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Sac County, Iowa: environmental and disease records

Cancer mortality in Sac County is 134.8 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 123 regulated facilities, sites and hazards inside the county, led by Rail grade crossing (51), Air permit holder (minor source) (25), Industrial wastewater discharge (12). 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: 42.3854, -95.0899.

How this county ranks in Iowa

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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 Sac County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Melanoma of the skin	New cases	44.4	23.8	1.87xSignificant	27.3 to 68.2	2019-2023
Non-Hodgkin lymphoma	New cases	32.9	18.5	1.78xSignificant	20.3 to 51.1	2019-2023
All cancer	New cases	527.9	453.4	1.16xSignificant	472.7 to 588.4	2019-2023
Bladder	New cases	19.3	18.7	1.03x	10.9 to 33.2	2019-2023
All cancer	Deaths	134.8	143.2	0.94x	110.8 to 163.6	2020-2024
Lung & bronchus	New cases	47	51.8	0.91x	32.4 to 67	2019-2023
Lung & bronchus	Deaths	22.2	30.2	0.74x	12.7 to 37.2	2020-2024

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 Sac County
Measure	County	U.S. median	Difference	Unit
Premature death	6,910.3	9,842.6	-30%	years of life lost before age 75 per 100,000
Life expectancy	77.1	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	74.3	96.9	-23%	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.

Formaldehyde13.7 per million
Carbon Tetrachloride2.92 per million
Acetaldehyde1.15 per million
Benzene0.62 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

Rail grade crossing51
Air permit holder (minor source)25
Industrial wastewater discharge12
NPDES wastewater discharge permit11
Gas station (mapped facility)10
TRI reporting facility3
Toxic chemical release facility (TRI)3
Wind power plant2
Wastewater plant (mapped facility)2
Public airport1
Commercial airport1
Auto repair or body shop (mapped facility)1
Heliport1

Highest-severity records

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

Western Iowa Energy, Wall Lake
TRI reporting facility.
EPA FRS registry ID 110024583057 (U.S. EPA ECHO) Agency record
Severity 7.1
Western Iowa Energy Llc, Wall Lake
Toxic chemical release facility (TRI). Chemicals: Methanol. 8,358 lbs released over 5 years.
TRI facility ID 51466WSTRN122SC (U.S. EPA Toxics Release Inventory)
Severity 6
Sac City Wwtp, Sac City
NPDES wastewater discharge permit.
EPA FRS registry ID 110039992032 (U.S. EPA ECHO) Agency record
Severity 4.5
Evapco - Lakeview, Lake View
Toxic chemical release facility (TRI). Chemicals: Nickel, Chromium, Manganese. Reports carcinogens.
TRI facility ID 5145WVPCXX925QU (U.S. EPA Toxics Release Inventory)
Severity 4.5
Hancock Concrete Products, Lake View
TRI reporting facility.
EPA FRS registry ID 110070277243 (U.S. EPA ECHO) Agency record
Severity 4.1
Sac City Wwtp, Sac City
Air permit holder (minor source).
EPA FRS registry ID 110039992032 (U.S. EPA ECHO) Agency record
Severity 4
Evapco, Lake View
TRI reporting facility.
EPA FRS registry ID 110070323045 (U.S. EPA ECHO) Agency record
Severity 4
Lake View Sewage Treat Plant (Stp), Lake View
NPDES wastewater discharge permit.
EPA FRS registry ID 110010033560 (U.S. EPA ECHO) Agency record
Severity 3.8
Hancock Concrete Products, Lake View
Toxic chemical release facility (TRI). Chemicals: Lead compounds, Mercury compounds. 6 lbs released over 5 years.
TRI facility ID 5145WHNCCK218SL (U.S. EPA Toxics Release Inventory)
Severity 3.6
Schaller City Of Stp, Schaller
NPDES wastewater discharge permit. Penalties $2,000.
EPA FRS registry ID 110009724307 (U.S. EPA ECHO) Agency record
Severity 3.3
Wall Lake City Of Stp, Wall Lake
NPDES wastewater discharge permit.
EPA FRS registry ID 110010034890 (U.S. EPA ECHO) Agency record
Severity 3.3
Western Iowa Energy, Wall Lake
NPDES wastewater discharge permit.
EPA FRS registry ID 110024583057 (U.S. EPA ECHO) Agency record
Severity 3
Wall Lake City Of Stp, Wall Lake
Industrial wastewater discharge. Violation Identified.
NPDES permit IA0033065: (U.S. EPA NPDES)
Severity 2.9
Early City Of Stp, Early
Industrial wastewater discharge. Violation Identified.
NPDES permit IA0035904: (U.S. EPA NPDES)
Severity 2.9
Agrium - Early Terminal, Early
NPDES wastewater discharge permit.
EPA FRS registry ID 110000722692 (U.S. EPA ECHO) Agency record
Severity 2.5
Western Iowa Energy, Wall Lake
Air permit holder (minor source).
EPA FRS registry ID 110024583057 (U.S. EPA ECHO) Agency record
Severity 2.5
Early City Of Stp, Early
NPDES wastewater discharge permit.
EPA FRS registry ID 110010034417 (U.S. EPA ECHO) Agency record
Severity 2
Sac City Muni, Sac City
Commercial airport. O.
Record ID SKI (FAA / U.S. DOT)
Severity 2
Wastewater Plant
Wastewater plant (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/921343371 (OpenStreetMap contributors) Agency record
Severity 2
Wastewater Plant
Wastewater plant (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/921343373 (OpenStreetMap contributors) Agency record
Severity 2
Auburn City Of Stp, Auburn
NPDES wastewater discharge permit.
EPA FRS registry ID 110010032801 (U.S. EPA ECHO) Agency record
Severity 1.8
Odebolt City Of Stp, Odebolt
NPDES wastewater discharge permit.
EPA FRS registry ID 110010035176 (U.S. EPA ECHO) Agency record
Severity 1.8
Sfi, Inc., Nemaha
NPDES wastewater discharge permit.
EPA FRS registry ID 110030219626 (U.S. EPA ECHO) Agency record
Severity 1.5
Greenlee Kyle, Sac City
NPDES wastewater discharge permit.
EPA FRS registry ID 110043869436 (U.S. EPA ECHO) Agency record
Severity 1.5
Western Iowa Energy, Llc, Wall Lake
Industrial wastewater discharge. No Violation Identified.
NPDES permit IA0079855: (U.S. EPA NPDES)
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 Sac County

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