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Wheatland County, Montana: environmental and disease records

Cancer mortality in Wheatland County is 145.9 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 49 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (22), Rail grade crossing (11), Brownfield property (6). 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: 46.486, -109.8425.

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 Wheatland County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
All cancer	New cases	520	453.4	1.15x	406.3 to 659.3	2019-2023
All cancer	Deaths	145.9	143.2	1.02x	90.5 to 227.8	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 Wheatland County
Measure	County	U.S. median	Difference	Unit
Premature death	12,189.3	9,842.6	+24%	years of life lost before age 75 per 100,000
Life expectancy	75.3	75.3	+0%	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	141.4	96.9	+46%	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.

Formaldehyde7.52 per million
Carbon Tetrachloride2.62 per million
Acetaldehyde0.71 per million
Pahpom0.55 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

NPDES wastewater discharge permit22
Rail grade crossing11
Brownfield property6
Wind power plant4
Gas station (mapped facility)3
Public airport1
Commercial airport1
Heliport1

Highest-severity records

The 25 records with the highest Envyrofax severity in the county, with the agency identifier to cite in a records request.

Duncan Ranch, Harlowton
NPDES wastewater discharge permit.
EPA FRS registry ID 110070518928 (U.S. EPA ECHO) Agency record
Severity 4.5
Jones Quarry, Harlowton
NPDES wastewater discharge permit.
EPA FRS registry ID 110070917096 (U.S. EPA ECHO) Agency record
Severity 4.5
Swanz Ranch, Judith Gap
NPDES wastewater discharge permit.
EPA FRS registry ID 110037117866 (U.S. EPA ECHO) Agency record
Severity 4.3
Springwater Colony - Feedlot, Harlowton
NPDES wastewater discharge permit.
EPA FRS registry ID 110058917178 (U.S. EPA ECHO) Agency record
Severity 4.3
Duncan Ranch Colony, Harlowton
NPDES wastewater discharge permit.
EPA FRS registry ID 110009860828 (U.S. EPA ECHO) Agency record
Severity 3.8
Bob'S Chevron, Harlowton
Brownfield property.
EPA FRS registry ID 110071966131 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Harlowton Roundhouse, Harlowton
Brownfield property.
EPA FRS registry ID 110071976222 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
State Theater, Harlowton
Brownfield property.
EPA FRS registry ID 110071977611 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
1st Street Apartments, Harlowton
Brownfield property.
EPA FRS registry ID 110071977612 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Harlowton Railyard, Harlowton
Brownfield property.
EPA FRS registry ID 110071983477 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Biegel Bar, Harlowton
Brownfield property.
EPA FRS registry ID 110071986943 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
City Of Harlowton Wwtf, Harlowton
NPDES wastewater discharge permit.
EPA FRS registry ID 110009715148 (U.S. EPA ECHO) Agency record
Severity 2.8
Wheatland County At Harlowton, Harlowton
Commercial airport. O.
Record ID HWQ (FAA / U.S. DOT)
Severity 2
City Of Harlowton - Oil Skimmer, Harlowton
NPDES wastewater discharge permit.
EPA FRS registry ID 110011047303 (U.S. EPA ECHO) Agency record
Severity 1.5
Jerry Blaquiere Suction Drdge, Harlowton
NPDES wastewater discharge permit.
EPA FRS registry ID 110020824401 (U.S. EPA ECHO) Agency record
Severity 1.5
Mk Weeden - K-4 Pit, Hedgesville
NPDES wastewater discharge permit.
EPA FRS registry ID 110041245453 (U.S. EPA ECHO) Agency record
Severity 1.5
Mk Weeden Construction - K 4 Overburden Site, Hedgesville
NPDES wastewater discharge permit.
EPA FRS registry ID 110041255931 (U.S. EPA ECHO) Agency record
Severity 1.5
Mussleshell Wind Project, Shawmut
NPDES wastewater discharge permit.
EPA FRS registry ID 110044903922 (U.S. EPA ECHO) Agency record
Severity 1.5
Wheatland County Moss And Mosquito Control, Harlowton
NPDES wastewater discharge permit.
EPA FRS registry ID 110045510283 (U.S. EPA ECHO) Agency record
Severity 1.5
Musselshell Wind Project And Musselshell Wind Project Two, Shawmut
NPDES wastewater discharge permit.
EPA FRS registry ID 110055369462 (U.S. EPA ECHO) Agency record
Severity 1.5
Wickens Construction Mdot Lebo Creek Bridge Removal 318, Harlowton
NPDES wastewater discharge permit.
EPA FRS registry ID 110056149387 (U.S. EPA ECHO) Agency record
Severity 1.5
M A Deatley - Alkali Creek - Harlowton, Harlowton
NPDES wastewater discharge permit.
EPA FRS registry ID 110059802628 (U.S. EPA ECHO) Agency record
Severity 1.5
M A Deatley Construction Musselshell River 318, Shawmut
NPDES wastewater discharge permit.
EPA FRS registry ID 110064616321 (U.S. EPA ECHO) Agency record
Severity 1.5
Northwestern Energy 318 Permit, Harlowton
NPDES wastewater discharge permit.
EPA FRS registry ID 110064644176 (U.S. EPA ECHO) Agency record
Severity 1.5
Harlowton Milwaukee Roundhouse, Harlowton
NPDES wastewater discharge permit.
EPA FRS registry ID 110070507850 (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 Wheatland 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 Wheatland 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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