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Marshall County, Iowa: environmental and disease records

Cancer mortality in Marshall County is 158 deaths per 100,000 people per year against a U.S. rate of 143.2, a statistically significant excess. The strongest disease signals are Bladder deaths at 1.7 times the U.S. rate. Federal databases place 254 regulated facilities, sites and hazards inside the county, led by Rail grade crossing (63), Brownfield property (53), Air permit holder (minor source) (46). 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: 42.0459, -92.999.

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 Marshall County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Bladder	Deaths	7.1	4.1	1.73xSignificant	4.3 to 11.2	2020-2024
Esophagus	Deaths	5.9	3.7	1.59x	3.3 to 9.8	2020-2024
Esophagus	New cases	6.8	4.6	1.48x	4.1 to 10.8	2019-2023
Kidney & renal pelvis	New cases	26.2	17.9	1.46xSignificant	19.8 to 33.9	2019-2023
Leukemia	Deaths	7.7	5.7	1.35x	4.7 to 12.1	2020-2024
Bladder	New cases	24.6	18.7	1.32xSignificant	19.1 to 31.4	2019-2023
Non-Hodgkin lymphoma	Deaths	6	4.8	1.25x	3.5 to 9.9	2020-2024
Non-Hodgkin lymphoma	New cases	22.7	18.5	1.23x	16.9 to 29.9	2019-2023
Pancreas	New cases	16	13.9	1.15x	11.3 to 22	2019-2023
Lung & bronchus	Deaths	34.5	30.2	1.14x	28 to 42.3	2020-2024
All cancer	Deaths	158	143.2	1.1xSignificant	143.3 to 174	2020-2024
Brain & nervous system	New cases	6.8	6.2	1.1x	3.8 to 11.3	2019-2023
All cancer	New cases	496.2	453.4	1.09xSignificant	468.7 to 524.9	2019-2023
Lung & bronchus	New cases	56.6	51.8	1.09x	48.1 to 66.3	2019-2023
Leukemia	New cases	15.8	14.5	1.09x	11.1 to 21.9	2019-2023
Liver & bile duct	Deaths	7.1	6.6	1.08x	4.3 to 11.3	2020-2024
Melanoma of the skin	New cases	25.4	23.8	1.07x	19.3 to 32.8	2019-2023
Liver & bile duct	New cases	9.2	8.7	1.06x	5.9 to 13.9	2019-2023
Pancreas	Deaths	10.1	11.3	0.89x	6.6 to 15	2020-2024
Thyroid	New cases	10.2	13	0.78x	6.1 to 16	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 Marshall County
Measure	County	U.S. median	Difference	Unit
Premature death	9,260.6	9,842.6	-6%	years of life lost before age 75 per 100,000
Life expectancy	74.9	75.3	-0%	years
Child mortality	61.2	59.8	+2%	deaths under age 18 per 100,000
Infant mortality	7.7	6.2	+23%	deaths under age 1 per 1,000 live births
Injury deaths	87.1	96.9	-10%	deaths per 100,000
Drug overdose deaths	10.9	28.6	-62%	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.

Formaldehyde15.16 per million
Carbon Tetrachloride2.95 per million
Acetaldehyde1.35 per million
Benzene0.81 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

Rail grade crossing63
Brownfield property53
Air permit holder (minor source)46
NPDES wastewater discharge permit24
Industrial wastewater discharge20
Gas station (mapped facility)10
Small hazardous waste generator8
Toxic chemical release facility (TRI)5
Major air pollution source4
Wastewater plant (mapped facility)4
TRI reporting facility3
Auto repair or body shop (mapped facility)2
Large greenhouse gas emitter2
Heliport2
Gas power plant2
Oil-fired power plant2
Wind power plant2
Commercial airport1
Landfill (mapped facility)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.

