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Broadwater County, Montana: environmental and disease records

Cancer mortality in Broadwater County is 115.6 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 99 regulated facilities, sites and hazards inside the county, led by Rail grade crossing (40), NPDES wastewater discharge permit (35), Gas station (mapped facility) (8). 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: 46.3078, -111.4528.

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 Broadwater County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Melanoma of the skin	New cases	32.4	23.8	1.36x	18.2 to 54.5	2019-2023
All cancer	New cases	459.2	453.4	1.01x	401.8 to 523.4	2019-2023
Lung & bronchus	New cases	51.2	51.8	0.99x	34.6 to 74.8	2019-2023
All cancer	Deaths	115.6	143.2	0.81x	89.5 to 148.3	2020-2024

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 Broadwater County
Measure	County	U.S. median	Difference	Unit
Premature death	6,144.7	9,842.6	-38%	years of life lost before age 75 per 100,000
Life expectancy	80.2	75.3	+7%	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	94.5	96.9	-2%	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.

Formaldehyde8.88 per million
Carbon Tetrachloride2.63 per million
Acetaldehyde0.97 per million
Pahpom0.74 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

Rail grade crossing40
NPDES wastewater discharge permit35
Gas station (mapped facility)8
Public airport4
Brownfield property4
TRI reporting facility2
Toxic chemical release facility (TRI)2
Major air pollution source1
Air permit holder (minor source)1
Hydroelectric plant1
Scrapyard (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.

Graymont Western Lime Plant, Townsend
TRI reporting facility.
EPA FRS registry ID 110008058822 (U.S. EPA ECHO) Agency record
Severity 9.3
Us Army National Guard Limestone Hills Ranges, Townsend
Toxic chemical release facility (TRI). Chemicals: Copper, Lead. Reports carcinogens. 22,309 lbs released over 5 years.
TRI facility ID 5964WLMSTNLDWMA (U.S. EPA Toxics Release Inventory)
Severity 7.8
Graymont Western Us Inc Indian Creek Lime Production, Townsend
Toxic chemical release facility (TRI). Chemicals: Lead And Lead Compounds, Mercury And Mercury Compounds, Vanadium compounds, Vanadium (except when contained in an alloy). 357,650 lbs released over 5 years.
TRI facility ID 59644GRYMN45MIL (U.S. EPA Toxics Release Inventory)
Severity 7.3
Graymont Western Lime Plant, Townsend
Major air pollution source.
EPA FRS registry ID 110008058822 (U.S. EPA ECHO) Agency record
Severity 6.5
Graymont Western Lime Plant, Townsend
NPDES wastewater discharge permit.
EPA FRS registry ID 110008058822 (U.S. EPA ECHO) Agency record
Severity 6
Us Army National Guard Limestone Hills Ranges, Townsend
TRI reporting facility.
EPA FRS registry ID 110041626256 (U.S. EPA ECHO) Agency record
Severity 5.3
Paradine Mill, Radersburg
NPDES wastewater discharge permit.
EPA FRS registry ID 110013339324 (U.S. EPA ECHO) Agency record
Severity 4.5
Leep Dairy, Toston
NPDES wastewater discharge permit.
EPA FRS registry ID 110024877579 (U.S. EPA ECHO) Agency record
Severity 4.5
Broadwater County, Townsend
NPDES wastewater discharge permit.
EPA FRS registry ID 110046298038 (U.S. EPA ECHO) Agency record
Severity 4.5
City Of Townsend Wastewater Treatment Plant, Townsend
NPDES wastewater discharge permit.
EPA FRS registry ID 110070203626 (U.S. EPA ECHO) Agency record
Severity 4.5
Headwaters Livestock, Three Forks
NPDES wastewater discharge permit.
EPA FRS registry ID 110064580680 (U.S. EPA ECHO) Agency record
Severity 4
Town Pump, Three Forks
NPDES wastewater discharge permit.
EPA FRS registry ID 110020281808 (U.S. EPA ECHO) Agency record
Severity 3.8
Winston Mine, Winston
NPDES wastewater discharge permit.
EPA FRS registry ID 110070892862 (U.S. EPA ECHO) Agency record
Severity 3.3
Grover Exxon Station, Townsend
Brownfield property.
EPA FRS registry ID 110071966135 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Valley Masonic Lodge, Townsend
Brownfield property.
EPA FRS registry ID 110071973966 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Grover'S, Townsend
Brownfield property.
EPA FRS registry ID 110071976219 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Grover Exxon Lots D & E, Townsend
Brownfield property.
EPA FRS registry ID 110071982968 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Townsend, Townsend
Public airport. O.
Record ID 8U8 (FAA / U.S. DOT)
Severity 2
Canyon Ferry, Townsend
Public airport. O.
Record ID 8U9 (FAA / U.S. DOT)
Severity 2
Stephen A Links Suction Drdge, Townsend
NPDES wastewater discharge permit.
EPA FRS registry ID 110022557945 (U.S. EPA ECHO) Agency record
Severity 1.5
Hydrotech Water Resource Consultants Llc Missouri River 318 Permit, Townsend
NPDES wastewater discharge permit.
EPA FRS registry ID 110028118873 (U.S. EPA ECHO) Agency record
Severity 1.5
Poston Pit Site, Townsend
NPDES wastewater discharge permit.
EPA FRS registry ID 110030483331 (U.S. EPA ECHO) Agency record
Severity 1.5
Jim Gilman Excavating Inc Lippert Creek 318 Permit, Townsend
NPDES wastewater discharge permit.
EPA FRS registry ID 110030483983 (U.S. EPA ECHO) Agency record
Severity 1.5
Trout Unlimited Hanson Ranch Fish Creek 318 Permit, Whitehall
NPDES wastewater discharge permit.
EPA FRS registry ID 110037279496 (U.S. EPA ECHO) Agency record
Severity 1.5
Bruce Oakes 4 Inch Suction Dredge Operation, Radersburg
NPDES wastewater discharge permit.
EPA FRS registry ID 110039185878 (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 Broadwater 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 Broadwater 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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