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Chelan County, Washington: environmental and disease records

Cancer mortality in Chelan County is 139.1 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 408 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (141), Rail grade crossing (138), Gas station (mapped facility) (41). EPA AirToxScreen estimates a lifetime cancer risk from outdoor air toxics of 20 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: 47.9071, -120.5422.

How this county ranks in Washington

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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 Chelan County compared with the United States
CancerMeasureCounty rateU.S. rateTimes U.S.95% intervalYears
Melanoma of the skinDeaths3.121.55x1.8 to 5.12020-2024
Childhood cancer (under 15)New cases23.516.41.43x13.9 to 37.32019-2023
Melanoma of the skinNew cases32.723.81.37xSignificant27.8 to 38.22019-2023
Brain & nervous systemDeaths5.94.41.34x3.9 to 8.62020-2024
PancreasDeaths1411.31.24x11.1 to 17.52020-2024
LeukemiaDeaths75.71.23x4.9 to 9.82020-2024
BladderNew cases22.418.71.2x18.6 to 26.82019-2023
StomachNew cases7.96.61.2x5.7 to 10.82019-2023
EsophagusDeaths4.43.71.19x2.9 to 6.52020-2024
Non-Hodgkin lymphomaDeaths5.64.81.17x3.8 to 82020-2024
Brain & nervous systemNew cases6.96.21.11x4.7 to 9.92019-2023
StomachDeaths32.71.11x1.7 to 52020-2024
EsophagusNew cases54.61.09x3.4 to 7.32019-2023
ThyroidNew cases14.1131.08x10.6 to 18.32019-2023
Non-Hodgkin lymphomaNew cases19.918.51.08x16 to 24.52019-2023
PancreasNew cases14.513.91.04x11.5 to 18.22019-2023
LeukemiaNew cases15.114.51.04x11.8 to 192019-2023
All cancerNew cases467.5453.41.03x448.8 to 486.92019-2023
All cancerDeaths139.1143.20.97x129.5 to 149.42020-2024
Liver & bile ductNew cases7.88.70.9x5.6 to 10.52019-2023
Lung & bronchusDeaths26.230.20.87x22.2 to 30.82020-2024
Liver & bile ductDeaths5.76.60.86x3.9 to 8.12020-2024
Lung & bronchusNew cases44.251.80.85x38.9 to 50.12019-2023
Kidney & renal pelvisNew cases14.317.90.8x11.1 to 18.12019-2023
BladderDeaths2.84.10.68x1.7 to 4.62020-2024

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 Chelan County
MeasureCountyU.S. medianDifferenceUnit
Premature death6,380.29,842.6-35%years of life lost before age 75 per 100,000
Life expectancy79.375.3+5%years
Child mortality41.859.8-30%deaths under age 18 per 100,000
Infant mortality4.26.2-32%deaths under age 1 per 1,000 live births
Injury deaths84.696.9-13%deaths per 100,000
Drug overdose deaths21.128.6-26%deaths per 100,000

Air toxics and air quality

EPA AirToxScreen 2020

Lifetime cancer risk from outdoor air toxics: 20 in a million. EPA treats 100 in a million as the upper end of acceptable risk and 1 in a million as the goal.

  • Formaldehyde12.07 per million
  • Carbon Tetrachloride2.82 per million
  • Acetaldehyde1.49 per million
  • Naphthalene1.24 per million

EPA Air Quality Index 2025

Monitored on 365 days: 254 good, 14 unhealthy for sensitive groups or worse. Median AQI 35, peak 233.

Regulated facilities, sites and hazards by type

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

  • NPDES wastewater discharge permit141
  • Rail grade crossing138
  • Gas station (mapped facility)41
  • Auto repair or body shop (mapped facility)31
  • Brownfield property11
  • Small hazardous waste generator10
  • Public airport5
  • Air permit holder (minor source)4
  • Toxic chemical release facility (TRI)4
  • EPA air quality monitor3
  • Large hazardous waste generator3
  • Hydroelectric plant3
  • TRI reporting facility3
  • Wastewater plant (mapped facility)3
  • Airfield2
  • Heliport2
  • Dry cleaner (mapped facility)1
  • Large greenhouse gas emitter1
  • Hazardous waste transporter1
  • Scrapyard (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.

  1. Pacific Aerospace & Electronics, Wenatchee

    Toxic chemical release facility (TRI). Chemicals: 1-Bromopropane, Nitric acid, 1,2-Butylene oxide, Cyanide compounds and 2 more. Reports carcinogens. 80,392 lbs released over 5 years.

    TRI facility ID 9880WSRPXX434LD (U.S. EPA Toxics Release Inventory)

    Severity 8.3

  2. Tree Top Inc Wenatchee, Wenatchee

    TRI reporting facility.