Swift Pork, Marshalltown
Toxic chemical release facility (TRI). Chemicals: Ammonia, Nitrate compounds (water dissociable; reportable only when in aqueous solution). 123,595 lbs released over 5 years.
TRI facility ID 50158SWFTNNORTH (U.S. EPA Toxics Release Inventory)
Severity 6.9
Fisher Controls International Llc, Marshalltown
Toxic chemical release facility (TRI). Chemicals: Chromium, Nickel, Manganese, Copper. Reports carcinogens. 1,169 lbs released over 5 years.
TRI facility ID 50158FSHRCGOVER (U.S. EPA Toxics Release Inventory)
Severity 6.9
Swift & Company, Marshalltown
TRI reporting facility.
EPA FRS registry ID 110014393325 (U.S. EPA ECHO) Agency record
Severity 6.5
Diamond Vogel Inc., Marshalltown
Toxic chemical release facility (TRI). Chemicals: Ethylene glycol. 3,964 lbs released over 5 years.
TRI facility ID 50158DMNDP715S3 (U.S. EPA Toxics Release Inventory)
Severity 5.8
Forterra Concrete Products - Marshalltown, Marshalltown
Toxic chemical release facility (TRI). Chemicals: Lead. Reports carcinogens.
TRI facility ID 5015WFRTRR22ELI (U.S. EPA Toxics Release Inventory)
Severity 4.6
Lennox Industries Inc, Marshalltown
Toxic chemical release facility (TRI). Chemicals: Nickel, Cobalt, Lead, Chromium and 3 more. Reports carcinogens.
TRI facility ID 50158LNNXN200S1 (U.S. EPA Toxics Release Inventory)
Severity 4.5
Laurel, City Of Stp, Laurel
NPDES wastewater discharge permit. Penalties $1,000.
EPA FRS registry ID 110010029600 (U.S. EPA ECHO) Agency record
Severity 4.3
Marshall Ridge Renewable Energy, Llc, State Center
Major air pollution source.
EPA FRS registry ID 110071241156 (U.S. EPA ECHO) Agency record
Severity 4.3
Alliant Sbd 9107 Jbs Usa, Marshalltown
Oil-fired power plant.
Record ID 54715 (U.S. Energy Information Administration)
Severity 4
State Center, State Center
Oil-fired power plant.
Record ID 1187 (U.S. Energy Information Administration)
Severity 4
Lennox Industries Inc, Marshalltown
TRI reporting facility.
EPA FRS registry ID 110000412731 (U.S. EPA ECHO) Agency record
Severity 4
Marshalltown City Of Stp, Marshalltown
NPDES wastewater discharge permit.
EPA FRS registry ID 110001123230 (U.S. EPA ECHO) Agency record
Severity 4
Swift & Company, Marshalltown
Major air pollution source.
EPA FRS registry ID 110014393325 (U.S. EPA ECHO) Agency record
Severity 4
Forterra Pipe & Precast, Marshalltown
TRI reporting facility.
EPA FRS registry ID 110070309822 (U.S. EPA ECHO) Agency record
Severity 4
Albion City Of Stp, Albion
NPDES wastewater discharge permit.
EPA FRS registry ID 110039690572 (U.S. EPA ECHO) Agency record
Severity 3.8
Mtbt- Marshalltown, Marshalltown
Major air pollution source.
EPA FRS registry ID 110071294120 (U.S. EPA ECHO) Agency record
Severity 3.8
Marshalltown Generating Station, Marshalltown
Gas power plant.
Record ID 58236 (U.S. Energy Information Administration)
Severity 3.7
Bruin Manufacturing Co, Marshalltown
NPDES wastewater discharge permit.
EPA FRS registry ID 110005737006 (U.S. EPA ECHO) Agency record
Severity 3.5
Swift & Company, Marshalltown
NPDES wastewater discharge permit.
EPA FRS registry ID 110014393325 (U.S. EPA ECHO) Agency record
Severity 3.5
Sutherland Generating Sta-Alliant Energy, Marshalltown
Major air pollution source.
EPA FRS registry ID 110019914011 (U.S. EPA ECHO) Agency record
Severity 3.5
Marshalltown, Marshalltown
Gas power plant.
Record ID 1068 (U.S. Energy Information Administration)
Severity 3.2
Ace Precision Castings Llc, Marshalltown
Brownfield property.
EPA FRS registry ID 110036378639 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Former School Property, Marshalltown
Brownfield property.
EPA FRS registry ID 110038727526 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Malloy Property, Marshalltown
Brownfield property.
EPA FRS registry ID 110040821545 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
City Of Marshalltown 1, Marshalltown
Brownfield property.
EPA FRS registry ID 110040822553 (U.S. EPA Brownfields (ACRES)) 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 Marshall 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 Marshall 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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