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Sonoma County, California: environmental and disease records

Cancer mortality in Sonoma County is 141.1 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 Brain & nervous system deaths at 1.4 times the U.S. rate. Federal databases place 2,395 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (856), Small hazardous waste generator (625), Industrial wastewater discharge (202). 2 correctional facilities operate in the county. EPA AirToxScreen estimates a lifetime cancer risk from outdoor air toxics of 30 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: 38.4811, -122.8559.

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 Sonoma County compared with the United States
CancerMeasureCounty rateU.S. rateTimes U.S.95% intervalYears
Melanoma of the skinNew cases42.923.81.8xSignificant40.6 to 45.32019-2023
ThyroidDeaths0.90.51.8xSignificant0.6 to 1.32020-2024
Brain & nervous systemDeaths64.41.36xSignificant5.1 to 6.92020-2024
Brain & nervous systemNew cases7.76.21.24xSignificant6.7 to 8.92019-2023
Melanoma of the skinDeaths2.321.15x1.9 to 32020-2024
StomachDeaths3.12.71.15x2.5 to 3.72020-2024
Non-Hodgkin lymphomaDeaths5.54.81.15x4.7 to 6.42020-2024
BladderNew cases20.918.71.12xSignificant19.4 to 22.52019-2023
Non-Hodgkin lymphomaNew cases20.318.51.1xSignificant18.8 to 222019-2023
LeukemiaNew cases15.914.51.1x14.5 to 17.32019-2023
BladderDeaths4.44.11.07x3.7 to 5.12020-2024
LeukemiaDeaths6.15.71.07x5.3 to 7.12020-2024
Liver & bile ductDeaths6.96.61.05x6.1 to 7.82020-2024
All cancerNew cases470.4453.41.04xSignificant462.9 to 4782019-2023
Liver & bile ductNew cases98.71.03x8.1 to 10.12019-2023
Childhood cancer (under 15)New cases16.916.41.03x13 to 21.62019-2023
StomachNew cases6.76.61.02x5.8 to 7.72019-2023
EsophagusNew cases4.64.61x3.9 to 5.42019-2023
All cancerDeaths141.1143.20.99x137.1 to 145.12020-2024
PancreasNew cases13.513.90.97x12.2 to 14.82019-2023
PancreasDeaths10.811.30.96x9.8 to 122020-2024
Kidney & renal pelvisDeaths3.23.40.94x2.6 to 3.92020-2024
EsophagusDeaths3.43.70.92x2.8 to 4.12020-2024
ThyroidNew cases11.5130.88x10.2 to 12.92019-2023
Kidney & renal pelvisNew cases15.817.90.88x14.5 to 17.32019-2023
Lung & bronchusDeaths22.430.20.74x20.9 to 242020-2024
Lung & bronchusNew cases37.651.80.73x35.6 to 39.72019-2023

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 Sonoma County
MeasureCountyU.S. medianDifferenceUnit
Premature death5,9979,842.6-39%years of life lost before age 75 per 100,000
Life expectancy80.675.3+7%years
Child mortality33.159.8-45%deaths under age 18 per 100,000
Infant mortality3.16.2-49%deaths under age 1 per 1,000 live births
Injury deaths65.796.9-32%deaths per 100,000
Drug overdose deaths29.128.6+2%deaths per 100,000

Air toxics and air quality

EPA AirToxScreen 2020

Lifetime cancer risk from outdoor air toxics: 30 in a million. EPA treats 100 in a million as the upper end of acceptable risk and 1 in a million as the goal.

  • Formaldehyde19.28 per million
  • Carbon Tetrachloride2.95 per million
  • Acetaldehyde2.7 per million
  • Naphthalene2.47 per million

EPA Air Quality Index 2025

Monitored on 365 days: 365 good, 0 unhealthy for sensitive groups or worse. Median AQI 9, peak 39.

Regulated facilities, sites and hazards by type

2,395 active records inside the county from EPA ECHO, TRI, Superfund, Brownfields, NPDES, EIA, FAA, FRA and corrections data.

  • NPDES wastewater discharge permit856
  • Small hazardous waste generator625
  • Industrial wastewater discharge202
  • Rail grade crossing192
  • Gas station (mapped facility)103
  • Large hazardous waste generator90
  • Auto repair or body shop (mapped facility)82
  • Hazardous waste transporter79
  • Brownfield property48
  • Dry cleaner (mapped facility)17
  • Major air pollution source16
  • Toxic chemical release facility (TRI)14
  • TRI reporting facility11
  • Wastewater plant (mapped facility)10
  • Solar power plant8
  • Public airport6
  • Landfill (mapped facility)6
  • Air permit holder (minor source)5
  • Geothermal plant5
  • EPA air quality monitor4
  • Heliport4
  • Biomass power plant4
  • Commercial airport2
  • Correctional facility (prison or jail)2
  • Scrapyard (mapped facility)2
  • Crematorium (mapped facility)1
  • Hydroelectric 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.

  1. Lgc Biosearch Technologies, Petaluma

    TRI reporting facility. Penalties $107,144.

    EPA FRS registry ID 110055425160 (U.S. EPA ECHO) Agency record

    Severity 8.5

  2. Lgc Biosearch Technologies Inc, Petaluma

    Toxic chemical release facility (TRI). Chemicals: Dichloromethane, Acetonitrile, Methanol, Toluene and 1 more. Reports carcinogens. 63,152 lbs released over 5 years.

    TRI facility ID 9495WLGCBS2199S (U.S. EPA Toxics Release Inventory)

    Severity 8.2

  3. Nick Barbieri Trucking Llc, Santa Rosa

    Toxic chemical release facility (TRI). Chemicals: Toluene, Xylene (mixed isomers), Polycyclic aromatic compounds, Ethylbenzene and 4 more. Reports carcinogens. 12,829 lbs released over 5 years.

