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Lewis County, Idaho: environmental and disease records

Cancer mortality in Lewis County is 186.6 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 42 regulated facilities, sites and hazards inside the county, led by Rail grade crossing (9), NPDES wastewater discharge permit (8), Industrial wastewater discharge (7). 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: 46.2305, -116.3599.

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 Lewis County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Lung & bronchus	Deaths	43.8	30.2	1.45x	25.5 to 76.7	2020-2024
Lung & bronchus	New cases	72.7	51.8	1.4x	46.6 to 113.3	2019-2023
All cancer	Deaths	186.6	143.2	1.3x	138.7 to 248.8	2020-2024
All cancer	New cases	504.9	453.4	1.11x	421.1 to 603.1	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 Lewis County
Measure	County	U.S. median	Difference	Unit
Premature death	13,688.2	9,842.6	+39%	years of life lost before age 75 per 100,000
Life expectancy	73.4	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	126.2	96.9	+30%	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.

Formaldehyde14.37 per million
Carbon Tetrachloride2.75 per million
Acetaldehyde2.01 per million
Pahpom1.16 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

Rail grade crossing9
NPDES wastewater discharge permit8
Industrial wastewater discharge7
Air permit holder (minor source)5
Gas station (mapped facility)5
Public airport3
Brownfield property3
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.

Empire Lumber Co (Dba Kamiah Mills), Kamiah
Toxic chemical release facility (TRI). Chemicals: Lead. Reports carcinogens. 26 lbs released over 5 years.
TRI facility ID 83536KMHMLHWY14 (U.S. EPA Toxics Release Inventory)
Severity 5.6
Nezperce Wwtp, Nezperce
NPDES wastewater discharge permit.
EPA FRS registry ID 110011271612 (U.S. EPA ECHO) Agency record
Severity 4.5
Craigmont Wwtp, Craigmont
NPDES wastewater discharge permit.
EPA FRS registry ID 110039886291 (U.S. EPA ECHO) Agency record
Severity 4.5
Kamiah Regional Stp, Kamiah
NPDES wastewater discharge permit.
EPA FRS registry ID 110039886308 (U.S. EPA ECHO) Agency record
Severity 4.5
Empire Lumber Kamiah Mills, Kamiah
TRI reporting facility.
EPA FRS registry ID 110011625599 (U.S. EPA ECHO) Agency record
Severity 4.4
Winchester Wwtp, Winchester
NPDES wastewater discharge permit.
EPA FRS registry ID 110006776113 (U.S. EPA ECHO) Agency record
Severity 4.3
Craigmont Air Services, Craigmont
Brownfield property.
EPA FRS registry ID 110060768673 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
American Legion Trap Range, Craigmont
Brownfield property.
EPA FRS registry ID 110071967908 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Freedom Fitness, Kamiah
Brownfield property.
EPA FRS registry ID 110072252469 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Craigmont, City Of - Craigmont Wwtp, Craigmont
Industrial wastewater discharge. Significant/Category I Noncompliance.
NPDES permit ID0021288: (U.S. EPA NPDES)
Severity 2.5
Nezperce Muni, Nezperce
Public airport. O.
Record ID 0S5 (FAA / U.S. DOT)
Severity 2
Craigmont Muni, Craigmont
Public airport. O.
Record ID S89 (FAA / U.S. DOT)
Severity 2
Empire Lumber Kamiah Mills, Kamiah
NPDES wastewater discharge permit.
EPA FRS registry ID 110011625599 (U.S. EPA ECHO) Agency record
Severity 1.5
Ende Machine And Foundry Llc, Craigmont
NPDES wastewater discharge permit.
EPA FRS registry ID 110046593272 (U.S. EPA ECHO) Agency record
Severity 1.5
Kamiah Water Treatment Plant, Kamiah
NPDES wastewater discharge permit.
EPA FRS registry ID 110064630706 (U.S. EPA ECHO) Agency record
Severity 1.5
Nezperce Reuse Project Phase 2, Nezperce
NPDES wastewater discharge permit.
EPA FRS registry ID 110071953576 (U.S. EPA ECHO) Agency record
Severity 1.5
Dale Lunders, Reubens
Air permit holder (minor source).
EPA FRS registry ID 110005787452 (U.S. EPA ECHO) Agency record
Severity 1
Star Cedar Mills, Kamiah
Air permit holder (minor source).
EPA FRS registry ID 110007048391 (U.S. EPA ECHO) Agency record
Severity 1
Empire Lumber Kamiah Mills, Kamiah
Air permit holder (minor source).
EPA FRS registry ID 110011625599 (U.S. EPA ECHO) Agency record
Severity 1
Robert Branson, Nezperce
Air permit holder (minor source).
EPA FRS registry ID 110044321720 (U.S. EPA ECHO) Agency record
Severity 1
Ende Machine And Foundry Llc, Craigmont
Air permit holder (minor source).
EPA FRS registry ID 110046593272 (U.S. EPA ECHO) Agency record
Severity 1
Potlatch, Pierce
Rail grade crossing.
Record ID 863801B (Federal Railroad Administration)
Severity 1
N Laguna Dr, Kamiah
Rail grade crossing.
Record ID 863816R (Federal Railroad Administration)
Severity 1
Spruce Street, Kamiah
Rail grade crossing.
Record ID 863817X (Federal Railroad Administration)
Severity 1
Us-12/ Third Street, Kamiah
Rail grade crossing.
Record ID 863818E (Federal Railroad Administration)
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 Lewis 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 Lewis 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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