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Site Report: Atka AF Aux Airf'ld - Generator Bld

Site Name: Atka AF Aux Airf'ld - Generator Bld
Address: Atka Island at Nazan Bay, Cape Kudugnak Radio Relay, Atka, AK 99547
File Number: 2513.38.004
Hazard ID: 3799
Status: Active
Staff: Darren Mulkey,
Latitude: 52.219500
Longitude: -174.213000
Horizontal Datum:

We make every effort to ensure the data presented here is accurate based on the best available information currently on file with DEC. It is therefore subject to change as new information becomes available. We recommend contacting the assigned project staff prior to making decisions based on this information.


Petroleum contaminated soil reported at the former generator building, located ~ 1200 ft west of the runway. All that remains of the former building is the concrete slab. Petroleum stained soil (~25 square foot area) is present in a small drainage downgradient of the pad. Soil sampling shows the contamination extends ~50' downgradient to an andromous fish stream. A soil sample collected near the stream contained 9,280 mg/kg DRO. Petroleum sheen was observed on the surface water and a surface water sample contained 120 ug/l total aqueous hydrocarbons, which exceeds the surface water quality standards. Other concerns reported in the area include: Reports of buried drums containing petroleum products under or near the village tank farm and documented fuel contamination in soil. Pentachlorophenol present in sediment at a drywell located at the former motor pool building. Xylenes detected in a surface water sample from Korovin Lake (near FUDS disposal area A). CERCLIS ID AKN001002274. Cape Kudugnak is about 5 miles from the airfield and served as a radio relay station in support of the base (separate site...). The Atka Air Force Auxiliary Field was used by the Army Air Force and the Navy between 1942 and 1945 during WWII. Military facilities were abandoned in place after the war. In 1985, the Corps of Engineers contracted with Chris Berg Inc. to cleanup the formerly used defense site (FUDS). Buildings were demolished and debris was disposed of in three landfills.

Action Information

Action Date Action Description DEC Staff
1/23/2002 Preliminary Assessment Approved Superfund Technical Assessment and Response Team (START) site inspection report dated January 2002. Bruce Wanstall
7/3/2002 Update or Other Action DEC accompanied DOT, USFWS, Corps and SHPO staff on a site inspection trip to Atka to assist in coordination on an upcoming airport improvement project. DOT is considering acquiring more property around the airport and is concerned about contaminants and solid waste in the area related to the Formerly Used Defense Site. John Halverson
8/26/2002 Site Characterization Workplan Approved DEC approved a Site Characterization Workplan, prepared by Oasis Environmental for ADOT. John Halverson
11/19/2002 Site Characterization Report Approved DEC received the final site characterization report prepared by Oasis Environmental for ADOT. The report documents up to 30,500 mg/kg DRO in soil 3.5' below ground surface adjacent to the former generator pad. DRO contaminated soil extends down the drainage area ~50' where it discharges into a creek that supports anadromous fish. The contamination does not extend onto DOT property or the proposed airport improvement area, thus DOT does not plan further work at the site. It is a formerly used defense site that falls under the Corps of Engineers responsibility. John Halverson
1/24/2003 Site Added to Database Atka AF Auxiliary Airfield expanded into a total of four unique sites from the original. John Halverson
5/22/2003 Site Ranked Using the AHRM The site was reranked based on data from the Oasis assessment report and is considered a medium priority. John Halverson
5/9/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. John Halverson
4/21/2016 Site Visit ADEC, Ahtna, and APIA visited the project site in Atka. A public meeting was held at the Atka School from 4:30-5:45pm. Ahtna gave a PowerPoint presentation on Phase II RI site work proposed for summer 2016; the community was in support of the project. Ahtna provided ADEC with the Draft Phase II RI Work Plan. Holly Weiss-Racine
7/8/2016 Report or Workplan Review - Other ADEC approved the “Phase II HTRW Remedial Investigation Work Plan – Atka Air Force Auxiliary Field FUDS”. The objective of Phase II work is to investigate the 352 features determined to have evidence of potential environmental impacts identified during the Phase I(2015). Phase II will identify the presence/absence of contamination at each of the 352 sites. If time allows, contamination will be delineated. The majority of contamination delineation is proposed for the Phase III (anticipated in 2017). Holly Weiss-Racine
7/21/2016 Report or Workplan Review - Other ADEC approved the Final Phase I RI Report; Phase II of the RI is ongoing. Holly Weiss-Racine

Contaminant Information

Name Level Description Media Comments

Control Type

Type Details


Description Details

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