| Action Date |
Action |
Description |
DEC Staff |
| 8/31/1995 |
Preliminary Assessment Approved |
PA action added by Shannon and Wilson, Inc., on 2/19/97. Based on FUDS Site Summary, PA started 8/31/95. RD for CON/HTRW scheduled to start October 1997. |
S&W-Miner |
| 11/19/1996 |
Site Added to Database |
Site added by Shannon and Wilson. |
S&W-Miner |
| 4/24/1998 |
Update or Other Action |
The Corps plans to do a Site Investigation in 1998. |
John Halverson |
| 5/4/1999 |
Update or Other Action |
ADEC received a draft site investigation report from the Corps of Engineers, dated April 1999. It documents solid waste (debris), elevated levels of lead and cadmium in soil beneath the antenna towers, abandoned drums (~100) and associated contaminated soil. Removal of the drums and contaminated soil was recommended. |
John Halverson |
| 1/2/2003 |
Update or Other Action |
EPA listed the site on the Federal Agency Hazardous Waste Compliance Docket based on a reported release of a hazardous substance. |
John Halverson |
| 3/20/2003 |
Update or Other Action |
DEC recevied a copy of a letter from EPA to the Corps of Engineers and USFW noting that it has reviewed a Sept. 3, 1999 Site inspection report and determined, on January 14, 2003, no further remedial action planned (NFRAP) is appropriate under CERCLA. |
John Halverson |
| 1/12/2006 |
Update or Other Action |
File number issued 2580.38.006. |
Aggie Blandford |
| 8/7/2015 |
Site Visit |
Conduct Site Visit with USFWS to evaluate potential contaminants and debris. Two drum pile are present along with other remnants of the former radar station. |
Guy Warren |
| 12/1/2016 |
Meeting or Teleconference Held |
CS managers participate in the annual FUDS site management action plan meeting. The purpose of the is to collaborate with FUDS management on site progress and prioritization for all of the formerly used defense sites. FUDS prioritization is based on risk, congressional interest, state input and proximity to other sites on the prioritization list. FUDS has increased environmental restoration funding in Alaska for the 2017 and 2018 field seasons to meet National goals for site progress. |
Darren Mulkey |
| 4/13/2017 |
Update or Other Action |
Draft Site Investigation work plan was received. |
Jessica Morris |
| 6/14/2017 |
Document, Report, or Work plan Review - other |
The 2017 Final Cape Yakak/Davis AFB FUDS Site Investigation Work Plan is approved. |
Darren Mulkey |
| 4/16/2018 |
Site Characterization Report Approved |
ADEC approves the 'Final Site Investigation Report, Cape Yakak Radio Station FUDS, January 2018' in letter dated April 16, 2018. The 2017 SI determined that COPCs were DRO, RRO, lead, 1-methylnapthalene, and 4-chloroaniline in soil. Several sources of containerized waste are present at the site, including small cans of paint, drums containing product, and a large spool of lead coated wire. POL soil contamination was identified at the project sites, notably associated with the ASTs, 8 Drum Group, Galvanized Drum 1, and Drum Groups B & C. It is recommended that a small CON/HTRW removal be performed to remove identified sources. |
Sammi Castle |
| 7/1/2020 |
Document, Report, or Work plan Review - other |
ADEC approved the Final Work Plan/Quality Assurance Project Plan, Remedial Investigation and Limited CON/HTRW Removal, Cape Yakak AWS Station, Adak Island, Alaska, dated June 2020, in a letter on this date. Objectives for the RI include the collection of data to define nature and extent of contamination at known and potential contaminant sources, confirmation of contaminants of potential concern, and the collection of sufficient data to identify Method 3 cleanup levels for petroleum. Objectives for the limited CON/HTRW effort include removal of containerized sources of future contamination (including batteries, paint cans, POL drums/containers, transformers, and lead coated cable), and removal of POL and lead-contaminated soil. |
Sammi Castle |
| 8/25/2021 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 73593 name: auto-generated pm edit Cape Yakak Radio Station |
Darren Mulkey |
| 4/28/2022 |
Document, Report, or Work plan Review - other |
ADEC reviewed the Final Remedial Investigation and Limited Containerized Hazardous, Toxic, or Radioactive Waste Removal Report, Cape Yakak Aircraft Warning Station Formerly Used Defense Sites (F10AK004002 &F10AK004003), Adak Island, Alaska, dated March 2022. The report describes the remedial investigation and waste removal activities conducted at the Radar Detector Area and Inland Area sites.Most soil exceedances were associated with POLs (DRO) and fuel-related constituents (VOCs and PAHs), and—to a lesser extent—metals (lead and mercury). and prior SI detections of pesticide compounds. Groundwater exceedances were limited to fuel related compounds. No exceedances from human-made sources were reported for surface water and sediment. The ADEC is not in concurrence with the selected remedy of No Further Action for sites FS001 and FS020. Lead and cadmium exceedances in soil are directly attributable to historical activities performed at the Cape Yakak site, and it is the responsibility of USACE to address this contamination to obtain site closure. ADEC accepts the subject report as final with nonconcurrence on two comments. |
Ginna Quesada |
| 5/1/2024 |
Meeting or Teleconference Held |
DEC project managers and risk assessor met with Cape Yakak stakeholders for a RI/Limited Removal Action - Comment Resolution Meeting. |
Mollie Dwyer |
| 6/12/2024 |
Document, Report, or Work plan Review - other |
Final workplan submitted. |
Janice Wiegers |
| 6/14/2024 |
Document, Report, or Work plan Review - other |
DEC sent a letter documenting the review and comment/responses for the Phase II Remedial Investigation and Limited CON/HTRW Removal Work Plan draft submitted in March. |
Janice Wiegers |
| 7/12/2024 |
Offsite Soil or Groundwater Disposal Approved |
Approved disposal of 540 cubic yards of contaminated soil excavated during 2024 field work at Cape Yakak. The soil will be disposed of at the Columbia Ridge and Roosevelt landfills. |
Janice Wiegers |
