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Johnston County, Oklahoma: environmental and disease records

Cancer mortality in Johnston County is 187.1 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 1.9 times the U.S. rate. Federal databases place 156 regulated facilities, sites and hazards inside the county, led by Air permit holder (minor source) (92), Rail grade crossing (25), NPDES wastewater discharge permit (23). 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: 34.3134, -96.6702.

How this county ranks in Oklahoma

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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 Johnston County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Lung & bronchus	Deaths	56.7	30.2	1.88xSignificant	40 to 78.6	2020-2024
Lung & bronchus	New cases	74.7	51.8	1.44xSignificant	56 to 98.4	2019-2023
All cancer	Deaths	187.1	143.2	1.31xSignificant	155.4 to 223.8	2020-2024
All cancer	New cases	491.3	453.4	1.08x	437.1 to 550.6	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 Johnston County
Measure	County	U.S. median	Difference	Unit
Premature death	13,634	9,842.6	+39%	years of life lost before age 75 per 100,000
Life expectancy	71.3	75.3	-5%	years
Child mortality	121	59.8	+102%	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	169.9	96.9	+75%	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: 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.

Formaldehyde22.11 per million
Carbon Tetrachloride2.88 per million
Acetaldehyde1.81 per million
Benzene0.76 per million

EPA Air Quality Index 2024

Monitored on 257 days: 192 good, 3 unhealthy for sensitive groups or worse. Median AQI 44, peak 119.

Regulated facilities, sites and hazards by type

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

Air permit holder (minor source)92
Rail grade crossing25
NPDES wastewater discharge permit23
Public airport7
Gas station (mapped facility)4
Auto repair or body shop (mapped facility)2
EPA air quality monitor1
Heliport1
Wind power plant1

Highest-severity records

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

Tishomingo, City Of, Tishomingo
NPDES wastewater discharge permit. Penalties $10,312.
EPA FRS registry ID 110011008006 (U.S. EPA ECHO) Agency record
Severity 5
Wapanucka Public Works Auth., Wapanucka
NPDES wastewater discharge permit.
EPA FRS registry ID 110011007622 (U.S. EPA ECHO) Agency record
Severity 3
Mill Creek, Town Of, Mill Creek
NPDES wastewater discharge permit.
EPA FRS registry ID 110012299752 (U.S. EPA ECHO) Agency record
Severity 2.8
Mill Creek Dolomite, Llc, Mill Creek
NPDES wastewater discharge permit. Penalties $17,000.
EPA FRS registry ID 110007735111 (U.S. EPA ECHO) Agency record
Severity 2.5
Mill Creek Dolomite, Llc, Mill Creek
Air permit holder (minor source). Penalties $17,000.
EPA FRS registry ID 110007735111 (U.S. EPA ECHO) Agency record
Severity 2
Tishomingo Airpark, Tishomingo
Public airport. O.
Record ID 0F9 (FAA / U.S. DOT)
Severity 2
Us Silica Company-Mill Creek North Plant, Mill Creek
NPDES wastewater discharge permit.
EPA FRS registry ID 110007385597 (U.S. EPA ECHO) Agency record
Severity 1.5
Martin Marietta Materials, Inc.- Mill Creek, Mill Creek
NPDES wastewater discharge permit.
EPA FRS registry ID 110007385604 (U.S. EPA ECHO) Agency record
Severity 1.5
Skiles Farm, Holdenville
NPDES wastewater discharge permit.
EPA FRS registry ID 110011013410 (U.S. EPA ECHO) Agency record
Severity 1.5
Mahard Egg Farm, Inc. - Ravia, Ravia
NPDES wastewater discharge permit.
EPA FRS registry ID 110011013651 (U.S. EPA ECHO) Agency record
Severity 1.5
Dewayne Carroll, Mannsville
NPDES wastewater discharge permit.
EPA FRS registry ID 110011013722 (U.S. EPA ECHO) Agency record
Severity 1.5
Holts Egg Farm, Stonewall
NPDES wastewater discharge permit.
EPA FRS registry ID 110011013786 (U.S. EPA ECHO) Agency record
Severity 1.5
Wood Farm, Larry, Milburn
NPDES wastewater discharge permit.
EPA FRS registry ID 110011013820 (U.S. EPA ECHO) Agency record
Severity 1.5
Mahard Egg Farm, Inc.- Granite, Milburn
NPDES wastewater discharge permit.
EPA FRS registry ID 110011014302 (U.S. EPA ECHO) Agency record
Severity 1.5
Vulcan Construction Materials Llc / North Troy Quarry, Mill Creek
NPDES wastewater discharge permit.
EPA FRS registry ID 110018856941 (U.S. EPA ECHO) Agency record
Severity 1.5
Txi Operations Lp / Txi Mill Creek Crushed Stone Plant, Mill Creek
NPDES wastewater discharge permit.
EPA FRS registry ID 110018859341 (U.S. EPA ECHO) Agency record
Severity 1.5
Wapanucka Oolitic Limestone Quarry, Bromide
NPDES wastewater discharge permit.
EPA FRS registry ID 110037271519 (U.S. EPA ECHO) Agency record
Severity 1.5
Arbuckle Aggregates, Llc-Mill Creek, Mill Creek
NPDES wastewater discharge permit.
EPA FRS registry ID 110039184174 (U.S. EPA ECHO) Agency record
Severity 1.5
Heildelberg Materials Southwest Agg Llc -Mill Creek Quarry, Troy
NPDES wastewater discharge permit.
EPA FRS registry ID 110044270801 (U.S. EPA ECHO) Agency record
Severity 1.5
Chickasaw Hotel And Casino, Tishomingo
NPDES wastewater discharge permit.
EPA FRS registry ID 110070048271 (U.S. EPA ECHO) Agency record
Severity 1.5
Tishomingo Event Center, Tishomingo
NPDES wastewater discharge permit.
EPA FRS registry ID 110071077105 (U.S. EPA ECHO) Agency record
Severity 1.5
Tishomingo Event Center Parking, Tishomingo
NPDES wastewater discharge permit.
EPA FRS registry ID 110071541287 (U.S. EPA ECHO) Agency record
Severity 1.5
Tishomingo Child Development Center, Tishomingo
NPDES wastewater discharge permit.
EPA FRS registry ID 110071644112 (U.S. EPA ECHO) Agency record
Severity 1.5
E-Z Mart # 4222, Ravia
NPDES wastewater discharge permit.
EPA FRS registry ID 110071945987 (U.S. EPA ECHO) Agency record
Severity 1.5
Amrize South Central, Coleman
NPDES wastewater discharge permit.
EPA FRS registry ID 110072002437 (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 Johnston County

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