 12.62020-2024
BladderDeaths3.84.10.93x2.7 to 5.22020-2024
Melanoma of the skinDeaths1.820.9x1.1 to 2.82020-2024
EsophagusDeaths3.13.70.84x2.2 to 4.32020-2024
LeukemiaNew cases11.614.50.8x9.6 to 13.92019-2023
Lung & bronchusDeaths24.130.20.8x21.2 to 27.22020-2024
Lung & bronchusNew cases40.751.80.79x37 to 44.72019-2023

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 Yolo County
MeasureCountyU.S. medianDifferenceUnit
Premature death5,7289,842.6-42%years of life lost before age 75 per 100,000
Life expectancy79.975.3+6%years
Child mortality2859.8-53%deaths under age 18 per 100,000
Infant mortality3.16.2-51%deaths under age 1 per 1,000 live births
Injury deaths51.396.9-47%deaths per 100,000
Drug overdose deaths16.728.6-42%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.

  • Formaldehyde27.01 per million
  • Acetaldehyde3.46 per million
  • Carbon Tetrachloride2.97 per million
  • Naphthalene2.93 per million

EPA Air Quality Index 2025

Monitored on 365 days: 213 good, 0 unhealthy for sensitive groups or worse. Median AQI 47, peak 100.

Regulated facilities, sites and hazards by type

1,542 active records inside the county from EPA ECHO, TRI, Superfund, Brownfields, NPDES, EIA, FAA, FRA and corrections data.

  • NPDES wastewater discharge permit462
  • Brownfield property325
  • Small hazardous waste generator278
  • Rail grade crossing134
  • Gas station (mapped facility)71
  • Industrial wastewater discharge70
  • Large hazardous waste generator66
  • Hazardous waste transporter39
  • Auto repair or body shop (mapped facility)23
  • Air permit holder (minor source)9
  • Toxic chemical release facility (TRI)9
  • Major air pollution source8
  • Public airport7
  • Solar power plant7
  • Wastewater plant (mapped facility)7
  • TRI reporting facility5
  • Large greenhouse gas emitter4
  • EPA air quality monitor3
  • Heliport3
  • Landfill (mapped facility)3
  • Commercial airport2
  • Correctional facility (prison or jail)2
  • Biomass power plant2
  • Dry cleaner (mapped facility)1
  • Wind power plant1
  • Superfund (NPL) site1

Highest-severity records

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

  1. Frontier Fertilizer, Davis

    Superfund (NPL) site. Hazard Ranking System score 35. NPL Site.

    EPA site ID CAD071530380 (U.S. EPA Superfund (SEMS/NPL)) Agency record

    Severity 10

  2. Truck Accessories Group Dba Tag West, Woodland

    Toxic chemical release facility (TRI). Chemicals: Styrene, Xylene (mixed isomers), Toluene. Reports carcinogens. 281,350 lbs released over 5 years.

    TRI facility ID 95695LRWST1686E (U.S. EPA Toxics Release Inventory)

    Severity 8.7

  3. Uc Davis Wwtp, Davis

    NPDES wastewater discharge permit. Penalties $9,000.

    EPA FRS registry ID 110064609437 (U.S. EPA ECHO) Agency record

    Severity 6.8

  4. Equilon Enterprises Llc West Sacramento Terminal, West Sacramento

    Toxic chemical release facility (TRI). Chemicals: Xylene (mixed isomers), Toluene, 1,2,4-Trimethylbenzene, Benzene and 4 more. Reports carcinogens. 308 lbs released over 5 years.

    TRI facility ID 95691QLNNT1509S (U.S. EPA Toxics Release Inventory)

    Severity 6.4

  5. Watts Regulator Co., Woodland

    Toxic chemical release facility (TRI). Chemicals: Chromium, Nickel, Manganese, Diisocyanates. Reports carcinogens. 178 lbs released over 5 years.

    TRI facility ID 9577WMSFRW1485T (U.S. EPA Toxics Release Inventory)

    Severity 6.2

  6. Woodland-Gibson Road, Woodland

    EPA air quality monitor.

    Record ID 061131003 (U.S. EPA AirData)

    Severity 6.1

  7. Truck Accessories Group, Woodland

    Major air pollution source.

