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Apache County, Arizona: environmental and disease records

Cancer mortality in Apache County is 135.4 deaths per 100,000 people per year against a U.S. rate of 143.2. The strongest disease signals are Stomach deaths at 2.7 times the U.S. rate. Federal databases place 670 regulated facilities, sites and hazards inside the county, led by Industrial wastewater discharge (242), NPDES wastewater discharge permit (242), Rail grade crossing (48). EPA AirToxScreen estimates a lifetime cancer risk from outdoor air toxics of 10 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: 35.2366, -109.445.

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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 Apache County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Stomach	Deaths	7.2	2.7	2.67xSignificant	4.7 to 10.7	2020-2024
Stomach	New cases	11.6	6.6	1.76xSignificant	8.2 to 15.8	2019-2023
Kidney & renal pelvis	New cases	26.7	17.9	1.49xSignificant	21.5 to 32.8	2019-2023
Kidney & renal pelvis	Deaths	4.5	3.4	1.32x	2.6 to 7.4	2020-2024
Esophagus	Deaths	4.4	3.7	1.19x	2.5 to 7.3	2020-2024
Non-Hodgkin lymphoma	Deaths	5.5	4.8	1.15x	3.4 to 8.6	2020-2024
Pancreas	Deaths	12.3	11.3	1.09x	9 to 16.5	2020-2024
Liver & bile duct	Deaths	6.8	6.6	1.03x	4.4 to 10	2020-2024
Esophagus	New cases	4.5	4.6	0.98x	2.6 to 7.3	2019-2023
Thyroid	New cases	12.3	13	0.95x	8.6 to 17.1	2019-2023
All cancer	Deaths	135.4	143.2	0.95x	123.8 to 148	2020-2024
Leukemia	Deaths	5.2	5.7	0.91x	3 to 8.4	2020-2024
Liver & bile duct	New cases	7.3	8.7	0.84x	4.9 to 10.7	2019-2023
Leukemia	New cases	11.8	14.5	0.81x	8.5 to 16	2019-2023
Pancreas	New cases	10.9	13.9	0.78x	7.8 to 14.9	2019-2023
All cancer	New cases	322.3	453.4	0.71x	304.1 to 341.4	2019-2023
Non-Hodgkin lymphoma	New cases	12	18.5	0.65x	8.6 to 16.2	2019-2023
Melanoma of the skin	New cases	14.6	23.8	0.61x	11 to 19.1	2019-2023
Bladder	New cases	8.6	18.7	0.46x	5.9 to 12	2019-2023
Lung & bronchus	Deaths	13.2	30.2	0.44x	9.8 to 17.4	2020-2024
Lung & bronchus	New cases	16.7	51.8	0.32x	12.9 to 21.4	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 Apache County
Measure	County	U.S. median	Difference	Unit
Premature death	27,851.4	9,842.6	+183%	years of life lost before age 75 per 100,000
Life expectancy	63.8	75.3	-15%	years
Child mortality	85.6	59.8	+43%	deaths under age 18 per 100,000
Infant mortality	8.6	6.2	+38%	deaths under age 1 per 1,000 live births
Injury deaths	239.4	96.9	+147%	deaths per 100,000
Drug overdose deaths	39.4	28.6	+38%	deaths per 100,000

Air toxics and air quality

EPA AirToxScreen 2020

Lifetime cancer risk from outdoor air toxics: 10 in a million. EPA treats 100 in a million as the upper end of acceptable risk and 1 in a million as the goal.

Formaldehyde8.93 per million
Carbon Tetrachloride2.4 per million
Acetaldehyde0.5 per million
Pahpom0.3 per million

EPA Air Quality Index 2025

Monitored on 363 days: 313 good, 0 unhealthy for sensitive groups or worse. Median AQI 33, peak 100.

Regulated facilities, sites and hazards by type

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

Industrial wastewater discharge242
NPDES wastewater discharge permit242
Rail grade crossing48
Gas station (mapped facility)39
Wastewater plant (mapped facility)33
Brownfield property20
Small hazardous waste generator8
Air permit holder (minor source)6
Major air pollution source5
EPA air quality monitor4
Large greenhouse gas emitter4
Commercial airport3
Auto repair or body shop (mapped facility)2
Coal power plant2
TRI reporting facility2
Toxic chemical release facility (TRI)2
Airfield1
Public airport1
Large hazardous waste generator1
Hazardous waste transporter1
Heliport1
Biomass power plant1
Scrapyard (mapped facility)1
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.

