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Pondera County, Montana: environmental and disease records

Cancer mortality in Pondera County is 159.4 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 97 regulated facilities, sites and hazards inside the county, led by Rail grade crossing (45), NPDES wastewater discharge permit (33), Brownfield property (9). 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: 48.233, -112.4459.

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 Pondera County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
All cancer	Deaths	159.4	143.2	1.11x	122.5 to 204.9	2020-2024
All cancer	New cases	455.6	453.4	1x	388.4 to 531.8	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 Pondera County
Measure	County	U.S. median	Difference	Unit
Premature death	9,386.1	9,842.6	-5%	years of life lost before age 75 per 100,000
Life expectancy	76.6	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	117.7	96.9	+21%	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: 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.

Formaldehyde8.29 per million
Carbon Tetrachloride2.7 per million
Acetaldehyde0.93 per million
Pahpom0.62 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

Rail grade crossing45
NPDES wastewater discharge permit33
Brownfield property9
Gas station (mapped facility)7
Public airport2
Auto repair or body shop (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.

New Miami Colony, Conrad
NPDES wastewater discharge permit.
EPA FRS registry ID 110011049846 (U.S. EPA ECHO) Agency record
Severity 3.8
Midway Colony, Conrad
NPDES wastewater discharge permit.
EPA FRS registry ID 110024461278 (U.S. EPA ECHO) Agency record
Severity 3.8
Kingsbury Colony Feedlot, Valier
NPDES wastewater discharge permit.
EPA FRS registry ID 110040637264 (U.S. EPA ECHO) Agency record
Severity 3.8
Fisher Flats Dump, Valier
Brownfield property.
EPA FRS registry ID 110038691868 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Old Clinic, Heart Butte
Brownfield property.
EPA FRS registry ID 110039063562 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Roy Davis Property, Valier
Brownfield property.
EPA FRS registry ID 110040661236 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Margie Kennedy Center, Heart Butte
Brownfield property.
EPA FRS registry ID 110071970987 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Fire Garage, Heart Butte
Brownfield property.
EPA FRS registry ID 110071972114 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Comes At Night House, Heart Butte
Brownfield property.
EPA FRS registry ID 110071972115 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Heart Butte - Open Space, Heart Butte
Brownfield property.
EPA FRS registry ID 110071972117 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Round Hall - Heart Butte, Heart Butte
Brownfield property.
EPA FRS registry ID 110071983976 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Rutherford House, Heart Butte
Brownfield property.
EPA FRS registry ID 110071983977 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
City Of Conrad Wwtf, Conrad
NPDES wastewater discharge permit.
EPA FRS registry ID 110000734037 (U.S. EPA ECHO) Agency record
Severity 2.8
Valier, Valier
Public airport. O.
Record ID 7S7 (FAA / U.S. DOT)
Severity 2
Conrad, Conrad
Public airport. O.
Record ID S01 (FAA / U.S. DOT)
Severity 2
Brady County Water Sewer District, Brady
NPDES wastewater discharge permit.
EPA FRS registry ID 110006723242 (U.S. EPA ECHO) Agency record
Severity 1.5
Birch Creek Colony-Treatment Plant, Valier
NPDES wastewater discharge permit.
EPA FRS registry ID 110009715068 (U.S. EPA ECHO) Agency record
Severity 1.5
Town Of Valier Wwtf, Valier
NPDES wastewater discharge permit.
EPA FRS registry ID 110010826259 (U.S. EPA ECHO) Agency record
Severity 1.5
Pondera Colony, Valier
NPDES wastewater discharge permit.
EPA FRS registry ID 110011049819 (U.S. EPA ECHO) Agency record
Severity 1.5
Northern Mt Joint Refuse Disp Dist Lf, Conrad
NPDES wastewater discharge permit.
EPA FRS registry ID 110013991207 (U.S. EPA ECHO) Agency record
Severity 1.5
Shumaker Trucking & Excavating - Jensen Coulee & Other Sites 318 Permit, Dupuyer
NPDES wastewater discharge permit.
EPA FRS registry ID 110032595519 (U.S. EPA ECHO) Agency record
Severity 1.5
Lake Frances - East Dam Project, Valier
NPDES wastewater discharge permit.
EPA FRS registry ID 110037272616 (U.S. EPA ECHO) Agency record
Severity 1.5
Dick Anderson Construction - Bridge Of Canal 6km Sw Of Valier 318 Permit, Valier
NPDES wastewater discharge permit.
EPA FRS registry ID 110038447044 (U.S. EPA ECHO) Agency record
Severity 1.5
Johnson Feedlot, Conrad
NPDES wastewater discharge permit.
EPA FRS registry ID 110039186555 (U.S. EPA ECHO) Agency record
Severity 1.5
Nelcon Inc - Midway Colony Gravel Pit, Conrad
NPDES wastewater discharge permit.
EPA FRS registry ID 110041256093 (U.S. EPA ECHO) Agency record
Severity 1.5

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 Pondera 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 Pondera 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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