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Oliver County, North Dakota: environmental and disease records

Federal databases place 56 regulated facilities, sites and hazards inside the county, led by Rail grade crossing (26), NPDES wastewater discharge permit (15), Toxic chemical release facility (TRI) (3). 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: 47.1372, -101.3542.

How this county ranks in North Dakota

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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 Oliver County compared with the United States
CancerMeasureCounty rateU.S. rateTimes U.S.95% intervalYears
All cancerNew cases249.7453.40.55x165.6 to 365.52019-2023

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 Oliver County
MeasureCountyU.S. medianDifferenceUnit
Premature death9,686.49,842.6-2%years of life lost before age 75 per 100,000
Life expectancy92.275.3+23%years
Child mortalityn/a59.8n/adeaths under age 18 per 100,000
Infant mortalityn/a6.2n/adeaths under age 1 per 1,000 live births
Injury deathsn/a96.9n/adeaths per 100,000
Drug overdose deathsn/a28.6n/adeaths 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.

  • Formaldehyde11.64 per million
  • Carbon Tetrachloride2.87 per million
  • Benzene0.76 per million
  • Acetaldehyde0.74 per million

EPA Air Quality Index 2025

Monitored on 365 days: 295 good, 11 unhealthy for sensitive groups or worse. Median AQI 38, peak 242.

Regulated facilities, sites and hazards by type

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

  • Rail grade crossing26
  • NPDES wastewater discharge permit15
  • Toxic chemical release facility (TRI)3
  • Brownfield property2
  • Wind power plant2
  • TRI reporting facility2
  • Major air pollution source1
  • EPA air quality monitor1
  • Air permit holder (minor source)1
  • Public airport1
  • Large greenhouse gas emitter1
  • Coal 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.

  1. Minnkota Power Cooperative Inc. Milton R. Young Station, Center

    Toxic chemical release facility (TRI). Chemicals: Barium And Barium Compounds, Barium compounds (except for barium sulfate (CAS No. 7727-43-7)), Manganese And Manganese Compounds, Manganese compounds and 4 more. Reports carcinogens. 22,672,268 lbs released over 5 years.

    TRI facility ID 58530MLTNR34012 (U.S. EPA Toxics Release Inventory)

    Severity 10

  2. Basin Electric Leland Olds Station, Stanton

    Toxic chemical release facility (TRI). Chemicals: Ammonia, Zinc compounds, Zinc (fume or dust), Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) and 4 more. Reports carcinogens. 1,517,856 lbs released over 5 years.

    TRI facility ID 58571LLNDL3901H (U.S. EPA Toxics Release Inventory)

    Severity 9.2

  3. Minnkota Power Cooperative Inc Milton R Young Station, Center

    TRI reporting facility.

    EPA FRS registry ID 110000428387 (U.S. EPA ECHO) Agency record

    Severity 8.8

  4. Bni Coal Ltd, Center

    Toxic chemical release facility (TRI). Chemicals: Barium And Barium Compounds, Ammonia, Lead And Lead Compounds, Lead compounds and 2 more. 111,007 lbs released over 5 years.

    TRI facility ID 58530BNCLL23603 (U.S. EPA Toxics Release Inventory)

    Severity 6.9

  5. Milton R Young, Center

    Coal power plant.

    Record ID 2823 (U.S. Energy Information Administration)

    Severity 6.7

  6. Bni Coal Ltd-Center Mine, Center

    TRI reporting facility.

    EPA FRS registry ID 110011788191 (U.S. EPA ECHO) Agency record

    Severity 6.4

  7. Minnkota Power Cooperative Inc Milton R Young Station, Center

    Major air pollution source.

    EPA FRS registry ID 110000428387 (U.S. EPA ECHO) Agency record

    Severity 5.3

  8. HANNOVER

    EPA air quality monitor.

    Record ID 380650002 (U.S. EPA AirData)

    Severity 4.8

  9. Minnkota Power Cooperative Inc Milton R Young Station, Center

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110000428387 (U.S. EPA ECHO) Agency record

    Severity 4.8

  10. Minnkota Power Cooperative Inc Milton R Young Station, Center

    Large greenhouse gas emitter.

    EPA FRS registry ID 110000428387 (U.S. EPA ECHO) Agency record

    Severity 4.3

  11. Former Cahoon'S Bar & Grill, Center

    Brownfield property.

    EPA FRS registry ID 110071972628 (U.S. EPA Brownfields (ACRES)) Agency record

    Severity 3

  12. Betty Hagel Memorial Civic Center, Center

    Brownfield property.

    EPA FRS registry ID 110071975410 (U.S. EPA Brownfields (ACRES)) Agency record

    Severity 3

  13. Center City Of, Center

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110011045181 (U.S. EPA ECHO) Agency record

    Severity 3

  14. Bni Coal Ltd-Center Mine, Center

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110011788191 (U.S. EPA ECHO) Agency record

    Severity 3

  15. Bni Coal Ltd-Center Mine, Center

    Air permit holder (minor source).

    EPA FRS registry ID 110011788191 (U.S. EPA ECHO) Agency record

    Severity 2.5

  16. Price/Riedinger Pit, Bismarck

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110070053422 (U.S. EPA ECHO) Agency record

    Severity 2.5

  17. Center Coal Co, Center

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110009841653 (U.S. EPA ECHO) Agency record

    Severity 2.3

  18. Minnesota Power, Center

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110042253922 (U.S. EPA ECHO) Agency record

    Severity 1.5

  19. Rud Oil & Gas - Center, Center

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110064546451 (U.S. EPA ECHO) Agency record

    Severity 1.5

  20. Summit Carbon Storage #3, Llc, (Unknown City)

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110071178939 (U.S. EPA ECHO) Agency record

    Severity 1.5

  21. Dakota Helicopters Inc., (Unknown City)

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110071359710 (U.S. EPA ECHO) Agency record

    Severity 1.5

  22. Oliver Iv T-Line Project, (Unknown City)

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110071728284 (U.S. EPA ECHO) Agency record

    Severity 1.5

  23. Oliver Iv Wind Project, (Unknown City)

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110071729084 (U.S. EPA ECHO) Agency record

    Severity 1.5

  24. Nelson Lake Substatioin, Center

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110072184409 (U.S. EPA ECHO) Agency record

    Severity 1.5

  25. Applied Digital Bis Campus, Center

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110072203207 (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 Oliver 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 Oliver 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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