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Site Report: Atka AF Aux Airf'ld - Motor Pool

Site Name: Atka AF Aux Airf'ld - Motor Pool
Address: Atka Island at Nazan Bay, Atka, AK 99547
File Number: 2513.38.004
Hazard ID: 3798
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.


The former military motor pool building was located approximately 1200 feet northwest from the runway. All that remains are the concrete slab and what appears to be a drywell that is filled with rainwater/groundwater. Pentachlorophenol was reported in a sediment sample collected from the drywell. Other reported problems in the area include: Reports of buried drums containing petroleum products under or near the village tank farm and documented fuel contamination in soil. Petroleum contaminated soil at the former generator 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
5/2/1995 Update or Other Action DEC received a US Coast Guard situation report describing its response to a report of sheen entering marine waters. Valves on fuel tanks owned by the village were found to be leaking and were repaired. They noted approximately 250 WWII era drums around the village and stated that many had leaked their contents and others were still full. John Halverson
12/1/1995 Update or Other Action DEC received a Draft Landfill Closure Report from the Corps of Engineers. It describes cleanup work done in 1986 as including removal of Quonset huts and other buildings, 150 cubic yards of asbestos containing material, drums and fuel tanks, fuel pipelines that were visible, marsten matting (runway matting) that was visible and the old pier. John Halverson
6/10/1998 Update or Other Action Staff reviewed and commented on a draft Site Inspection workplan prepared by the Corps. The Corps planned to conduct limited sampling to rank the site using the DOD relative risk ranking model. John Halverson
8/8/1998 Update or Other Action The Corps provided DEC Preliminary Trip Report Notes from the Atka Site Inspection. Solid waste from the '86 cleanup disposal sites B and C is partially exposed due to wind erosion. Petroleum contaminated soil was observed at a former power plant building foundation and a former motor pool building foundation. Residents had pointed out areas of concern including old military drums that were reportedly buried beneath the village tank farm area and a disposal site near the village dock. John Halverson
7/31/2001 Update or Other Action Site Discovery by EPA recognizing need for Preliminary Assessment. Bruce Wanstall
1/23/2002 Preliminary Assessment Approved Superfund Technical Assessment and Response Team (START) site inspection report. Bruce Wanstall
3/29/2002 Site Added to Database Multiple sites and contaminants. Bruce Wanstall
3/29/2002 Site Ranked Using the AHRM Preliminary ranking. Bruce Wanstall
6/24/2002 Meeting or Teleconference Held Attended meeting with the COE, DOT, and FAA. The DOT is intending to expand the runway and apron area in 2003. They are planning on acquiring the project property and current airport site fee simple from the Axtam Native Corporation. The DOT is soliciting guidance from the ADEC on the environmental concerns at the site (COE RP). They believe all the known impacted areas (three disposal sites, former generator building and motorpool) can be avoided, except perhaps the motorpool site. Jeff Brownlee
7/3/2002 Update or Other Action DEC accompanied DOT, USFW, 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 AK DOT. John Halverson
11/19/2002 Site Characterization Report Approved DEC received the final site characterization report prepared by Oasis Environmental for AK DOT. Soil and groundwater samples collected during this assessment did not exceed applicable cleanup levels with the exception of selenium in one soil sample. The assessment did not characterize the entire area. DOT does not plan further work at this site since it is not on State land, potential contamination appears minimal and the site will not affect the airport improvement project. John Halverson
5/22/2003 Site Ranked Using the AHRM Site reranked using data from the 11/02 assessment report. John Halverson
6/29/2004 Site Characterization Report Approved Previous site samples had detected low levels of mercury in the immediate vicinity of the foundation. ADOT&PF is planning to acquire the property within fifty feet south, east, and north of the building foundation. Airspace improvements require excavation into the soils comprising the hillside approximately 100 feet east of the motor pool foundation. Two additional samples and one duplicate were analyzed and mercury was not detected above method reporting limits. John Halverson
5/9/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. John Halverson
4/21/2016 Update or Other Action 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

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Description Details

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