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Custer County, Oklahoma: environmental and disease records

Cancer mortality in Custer County is 166.1 deaths per 100,000 people per year against a U.S. rate of 143.2, a statistically significant excess. Federal databases place 540 regulated facilities, sites and hazards inside the county, led by Air permit holder (minor source) (317), Rail grade crossing (150), Gas station (mapped facility) (17). 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: 35.6351, -99.0045.

How this county ranks in Oklahoma

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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 Custer County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Kidney & renal pelvis	New cases	23.2	17.9	1.3x	15.9 to 32.8	2019-2023
All cancer	Deaths	166.1	143.2	1.16xSignificant	145.9 to 188.2	2020-2024
Thyroid	New cases	14.4	13	1.11x	8.5 to 22.7	2019-2023
Lung & bronchus	Deaths	33.4	30.2	1.11x	24.8 to 44.2	2020-2024
All cancer	New cases	421.8	453.4	0.93x	388.7 to 456.9	2019-2023
Lung & bronchus	New cases	43.5	51.8	0.84x	33.8 to 55.4	2019-2023
Bladder	New cases	15.5	18.7	0.83x	9.8 to 23.4	2019-2023
Melanoma of the skin	New cases	15.8	23.8	0.66x	10 to 23.8	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 Custer County
Measure	County	U.S. median	Difference	Unit
Premature death	10,914	9,842.6	+11%	years of life lost before age 75 per 100,000
Life expectancy	72.8	75.3	-3%	years
Child mortality	45.4	59.8	-24%	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	88.3	96.9	-9%	deaths per 100,000
Drug overdose deaths	15.3	28.6	-46%	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.

Formaldehyde16.96 per million
Carbon Tetrachloride2.81 per million
Acetaldehyde1.18 per million
Benzene0.73 per million

EPA Air Quality Index

No EPA air quality monitor reports daily AQI for this county.

Regulated facilities, sites and hazards by type

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

Air permit holder (minor source)317
Rail grade crossing150
Gas station (mapped facility)17
NPDES wastewater discharge permit11
Toxic chemical release facility (TRI)9
Major air pollution source6
TRI reporting facility6
Auto repair or body shop (mapped facility)4
Brownfield property4
Small hazardous waste generator4
Public airport3
Commercial airport2
Hazardous waste transporter2
Heliport2
Large greenhouse gas emitter1
Large hazardous waste generator1
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.

