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Latah County, Idaho: environmental and disease records

Cancer mortality in Latah County is 125.8 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 235 regulated facilities, sites and hazards inside the county, led by Industrial wastewater discharge (70), Rail grade crossing (52), NPDES wastewater discharge permit (41). 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: 46.8497, -116.6846.

How this county ranks in Idaho

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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 Latah County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Brain & nervous system	New cases	9.3	6.2	1.5x	5.4 to 14.9	2019-2023
Melanoma of the skin	New cases	33.7	23.8	1.42xSignificant	25.8 to 43.2	2019-2023
Pancreas	New cases	16.7	13.9	1.2x	11.7 to 23.3	2019-2023
Pancreas	Deaths	12.5	11.3	1.11x	8.2 to 18.2	2020-2024
Leukemia	New cases	14.5	14.5	1x	9.6 to 21	2019-2023
Kidney & renal pelvis	New cases	17.8	17.9	0.99x	12.2 to 25.1	2019-2023
All cancer	New cases	434.8	453.4	0.96x	406.2 to 465	2019-2023
All cancer	Deaths	125.8	143.2	0.88x	111.1 to 142.1	2020-2024
Non-Hodgkin lymphoma	New cases	15.5	18.5	0.84x	10.5 to 22.1	2019-2023
Bladder	New cases	15.5	18.7	0.83x	10.6 to 22.1	2019-2023
Thyroid	New cases	8.7	13	0.67x	5 to 14.2	2019-2023
Lung & bronchus	New cases	30.6	51.8	0.59x	23.6 to 39	2019-2023
Lung & bronchus	Deaths	16.7	30.2	0.55x	11.8 to 23.2	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 Latah County
Measure	County	U.S. median	Difference	Unit
Premature death	5,065.2	9,842.6	-49%	years of life lost before age 75 per 100,000
Life expectancy	80.8	75.3	+7%	years
Child mortality	32.6	59.8	-45%	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	59.8	96.9	-38%	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.

Formaldehyde14.66 per million
Carbon Tetrachloride2.77 per million
Acetaldehyde2.02 per million
Naphthalene1.44 per million

EPA Air Quality Index 2025

Monitored on 338 days: 282 good, 1 unhealthy for sensitive groups or worse. Median AQI 31, peak 107.

Regulated facilities, sites and hazards by type

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

Industrial wastewater discharge70
Rail grade crossing52
NPDES wastewater discharge permit41
Air permit holder (minor source)19
Auto repair or body shop (mapped facility)12
Gas station (mapped facility)12
Brownfield property10
Public airport5
Small hazardous waste generator4
Major air pollution source2
Large hazardous waste generator2
TRI reporting facility2
Toxic chemical release facility (TRI)2
EPA air quality monitor1
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.

Bennett Lumber Products Inc., Princeton
Toxic chemical release facility (TRI). Chemicals: Lead. Reports carcinogens. 190 lbs released over 5 years.
TRI facility ID 83857BNNTT3759H (U.S. EPA Toxics Release Inventory)
Severity 6.2
Princeton-Hampton Wwtp, Princeton
NPDES wastewater discharge permit. Penalties $5,000.
EPA FRS registry ID 110042369317 (U.S. EPA ECHO) Agency record
Severity 5.5
Harvest Hills Addition Phase 1, Moscow
NPDES wastewater discharge permit. Penalties $1,100.
EPA FRS registry ID 110070078608 (U.S. EPA ECHO) Agency record
Severity 5.5
Bennett Lumber Products, Princeton
TRI reporting facility.
EPA FRS registry ID 110013285364 (U.S. EPA ECHO) Agency record
Severity 4.6
Potlatch Wwtp, Potlatch
NPDES wastewater discharge permit.
EPA FRS registry ID 110063999641 (U.S. EPA ECHO) Agency record
Severity 4.5
Schweitzer Engineering Laboratories Inc., Moscow
Toxic chemical release facility (TRI). Chemicals: Lead, Copper. Reports carcinogens.
TRI facility ID 8384WSCHWT2615S (U.S. EPA Toxics Release Inventory)
Severity 4.5
University Of Idaho, Moscow
Major air pollution source.
EPA FRS registry ID 110000845630 (U.S. EPA ECHO) Agency record
Severity 4
Troy Wwtp, Troy
NPDES wastewater discharge permit.
EPA FRS registry ID 110010026989 (U.S. EPA ECHO) Agency record
Severity 4
Moscow Stp, Moscow
NPDES wastewater discharge permit.
EPA FRS registry ID 110039983505 (U.S. EPA ECHO) Agency record
Severity 4
Schweitzer Engineering Laboratories, Moscow
TRI reporting facility.
EPA FRS registry ID 110071292197 (U.S. EPA ECHO) Agency record
Severity 4
Kendrick Wwtp, Kendrick
NPDES wastewater discharge permit.
EPA FRS registry ID 110010027050 (U.S. EPA ECHO) Agency record
Severity 3.8
Woodbury Subdivision Addition 1, Moscow
NPDES wastewater discharge permit. Penalties $10,775.
EPA FRS registry ID 110071895252 (U.S. EPA ECHO) Agency record
Severity 3.8
University Of Idaho, Moscow
Large hazardous waste generator.
EPA FRS registry ID 110000845630 (U.S. EPA ECHO) Agency record
Severity 3.5
University Of Idaho, Moscow
NPDES wastewater discharge permit.
EPA FRS registry ID 110000845630 (U.S. EPA ECHO) Agency record
Severity 3.5
Bovill Wastewater Treatment Facility, Deary
NPDES wastewater discharge permit.
EPA FRS registry ID 110010026952 (U.S. EPA ECHO) Agency record
Severity 3.5
Juliaetta Wwtp, Juliaetta
NPDES wastewater discharge permit. Penalties $325.
EPA FRS registry ID 110010027005 (U.S. EPA ECHO) Agency record
Severity 3.5
Bennett Lumber Products, Princeton
Major air pollution source.
EPA FRS registry ID 110013285364 (U.S. EPA ECHO) Agency record
Severity 3.5
Viola Water And Sewer District Wwtp, Viola
NPDES wastewater discharge permit.
EPA FRS registry ID 110017708836 (U.S. EPA ECHO) Agency record
Severity 3.5
I-Minerals Bovill Kaolin Project, Mineral Lease #9276, Bovill
NPDES wastewater discharge permit.
EPA FRS registry ID 110067022714 (U.S. EPA ECHO) Agency record
Severity 3.5
Jackson Street Silos, Moscow
Brownfield property.
EPA FRS registry ID 110061007921 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Goodman Oil Moscow, Moscow
Brownfield property.
EPA FRS registry ID 110064564760 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Old Dumas Seed Site, Moscow
Brownfield property.
EPA FRS registry ID 110071968681 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Fountain, Moscow
Brownfield property.
EPA FRS registry ID 110071968687 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Sharpe Oil, Moscow
Brownfield property.
EPA FRS registry ID 110071969923 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
6th And Jackson, Moscow
Brownfield property.
EPA FRS registry ID 110071969927 (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 Latah County

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