Lukachukai Mountains Mining District, Cove, Navajo Nation
Superfund (NPL) site. Hazard Ranking System score 50. NPL Site.
EPA site ID NNN000920223 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Springerville Generating Station, Springerville
Toxic chemical release facility (TRI). Chemicals: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)), Manganese compounds, Vanadium compounds, Ammonia and 4 more. Reports carcinogens. 12,873,436 lbs released over 5 years.
TRI facility ID 85938SPRNG12MIL (U.S. EPA Toxics Release Inventory)
Severity 10
Coronado Generating Station, Saint Johns
Toxic chemical release facility (TRI). Chemicals: Barium And Barium Compounds, Barium compounds (except for barium sulfate (CAS No. 7727-43-7)), Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Vanadium compounds and 4 more. Reports carcinogens. 1,911,761 lbs released over 5 years.
TRI facility ID 85936CRNDG7MINE (U.S. EPA Toxics Release Inventory)
Severity 9.3
Springerville, Springerville
Coal power plant.
Record ID 8223 (U.S. Energy Information Administration)
Severity 7.6
Springerville Generating Station, Springerville
TRI reporting facility.
EPA FRS registry ID 110000600788 (U.S. EPA ECHO) Agency record
Severity 6.9
Coronado Generating Plant, St Johns
TRI reporting facility.
EPA FRS registry ID 110017431242 (U.S. EPA ECHO) Agency record
Severity 6.8
Coronado, St Johns
Coal power plant.
Record ID 6177 (U.S. Energy Information Administration)
Severity 6.8
Window Rock Wastewater Treatment Facility, Fort Defiance
NPDES wastewater discharge permit.
EPA FRS registry ID 110024409433 (U.S. EPA ECHO) Agency record
Severity 6
Williams Creek Hatchery - Us Fish & Wildlife Service, Mcnary
NPDES wastewater discharge permit.
EPA FRS registry ID 110024463953 (U.S. EPA ECHO) Agency record
Severity 4.5
Sunrise Hotel, Mcnary
NPDES wastewater discharge permit.
EPA FRS registry ID 110010062430 (U.S. EPA ECHO) Agency record
Severity 4.3
Sanders Unified School District #18 - Wwtp, Sanders
NPDES wastewater discharge permit.
EPA FRS registry ID 110037952490 (U.S. EPA ECHO) Agency record
Severity 4.3
Chinle Wwtf, Chinle
NPDES wastewater discharge permit.
EPA FRS registry ID 110010062680 (U.S. EPA ECHO) Agency record
Severity 4
Cyclone Day Lodge, Greer
NPDES wastewater discharge permit.
EPA FRS registry ID 110013683503 (U.S. EPA ECHO) Agency record
Severity 4
Coronado Generating Plant, St Johns
Major air pollution source.
EPA FRS registry ID 110017431242 (U.S. EPA ECHO) Agency record
Severity 3.8
Springerville Generating Station, Springerville
Major air pollution source.
EPA FRS registry ID 110000600788 (U.S. EPA ECHO) Agency record
Severity 3.5
El Paso Natural Gas Co-Window Rock, Window Rock
Major air pollution source.
EPA FRS registry ID 110008254110 (U.S. EPA ECHO) Agency record
Severity 3.5
Ganado Wwtp, Ganado
NPDES wastewater discharge permit.
EPA FRS registry ID 110010062591 (U.S. EPA ECHO) Agency record
Severity 3.5
Transwestern Pipeline Co., Compressor Station No. 4 - Klagetoh, Klagetoh
Major air pollution source.
EPA FRS registry ID 110010419378 (U.S. EPA ECHO) Agency record
Severity 3.5
El Paso Natural Gas Company Navajo Station, Greasewood
Major air pollution source.
EPA FRS registry ID 110010676296 (U.S. EPA ECHO) Agency record
Severity 3.5
Becker Petroleum, Springerville
Brownfield property.
EPA FRS registry ID 110002609703 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Springerville City Hall, Springerville
Brownfield property.
EPA FRS registry ID 110021005240 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Graves Propane, Saint Johns
Brownfield property.
EPA FRS registry ID 110039257513 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
St. Johns Cemetery Expansion, St. Johns
Brownfield property.
EPA FRS registry ID 110042112371 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
St. Johns City Hall, St. Johns
Brownfield property.
EPA FRS registry ID 110042112479 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
South Fork Cabins, Eagar
Brownfield property.
EPA FRS registry ID 110071965465 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3

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 Apache County

Arizona 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 Apache County, and their findings.
Arizona vital statistics office
Death certificate counts by cause of death and residence tract or ZIP code, and the years behind the mortality measures above.
Arizona health department, environmental epidemiology
Health consultations or assessments by ATSDR or the state health department covering the county, and any exposure investigations.
Arizona 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.
Arizona 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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