Miraclon Corp, Weatherford
Toxic chemical release facility (TRI). Chemicals: Toluene, Methyl isobutyl ketone. Reports carcinogens. 75,748 lbs released over 5 years.
TRI facility ID 7309WMRCLN272SU (U.S. EPA Toxics Release Inventory)
Severity 8.2
Arapaho Gas Processing Plt, Butler
Toxic chemical release facility (TRI). Chemicals: n-Hexane, 1,3-Butadiene, Diethanolamine. Reports carcinogens. 49,030 lbs released over 5 years.
TRI facility ID 7362WRPHGS8MILE (U.S. EPA Toxics Release Inventory)
Severity 8.1
Enable Products/Clinton Natural Gas Processing Plant, Clinton
Toxic chemical release facility (TRI). Chemicals: n-Hexane, Cyclohexane, Toluene, Benzene and 4 more. Reports carcinogens. 8,286 lbs released over 5 years.
TRI facility ID 7360WNGXPR23143 (U.S. EPA Toxics Release Inventory)
Severity 7.5
Championx-Weatherford, Weatherford
Toxic chemical release facility (TRI). Chemicals: Methanol, Ethylbenzene, Toluene, Ethylene glycol and 4 more. Reports carcinogens. 4,617 lbs released over 5 years.
TRI facility ID 7390WNLCCM162NR (U.S. EPA Toxics Release Inventory)
Severity 7.3
Thomas Natural Gas Processing Plant, Thomas
Toxic chemical release facility (TRI). Chemicals: n-Hexane, Benzene. Reports carcinogens. 1,390 lbs released over 5 years.
TRI facility ID 7366WTHMSN23584 (U.S. EPA Toxics Release Inventory)
Severity 6.9
Miraclon Corporation, Weatherford
TRI reporting facility.
EPA FRS registry ID 110070813719 (U.S. EPA ECHO) Agency record
Severity 5.9
Championx - Weatherford, Weatherford
TRI reporting facility.
EPA FRS registry ID 110064378659 (U.S. EPA ECHO) Agency record
Severity 5.7
Mcclure Natural Gas Processing Plant, Butler
Toxic chemical release facility (TRI). Chemicals: n-Hexane, Diethanolamine. 3,452 lbs released over 5 years.
TRI facility ID 7362WMCCLR921NB (U.S. EPA Toxics Release Inventory)
Severity 5.7
Enogex Products Corporation - Clinton Natural Gas Processing Plant, Clinton
TRI reporting facility.
EPA FRS registry ID 110043719508 (U.S. EPA ECHO) Agency record
Severity 5.7
Mcclure Natural Gas Processing Plant, Butler
TRI reporting facility.
EPA FRS registry ID 110059720280 (U.S. EPA ECHO) Agency record
Severity 5.4
Markwest Oklahoma Gas Co Llc/Butler Arapaho Gas Plt, Butler
Major air pollution source. Penalties $4,725.
EPA FRS registry ID 110007386998 (U.S. EPA ECHO) Agency record
Severity 5.3
Printing And Pub Sys Div, Weatherford
Large hazardous waste generator. Penalties $1,125.
EPA FRS registry ID 110012282163 (U.S. EPA ECHO) Agency record
Severity 5.3
Clinton Wastewater Treatment Plant, Clinton
NPDES wastewater discharge permit.
EPA FRS registry ID 110000721611 (U.S. EPA ECHO) Agency record
Severity 4.5
Weatherford Public Works Authority, Weatherford
NPDES wastewater discharge permit. Penalties $3,613.
EPA FRS registry ID 110000715833 (U.S. EPA ECHO) Agency record
Severity 4.3
Markwest Oklahoma Gas Co Llc/Butler Arapaho Gas Plt, Butler
Large greenhouse gas emitter. Penalties $4,725.
EPA FRS registry ID 110007386998 (U.S. EPA ECHO) Agency record
Severity 4.3
Oneok Field Svc/Custer Gas Plt, Custer City
Major air pollution source.
EPA FRS registry ID 110013874977 (U.S. EPA ECHO) Agency record
Severity 4
Arapaho Gas Processing Plt, Butler
TRI reporting facility.
EPA FRS registry ID 110058343298 (U.S. EPA ECHO) Agency record
Severity 4
Weatherford #2 Batch Plant, Weatherford
TRI reporting facility.
EPA FRS registry ID 110071732394 (U.S. EPA ECHO) Agency record
Severity 4
Printing And Pub Sys Div, Weatherford
NPDES wastewater discharge permit. Penalties $1,125.
EPA FRS registry ID 110012282163 (U.S. EPA ECHO) Agency record
Severity 3.8
Enogex Llc/Thomas Tie Sta, Custer City
Major air pollution source.
EPA FRS registry ID 110040757044 (U.S. EPA ECHO) Agency record
Severity 3.8
Enogex Gas Gatherin/Custer Electric Sta, Hammon
Major air pollution source.
EPA FRS registry ID 110007032898 (U.S. EPA ECHO) Agency record
Severity 3.5
Anr Pipeline Co/Custer Cmpsr Sta, Arapaho
Major air pollution source.
EPA FRS registry ID 110007385301 (U.S. EPA ECHO) Agency record
Severity 3.5
Enogex Prod Llc/Thomas Processing Plt, Thomas
Major air pollution source.
EPA FRS registry ID 110007734513 (U.S. EPA ECHO) Agency record
Severity 3.5
Bar S Foods Co / Clinton Smokehouse Boiler Facility, Clinton
NPDES wastewater discharge permit.
EPA FRS registry ID 110009008901 (U.S. EPA ECHO) Agency record
Severity 3.3
Printing And Pub Sys Div, Weatherford
Air permit holder (minor source). Penalties $1,125.
EPA FRS registry ID 110012282163 (U.S. EPA ECHO) Agency record
Severity 3.3

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 Custer County

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