SD / county FIPS 46053 / county research

Gregory County, South Dakota: environmental and disease records

Cancer mortality in Gregory County is 149.3 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 22 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (8), Gas station (mapped facility) (6), Public airport (2). 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: 43.2494, -99.2429.

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 Gregory County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
All cancer	Deaths	149.3	143.2	1.04x	107 to 204.8	2020-2024
All cancer	New cases	460.6	453.4	1.02x	381.9 to 552.6	2019-2023
Lung & bronchus	New cases	46.6	51.8	0.9x	27 to 79.7	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 Gregory County
Measure	County	U.S. median	Difference	Unit
Premature death	13,035.2	9,842.6	+32%	years of life lost before age 75 per 100,000
Life expectancy	73.7	75.3	-2%	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	87.6	96.9	-10%	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.

Formaldehyde12.01 per million
Carbon Tetrachloride2.84 per million
Acetaldehyde0.86 per million
Benzene0.42 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

NPDES wastewater discharge permit8
Gas station (mapped facility)6
Public airport2
Auto repair or body shop (mapped facility)2
Brownfield property2
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.

Avera Hospital - Gregory, Gregory
Brownfield property.
EPA FRS registry ID 110071975448 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Clinic Building - Gregory, Gregory
Brownfield property.
EPA FRS registry ID 110071978709 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Fairfax - Town Of, Fairfax
NPDES wastewater discharge permit.
EPA FRS registry ID 110009791314 (U.S. EPA ECHO) Agency record
Severity 2.8
Gregory Muni/Flynn Fld, Gregory
Public airport. O.
Record ID 9D1 (FAA / U.S. DOT)
Severity 2
Bonesteel- City Of, Bonesteel
NPDES wastewater discharge permit.
EPA FRS registry ID 110070163182 (U.S. EPA ECHO) Agency record
Severity 1.8
Gregory- City Of__________(E), Gregory
NPDES wastewater discharge permit.
EPA FRS registry ID 110012365804 (U.S. EPA ECHO) Agency record
Severity 1.5
Burke- City Of, Burke
NPDES wastewater discharge permit.
EPA FRS registry ID 110012374778 (U.S. EPA ECHO) Agency record
Severity 1.5
Gregory, City Of (Wtp), Gregory
NPDES wastewater discharge permit.
EPA FRS registry ID 110064594531 (U.S. EPA ECHO) Agency record
Severity 1.5
Gregory Utility Improvements, Gregory
NPDES wastewater discharge permit.
EPA FRS registry ID 110071960258 (U.S. EPA ECHO) Agency record
Severity 1.5
Pcn 067v, Fairfax
NPDES wastewater discharge permit.
EPA FRS registry ID 110072200442 (U.S. EPA ECHO) Agency record
Severity 1.5
Pcn 05x0, Burke
NPDES wastewater discharge permit.
EPA FRS registry ID 110072249401 (U.S. EPA ECHO) Agency record
Severity 1.5
Fuel Station
Gas station (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID node/11795670727 (OpenStreetMap contributors) Agency record
Severity 1
Sinclair
Gas station (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID node/11800363920 (OpenStreetMap contributors) Agency record
Severity 1
Phillips 66
Gas station (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID node/11800363921 (OpenStreetMap contributors) Agency record
Severity 1
Ken's Body Shop
Auto repair or body shop (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID node/12326228725 (OpenStreetMap contributors) Agency record
Severity 1
Brumbaugh's Junkyard
Scrapyard (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID node/8150109902 (OpenStreetMap contributors) Agency record
Severity 1
Fuel Station
Gas station (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID node/9936574603 (OpenStreetMap contributors) Agency record
Severity 1
Fuel Station
Gas station (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID node/9936574604 (OpenStreetMap contributors) Agency record
Severity 1
Cenex
Gas station (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/1270731362 (OpenStreetMap contributors) Agency record
Severity 1
Scott's Auto Repair
Auto repair or body shop (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/1270731585 (OpenStreetMap contributors) Agency record
Severity 1
Selle, Bonesteel
Public airport. O.
Record ID SD30 (FAA / U.S. DOT)
Severity 0.5
Burke Hospital, Burke
Heliport. O.
Record ID SD58 (FAA / U.S. DOT)
Severity 0.5

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 Gregory 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 Gregory 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 Gregory County View on the heat map All South Dakota counties