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Clay County, Kansas: environmental and disease records

Cancer mortality in Clay County is 131.8 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 105 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (26), Industrial wastewater discharge (19), Rail grade crossing (19). 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: 39.3427, -97.1652.

How this county ranks in Kansas

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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 Clay County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Bladder	New cases	28.8	18.7	1.54x	16.2 to 48.5	2019-2023
Lung & bronchus	Deaths	40.8	30.2	1.35x	26.9 to 60.8	2020-2024
Melanoma of the skin	New cases	26.9	23.8	1.13x	14.7 to 46.3	2019-2023
Lung & bronchus	New cases	54.2	51.8	1.05x	37 to 77.9	2019-2023
All cancer	Deaths	131.8	143.2	0.92x	105.8 to 163.5	2020-2024
All cancer	New cases	416.4	453.4	0.92x	364.9 to 474	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 Clay County
Measure	County	U.S. median	Difference	Unit
Premature death	6,000.9	9,842.6	-39%	years of life lost before age 75 per 100,000
Life expectancy	78.2	75.3	+4%	years
Child mortality	n/a	59.8	n/a	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	104.6	96.9	+8%	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: 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.

Formaldehyde15.65 per million
Carbon Tetrachloride2.88 per million
Acetaldehyde1.27 per million
Benzene0.71 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

NPDES wastewater discharge permit26
Industrial wastewater discharge19
Rail grade crossing19
Air permit holder (minor source)16
Brownfield property7
Gas station (mapped facility)7
Wastewater plant (mapped facility)3
Major air pollution source2
Public airport1
Commercial airport1
Auto repair or body shop (mapped facility)1
Large greenhouse gas emitter1
Small hazardous waste generator1
Gas 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.

Clay Center, Clay Center
Major air pollution source.
EPA FRS registry ID 110001237929 (U.S. EPA ECHO) Agency record
Severity 3.5
Northern Natural Gas Co Clifton, Clifton
Major air pollution source.
EPA FRS registry ID 110003155870 (U.S. EPA ECHO) Agency record
Severity 3.5
Clay Center, Clay Center
Gas power plant.
Record ID 1270 (U.S. Energy Information Administration)
Severity 3
Weir Manufacturing, Clay Center
Brownfield property.
EPA FRS registry ID 110015334137 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Clay County Former Hwy Department, Clay Center
Brownfield property.
EPA FRS registry ID 110030560612 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Swift Building Bta Property, Clay Center
Brownfield property.
EPA FRS registry ID 110038764227 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Mckinley School Bta, Clay Center
Brownfield property.
EPA FRS registry ID 110071968547 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Clay Center Bta, Clay Center
Brownfield property.
EPA FRS registry ID 110071971298 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Clay County Museum, Clay Center
Brownfield property.
EPA FRS registry ID 110071977939 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Liberty Medical, Clay Center
Brownfield property.
EPA FRS registry ID 110071977940 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Wakefield, City Of (Wwtp), Wakefield
NPDES wastewater discharge permit.
EPA FRS registry ID 110011226306 (U.S. EPA ECHO) Agency record
Severity 2.8
Northern Natural Gas Co Clifton, Clifton
Large greenhouse gas emitter.
EPA FRS registry ID 110003155870 (U.S. EPA ECHO) Agency record
Severity 2.5
Clay Center Water Treatment Plant, Clay Center
Industrial wastewater discharge. Violation Identified.
NPDES permit KS0098477: (U.S. EPA NPDES)
Severity 2.2
Clay Center Sewage Plant, Clay Center
NPDES wastewater discharge permit.
EPA FRS registry ID 110009967811 (U.S. EPA ECHO) Agency record
Severity 2
Clay Center Muni, Clay Center
Commercial airport. O.
Record ID CYW (FAA / U.S. DOT)
Severity 2
City of Longford
Wastewater plant (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/1167230358 (OpenStreetMap contributors) Agency record
Severity 2
Wastewater Plant
Wastewater plant (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/1179640624 (OpenStreetMap contributors) Agency record
Severity 2
Wastewater Plant
Wastewater plant (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/880400815 (OpenStreetMap contributors) Agency record
Severity 2
Clay Center Muni, Clay Center
NPDES wastewater discharge permit.
EPA FRS registry ID 110039404837 (U.S. EPA ECHO) Agency record
Severity 1.8
Clay Center, Clay Center
NPDES wastewater discharge permit.
EPA FRS registry ID 110064230489 (U.S. EPA ECHO) Agency record
Severity 1.8
Usd 379 Mark A. Chapman Activity Complex, Clay Center
NPDES wastewater discharge permit.
EPA FRS registry ID 110003182760 (U.S. EPA ECHO) Agency record
Severity 1.5
Nelson Poultry Farm-Prairie View, Clay Center
NPDES wastewater discharge permit.
EPA FRS registry ID 110010799779 (U.S. EPA ECHO) Agency record
Severity 1.5
Clay Center Groundwater Remed Pws 2, Clay Center
NPDES wastewater discharge permit.
EPA FRS registry ID 110010837719 (U.S. EPA ECHO) Agency record
Severity 1.5
Morganville, City Of (Wwtp), Morganville
NPDES wastewater discharge permit.
EPA FRS registry ID 110011226440 (U.S. EPA ECHO) Agency record
Severity 1.5
Valley Fertilizer, Clay Center
NPDES wastewater discharge permit.
EPA FRS registry ID 110011532742 (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 Clay County

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