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Davis County, Iowa: environmental and disease records

Cancer mortality in Davis County is 161.1 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 29 regulated facilities, sites and hazards inside the county, led by Industrial wastewater discharge (8), NPDES wastewater discharge permit (8), Air permit holder (minor source) (6). 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: 40.7459, -92.4086.

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 Davis County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Leukemia	New cases	25.8	14.5	1.78xSignificant	14.6 to 43	2019-2023
Bladder	New cases	27.8	18.7	1.49x	16 to 45.5	2019-2023
Lung & bronchus	Deaths	37.6	30.2	1.25x	23.8 to 57.4	2020-2024
Lung & bronchus	New cases	62.9	51.8	1.21x	44.1 to 87.7	2019-2023
All cancer	Deaths	161.1	143.2	1.13x	128.9 to 199.3	2020-2024
All cancer	New cases	504.8	453.4	1.11x	445.4 to 570.1	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 Davis County
Measure	County	U.S. median	Difference	Unit
Premature death	8,767.8	9,842.6	-11%	years of life lost before age 75 per 100,000
Life expectancy	77.3	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	88.2	96.9	-9%	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.

Formaldehyde16.25 per million
Carbon Tetrachloride2.95 per million
Acetaldehyde1.51 per million
Benzene0.67 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

Industrial wastewater discharge8
NPDES wastewater discharge permit8
Air permit holder (minor source)6
Public airport1
Auto repair or body shop (mapped facility)1
Heliport1
Gas power plant1
Solar power plant1
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.

Dnr Lake Wapello State Park, Drakesville
NPDES wastewater discharge permit.
EPA FRS registry ID 110010829050 (U.S. EPA ECHO) Agency record
Severity 4
Chevron Phillips Dba Plexco, Bloomfield
TRI reporting facility.
EPA FRS registry ID 110013287228 (U.S. EPA ECHO) Agency record
Severity 4
Bloomfield Wwtp (Main), Bloomfield
NPDES wastewater discharge permit.
EPA FRS registry ID 110002040096 (U.S. EPA ECHO) Agency record
Severity 3.8
Bloomfield, Bloomfield
Gas power plant.
Record ID 1127 (U.S. Energy Information Administration)
Severity 3
Chevron Phillips Chemical Co Performance Pipe Div, Bloomfield
Toxic chemical release facility (TRI). Chemicals: Lead compounds, Lead And Lead Compounds.
TRI facility ID 52537CHVRN412W2 (U.S. EPA Toxics Release Inventory)
Severity 3
Drakesville, City Of-(Rathbun Regional Water Assoc.), Drakesville
NPDES wastewater discharge permit.
EPA FRS registry ID 110010028335 (U.S. EPA ECHO) Agency record
Severity 2.3
Floris, City Of- (Wapello Rura, Floris
NPDES wastewater discharge permit.
EPA FRS registry ID 110010028772 (U.S. EPA ECHO) Agency record
Severity 2.3
Davis County Care Facility (Now Sunset Haven), Bloomfield
NPDES wastewater discharge permit.
EPA FRS registry ID 110044852898 (U.S. EPA ECHO) Agency record
Severity 2
Bloomfield Muni, Bloomfield
Public airport. O.
Record ID 4K6 (FAA / U.S. DOT)
Severity 2
Pulaski City Of Stp, Pulaski
NPDES wastewater discharge permit.
EPA FRS registry ID 110036166369 (U.S. EPA ECHO) Agency record
Severity 1.8
Southern Iowa Container, Llc, Bloomfield
NPDES wastewater discharge permit.
EPA FRS registry ID 110064514510 (U.S. EPA ECHO) Agency record
Severity 1.5
City Of Bloomfield, Bloomfield
NPDES wastewater discharge permit.
EPA FRS registry ID 110069999851 (U.S. EPA ECHO) Agency record
Severity 1.5
Davis County Hospital, Bloomfield
Air permit holder (minor source).
EPA FRS registry ID 110005767107 (U.S. EPA ECHO) Agency record
Severity 1
Performance Pipe - Bloomfield, Bloomfield
Air permit holder (minor source).
EPA FRS registry ID 110022575499 (U.S. EPA ECHO) Agency record
Severity 1
City Of Bloomfield, Bloomfield
Air permit holder (minor source).
EPA FRS registry ID 110036187177 (U.S. EPA ECHO) Agency record
Severity 1
Ideal Ready Mix Co, Inc - Bloomfield, Bloomfield
Air permit holder (minor source).
EPA FRS registry ID 110040470914 (U.S. EPA ECHO) Agency record
Severity 1
Jet Gas Corp, Pulaski
Air permit holder (minor source).
EPA FRS registry ID 110041630036 (U.S. EPA ECHO) Agency record
Severity 1
Troy Elevator Inc, Bloomfield
Air permit holder (minor source).
EPA FRS registry ID 110043595204 (U.S. EPA ECHO) Agency record
Severity 1
One Nine Performance and Repair
Auto repair or body shop (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID node/13577886271 (OpenStreetMap contributors) Agency record
Severity 1
Bloomfield City Of Stp (Main), Bloomfield
Industrial wastewater discharge. Violation Identified.
NPDES permit IA0047929:001 (U.S. EPA NPDES)
Severity 1
Davis County Care Facility (Now Sunset Haven), Bloomfield
Industrial wastewater discharge. No Violation Identified.
NPDES permit IA0065846:001 (U.S. EPA NPDES)
Severity 1
Floris, City Of- (Wapello Rural Water Assn.), Floris
Industrial wastewater discharge. Violation Identified.
NPDES permit IA0074047:001 (U.S. EPA NPDES)
Severity 1
Pulaski, City Of Stp, Pulaski
Industrial wastewater discharge. Violation Identified.
NPDES permit IA0074802: (U.S. EPA NPDES)
Severity 1
Pulaski, City Of Stp, Pulaski
Industrial wastewater discharge. Violation Identified.
NPDES permit IA0074802:001 (U.S. EPA NPDES)
Severity 1
Drakesville, City Of (Rathbun Regional Water Assoc.), Drakesville
Industrial wastewater discharge. Violation Identified.
NPDES permit IA0075612: (U.S. EPA NPDES)
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 Davis 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 Davis 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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