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San Juan County, Utah: environmental and disease records

Cancer mortality in San Juan County is 121 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 232 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (100), Wastewater plant (mapped facility) (25), Gas station (mapped facility) (23). 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: 37.7485, -109.7449.

How this county ranks in Utah

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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 San Juan County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Kidney & renal pelvis	New cases	22.5	17.9	1.26x	12.6 to 36.9	2019-2023
Melanoma of the skin	New cases	26	23.8	1.09x	15.5 to 41	2019-2023
All cancer	Deaths	121	143.2	0.84x	97.8 to 148.3	2020-2024
All cancer	New cases	370	453.4	0.82x	327.4 to 416.7	2019-2023
Lung & bronchus	New cases	24.4	51.8	0.47x	14.8 to 38	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 San Juan County
Measure	County	U.S. median	Difference	Unit
Premature death	14,025.2	9,842.6	+42%	years of life lost before age 75 per 100,000
Life expectancy	72.8	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	158.9	96.9	+64%	deaths per 100,000
Drug overdose deaths	24.9	28.6	-13%	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.

Formaldehyde8.82 per million
Carbon Tetrachloride2.46 per million
Acetaldehyde0.51 per million
Pahpom0.29 per million

EPA Air Quality Index 2025

Monitored on 361 days: 274 good, 1 unhealthy for sensitive groups or worse. Median AQI 44, peak 108.

Regulated facilities, sites and hazards by type

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

NPDES wastewater discharge permit100
Wastewater plant (mapped facility)25
Gas station (mapped facility)23
Industrial wastewater discharge23
Brownfield property13
Public airport12
Air permit holder (minor source)10
Major air pollution source6
Hazardous waste transporter3
TRI reporting facility3
Toxic chemical release facility (TRI)3
EPA air quality monitor2
Auto repair or body shop (mapped facility)2
Heliport2
Landfill (mapped facility)2
Commercial airport1
Wind power plant1
Superfund (NPL) site1

Highest-severity records

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

Monticello Mill Tailings (USDOE), Monticello
Superfund (NPL) site. Hazard Ranking System score 35.9. NPL Site.
EPA site ID UT3890090035 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Reladyne West Llc, Blanding
Toxic chemical release facility (TRI). Chemicals: Toluene, Xylene (mixed isomers), Polycyclic aromatic compounds, Benzene and 4 more. Reports carcinogens. 4,878 lbs released over 5 years.
TRI facility ID 8451WRLDYN1261S (U.S. EPA Toxics Release Inventory)
Severity 7.3
Lisbon Valley Mining Co Llc, La Sal
Toxic chemical release facility (TRI). Chemicals: Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Lead And Lead Compounds, Copper And Copper Compounds. 223,313 lbs released over 5 years.
TRI facility ID 84530LSBNV92SCU (U.S. EPA Toxics Release Inventory)
Severity 7.1
Lisbon Plant (Cci Paradox Midstream), La Sal
Major air pollution source. Penalties $24,000.
EPA FRS registry ID 110008176785 (U.S. EPA ECHO) Agency record
Severity 6.3
Lisbon Valley Mining Co Llc, La Sal
TRI reporting facility.
EPA FRS registry ID 110025331843 (U.S. EPA ECHO) Agency record
Severity 6.2
Moab Site Asphalt Plant Concrete Batch, Moab
Toxic chemical release facility (TRI). Chemicals: Lead, Polycyclic aromatic compounds. Reports carcinogens. 3 lbs released over 5 years.
TRI facility ID 8453WMBSTS511LD (U.S. EPA Toxics Release Inventory)
Severity 4.9
English Lease, Boundary Butte, San Juan County
NPDES wastewater discharge permit.
EPA FRS registry ID 110010134185 (U.S. EPA ECHO) Agency record
Severity 4.5
Monticello City Wastewater Treatment Plant, Monticello
NPDES wastewater discharge permit.
EPA FRS registry ID 110022416517 (U.S. EPA ECHO) Agency record
Severity 4.3
Moab Site Asphalt Plant Concrete Batch, Moab
TRI reporting facility.
EPA FRS registry ID 110002273432 (U.S. EPA ECHO) Agency record
Severity 4.1
Gouldings Lodge, Monument Valley
NPDES wastewater discharge permit.
EPA FRS registry ID 110010134363 (U.S. EPA ECHO) Agency record
Severity 4
Reladyne West, Blanding, Ut, Blanding
TRI reporting facility.
EPA FRS registry ID 110070550492 (U.S. EPA ECHO) Agency record
Severity 4
Northwest Pipeline - Moab Station, Moab
Major air pollution source.
EPA FRS registry ID 110007186883 (U.S. EPA ECHO) Agency record
Severity 3.5
Mobil Oil Company, Aneth
Major air pollution source.
EPA FRS registry ID 110007198353 (U.S. EPA ECHO) Agency record
Severity 3.5
Elkhorn Operating, Aneth
Major air pollution source.
EPA FRS registry ID 110007208725 (U.S. EPA ECHO) Agency record
Severity 3.5
Resolute Natural Resources Company - Aneth Central Gas Processing Plant, Montezuma Creek
Major air pollution source.
EPA FRS registry ID 110043816993 (U.S. EPA ECHO) Agency record
Severity 3.5
Elk Petroleum - Mcelmo Unit, Montezuma Creek
Major air pollution source.
EPA FRS registry ID 110071435206 (U.S. EPA ECHO) Agency record
Severity 3.5
White Mesa Asbestos Dumps, White Mesa
Brownfield property.
EPA FRS registry ID 110060828804 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
53 Beaver Lane, White Mesa
Brownfield property.
EPA FRS registry ID 110071965233 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
#6 Willow Street, White Mesa
Brownfield property.
EPA FRS registry ID 110071965234 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
#15 Mesa View, Whitemesa
Brownfield property.
EPA FRS registry ID 110071965235 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
#22 Cedar Hill, Wite Mesa
Brownfield property.
EPA FRS registry ID 110071965236 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
#8 Mesa View, White Mesa
Brownfield property.
EPA FRS registry ID 110071965237 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
U 20 Es, White Mesa
Brownfield property.
EPA FRS registry ID 110071970751 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Mesa View Drive & Willow Street, White Mesa
Brownfield property.
EPA FRS registry ID 110071984453 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
6 Cowboy Street, White Mesa
Brownfield property.
EPA FRS registry ID 110071984455 (U.S. EPA Brownfields (ACRES)) 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 San Juan County

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