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Roosevelt County, Montana: environmental and disease records

Cancer mortality in Roosevelt County is 222.3 deaths per 100,000 people per year against a U.S. rate of 143.2, a statistically significant excess. Federal databases place 226 regulated facilities, sites and hazards inside the county, led by Rail grade crossing (82), NPDES wastewater discharge permit (64), Brownfield property (44). 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: 48.274, -104.9254.

How this county ranks in Montana

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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 Roosevelt County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
All cancer	Deaths	222.3	143.2	1.55xSignificant	181 to 269.9	2020-2024
Lung & bronchus	Deaths	36	30.2	1.19x	21.1 to 57.5	2020-2024
Lung & bronchus	New cases	58.2	51.8	1.12x	38.6 to 84.2	2019-2023
All cancer	New cases	500.3	453.4	1.1x	437.7 to 569.1	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 Roosevelt County
Measure	County	U.S. median	Difference	Unit
Premature death	32,695.5	9,842.6	+232%	years of life lost before age 75 per 100,000
Life expectancy	60.4	75.3	-20%	years
Child mortality	113.7	59.8	+90%	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	194.8	96.9	+101%	deaths per 100,000
Drug overdose deaths	34	28.6	+19%	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.

Formaldehyde10.1 per million
Carbon Tetrachloride2.87 per million
Acetaldehyde0.74 per million
Benzene0.7 per million

EPA Air Quality Index 2025

Monitored on 94 days: 82 good, 1 unhealthy for sensitive groups or worse. Median AQI 16, peak 196.

Regulated facilities, sites and hazards by type

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

Rail grade crossing82
NPDES wastewater discharge permit64
Brownfield property44
Gas station (mapped facility)8
Air permit holder (minor source)5
Major air pollution source3
Public airport3
Auto repair or body shop (mapped facility)2
Large greenhouse gas emitter2
Large hazardous waste generator2
Small hazardous waste generator2
Landfill (mapped facility)2
Other power plant2
Wastewater plant (mapped facility)2
EPA air quality monitor1
Commercial airport1
Gas 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.

High Plains Motors, Wolf Point
Large hazardous waste generator.
EPA FRS registry ID 110021323405 (U.S. EPA ECHO) Agency record
Severity 6
Town Of Culbertson Domestic Wwtf, Culbertson
NPDES wastewater discharge permit.
EPA FRS registry ID 110059798474 (U.S. EPA ECHO) Agency record
Severity 4.5
Poplar, Town Of, Poplar
NPDES wastewater discharge permit.
EPA FRS registry ID 110024586214 (U.S. EPA ECHO) Agency record
Severity 4.3
Anderson Pit, Culbertson
NPDES wastewater discharge permit.
EPA FRS registry ID 110056150551 (U.S. EPA ECHO) Agency record
Severity 3.8
Black Hills Trucking Inc - Culbertson Terminal, Culbertson
NPDES wastewater discharge permit.
EPA FRS registry ID 110010825759 (U.S. EPA ECHO) Agency record
Severity 3.5
Basin Electric Power Cooperative, Bainville
Major air pollution source.
EPA FRS registry ID 110040484641 (U.S. EPA ECHO) Agency record
Severity 3.5
Cs-3 Recovered Energy Facility, Culbertson
Major air pollution source.
EPA FRS registry ID 110041624187 (U.S. EPA ECHO) Agency record
Severity 3.5
Northern Border Pipeline Wolf Point Cs#2, Wolf Point
Major air pollution source.
EPA FRS registry ID 110043792802 (U.S. EPA ECHO) Agency record
Severity 3.5
Culbertson Generation Station, Culbertson
Gas power plant.
Record ID 56606 (U.S. Energy Information Administration)
Severity 3.1
Butch'S Exxon, Poplar
Brownfield property.
EPA FRS registry ID 110010692385 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Dallas Aero, Poplar
Brownfield property.
EPA FRS registry ID 110010780306 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Wolf Point Round House, Wolf Point
Brownfield property.
EPA FRS registry ID 110015334324 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Mt Cowboy Hall Of Fame & Western Heritage Center, Wolf Point
Brownfield property.
EPA FRS registry ID 110040316690 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Wolf Point City Shop, Wolf Point
Brownfield property.
EPA FRS registry ID 110070491699 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Imagination Station, Wolf Point
Brownfield property.
EPA FRS registry ID 110071963973 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Poplar Community Center Property, Poplar
Brownfield property.
EPA FRS registry ID 110071964117 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Peters Auto, Wolf Point
Brownfield property.
EPA FRS registry ID 110071964130 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Kenco Refinery - Wolf Point Green, Llc, Wolf Point
Brownfield property.
EPA FRS registry ID 110071964722 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Former Vfw Club, Wolf Point
Brownfield property.
EPA FRS registry ID 110071965129 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Old Saddle Shop, Wolf Point
Brownfield property.
EPA FRS registry ID 110071966750 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Former Spotted Bull Treatment Center, Poplar
Brownfield property.
EPA FRS registry ID 110071967625 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Poplar Airport, Poplar
Brownfield property.
EPA FRS registry ID 110071967708 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Mvdc Vet Clinic, Wolf Point
Brownfield property.
EPA FRS registry ID 110071968178 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Poplar Sludge Pit, Near Poplar
Brownfield property.
EPA FRS registry ID 110071968625 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Old Poplar Landfill, Poplar
Brownfield property.
EPA FRS registry ID 110071968626 (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 Roosevelt County

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