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Spink County, South Dakota: environmental and disease records

Cancer mortality in Spink County is 134.5 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 144 regulated facilities, sites and hazards inside the county, led by Rail grade crossing (97), NPDES wastewater discharge permit (27), Brownfield property (4). 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: 44.9453, -98.3497.

How this county ranks in South Dakota

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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 Spink County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Bladder	New cases	27.1	18.7	1.45x	15.3 to 47.2	2019-2023
Melanoma of the skin	New cases	33.5	23.8	1.41x	18 to 58.3	2019-2023
All cancer	Deaths	134.5	143.2	0.94x	103 to 174	2020-2024
All cancer	New cases	425.6	453.4	0.94x	366.2 to 493.1	2019-2023
Lung & bronchus	New cases	32.6	51.8	0.63x	18.1 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 Spink County
Measure	County	U.S. median	Difference	Unit
Premature death	8,812.6	9,842.6	-10%	years of life lost before age 75 per 100,000
Life expectancy	77.2	75.3	+3%	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	91.5	96.9	-6%	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.

Formaldehyde11.73 per million
Carbon Tetrachloride2.93 per million
Acetaldehyde0.92 per million
Benzene0.55 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

Rail grade crossing97
NPDES wastewater discharge permit27
Brownfield property4
Gas station (mapped facility)4
Major air pollution source2
Air permit holder (minor source)2
Public airport1
Large greenhouse gas emitter1
Small hazardous waste generator1
Heliport1
Landfill (mapped facility)1
Scrapyard (mapped facility)1
TRI reporting facility1
Toxic chemical release facility (TRI)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.

Redfield Energy Llc, Redfield
Toxic chemical release facility (TRI). Chemicals: Acetaldehyde, n-Hexane, Acrolein, Methanol and 4 more. Reports carcinogens. 79,702 lbs released over 5 years.
TRI facility ID 57469RDFLD38651 (U.S. EPA Toxics Release Inventory)
Severity 8.3
Redfield Energy, Llc, Redfield
TRI reporting facility.
EPA FRS registry ID 110033218881 (U.S. EPA ECHO) Agency record
Severity 8
Redfield Energy, Llc, Redfield
Major air pollution source.
EPA FRS registry ID 110033218881 (U.S. EPA ECHO) Agency record
Severity 5.5
Redfield Energy, Llc, Redfield
NPDES wastewater discharge permit.
EPA FRS registry ID 110033218881 (U.S. EPA ECHO) Agency record
Severity 5
Redfield Energy, Llc, Redfield
Large greenhouse gas emitter.
EPA FRS registry ID 110033218881 (U.S. EPA ECHO) Agency record
Severity 4.5
Northwestern Energy (Redfield), Redfield
Major air pollution source.
EPA FRS registry ID 110007186222 (U.S. EPA ECHO) Agency record
Severity 3.5
Sunrise Addition, Redfield
Brownfield property.
EPA FRS registry ID 110015335350 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Former Labris Building, Turton
Brownfield property.
EPA FRS registry ID 110071964269 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Former Railroad Property, Redfield
Brownfield property.
EPA FRS registry ID 110071964281 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Old Lumber Yard, Frankfort
Brownfield property.
EPA FRS registry ID 110071972719 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Northville - Town Of, Northville
NPDES wastewater discharge permit.
EPA FRS registry ID 110015598138 (U.S. EPA ECHO) Agency record
Severity 2.3
Conde, Town Of, Conde
NPDES wastewater discharge permit.
EPA FRS registry ID 110009791840 (U.S. EPA ECHO) Agency record
Severity 2
Mellette, City Of, Mellette
NPDES wastewater discharge permit.
EPA FRS registry ID 110009792028 (U.S. EPA ECHO) Agency record
Severity 2
Redfield Muni, Redfield
Public airport. O.
Record ID 1D8 (FAA / U.S. DOT)
Severity 2
Conde City Landfill, Conde
Landfill (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID relation/18265458 (OpenStreetMap contributors) Agency record
Severity 2
Hitchcock, Town Of, Hitchcock
NPDES wastewater discharge permit.
EPA FRS registry ID 110009790985 (U.S. EPA ECHO) Agency record
Severity 1.8
Ashton, Town Of, Ashton
NPDES wastewater discharge permit.
EPA FRS registry ID 110009791378 (U.S. EPA ECHO) Agency record
Severity 1.5
Tulare, Town Of, Tulare
NPDES wastewater discharge permit.
EPA FRS registry ID 110009791644 (U.S. EPA ECHO) Agency record
Severity 1.5
Sd Developmental Center, Redfield
NPDES wastewater discharge permit.
EPA FRS registry ID 110009791813 (U.S. EPA ECHO) Agency record
Severity 1.5
Frankfort, City Of, Frankfort
NPDES wastewater discharge permit.
EPA FRS registry ID 110009792073 (U.S. EPA ECHO) Agency record
Severity 1.5
Rdo Equipment Company, Redfield
Small hazardous waste generator.
EPA FRS registry ID 110023124288 (U.S. EPA ECHO) Agency record
Severity 1.5
Redfield, City Of, Redfield
NPDES wastewater discharge permit.
EPA FRS registry ID 110028183515 (U.S. EPA ECHO) Agency record
Severity 1.5
Turton, Town Of, Turton
NPDES wastewater discharge permit.
EPA FRS registry ID 110028183846 (U.S. EPA ECHO) Agency record
Severity 1.5
Binger'S Meat Processing, Mellette, City Of
NPDES wastewater discharge permit.
EPA FRS registry ID 110056407482 (U.S. EPA ECHO) Agency record
Severity 1.5
Hillside Hutterite Brethren, Doland
NPDES wastewater discharge permit.
EPA FRS registry ID 110070604484 (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 Spink County

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