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Clark County, Wisconsin: environmental and disease records

Cancer mortality in Clark County is 172.5 deaths per 100,000 people per year against a U.S. rate of 143.2, a statistically significant excess. The strongest disease signals are Lung & bronchus deaths at 1.3 times the U.S. rate. Federal databases place 226 regulated facilities, sites and hazards inside the county, led by Rail grade crossing (97), NPDES wastewater discharge permit (74), Gas station (mapped facility) (11). 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: 44.7269, -90.6192.

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 Clark County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Leukemia	Deaths	8.5	5.7	1.49x	5 to 13.8	2020-2024
Pancreas	Deaths	16.4	11.3	1.45x	11.3 to 23	2020-2024
Non-Hodgkin lymphoma	Deaths	6.9	4.8	1.44x	3.9 to 11.4	2020-2024
Lung & bronchus	Deaths	40	30.2	1.32xSignificant	32 to 49.5	2020-2024
Kidney & renal pelvis	New cases	22.4	17.9	1.25x	16.1 to 30.5	2019-2023
Pancreas	New cases	17	13.9	1.22x	11.9 to 23.8	2019-2023
All cancer	Deaths	172.5	143.2	1.2xSignificant	155.1 to 191.5	2020-2024
Non-Hodgkin lymphoma	New cases	21.5	18.5	1.16x	15.2 to 29.7	2019-2023
Bladder	New cases	21.7	18.7	1.16x	16 to 29	2019-2023
Thyroid	New cases	13.9	13	1.07x	8.4 to 21.3	2019-2023
All cancer	New cases	467.4	453.4	1.03x	437.6 to 498.8	2019-2023
Leukemia	New cases	14.4	14.5	0.99x	9.3 to 21.4	2019-2023
Melanoma of the skin	New cases	23.3	23.8	0.98x	17 to 31.3	2019-2023
Lung & bronchus	New cases	46.1	51.8	0.89x	37.6 to 56	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 Clark County
Measure	County	U.S. median	Difference	Unit
Premature death	7,843.2	9,842.6	-20%	years of life lost before age 75 per 100,000
Life expectancy	76.8	75.3	+2%	years
Child mortality	63	59.8	+5%	deaths under age 18 per 100,000
Infant mortality	6.2	6.2	+0%	deaths under age 1 per 1,000 live births
Injury deaths	83.5	96.9	-14%	deaths per 100,000
Drug overdose deaths	12.5	28.6	-56%	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.

Formaldehyde12.38 per million
Carbon Tetrachloride2.96 per million
Acetaldehyde1.26 per million
Benzene0.84 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

Rail grade crossing97
NPDES wastewater discharge permit74
Gas station (mapped facility)11
Toxic chemical release facility (TRI)9
TRI reporting facility8
Small hazardous waste generator7
Air permit holder (minor source)6
Public airport4
Major air pollution source2
Large hazardous waste generator2
Commercial airport1
Auto repair or body shop (mapped facility)1
Brownfield property1
Hazardous waste transporter1
Landfill (mapped facility)1
Wastewater plant (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.