    EPA FRS registry ID 110000485895 (U.S. EPA ECHO) Agency record

    Severity 4.8

  8. Woodland Wpcf, Woodland

    NPDES wastewater discharge permit. Penalties $45,000.

    EPA FRS registry ID 110039782349 (U.S. EPA ECHO) Agency record

    Severity 4.8

  9. Ames Fire & Waterworks, Woodland

    TRI reporting facility.

    EPA FRS registry ID 110002854313 (U.S. EPA ECHO) Agency record

    Severity 4.7

  10. Veritiv Operating Co - Ca515 West Sacramento, West Sacramento

    Toxic chemical release facility (TRI). Chemicals: Diisocyanates. 133 lbs released over 5 years.

    TRI facility ID 9569WVRTVP351CA (U.S. EPA Toxics Release Inventory)

    Severity 4.6

  11. Veritiv Operating Company, West Sacramento

    TRI reporting facility.

    EPA FRS registry ID 110070486610 (U.S. EPA ECHO) Agency record

    Severity 4.6

  12. Pavestone - Winters Ca Plant, Winters

    Toxic chemical release facility (TRI). Chemicals: Lead. Reports carcinogens.

    TRI facility ID 9569WPVSTN276CU (U.S. EPA Toxics Release Inventory)

    Severity 4.6

  13. Woodland Plant, Woodland

    Toxic chemical release facility (TRI). Chemicals: Polycyclic aromatic compounds. Reports carcinogens.

    TRI facility ID 95695WDLND353CU (U.S. EPA Toxics Release Inventory)

    Severity 4.5

  14. Davis Water Pollution Control Plant, Davis

    NPDES wastewater discharge permit. Penalties $24,000.

    EPA FRS registry ID 110000717742 (U.S. EPA ECHO) Agency record

    Severity 4.5

  15. Costco Wholesale No 1003, Woodland

    Small hazardous waste generator.

    EPA FRS registry ID 110032963201 (U.S. EPA ECHO) Agency record

    Severity 4.5

  16. Truck Accessories Group, Woodland

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110000485895 (U.S. EPA ECHO) Agency record

    Severity 4.3

  17. Nor-Cal Beverage Co Inc, West Sacramento

    Toxic chemical release facility (TRI). Chemicals: Nitric acid, Nitrate compounds (water dissociable; reportable only when in aqueous solution). 20 lbs released over 5 years.

    TRI facility ID 95691NRCLB2286S (U.S. EPA Toxics Release Inventory)

    Severity 4

  18. Farmers Rice Coop, West Sacramento

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110000485840 (U.S. EPA ECHO) Agency record

    Severity 4

  19. Evergreen Oil Inc Davis, Davis

    Large hazardous waste generator. Penalties $5,000.

    EPA FRS registry ID 110008278149 (U.S. EPA ECHO) Agency record

    Severity 4

  20. Costco Wholesale No 1003, Woodland

    Air permit holder (minor source).

    EPA FRS registry ID 110032963201 (U.S. EPA ECHO) Agency record

    Severity 4

  21. Western Woodtreating Inc, Woodland

    TRI reporting facility.

    EPA FRS registry ID 110055893412 (U.S. EPA ECHO) Agency record

    Severity 4

  22. Best Overnite Express Inc, West Sacramento

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110058269387 (U.S. EPA ECHO) Agency record

    Severity 4

  23. Cemex Construction Materials Pacific Llc, West Sacramento

    TRI reporting facility.

    EPA FRS registry ID 110060257243 (U.S. EPA ECHO) Agency record

    Severity 4

  24. Washington Sch Dist Maint Tr, West Sacramento

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110070089053 (U.S. EPA ECHO) Agency record

    Severity 4

  25. Pavestone Company, Winters

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110070089068 (U.S. EPA ECHO) Agency record

    Severity 4

Correctional facilities

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

  • Chemistry Seismic And Life Safety Corrections, Davis

    EPA FRS registry ID
    x6b2bceccf2a1c7848009194e11ebc7af
    Wastewater permit
    Yes

    EPA detailed facility report

  • Walker Hall Renewal & Seismic Corrections, Davis

    EPA FRS registry ID
    x9064b0cde830e42791a394e7f3e0d7a2
    Wastewater permit
    Yes

    EPA detailed facility report

Discovery / public records

Records to request for Yolo 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 Yolo 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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