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Garfield County, Washington: environmental and disease records

Cancer mortality in Garfield County is 138.6 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 11 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (7), EPA air quality monitor (1), Public airport (1). 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: 46.3609, -117.5472.

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 Garfield County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
All cancer	Deaths	138.6	143.2	0.97x	88.7 to 211.4	2020-2024
All cancer	New cases	336.7	453.4	0.74x	245.5 to 453.1	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 Garfield County
Measure	County	U.S. median	Difference	Unit
Premature death	10,096.9	9,842.6	+3%	years of life lost before age 75 per 100,000
Life expectancy	77	75.3	+2%	years
Child mortality	n/a	59.8	n/a	deaths under age 18 per 100,000
Infant mortality	n/a	6.2	n/a	deaths under age 1 per 1,000 live births
Injury deaths	95.9	96.9	-1%	deaths per 100,000
Drug overdose deaths	n/a	28.6	n/a	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.

Formaldehyde14.51 per million
Carbon Tetrachloride2.79 per million
Acetaldehyde1.85 per million
Pahpom1.19 per million

EPA Air Quality Index 2025

Monitored on 347 days: 321 good, 0 unhealthy for sensitive groups or worse. Median AQI 19, peak 97.

Regulated facilities, sites and hazards by type

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

NPDES wastewater discharge permit7
EPA air quality monitor1
Public airport1
Heliport1
Wind 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.

Pomeroy Sewage Treatment Plant, Pomeroy
NPDES wastewater discharge permit. Penalties $901.
EPA FRS registry ID 110013746848 (U.S. EPA ECHO) Agency record
Severity 5.5
Tucannon Hatchery, Pomeroy
NPDES wastewater discharge permit.
EPA FRS registry ID 110015467289 (U.S. EPA ECHO) Agency record
Severity 4.5
Gould City-Mayview Road Phase Iv, Pomeroy
NPDES wastewater discharge permit.
EPA FRS registry ID 110071179418 (U.S. EPA ECHO) Agency record
Severity 2.5
Appaloosa Solar Project, Peyton
NPDES wastewater discharge permit.
EPA FRS registry ID 110071953085 (U.S. EPA ECHO) Agency record
Severity 2.5
Lsr O&M Roads Krn Krs Tuc E And Oli, Pomeroy
NPDES wastewater discharge permit.
EPA FRS registry ID 110072182707 (U.S. EPA ECHO) Agency record
Severity 1.8
Peola Road Phase Ii, Pomeroy
NPDES wastewater discharge permit.
EPA FRS registry ID 110070081291 (U.S. EPA ECHO) Agency record
Severity 1.5
Wsdot Qs-Ga-68 Dixon Quarry, Pomeroy
NPDES wastewater discharge permit.
EPA FRS registry ID 110071180725 (U.S. EPA ECHO) Agency record
Severity 1.5
Lower Snake River Wind Energy Project, Pomeroy
Wind power plant.
Record ID 57195 (U.S. Energy Information Administration)
Severity 0.8
Dye Seed Ranch Inc, Pomeroy
Public airport. O.
Record ID 58WA (FAA / U.S. DOT)
Severity 0.5
Lower Granite Dam, Colfax
Heliport. O.
Record ID WN43 (FAA / U.S. DOT)
Severity 0.5
Pomeroy Sewage Treatment Plant, Pomeroy
EPA air quality monitor.
Record ID 530230001 (U.S. EPA AirData)
Severity 0

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 Garfield 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 Garfield 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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