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Johnson County, Arkansas: environmental and disease records

Cancer mortality in Johnson County is 181.1 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 1.8 times the U.S. rate. Federal databases place 224 regulated facilities, sites and hazards inside the county, led by Industrial wastewater discharge (87), NPDES wastewater discharge permit (53), Air permit holder (minor source) (29). EPA AirToxScreen estimates a lifetime cancer risk from outdoor air toxics of 30 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: 35.5374, -93.4632.

How this county ranks in Arkansas

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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 Johnson County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Lung & bronchus	Deaths	55	30.2	1.82xSignificant	44.3 to 67.6	2020-2024
Liver & bile duct	New cases	14.4	8.7	1.66xSignificant	9.5 to 21.4	2019-2023
Liver & bile duct	Deaths	10.6	6.6	1.61x	6.5 to 16.9	2020-2024
Lung & bronchus	New cases	82.7	51.8	1.6xSignificant	69.6 to 97.6	2019-2023
Melanoma of the skin	New cases	37.3	23.8	1.57xSignificant	28.4 to 48.4	2019-2023
Leukemia	New cases	19.7	14.5	1.36x	13.1 to 28.6	2019-2023
All cancer	Deaths	181.1	143.2	1.26xSignificant	160.7 to 203.5	2020-2024
Kidney & renal pelvis	New cases	19.8	17.9	1.11x	13 to 28.8	2019-2023
All cancer	New cases	475.6	453.4	1.05x	442 to 511.2	2019-2023
Bladder	New cases	17.7	18.7	0.95x	11.9 to 25.7	2019-2023
Non-Hodgkin lymphoma	New cases	16.9	18.5	0.91x	11 to 25	2019-2023
Pancreas	New cases	10.8	13.9	0.78x	6.4 to 17.3	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 Johnson County
Measure	County	U.S. median	Difference	Unit
Premature death	11,849	9,842.6	+20%	years of life lost before age 75 per 100,000
Life expectancy	73.4	75.3	-2%	years
Child mortality	52	59.8	-13%	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	87.3	96.9	-10%	deaths per 100,000
Drug overdose deaths	21.7	28.6	-24%	deaths per 100,000

Air toxics and air quality

EPA AirToxScreen 2020

Lifetime cancer risk from outdoor air toxics: 30 in a million. EPA treats 100 in a million as the upper end of acceptable risk and 1 in a million as the goal.

Formaldehyde21.37 per million
Carbon Tetrachloride2.91 per million
Acetaldehyde2.12 per million
Pahpom0.87 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

Industrial wastewater discharge87
NPDES wastewater discharge permit53
Air permit holder (minor source)29
Rail grade crossing22
Gas station (mapped facility)13
Toxic chemical release facility (TRI)6
TRI reporting facility5
Brownfield property2
Solar power plant2
Major air pollution source1
Public airport1
Large greenhouse gas emitter1
Heliport1
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.

