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Hancock County, Iowa: environmental and disease records

Cancer mortality in Hancock County is 130.1 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 197 regulated facilities, sites and hazards inside the county, led by Rail grade crossing (95), Air permit holder (minor source) (30), NPDES wastewater discharge permit (18). 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: 43.0751, -93.7341.

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 Hancock 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	38.3	23.8	1.61xSignificant	24.9 to 57	2019-2023
Leukemia	New cases	21.2	14.5	1.46x	12.1 to 35.3	2019-2023
All cancer	New cases	474.2	453.4	1.05x	424.2 to 529	2019-2023
Non-Hodgkin lymphoma	New cases	17.1	18.5	0.92x	10 to 28.8	2019-2023
Bladder	New cases	17.2	18.7	0.92x	9.9 to 29.2	2019-2023
Lung & bronchus	Deaths	27.6	30.2	0.91x	17.3 to 42.8	2020-2024
All cancer	Deaths	130.1	143.2	0.91x	106.2 to 158.5	2020-2024
Lung & bronchus	New cases	42.8	51.8	0.83x	29.9 to 60.5	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 Hancock County
Measure	County	U.S. median	Difference	Unit
Premature death	6,875.8	9,842.6	-30%	years of life lost before age 75 per 100,000
Life expectancy	78.6	75.3	+4%	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	84.6	96.9	-13%	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.

Formaldehyde13.33 per million
Carbon Tetrachloride2.94 per million
Acetaldehyde1.13 per million
Benzene0.7 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

Rail grade crossing95
Air permit holder (minor source)30
NPDES wastewater discharge permit18
Industrial wastewater discharge14
TRI reporting facility7
Toxic chemical release facility (TRI)7
Major air pollution source5
Gas station (mapped facility)4
Large hazardous waste generator4
Small hazardous waste generator4
Wastewater plant (mapped facility)4
Wind power plant2
Public airport1
Commercial airport1
Large greenhouse gas emitter1

Highest-severity records

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

Winnebago Industries, Inc - Forest City, Forest City
TRI reporting facility.
EPA FRS registry ID 110000833162 (U.S. EPA ECHO) Agency record
Severity 8.6
Winnebago Industries Inc., Forest City
Toxic chemical release facility (TRI). Chemicals: Styrene, Diisocyanates. Reports carcinogens. 54,912 lbs released over 5 years.
TRI facility ID 50436WNNBGCRYST (U.S. EPA Toxics Release Inventory)
Severity 8.1
Zinpro Corp, Garner
Toxic chemical release facility (TRI). Chemicals: Zinc compounds, Manganese compounds, Copper compounds, Copper And Copper Compounds and 4 more. Reports carcinogens. 44,259 lbs released over 5 years.
TRI facility ID 50438ZNPRC880EA (U.S. EPA Toxics Release Inventory)
Severity 8.1
Zinpro Corp, Garner
TRI reporting facility. Penalties $10,000.
EPA FRS registry ID 110000413366 (U.S. EPA ECHO) Agency record
Severity 8.1
Cdi, Llc. - Forest City, Forest City
TRI reporting facility. Penalties $5,600.
EPA FRS registry ID 110013394674 (U.S. EPA ECHO) Agency record
Severity 7.6
Mg Waldbaum Co, Britt
Toxic chemical release facility (TRI). Chemicals: Nitrate compounds (water dissociable; reportable only when in aqueous solution), Nitric acid. 362,711 lbs released over 5 years.
TRI facility ID 50423RMRFDHWY18 (U.S. EPA Toxics Release Inventory)
Severity 7.3
Cdi Llc, Forest City
Toxic chemical release facility (TRI). Chemicals: Certain glycol ethers, Xylene (mixed isomers). 67,488 lbs released over 5 years.
TRI facility ID 50436CDLLC35NER (U.S. EPA Toxics Release Inventory)
Severity 6.7
Stellar Industries, Inc, Garner
TRI reporting facility. Penalties $50,500.
EPA FRS registry ID 110043600494 (U.S. EPA ECHO) Agency record
Severity 6.3
Winnebago Industries, Inc - Forest City, Forest City
Major air pollution source.
EPA FRS registry ID 110000833162 (U.S. EPA ECHO) Agency record
Severity 6.3
Stellar Industries Inc - Garner Plant, Garner
Toxic chemical release facility (TRI). Chemicals: Manganese, Lead. Reports carcinogens. 181 lbs released over 5 years.
TRI facility ID 50438STLLR28WTH (U.S. EPA Toxics Release Inventory)
Severity 6.2
M G Waldbaum Company, Britt
TRI reporting facility.
EPA FRS registry ID 110059667187 (U.S. EPA ECHO) Agency record
Severity 6.2
Winnebago Industries, Inc - Forest City, Forest City
Large hazardous waste generator.
EPA FRS registry ID 110000833162 (U.S. EPA ECHO) Agency record
Severity 5.8
Winnebago Industries, Inc - Forest City, Forest City
NPDES wastewater discharge permit.
EPA FRS registry ID 110000833162 (U.S. EPA ECHO) Agency record
Severity 5.8
Iowa Mold Tooling Company, Inc., Garner
TRI reporting facility. Penalties $20,000.
EPA FRS registry ID 110056931708 (U.S. EPA ECHO) Agency record
Severity 5.6
Cdi, Llc. - Forest City, Forest City
Major air pollution source. Penalties $5,600.
EPA FRS registry ID 110013394674 (U.S. EPA ECHO) Agency record
Severity 5.3
Iowa Mold Tooling Co, Garner
Toxic chemical release facility (TRI). Chemicals: Manganese. 208 lbs released over 5 years.
TRI facility ID 50438WMLDT500HW (U.S. EPA Toxics Release Inventory)
Severity 4.8
Stellar Industries Inc - Kanawha Plant, Kanawha
Toxic chemical release facility (TRI). Chemicals: Lead. Reports carcinogens.
TRI facility ID 50447KFRBL305EA (U.S. EPA Toxics Release Inventory)
Severity 4.6
Garner Wwtp, Garner
NPDES wastewater discharge permit.
EPA FRS registry ID 110002039945 (U.S. EPA ECHO) Agency record
Severity 4.5
Stellar Industries, Inc, Garner
Large hazardous waste generator. Penalties $50,500.
EPA FRS registry ID 110043600494 (U.S. EPA ECHO) Agency record
Severity 4.5
Iowa Mold Tooling Company, Inc., Garner
Large hazardous waste generator. Penalties $20,000.
EPA FRS registry ID 110056931708 (U.S. EPA ECHO) Agency record
Severity 4
Stellar Industries, Inc. - Kanawha Plant, Kanawha
TRI reporting facility.
EPA FRS registry ID 110070887944 (U.S. EPA ECHO) Agency record
Severity 4
Klemme City Of Stp, Klemme
NPDES wastewater discharge permit.
EPA FRS registry ID 110009723950 (U.S. EPA ECHO) Agency record
Severity 3.8
Corwith City Of Stp, Corwith
NPDES wastewater discharge permit.
EPA FRS registry ID 110010036512 (U.S. EPA ECHO) Agency record
Severity 3.8
Northern Natural Gas Co - Ventura Compressor, Garner
Major air pollution source.
EPA FRS registry ID 110001761479 (U.S. EPA ECHO) Agency record
Severity 3.5
Northern Natural Gas Co - Garner Lng Plant, Garner
Major air pollution source.
EPA FRS registry ID 110005773788 (U.S. EPA ECHO) Agency record
Severity 3.5

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 Hancock 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 Hancock 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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