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Washakie County, Wyoming: environmental and disease records

Cancer mortality in Washakie County is 144 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 127 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (59), Rail grade crossing (41), Air permit holder (minor source) (7). 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: 43.8352, -107.6604.

How this county ranks in Wyoming

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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 Washakie County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Kidney & renal pelvis	New cases	29.1	17.9	1.63x	15.8 to 50.1	2019-2023
All cancer	Deaths	144	143.2	1.01x	114.7 to 179.9	2020-2024
Lung & bronchus	Deaths	26.1	30.2	0.86x	15 to 44.2	2020-2024
All cancer	New cases	381.6	453.4	0.84x	330.2 to 439.7	2019-2023
Lung & bronchus	New cases	39	51.8	0.75x	24.4 to 60.7	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 Washakie County
Measure	County	U.S. median	Difference	Unit
Premature death	9,591.3	9,842.6	-3%	years of life lost before age 75 per 100,000
Life expectancy	76.1	75.3	+1%	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	100.3	96.9	+3%	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.

Formaldehyde8.83 per million
Carbon Tetrachloride2.63 per million
Acetaldehyde0.77 per million
Pahpom0.63 per million

EPA Air Quality Index 2025

Monitored on 355 days: 342 good, 0 unhealthy for sensitive groups or worse. Median AQI 8, peak 68.

Regulated facilities, sites and hazards by type

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

NPDES wastewater discharge permit59
Rail grade crossing41
Air permit holder (minor source)7
Gas station (mapped facility)4
Major air pollution source3
Small hazardous waste generator3
Toxic chemical release facility (TRI)2
EPA air quality monitor1
Public airport1
Commercial airport1
Auto repair or body shop (mapped facility)1
Large greenhouse gas emitter1
Hazardous waste transporter1
Heliport1
TRI reporting facility1

Highest-severity records

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

Crown Beverage Packaging, Worland
Toxic chemical release facility (TRI). Chemicals: Certain glycol ethers, n-Butyl alcohol, Hydrogen fluoride, Manganese And Manganese Compounds and 2 more. Reports carcinogens. 1,373,960 lbs released over 5 years.
TRI facility ID 82401CRWNC4THST (U.S. EPA Toxics Release Inventory)
Severity 9.2
Wyoming Sugar Co, Worland
Toxic chemical release facility (TRI). Chemicals: Ammonia. 132,000 lbs released over 5 years.
TRI facility ID 82401HLLYS300FI (U.S. EPA Toxics Release Inventory)
Severity 6.9
Crown Cork & Seal Company Inc, Worland
TRI reporting facility.
EPA FRS registry ID 110010856341 (U.S. EPA ECHO) Agency record
Severity 6.5
14 Mile Pit, (Unknown City)
NPDES wastewater discharge permit.
EPA FRS registry ID 110055163497 (U.S. EPA ECHO) Agency record
Severity 4.5
Blue Pit, (Unknown City)
NPDES wastewater discharge permit.
EPA FRS registry ID 110055163503 (U.S. EPA ECHO) Agency record
Severity 4.5
Tom'S Pit, (Unknown City)
NPDES wastewater discharge permit.
EPA FRS registry ID 110055163521 (U.S. EPA ECHO) Agency record
Severity 4.5
U.S. Pit No 1, (Unknown City)
NPDES wastewater discharge permit.
EPA FRS registry ID 110055163567 (U.S. EPA ECHO) Agency record
Severity 4.5
Tollman Pit, Unknown
NPDES wastewater discharge permit.
EPA FRS registry ID 110055168928 (U.S. EPA ECHO) Agency record
Severity 4.5
Beta Usa Lease, (Unknown City)
NPDES wastewater discharge permit.
EPA FRS registry ID 110055194846 (U.S. EPA ECHO) Agency record
Severity 4.5
Nine Iron Pit, Unknown
NPDES wastewater discharge permit.
EPA FRS registry ID 110055196755 (U.S. EPA ECHO) Agency record
Severity 4.5
Hall'S Pit, (Unknown City)
NPDES wastewater discharge permit.
EPA FRS registry ID 110055210249 (U.S. EPA ECHO) Agency record
Severity 4.5
Griemsman Feedlot, Worland
NPDES wastewater discharge permit.
EPA FRS registry ID 110064599625 (U.S. EPA ECHO) Agency record
Severity 4.5
Worland - Manderson (West River Road); Wydot Stp-2202023, (Unknown City)
NPDES wastewater discharge permit.
EPA FRS registry ID 110064613798 (U.S. EPA ECHO) Agency record
Severity 4.5
City Of Worland Gravel Pit (Lqd Sp0827), (Unknown City)
NPDES wastewater discharge permit.
EPA FRS registry ID 110064639583 (U.S. EPA ECHO) Agency record
Severity 4.5
Washakie County Road And Bridge Shop (Worland), Worland
NPDES wastewater discharge permit.
EPA FRS registry ID 110070529094 (U.S. EPA ECHO) Agency record
Severity 4.5
Southeast Nowood Field, Gout A&B Battery, Unknown
NPDES wastewater discharge permit.
EPA FRS registry ID 110055194677 (U.S. EPA ECHO) Agency record
Severity 4.3
Cottonwood Creek- Tensleep Battery, (Unknown City)
NPDES wastewater discharge permit.
EPA FRS registry ID 110055197460 (U.S. EPA ECHO) Agency record
Severity 4.3
Wyoming Sugar Worland Plant, Worland
Major air pollution source.
EPA FRS registry ID 110000468128 (U.S. EPA ECHO) Agency record
Severity 3.8
Worland Compressor Station (Wbi Energy Transmission), Worland
Major air pollution source.
EPA FRS registry ID 110007902056 (U.S. EPA ECHO) Agency record
Severity 3.5
Crown Cork & Seal Company Inc, Worland
Major air pollution source.
EPA FRS registry ID 110010856341 (U.S. EPA ECHO) Agency record
Severity 3.5
Ten Sleep Wastewater Lagoons, Ten Sleep
NPDES wastewater discharge permit.
EPA FRS registry ID 110055171503 (U.S. EPA ECHO) Agency record
Severity 3.5
Wyoming Sugar Worland Plant, Worland
NPDES wastewater discharge permit.
EPA FRS registry ID 110000468128 (U.S. EPA ECHO) Agency record
Severity 3.3
White Pit, Unknown
NPDES wastewater discharge permit.
EPA FRS registry ID 110055168875 (U.S. EPA ECHO) Agency record
Severity 3.3
Crown Cork & Seal Company Inc, Worland
NPDES wastewater discharge permit.
EPA FRS registry ID 110010856341 (U.S. EPA ECHO) Agency record
Severity 3
Worland Wastewater Lagoon, Worland
NPDES wastewater discharge permit.
EPA FRS registry ID 110059806642 (U.S. EPA ECHO) Agency record
Severity 3

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 Washakie County

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