    EPA FRS registry ID 110000491138 (U.S. EPA ECHO) Agency record

    Severity 7.6

  3. Pacific Aerospace And Electronics, Wenatchee

    TRI reporting facility.

    EPA FRS registry ID 110060260453 (U.S. EPA ECHO) Agency record

    Severity 6.8

  4. Tree Top Inc Wenatchee Plant, Wenatchee

    Toxic chemical release facility (TRI). Chemicals: Nitrate compounds (water dissociable; reportable only when in aqueous solution). 14,317 lbs released over 5 years.

    TRI facility ID 98801TRTPN3981C (U.S. EPA Toxics Release Inventory)

    Severity 6.2

  5. Alcoa Wenatchee Works, Malaga

    Large hazardous waste generator.

    EPA FRS registry ID 110000491156 (U.S. EPA ECHO) Agency record

    Severity 6

  6. Alcoa Wenatchee Works, Malaga

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110000491156 (U.S. EPA ECHO) Agency record

    Severity 6

  7. Wenatchee Sand & Gravel, Wenatchee

    Toxic chemical release facility (TRI). Chemicals: Nitrate compounds (water dissociable; reportable only when in aqueous solution), Lead And Lead Compounds. 5,700 lbs released over 5 years.

    TRI facility ID 98801WNTCH1351S (U.S. EPA Toxics Release Inventory)

    Severity 5.9

  8. Wenatchee Sandg Batch Plant, Wenatchee

    TRI reporting facility.

    EPA FRS registry ID 110015488319 (U.S. EPA ECHO) Agency record

    Severity 5.7

  9. Alcoa Wenatchee Works, Malaga

    Large greenhouse gas emitter.

    EPA FRS registry ID 110000491156 (U.S. EPA ECHO) Agency record

    Severity 5.5

  10. Peshastin Hi-Up Growers, Peshastin

    NPDES wastewater discharge permit. Penalties $2,000.

    EPA FRS registry ID 110041623017 (U.S. EPA ECHO) Agency record

    Severity 5.5

  11. American Seafoods Company Llc - F/V American Triumph (Uscg No. 646737), Not Applicable

    NPDES wastewater discharge permit. Penalties $759,000.

    EPA FRS registry ID 110042370920 (U.S. EPA ECHO) Agency record

    Severity 5.5

  12. Northern Eagle Llc - F/T Northern Eagle (Uscg No. 506694), Unknown

    NPDES wastewater discharge permit. Penalties $240,000.

    EPA FRS registry ID 110042371153 (U.S. EPA ECHO) Agency record

    Severity 5.5

  13. Tree Top Inc Wenatchee, Wenatchee

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110000491138 (U.S. EPA ECHO) Agency record

    Severity 4.5

  14. Dolco Packaging Corp, Wenatchee

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110000546632 (U.S. EPA ECHO) Agency record

    Severity 4.5

  15. Blue Bird Wenatchee Plant, Wenatchee

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110000565718 (U.S. EPA ECHO) Agency record

    Severity 4.5

  16. Stemilt Growers Olds Station 2, Wenatchee

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110000565852 (U.S. EPA ECHO) Agency record

    Severity 4.5

  17. Keyes Fibre Corp Naumes Proc, Wenatchee

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110005311812 (U.S. EPA ECHO) Agency record

    Severity 4.5

  18. Chelan Cnty Pud 1 Wenatchee Ave, Wenatchee

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110005319887 (U.S. EPA ECHO) Agency record

    Severity 4.5

  19. Waste Management Greater Wenatchee, Wenatchee

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110005334272 (U.S. EPA ECHO) Agency record

    Severity 4.5

  20. Wenatchee Valley College, Wenatchee

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110005340899 (U.S. EPA ECHO) Agency record

    Severity 4.5

  21. Us Castings Llc, Entiat

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110005390219 (U.S. EPA ECHO) Agency record

    Severity 4.5

  22. Stevens Pass Stp, Leavenworth

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110009764291 (U.S. EPA ECHO) Agency record

    Severity 4.5

  23. Entiat Potw, Entiat

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110010896352 (U.S. EPA ECHO) Agency record

    Severity 4.5

  24. Peshastin Wastewater Treatment Plant, Peshastin

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110010896469 (U.S. EPA ECHO) Agency record

    Severity 4.5

  25. Mcdougall And Sons Olds Station, Wenatchee

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110015392706 (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.

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

Discovery / public records

Records to request for Chelan County

  • Washington 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 Chelan County, and their findings.

  • Washington vital statistics office

    Death certificate counts by cause of death and residence tract or ZIP code, and the years behind the mortality measures above.

  • Washington health department, environmental epidemiology

    Health consultations or assessments by ATSDR or the state health department covering the county, and any exposure investigations.

  • Washington 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.

  • Washington 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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