Greenville Tube Co Llc, Clarksville
Toxic chemical release facility (TRI). Chemicals: 1-Bromopropane, tert-Butyl alcohol, Nickel, Chromium and 2 more. Reports carcinogens. 250,091 lbs released over 5 years.
TRI facility ID 72830GRNVLLUCAS (U.S. EPA Toxics Release Inventory)
Severity 8.6
K2 Marine Inc, Knoxville
Toxic chemical release facility (TRI). Chemicals: Styrene. Reports carcinogens. 49,118 lbs released over 5 years.
TRI facility ID 72845KNNRMI40EX (U.S. EPA Toxics Release Inventory)
Severity 8.1
K2 Marine Inc, Knoxville
Toxic chemical release facility (TRI). Chemicals: Styrene. Reports carcinogens. 30,348 lbs released over 5 years.
TRI facility ID 72845K2MRN238CR (U.S. EPA Toxics Release Inventory)
Severity 7.9
Tyson Poultry Inc., Clarksville
Toxic chemical release facility (TRI). Chemicals: Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia, Peracetic acid. 1,754,866 lbs released over 5 years.
TRI facility ID 72830TYSNF200EA (U.S. EPA Toxics Release Inventory)
Severity 7.8
Greenville Tube Company, Clarksville
TRI reporting facility.
EPA FRS registry ID 110000598229 (U.S. EPA ECHO) Agency record
Severity 7.7
Tyson Foods Inc - Clarksville Processing, Clarksville
TRI reporting facility.
EPA FRS registry ID 110000453296 (U.S. EPA ECHO) Agency record
Severity 6.9
The Pictsweet Co - Clarksville Ar Plant, Clarksville
Toxic chemical release facility (TRI). Chemicals: Ammonia. 31,525 lbs released over 5 years.
TRI facility ID 7283WTHPCT59ETA (U.S. EPA Toxics Release Inventory)
Severity 6.5
Kenner Manufacturing Co Inc, Knoxville
TRI reporting facility.
EPA FRS registry ID 110002129893 (U.S. EPA ECHO) Agency record
Severity 5.9
The Pictsweet Company - Clarksville, Ar Plant, Clarksville
TRI reporting facility.
EPA FRS registry ID 110070551950 (U.S. EPA ECHO) Agency record
Severity 5.9
Tyson Poultry - Spadra Feedmill, Clarksville
TRI reporting facility.
EPA FRS registry ID 110064123318 (U.S. EPA ECHO) Agency record
Severity 4
Coal Hill, City Of-Wwtp, Coal Hill
NPDES wastewater discharge permit.
EPA FRS registry ID 110009006869 (U.S. EPA ECHO) Agency record
Severity 3.8
Lamar, City Of, Lamar
NPDES wastewater discharge permit. Penalties $5,400.
EPA FRS registry ID 110010066178 (U.S. EPA ECHO) Agency record
Severity 3.8
K2 Marine Inc, Knoxville
Major air pollution source.
EPA FRS registry ID 110039204688 (U.S. EPA ECHO) Agency record
Severity 3.5
Tyson Poultry, Inc - Clarksville, Clarksville
NPDES wastewater discharge permit. Penalties $6,900.
EPA FRS registry ID 110064253267 (U.S. EPA ECHO) Agency record
Severity 3.5
Clarksville Connected Utilities - Pollution Control Facility, Clarksville
NPDES wastewater discharge permit.
EPA FRS registry ID 110000873877 (U.S. EPA ECHO) Agency record
Severity 3.3
Old Clarksville Hospital, Clarksville
Brownfield property.
EPA FRS registry ID 110071966426 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Hurst Welding, Clarksville
Brownfield property.
EPA FRS registry ID 110071980025 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Greenville Tube Company, Clarksville
NPDES wastewater discharge permit.
EPA FRS registry ID 110000598229 (U.S. EPA ECHO) Agency record
Severity 3
Clarksville Connected Utilities - Pollution Control Facility, Clarksville
Industrial wastewater discharge. No Violation Identified.
NPDES permit AR0022187: (U.S. EPA NPDES)
Severity 3
Tyson Poultry Inc- Spadra Feed Mill, Clarksville
Toxic chemical release facility (TRI). Chemicals: Copper compounds, Manganese compounds, Zinc compounds.
TRI facility ID 72830TYSNF1700C (U.S. EPA Toxics Release Inventory)
Severity 3
Tyson Poultry Inc - Clarksville Wastewater Treatment Plant, Clarksville
Large greenhouse gas emitter.
EPA FRS registry ID 110070511811 (U.S. EPA ECHO) Agency record
Severity 2.5
Clarksville Water Treatment Plant, Clarksville
Industrial wastewater discharge. No Violation Identified.
NPDES permit ARG640103: (U.S. EPA NPDES)
Severity 2.3
Clarksville Muni, Clarksville
Public airport. O.
Record ID H35 (FAA / U.S. DOT)
Severity 2
Tyson Foods Inc - Clarksville Processing, Clarksville
NPDES wastewater discharge permit.
EPA FRS registry ID 110000453296 (U.S. EPA ECHO) Agency record
Severity 1.5
Baldor Electric, Clarksville
NPDES wastewater discharge permit.
EPA FRS registry ID 110003400310 (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 Johnson County

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