SD / county FIPS 46105 / county research

Perkins County, South Dakota: environmental and disease records

Cancer mortality in Perkins County is 130 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 18 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (5), Auto repair or body shop (mapped facility) (3), Gas station (mapped facility) (3). EPA AirToxScreen estimates a lifetime cancer risk from outdoor air toxics of 10 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: 45.4875, -102.4753.

How this county ranks in South Dakota

View on the heat map Scan an address in this county

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 Perkins County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
All cancer	Deaths	130	143.2	0.91x	88.8 to 188.9	2020-2024
All cancer	New cases	317.6	453.4	0.7x	243 to 411	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 Perkins County
Measure	County	U.S. median	Difference	Unit
Premature death	6,533.9	9,842.6	-34%	years of life lost before age 75 per 100,000
Life expectancy	78.7	75.3	+5%	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	n/a	96.9	n/a	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: 10 in a million. EPA treats 100 in a million as the upper end of acceptable risk and 1 in a million as the goal.

Formaldehyde9.07 per million
Carbon Tetrachloride2.81 per million
Acetaldehyde0.62 per million
Benzene0.47 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

NPDES wastewater discharge permit5
Auto repair or body shop (mapped facility)3
Gas station (mapped facility)3
Rail grade crossing3
Landfill (mapped facility)2
Public airport1
Commercial airport1

Highest-severity records

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

Bison Stp, Bison
NPDES wastewater discharge permit.
EPA FRS registry ID 110039909784 (U.S. EPA ECHO) Agency record
Severity 3
Bison Muni, Bison
Public airport. O.
Record ID 6V5 (FAA / U.S. DOT)
Severity 2
Lemmon Muni, Lemmon
Commercial airport. O.
Record ID LEM (FAA / U.S. DOT)
Severity 2
Northwest South Dakota Regional Landfill
Landfill (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/1313879138 (OpenStreetMap contributors) Agency record
Severity 2
Landfill
Landfill (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/498306627 (OpenStreetMap contributors) Agency record
Severity 2
Wheeler Manufacturing Co, Inc., Lemmon
NPDES wastewater discharge permit.
EPA FRS registry ID 110000428056 (U.S. EPA ECHO) Agency record
Severity 1.5
Nwsd Regional Landfill Assoc., Lemmon
NPDES wastewater discharge permit.
EPA FRS registry ID 110009705550 (U.S. EPA ECHO) Agency record
Severity 1.5
Lemmon City Of, Lemmon
NPDES wastewater discharge permit.
EPA FRS registry ID 110011043209 (U.S. EPA ECHO) Agency record
Severity 1.5
Wastewater Infrastructure Improvements Phase I, Bison
NPDES wastewater discharge permit.
EPA FRS registry ID 110071710268 (U.S. EPA ECHO) Agency record
Severity 1.5
Main Street, Lemmon
Rail grade crossing.
Record ID 393971W (Federal Railroad Administration)
Severity 1.3
Private, Lemmon
Rail grade crossing.
Record ID 393977M (Federal Railroad Administration)
Severity 1.3
White Butte Road W, Lemmon
Rail grade crossing.
Record ID 393982J (Federal Railroad Administration)
Severity 1.3
Rock'n Rod's Repair
Auto repair or body shop (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID node/12524607948 (OpenStreetMap contributors) Agency record
Severity 1
Bison Grain Company, Bison
Gas station (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID node/14020962418 (OpenStreetMap contributors) Agency record
Severity 1
Jerry's Repair
Auto repair or body shop (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/1252994528 (OpenStreetMap contributors) Agency record
Severity 1
Conoco
Gas station (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/1353505947 (OpenStreetMap contributors) Agency record
Severity 1
Cenex
Gas station (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/1353505950 (OpenStreetMap contributors) Agency record
Severity 1
K & R AUto Body, Lemmon
Auto repair or body shop (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/649744692 (OpenStreetMap contributors) Agency record
Severity 1

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 Perkins 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 Perkins 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.

Scan an address in Perkins County View on the heat map All South Dakota counties