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Rolette County, North Dakota: environmental and disease records

Cancer mortality in Rolette County is 235.8 deaths per 100,000 people per year against a U.S. rate of 143.2, a statistically significant excess. The strongest disease signals are Lung & bronchus deaths at 2.3 times the U.S. rate. Federal databases place 69 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (32), Brownfield property (19), Gas station (mapped facility) (7). 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: 48.7725, -99.8544.

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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 Rolette County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Lung & bronchus	Deaths	69.4	30.2	2.3xSignificant	49.2 to 95.1	2020-2024
Kidney & renal pelvis	New cases	34	17.9	1.9xSignificant	20.5 to 53	2019-2023
Lung & bronchus	New cases	91.3	51.8	1.76xSignificant	68 to 120.1	2019-2023
All cancer	Deaths	235.8	143.2	1.65xSignificant	197.2 to 279.9	2020-2024
All cancer	New cases	571.9	453.4	1.26xSignificant	512 to 637	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 Rolette County
Measure	County	U.S. median	Difference	Unit
Premature death	22,508.3	9,842.6	+129%	years of life lost before age 75 per 100,000
Life expectancy	65.2	75.3	-13%	years
Child mortality	62.9	59.8	+5%	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	141.1	96.9	+46%	deaths per 100,000
Drug overdose deaths	39.3	28.6	+37%	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.

Formaldehyde9.98 per million
Carbon Tetrachloride2.91 per million
Acetaldehyde0.75 per million
Benzene0.65 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

NPDES wastewater discharge permit32
Brownfield property19
Gas station (mapped facility)7
Scrapyard (mapped facility)5
Public airport3
Auto repair or body shop (mapped facility)1
Landfill (mapped facility)1
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.

Sky Dancer Lagoon System, Belcourt
NPDES wastewater discharge permit.
EPA FRS registry ID 110020152341 (U.S. EPA ECHO) Agency record
Severity 4.3
St John City Of, St John
NPDES wastewater discharge permit.
EPA FRS registry ID 110022361335 (U.S. EPA ECHO) Agency record
Severity 4.3
East Dunseith Wastewater Treatment Lagoons, Belcourt
NPDES wastewater discharge permit.
EPA FRS registry ID 110009841813 (U.S. EPA ECHO) Agency record
Severity 3.8
Green Acres Lagoon System Wwtf, Belcourt
NPDES wastewater discharge permit.
EPA FRS registry ID 110020142683 (U.S. EPA ECHO) Agency record
Severity 3.8
Northern States Power Company Â Broder Winds Repower Â Laydown Yard, Rolla
NPDES wastewater discharge permit.
EPA FRS registry ID 110070616871 (U.S. EPA ECHO) Agency record
Severity 3.3
Turtle Mountain Housing, Belcourt
Brownfield property.
EPA FRS registry ID 110038741485 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Former Rainbow Service, St. John
Brownfield property.
EPA FRS registry ID 110038755978 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
San Haven, Dunseith
Brownfield property.
EPA FRS registry ID 110039530923 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Former Rolla Mercantile Building, Rolla
Brownfield property.
EPA FRS registry ID 110043638178 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Old Administration Building, Belcourt
Brownfield property.
EPA FRS registry ID 110045401784 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
San Haven, Dunseith
Brownfield property.
EPA FRS registry ID 110071102005 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Turtleville Housing, Rolette
Brownfield property.
EPA FRS registry ID 110071965850 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
L'Belcour (Site Wide), Belcourt
Brownfield property.
EPA FRS registry ID 110071972116 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Crissler'S Open Dump, Belcourt
Brownfield property.
EPA FRS registry ID 110071973050 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Old Dog Pound, Belcourt
Brownfield property.
EPA FRS registry ID 110071973051 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Buddy Falcon Gas Station, Belcourt
Brownfield property.
EPA FRS registry ID 110071973052 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
L'Belcour #9, Belcourt
Brownfield property.
EPA FRS registry ID 110071973239 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
L'Belcour #11, Belcourt
Brownfield property.
EPA FRS registry ID 110071973240 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
San Haven Building #19, Dunseith
Brownfield property.
EPA FRS registry ID 110071973321 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
L'Belcour #2, Belcourt
Brownfield property.
EPA FRS registry ID 110071974041 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Melroe Manufacturing Building, Belcourt
Brownfield property.
EPA FRS registry ID 110071978165 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Block Grant Building, Belcourt
Brownfield property.
EPA FRS registry ID 110071986990 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Bia Home 308, Dunseith
Brownfield property.
EPA FRS registry ID 110071987025 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Bia Home 309, Dunseith
Brownfield property.
EPA FRS registry ID 110071987026 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
International Peace Gardens, Dunseith
NPDES wastewater discharge permit.
EPA FRS registry ID 110010826696 (U.S. EPA ECHO) 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 Rolette County

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