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Grant County, Wisconsin: environmental and disease records

Cancer mortality in Grant County is 162.8 deaths per 100,000 people per year against a U.S. rate of 143.2, a statistically significant excess. The strongest disease signals are Brain & nervous system deaths at 2 times the U.S. rate. Federal databases place 279 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (110), Rail grade crossing (67), Gas station (mapped facility) (34). 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: 42.8581, -90.762.

How this county ranks in Wisconsin

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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 Grant County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Brain & nervous system	Deaths	9	4.4	2.05xSignificant	5.7 to 13.6	2020-2024
Brain & nervous system	New cases	9.6	6.2	1.55x	6.2 to 14.1	2019-2023
Pancreas	New cases	17.6	13.9	1.27x	13.2 to 23.2	2019-2023
Non-Hodgkin lymphoma	Deaths	5.8	4.8	1.21x	3.5 to 9.2	2020-2024
Non-Hodgkin lymphoma	New cases	22.2	18.5	1.2x	17.2 to 28.3	2019-2023
Esophagus	Deaths	4.4	3.7	1.19x	2.5 to 7.4	2020-2024
Kidney & renal pelvis	New cases	21.1	17.9	1.18x	16.3 to 27	2019-2023
Pancreas	Deaths	13.1	11.3	1.16x	9.4 to 17.9	2020-2024
Thyroid	New cases	15	13	1.15x	10.2 to 21.1	2019-2023
All cancer	Deaths	162.8	143.2	1.14xSignificant	149.2 to 177.5	2020-2024
Leukemia	Deaths	6.3	5.7	1.11x	3.9 to 9.7	2020-2024
Liver & bile duct	New cases	9.4	8.7	1.08x	6.4 to 13.5	2019-2023
Lung & bronchus	Deaths	32.2	30.2	1.07x	26.4 to 39.1	2020-2024
All cancer	New cases	471.9	453.4	1.04x	447.5 to 497.3	2019-2023
Leukemia	New cases	15	14.5	1.03x	11 to 20.1	2019-2023
Esophagus	New cases	4.7	4.6	1.02x	2.6 to 7.9	2019-2023
Melanoma of the skin	New cases	24.2	23.8	1.02x	18.8 to 30.6	2019-2023
Lung & bronchus	New cases	50.3	51.8	0.97x	42.9 to 58.8	2019-2023
Stomach	New cases	6.4	6.6	0.97x	3.9 to 10.2	2019-2023
Bladder	New cases	18	18.7	0.96x	13.8 to 23.2	2019-2023
Liver & bile duct	Deaths	6.1	6.6	0.92x	3.7 to 9.6	2020-2024

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 Grant County
Measure	County	U.S. median	Difference	Unit
Premature death	7,008.7	9,842.6	-29%	years of life lost before age 75 per 100,000
Life expectancy	78	75.3	+4%	years
Child mortality	55.4	59.8	-7%	deaths under age 18 per 100,000
Infant mortality	5.8	6.2	-7%	deaths under age 1 per 1,000 live births
Injury deaths	68.8	96.9	-29%	deaths per 100,000
Drug overdose deaths	11.7	28.6	-59%	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.

Formaldehyde14.75 per million
Carbon Tetrachloride2.96 per million
Acetaldehyde1.41 per million
Benzene0.86 per million

EPA Air Quality Index 2025

Monitored on 358 days: 246 good, 3 unhealthy for sensitive groups or worse. Median AQI 37, peak 167.

Regulated facilities, sites and hazards by type

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

NPDES wastewater discharge permit110
Rail grade crossing67
Gas station (mapped facility)34
Toxic chemical release facility (TRI)12
Air permit holder (minor source)10
Auto repair or body shop (mapped facility)7
TRI reporting facility7
Public airport5
Large hazardous waste generator4
Brownfield property3
Small hazardous waste generator3
Heliport3
Major air pollution source2
Commercial airport2
Hazardous waste transporter2
Industrial wastewater discharge2
Solar power plant2
EPA air quality monitor1
Large greenhouse gas emitter1
Oil-fired power plant1
Scrapyard (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.

