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Kusilvak Census Area, Alaska: environmental and disease records

Cancer mortality in Kusilvak Census Area is 235.6 deaths per 100,000 people per year against a U.S. rate of 143.2, a statistically significant excess. Federal databases place 93 regulated facilities, sites and hazards inside the county, led by Industrial wastewater discharge (18), NPDES wastewater discharge permit (18), Air permit holder (minor source) (13). EPA AirToxScreen estimates a lifetime cancer risk from outdoor air toxics of 8 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: 62.0977, -163.3155.

How this county ranks in Alaska

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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 Kusilvak Census Area compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
All cancer	Deaths	235.6	143.2	1.65xSignificant	148.7 to 348.6	2020-2024
All cancer	New cases	353.4	453.4	0.78x	271.9 to 449.6	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 Kusilvak Census Area
Measure	County	U.S. median	Difference	Unit
Premature death	24,556.3	9,842.6	+149%	years of life lost before age 75 per 100,000
Life expectancy	65	75.3	-14%	years
Child mortality	274.3	59.8	+359%	deaths under age 18 per 100,000
Infant mortality	20.2	6.2	+226%	deaths under age 1 per 1,000 live births
Injury deaths	242.9	96.9	+151%	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: 8 in a million. EPA treats 100 in a million as the upper end of acceptable risk and 1 in a million as the goal.

Formaldehyde3.25 per million
Carbon Tetrachloride3.18 per million
Benzene0.82 per million
Acetaldehyde0.44 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

Industrial wastewater discharge18
NPDES wastewater discharge permit18
Air permit holder (minor source)13
Commercial airport13
Brownfield property11
Oil-fired power plant10
Landfill (mapped facility)4
Gas station (mapped facility)3
Wastewater plant (mapped facility)2
Public airport1

Highest-severity records

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

Emmonak Wwtf, Emmonak
NPDES wastewater discharge permit.
EPA FRS registry ID 110020073846 (U.S. EPA ECHO) Agency record
Severity 4.5
Pilot Station Wastewater Lagoon, Pilot Station
NPDES wastewater discharge permit.
EPA FRS registry ID 110030898358 (U.S. EPA ECHO) Agency record
Severity 4.5
Saint Marys Wwtf, Saint Marys
NPDES wastewater discharge permit.
EPA FRS registry ID 110037096068 (U.S. EPA ECHO) Agency record
Severity 4.5
Alakanuk Lagoon, Alakanuk
NPDES wastewater discharge permit.
EPA FRS registry ID 110056343210 (U.S. EPA ECHO) Agency record
Severity 4.5
Ryan Air Inc St. Mary'S Hub, Saint Marys
NPDES wastewater discharge permit.
EPA FRS registry ID 110071083661 (U.S. EPA ECHO) Agency record
Severity 4.5
Kwikpak Fisheries Llc Emmonak Plant, Emmonak
NPDES wastewater discharge permit.
EPA FRS registry ID 110071280757 (U.S. EPA ECHO) Agency record
Severity 4.5
Russian Mission Water System, Russian Mission
NPDES wastewater discharge permit.
EPA FRS registry ID 110022450774 (U.S. EPA ECHO) Agency record
Severity 4.3
Scammon Bay Wwtp, Scammon Bay
NPDES wastewater discharge permit.
EPA FRS registry ID 110028071217 (U.S. EPA ECHO) Agency record
Severity 4.3
Mountain Village Lagoon, Mountain Village
NPDES wastewater discharge permit.
EPA FRS registry ID 110056402904 (U.S. EPA ECHO) Agency record
Severity 4.3
Emmonak, Emmonak
Oil-fired power plant.
Record ID 6314 (U.S. Energy Information Administration)
Severity 4
Mountain Village, Mountain Village
Oil-fired power plant.
Record ID 6329 (U.S. Energy Information Administration)
Severity 4
Hooper Bay, Hooper Bay
Oil-fired power plant.
Record ID 6319 (U.S. Energy Information Administration)
Severity 4
St Marys Ic, St. Mary'S
Oil-fired power plant.
Record ID 6338 (U.S. Energy Information Administration)
Severity 4
Chevak, Chevak
Oil-fired power plant.
Record ID 6311 (U.S. Energy Information Administration)
Severity 4
Kotlik, Kotlik
Oil-fired power plant.
Record ID 57064 (U.S. Energy Information Administration)
Severity 4
Scammon Bay, Scammon Bay
Oil-fired power plant.
Record ID 57056 (U.S. Energy Information Administration)
Severity 4
Pilot Station, Pilot Station
Oil-fired power plant.
Record ID 57058 (U.S. Energy Information Administration)
Severity 4
Marshall, Marshall
Oil-fired power plant.
Record ID 60244 (U.S. Energy Information Administration)
Severity 4
Alakanuk, Alakanuk
Oil-fired power plant.
Record ID 57053 (U.S. Energy Information Administration)
Severity 4
Chevak Sewage Lagoon, Chevak
NPDES wastewater discharge permit.
EPA FRS registry ID 110022846893 (U.S. EPA ECHO) Agency record
Severity 4
Hooper Bay Community Bunker Properties, Hooper Bay
Brownfield property.
EPA FRS registry ID 110042229950 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Pilot Station School, Pilot Station
Brownfield property.
EPA FRS registry ID 110042236194 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Scammon Bay City Gym, Scammon Bay
Brownfield property.
EPA FRS registry ID 110070385493 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Old Village Store, Mountain Village
Brownfield property.
EPA FRS registry ID 110071967150 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Alakanuk Dump Site, South Bank, Alakanuk
Brownfield property.
EPA FRS registry ID 110071967386 (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 Kusilvak Census Area

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