Grassland Dairy Prod Inc-81, Greenwood
TRI reporting facility.
EPA FRS registry ID 110000421927 (U.S. EPA ECHO) Agency record
Severity 8.6
Lynn Dairy, Granton
TRI reporting facility.
EPA FRS registry ID 110043970469 (U.S. EPA ECHO) Agency record
Severity 8.6
Lynn Dairy/Lynn Proteins, Granton
Toxic chemical release facility (TRI). Chemicals: Nitrate compounds (water dissociable; reportable only when in aqueous solution), Nitric acid. 1,694,522 lbs released over 5 years.
TRI facility ID 54436LYNNDW1929 (U.S. EPA Toxics Release Inventory)
Severity 7.8
Grassland Dairy Products Inc, Greenwood
Toxic chemical release facility (TRI). Chemicals: Nitrate compounds (water dissociable; reportable only when in aqueous solution), Nitric acid. 260,966 lbs released over 5 years.
TRI facility ID 54437JHNWTHWY98 (U.S. EPA Toxics Release Inventory)
Severity 7.2
Henry G Meigs, Abbotsford
Toxic chemical release facility (TRI). Chemicals: Polycyclic aromatic compounds, Naphthalene. Reports carcinogens.
TRI facility ID 5440WHNRYG122WS (U.S. EPA Toxics Release Inventory)
Severity 4.6
Cummins Filtration - Neillsville East, Neillsville
TRI reporting facility.
EPA FRS registry ID 110016951093 (U.S. EPA ECHO) Agency record
Severity 4.5
Badger Holsteins Of Unity Llc, Unity, Town Of
NPDES wastewater discharge permit.
EPA FRS registry ID 110044241157 (U.S. EPA ECHO) Agency record
Severity 4.5
Dutch Dairy Llc, Reseburg, Town Of
NPDES wastewater discharge permit.
EPA FRS registry ID 110046339280 (U.S. EPA ECHO) Agency record
Severity 4.5
Schilling Auto Salvage, Mayville
NPDES wastewater discharge permit.
EPA FRS registry ID 110070937900 (U.S. EPA ECHO) Agency record
Severity 4.5
All Metal Stamping Inc., Abbotsford
Toxic chemical release facility (TRI). Chemicals: Lead. Reports carcinogens.
TRI facility ID 54405LLMTL411WH (U.S. EPA Toxics Release Inventory)
Severity 4.5
Kerry Inc, Owen
TRI reporting facility.
EPA FRS registry ID 110000422070 (U.S. EPA ECHO) Agency record
Severity 4.4
Cummins Filtration-Neillsville East, Neillsville
Toxic chemical release facility (TRI). Chemicals: Diisocyanates. 53 lbs released over 5 years.
TRI facility ID 54456NLSND1401E (U.S. EPA Toxics Release Inventory)
Severity 4.3
Clark County Health Care Center, Owen
NPDES wastewater discharge permit.
EPA FRS registry ID 110010886817 (U.S. EPA ECHO) Agency record
Severity 4.3
All Metal Stamping Inc., Abbotsford
TRI reporting facility.
EPA FRS registry ID 110000421847 (U.S. EPA ECHO) Agency record
Severity 4
Grassland Dairy Prod Inc-81, Greenwood
NPDES wastewater discharge permit.
EPA FRS registry ID 110000421927 (U.S. EPA ECHO) Agency record
Severity 4
Greenwood Milk Products, Greenwood
TRI reporting facility.
EPA FRS registry ID 110000421936 (U.S. EPA ECHO) Agency record
Severity 4
Henry G Meigs, Abbotsford
TRI reporting facility.
EPA FRS registry ID 110070839998 (U.S. EPA ECHO) Agency record
Severity 4
Commodore Homes, Llc Dba Midcountry Homes, Dorchester
TRI reporting facility.
EPA FRS registry ID 110071250511 (U.S. EPA ECHO) Agency record
Severity 4
Kerry Inc, Owen
Toxic chemical release facility (TRI). Chemicals: Nitric acid, Certain glycol ethers, Peracetic acid. 15 lbs released over 5 years.
TRI facility ID 54460NRTHL324NO (U.S. EPA Toxics Release Inventory)
Severity 3.9
Owen Wastewater Treatment Facility, Owen
NPDES wastewater discharge permit.
EPA FRS registry ID 110010889734 (U.S. EPA ECHO) Agency record
Severity 3.8
Chili Wastewater Treatment Fac, Chili
NPDES wastewater discharge permit.
EPA FRS registry ID 110010886522 (U.S. EPA ECHO) Agency record
Severity 3.5
Curtiss Waterworks-200, Curtiss
NPDES wastewater discharge permit.
EPA FRS registry ID 110010886700 (U.S. EPA ECHO) Agency record
Severity 3.5
Lynn Dairy, Granton
NPDES wastewater discharge permit.
EPA FRS registry ID 110043970469 (U.S. EPA ECHO) Agency record
Severity 3.5
Grassland Dairy Products Inc, Greenwood
Major air pollution source.
EPA FRS registry ID 110063931606 (U.S. EPA ECHO) Agency record
Severity 3.5
Buckhorn Rng Llc, Unity
Major air pollution source.
EPA FRS registry ID 110071642703 (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 Clark 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 Clark 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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