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Hanson County, South Dakota: environmental and disease records

Cancer mortality in Hanson County is 271.1 deaths per 100,000 people per year against a U.S. rate of 143.2, a statistically significant excess. Federal databases place 42 regulated facilities, sites and hazards inside the county, led by Rail grade crossing (25), NPDES wastewater discharge permit (12), Air permit holder (minor source) (3). 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: 43.6836, -97.7866.

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 Hanson County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
All cancer	Deaths	271.1	143.2	1.89xSignificant	166.5 to 408.9	2020-2024
All cancer	New cases	406.3	453.4	0.9x	295.8 to 541.7	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 Hanson County
Measure	County	U.S. median	Difference	Unit
Premature death	4,906.3	9,842.6	-50%	years of life lost before age 75 per 100,000
Life expectancy	78.1	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	81	96.9	-16%	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.

Formaldehyde12.91 per million
Carbon Tetrachloride2.92 per million
Acetaldehyde1.06 per million
Benzene0.57 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

Rail grade crossing25
NPDES wastewater discharge permit12
Air permit holder (minor source)3
Brownfield property1
Gas station (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.

Mitchell, City Of, Mitchell
NPDES wastewater discharge permit.
EPA FRS registry ID 110009790654 (U.S. EPA ECHO) Agency record
Severity 3.8
Emery Commercial Building, Emery
Brownfield property.
EPA FRS registry ID 110071971773 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Rosedale Hutterian Brethren, Mitchell
NPDES wastewater discharge permit.
EPA FRS registry ID 110030487952 (U.S. EPA ECHO) Agency record
Severity 2.3
Emery, City Of, Emery
NPDES wastewater discharge permit.
EPA FRS registry ID 110039909944 (U.S. EPA ECHO) Agency record
Severity 2
Rosedale Hutterian Brethren, Mitchell
Air permit holder (minor source).
EPA FRS registry ID 110030487952 (U.S. EPA ECHO) Agency record
Severity 1.8
Alexandria, City Of, Alexandria
NPDES wastewater discharge permit.
EPA FRS registry ID 110006692294 (U.S. EPA ECHO) Agency record
Severity 1.5
Spencer, Town Of, Spencer
NPDES wastewater discharge permit.
EPA FRS registry ID 110028183481 (U.S. EPA ECHO) Agency record
Severity 1.5
Hanson Rural Water System (Wtp), Emery
NPDES wastewater discharge permit.
EPA FRS registry ID 110064629825 (U.S. EPA ECHO) Agency record
Severity 1.5
Emery Gym Addition, Emery
NPDES wastewater discharge permit.
EPA FRS registry ID 110071323922 (U.S. EPA ECHO) Agency record
Severity 1.5
Northeast Subdivision Extensions, Alexandria
NPDES wastewater discharge permit.
EPA FRS registry ID 110071324435 (U.S. EPA ECHO) Agency record
Severity 1.5
Utility Improvements, Alexandria
NPDES wastewater discharge permit.
EPA FRS registry ID 110071994126 (U.S. EPA ECHO) Agency record
Severity 1.5
Jerry Moench Wetlands Dam Project, Alexandria
NPDES wastewater discharge permit.
EPA FRS registry ID 110072004342 (U.S. EPA ECHO) Agency record
Severity 1.5
Elm West, Ethan
NPDES wastewater discharge permit.
EPA FRS registry ID 110072157656 (U.S. EPA ECHO) Agency record
Severity 1.5
Pcn 05fa, Alexandria
NPDES wastewater discharge permit.
EPA FRS registry ID 110072180337 (U.S. EPA ECHO) Agency record
Severity 1.5
Millbrook Hutterite Brethren, Mitchell
Air permit holder (minor source).
EPA FRS registry ID 110061079416 (U.S. EPA ECHO) Agency record
Severity 1
Oaklane Hutterite Brethren, Alexandria
Air permit holder (minor source).
EPA FRS registry ID 110061079826 (U.S. EPA ECHO) Agency record
Severity 1
Private, Emery
Rail grade crossing.
Record ID 385981G (Federal Railroad Administration)
Severity 1
3rd Street, Emery
Rail grade crossing.
Record ID 385982N (Federal Railroad Administration)
Severity 1
429th Avenue, Emery
Rail grade crossing.
Record ID 385984C (Federal Railroad Administration)
Severity 1
Not On Nstri, Emery
Rail grade crossing.
Record ID 385985J (Federal Railroad Administration)
Severity 1
Private, Emery
Rail grade crossing.
Record ID 385986R (Federal Railroad Administration)
Severity 1
427th Avenue, Emery
Rail grade crossing.
Record ID 385987X (Federal Railroad Administration)
Severity 1
260th Street, Emery
Rail grade crossing.
Record ID 385988E (Federal Railroad Administration)
Severity 1
426th Avenue, Emery
Rail grade crossing.
Record ID 385989L (Federal Railroad Administration)
Severity 1
425th Avenue, Emery
Rail grade crossing.
Record ID 385990F (Federal Railroad Administration)
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 Hanson 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 Hanson 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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