Foremost Farms Usa, Lancaster
TRI reporting facility.
EPA FRS registry ID 110000420358 (U.S. EPA ECHO) Agency record
Severity 7.9
Loudspeaker Components Llc, Lancaster
Toxic chemical release facility (TRI). Chemicals: Methanol. 67,739 lbs released over 5 years.
TRI facility ID 53813CMMNC7596U (U.S. EPA Toxics Release Inventory)
Severity 6.7
Muscoda Protein Products, Muscoda
Toxic chemical release facility (TRI). Chemicals: Nitrate compounds (water dissociable; reportable only when in aqueous solution), Peracetic acid, Nitric acid, Ammonia. 20,285 lbs released over 5 years.
TRI facility ID 53573MSCDPPOBOX (U.S. EPA Toxics Release Inventory)
Severity 6.3
Energizer Holdings Inc.-Fennimore, Fennimore
Toxic chemical release facility (TRI). Chemicals: Manganese, Zinc compounds. 14,422 lbs released over 5 years.
TRI facility ID 53809RYVCC10019 (U.S. EPA Toxics Release Inventory)
Severity 6.2
Loudspeaker Components Llc, Lancaster
TRI reporting facility.
EPA FRS registry ID 110000594090 (U.S. EPA ECHO) Agency record
Severity 5.9
POTOSI, Potosi
EPA air quality monitor.
Record ID 550430009 (U.S. EPA AirData)
Severity 5.9
Milk Specialties Global-Boscobel, Boscobel
Toxic chemical release facility (TRI). Chemicals: Nitrate compounds (water dissociable; reportable only when in aqueous solution), Nitric acid. 4,789 lbs released over 5 years.
TRI facility ID 53805MLKSPHWY13 (U.S. EPA Toxics Release Inventory)
Severity 5.8
Energizer Manufacturing Inc - Fennimore, Fennimore
TRI reporting facility.
EPA FRS registry ID 110000498863 (U.S. EPA ECHO) Agency record
Severity 5.7
Foremost Farms Usa, Lancaster
Toxic chemical release facility (TRI). Chemicals: Nitrate compounds (water dissociable; reportable only when in aqueous solution), Nitric acid. 2,440 lbs released over 5 years.
TRI facility ID 53813WSCNS932NO (U.S. EPA Toxics Release Inventory)
Severity 5.6
Durr Universal Inc., Muscoda
Toxic chemical release facility (TRI). Chemicals: Manganese, Chromium, Nickel, Cobalt and 1 more. Reports carcinogens. 22 lbs released over 5 years.
TRI facility ID 53573NVRSL815EN (U.S. EPA Toxics Release Inventory)
Severity 5.5
Milprint Inc, Lancaster
TRI reporting facility.
EPA FRS registry ID 110000855806 (U.S. EPA ECHO) Agency record
Severity 5.3
Amcor Wisconsin, Llc, Boscobel
TRI reporting facility.
EPA FRS registry ID 110000856173 (U.S. EPA ECHO) Agency record
Severity 5.3
Platteville Wastewater Treatment Facility, Platteville
NPDES wastewater discharge permit.
EPA FRS registry ID 110001103350 (U.S. EPA ECHO) Agency record
Severity 5.3
Milprint Inc, Lancaster
Major air pollution source.
EPA FRS registry ID 110000855806 (U.S. EPA ECHO) Agency record
Severity 4.8
Amcor Wisconsin, Llc, Boscobel
Major air pollution source.
EPA FRS registry ID 110000856173 (U.S. EPA ECHO) Agency record
Severity 4.8
Majestic View Dairy Llc, North Lancaster, Town Of
NPDES wastewater discharge permit.
EPA FRS registry ID 110041249618 (U.S. EPA ECHO) Agency record
Severity 4.5
Scot Industries Inc, Muscoda
TRI reporting facility.
EPA FRS registry ID 110000419985 (U.S. EPA ECHO) Agency record
Severity 4.4
Foremost Farms Usa, Lancaster
NPDES wastewater discharge permit.
EPA FRS registry ID 110000420358 (U.S. EPA ECHO) Agency record
Severity 4.3
Milprint Inc, Lancaster
Large hazardous waste generator.
EPA FRS registry ID 110000855806 (U.S. EPA ECHO) Agency record
Severity 4.3
Amcor Wisconsin, Llc, Boscobel
Large hazardous waste generator.
EPA FRS registry ID 110000856173 (U.S. EPA ECHO) Agency record
Severity 4.3
Jamestown Sanitary District No 2 Wwtf, Hazel Green
NPDES wastewater discharge permit.
EPA FRS registry ID 110010887022 (U.S. EPA ECHO) Agency record
Severity 4.3
Scot Industries Inc, Muscoda
Toxic chemical release facility (TRI). Chemicals: Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region), Manganese And Manganese Compounds, Copper And Copper Compounds, Lead And Lead Compounds. 25 lbs released over 5 years.
TRI facility ID 53573WSCNS810NE (U.S. EPA Toxics Release Inventory)
Severity 4.1
Fennimore, Fennimore
Oil-fired power plant.
Record ID 4114 (U.S. Energy Information Administration)
Severity 4
Lancaster Wastewater Treatment Facility, Lancaster
NPDES wastewater discharge permit.
EPA FRS registry ID 110005502410 (U.S. EPA ECHO) Agency record
Severity 4
Livingston Wastewater Treatment Facility, Livingston
NPDES wastewater discharge permit.
EPA FRS registry ID 110010848529 (U.S. EPA ECHO) Agency record
Severity 4

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 Grant County

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