    TRI facility ID 9540WNCKBR365TD (U.S. EPA Toxics Release Inventory)

    Severity 7.7

  4. Santa Rosa Water - Laguna Treatment Plant, Santa Rosa

    Major air pollution source. Penalties $56,000.

    EPA FRS registry ID 110000730460 (U.S. EPA ECHO) Agency record

    Severity 7.5

  5. Sonoma Central Landfill Phase Ii, Petaluma

    Major air pollution source. Penalties $189,000.

    EPA FRS registry ID 110043807681 (U.S. EPA ECHO) Agency record

    Severity 7.5

  6. Santa Rosa Water - Laguna Treatment Plant, Santa Rosa

    NPDES wastewater discharge permit. Penalties $56,000.

    EPA FRS registry ID 110000730460 (U.S. EPA ECHO) Agency record

    Severity 7

  7. Sonoma Central Landfill Phase Ii, Petaluma

    NPDES wastewater discharge permit. Penalties $189,000.

    EPA FRS registry ID 110043807681 (U.S. EPA ECHO) Agency record

    Severity 7

  8. Clover Stornetta Farms Inc, Petaluma

    TRI reporting facility.

    EPA FRS registry ID 110000484002 (U.S. EPA ECHO) Agency record

    Severity 6.5

  9. Agilent Technologies, Inc., Santa Rosa

    TRI reporting facility. Penalties $64,000.

    EPA FRS registry ID 110057331409 (U.S. EPA ECHO) Agency record

    Severity 6.2

  10. Lgc Biosearch Technologies, Petaluma

    Large hazardous waste generator. Penalties $107,144.

    EPA FRS registry ID 110055425160 (U.S. EPA ECHO) Agency record

    Severity 5.8

  11. Northgate Ready Mix, Windsor

    Toxic chemical release facility (TRI). Chemicals: Nitrate compounds (water dissociable; reportable only when in aqueous solution), Lead And Lead Compounds. 3,816 lbs released over 5 years.

    TRI facility ID 9549WNRTHG5922P (U.S. EPA Toxics Release Inventory)

    Severity 5.7

  12. Keysight Technologies Inc, Santa Rosa

    Toxic chemical release facility (TRI). Chemicals: N-Methyl-2-pyrrolidone, Nitric acid, Nitrate compounds (water dissociable; reportable only when in aqueous solution). 2,515 lbs released over 5 years.

    TRI facility ID 95401HWLTT1412F (U.S. EPA Toxics Release Inventory)

    Severity 5.6

  13. Northgate Ready Mix, Windsor

    TRI reporting facility.

    EPA FRS registry ID 110057106867 (U.S. EPA ECHO) Agency record

    Severity 5.6

  14. Royal Petroleum Company, Santa Rosa

    TRI reporting facility.

    EPA FRS registry ID 110010460651 (U.S. EPA ECHO) Agency record

    Severity 5.5

  15. Us Coast Guard Training Center Petaluma, Petaluma

    TRI reporting facility.

    EPA FRS registry ID 110002625311 (U.S. EPA ECHO) Agency record

    Severity 5.5

  16. Sonoma Central Landfill Phase Ii, Petaluma

    Small hazardous waste generator. Penalties $189,000.

    EPA FRS registry ID 110043807681 (U.S. EPA ECHO) Agency record

    Severity 5.5

  17. Perdue Foods Llc - Petaluma Poultry Processing Plant, Petaluma

    Toxic chemical release facility (TRI). Chemicals: Peracetic acid. 1,000 lbs released over 5 years.

    TRI facility ID 9495WPTLMP27LAK (U.S. EPA Toxics Release Inventory)

    Severity 5.3

  18. Perdue Foods Llc Dba Petaluma Poultry, Petaluma

    TRI reporting facility.

    EPA FRS registry ID 110070087650 (U.S. EPA ECHO) Agency record

    Severity 5.2

  19. Charles M Schulz/Sonoma County, Santa Rosa

    Commercial airport. O.

    Record ID STS (FAA / U.S. DOT)

    Severity 5

  20. Bodean Co Inc, Santa Rosa

    Toxic chemical release facility (TRI). Chemicals: Polycyclic aromatic compounds, Benzo[g,h,i]perylene. Reports carcinogens. 1 lbs released over 5 years.

    TRI facility ID 9540WBDNCN16MAX (U.S. EPA Toxics Release Inventory)

    Severity 4.8

  21. Scwa: Sonoma Valley Csdtp, Sonoma

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110002408671 (U.S. EPA ECHO) Agency record

    Severity 4.8

  22. Agilent Technologies, Inc., Santa Rosa

    Large hazardous waste generator. Penalties $64,000.

    EPA FRS registry ID 110057331409 (U.S. EPA ECHO) Agency record

    Severity 4.8

  23. Syar Industries, Santa Rosa

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

    TRI facility ID 9540WTDDRD26GHI (U.S. EPA Toxics Release Inventory)

    Severity 4.6

  24. Western Fiberglass Inc, Santa Rosa

    Major air pollution source. Penalties $1,000.

    EPA FRS registry ID 110001179554 (U.S. EPA ECHO) Agency record

    Severity 4.5

  25. U C Davis Bodega Marine Lab, Bodega Bay

    Large hazardous waste generator.

    EPA FRS registry ID 110010059435 (U.S. EPA ECHO) Agency record

    Severity 4.5

Correctional facilities

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

Discovery / public records

Records to request for Sonoma 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 Sonoma 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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