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Harrison County, Iowa: environmental and disease records

Cancer mortality in Harrison County is 156.8 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 200 regulated facilities, sites and hazards inside the county, led by Rail grade crossing (128), Air permit holder (minor source) (16), Industrial wastewater discharge (13). 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: 41.6858, -95.8397.

How this county ranks in Iowa

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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 Harrison 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	39.9	23.8	1.68xSignificant	27.1 to 56.7	2019-2023
Lung & bronchus	New cases	63.6	51.8	1.23x	49.3 to 81.3	2019-2023
Kidney & renal pelvis	New cases	21.8	17.9	1.22x	13.5 to 33.7	2019-2023
Non-Hodgkin lymphoma	New cases	22.5	18.5	1.22x	14.1 to 34.6	2019-2023
All cancer	New cases	513	453.4	1.13xSignificant	468.1 to 561.5	2019-2023
All cancer	Deaths	156.8	143.2	1.09x	133.4 to 183.6	2020-2024
Lung & bronchus	Deaths	32.7	30.2	1.08x	22.9 to 46	2020-2024
Bladder	New cases	20.2	18.7	1.08x	12.4 to 31.6	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 Harrison County
Measure	County	U.S. median	Difference	Unit
Premature death	6,754.6	9,842.6	-31%	years of life lost before age 75 per 100,000
Life expectancy	76.3	75.3	+1%	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	89.6	96.9	-8%	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: 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.

Formaldehyde15.46 per million
Carbon Tetrachloride2.92 per million
Acetaldehyde1.31 per million
Benzene0.73 per million

EPA Air Quality Index 2025

Monitored on 236 days: 196 good, 2 unhealthy for sensitive groups or worse. Median AQI 39, peak 119.

Regulated facilities, sites and hazards by type

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

Rail grade crossing128
Air permit holder (minor source)16
Industrial wastewater discharge13
Gas station (mapped facility)12
NPDES wastewater discharge permit12
Auto repair or body shop (mapped facility)5
Small hazardous waste generator3
Landfill (mapped facility)3
Public airport2
EPA air quality monitor1
Large hazardous waste generator1
Hazardous waste transporter1
Scrapyard (mapped facility)1
TRI reporting facility1
Toxic chemical release facility (TRI)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.

Carry-On Trailer Corp, Missouri Valley
Toxic chemical release facility (TRI). Chemicals: Manganese, Nickel, Chromium, Lead. Reports carcinogens. 172 lbs released over 5 years.
TRI facility ID 51555CRRYN1965H (U.S. EPA Toxics Release Inventory)
Severity 6.2
Carry-On Trailer Corp, Missouri Valley
TRI reporting facility.
EPA FRS registry ID 110031018618 (U.S. EPA ECHO) Agency record
Severity 4.7
Missouri Valley City Of Wtp, Missouri Valley
NPDES wastewater discharge permit.
EPA FRS registry ID 110036378862 (U.S. EPA ECHO) Agency record
Severity 4
Mondamin City Of Stp, Mondamin
NPDES wastewater discharge permit.
EPA FRS registry ID 110010036273 (U.S. EPA ECHO) Agency record
Severity 3.8
Dunlap Wwtp, Dunlap
NPDES wastewater discharge permit.
EPA FRS registry ID 110010033686 (U.S. EPA ECHO) Agency record
Severity 3
Missouri Valley City Of Stp, Missouri Valley
NPDES wastewater discharge permit.
EPA FRS registry ID 110010036148 (U.S. EPA ECHO) Agency record
Severity 3
Dhanoa Freightlines Inc, Missouri Valley
Large hazardous waste generator.
EPA FRS registry ID 110072291016 (U.S. EPA ECHO) Agency record
Severity 3
Woodbine Wwtp, Woodbine
NPDES wastewater discharge permit.
EPA FRS registry ID 110010035112 (U.S. EPA ECHO) Agency record
Severity 2.5
Quality Liquid Feeds Inc, Dunlap
Air permit holder (minor source). Penalties $2,050.
EPA FRS registry ID 110000414472 (U.S. EPA ECHO) Agency record
Severity 2
Woodbine Muni, Woodbine
Public airport. O.
Record ID 3Y4 (FAA / U.S. DOT)
Severity 2
City Yard Waste Dump Site
Landfill (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/1178243840 (OpenStreetMap contributors) Agency record
Severity 2
Landfill
Landfill (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/1459389520 (OpenStreetMap contributors) Agency record
Severity 2
Harrison County Landfill
Landfill (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/1496205012 (OpenStreetMap contributors) Agency record
Severity 2
Missouri Valley City Of Wtp, Missouri Valley
Industrial wastewater discharge. Significant/Category I Noncompliance.
NPDES permit IA0080454: (U.S. EPA NPDES)
Severity 1.8
Pisgah City Of Stp, Pisgah
Industrial wastewater discharge. No Violation Identified.
NPDES permit IA0057827: (U.S. EPA NPDES)
Severity 1.7
Persia Stp (Regional Water Inc.), Persia
NPDES wastewater discharge permit.
EPA FRS registry ID 110010029067 (U.S. EPA ECHO) Agency record
Severity 1.5
Logan Wwtp, Logan
NPDES wastewater discharge permit.
EPA FRS registry ID 110010032516 (U.S. EPA ECHO) Agency record
Severity 1.5
X7 Cattle, Woodbine
NPDES wastewater discharge permit.
EPA FRS registry ID 110014336478 (U.S. EPA ECHO) Agency record
Severity 1.5
Crossroads Cattle Co, Woodbine
NPDES wastewater discharge permit.
EPA FRS registry ID 110030994850 (U.S. EPA ECHO) Agency record
Severity 1.5
Carry-On Trailer Corp, Missouri Valley
Small hazardous waste generator.
EPA FRS registry ID 110031018618 (U.S. EPA ECHO) Agency record
Severity 1.5
Desoto Natl Wildlife Refuge-Visitor Ctr, Missouri Valley
Small hazardous waste generator.
EPA FRS registry ID 110036256039 (U.S. EPA ECHO) Agency record
Severity 1.5
Pisgah City Of Stp, Pisgah
NPDES wastewater discharge permit.
EPA FRS registry ID 110036354085 (U.S. EPA ECHO) Agency record
Severity 1.5
Modale, City Of Stp, Modale
NPDES wastewater discharge permit.
EPA FRS registry ID 110036383561 (U.S. EPA ECHO) Agency record
Severity 1.5
Little Sioux River Sioux Stp, Little Sioux
NPDES wastewater discharge permit.
EPA FRS registry ID 110036383598 (U.S. EPA ECHO) Agency record
Severity 1.5
Union Pacific Railroad - Missouri Valley Ia, Missouri Valley
Small hazardous waste generator.
EPA FRS registry ID 110064666614 (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 Harrison County

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