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Site Report: Yakutat AFB Air Warning System Station

Site Name: Yakutat AFB Air Warning System Station
Address: N. of ~0.4 Mile Ridge Rd., ~0.7 Miles N. of Yakutat, Yakutat, AK 99689
File Number: 1530.38.011
Hazard ID: 3721
Status: Cleanup Complete
Staff: No Longer Assigned, 9074655229 dec.icunit@alaska.gov
Latitude: 59.554081
Longitude: -139.727969
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.

Problems/Comments

Based on verbal reports of abandoned drums present, this site was investigated as part of the 2001 RI. A 1943 layout map indicates that the generator for the powerhouse was not installed although there was one in the plan. Two fuel storage tanks were to supply diesel. Two large storage trailers nearly cover the concrete foundation identified by a local resident as the former powerhouse. Two drums and several metal cans were observed. Three surface soil samples were taken around the foundation. DRO, pentachlorophenol, arsenic, and cadmium were detected above Method II cleanup levels, no PCBs were detected. Lat/long converted from northing/easting. The land is privately owned but the owner is not included in the report. Concern N1

Action Information

Action Date Action Description DEC Staff
4/30/2003 Site Added to Database DRO, pentachlorophenol, arsenic, and cadmium. Debra Caillouet
4/30/2003 Update or Other Action The site investigation was very limited, only three surface samples. Further investigation is needed. Debra Caillouet
4/5/2004 Update or Other Action A draft feasibility study was reviewed. There is insufficient site characterization data available to select appropriate remedies or to effectively evaluate them against CERCLA criteria. Based on the information provided, the Feasibility Study is premature. Work should occur to identify the data gaps and resolve them before any additional actions are taken. Debra Caillouet
8/19/2004 Meeting or Teleconference Held Staff attended the RAB meeting in Yakutat Debra Caillouet
8/26/2004 Update or Other Action File number issued 1530.38.011.12 Aggie Blandford
11/23/2004 Update or Other Action Response to comments on the draft feasibility study were received and reviewed. While the responses will add clarification to the document, DEC believes there is insufficient site characterization data. The Feasibility Study is premature. Work should occur to identify the data gaps and resolve them before any additional actions are taken. Debra Caillouet
1/13/2005 Meeting or Teleconference Held Staff attended the RAB meeting in Yakutat Debra Caillouet
7/7/2005 Update or Other Action Staff sent a comment letter to the Corps regarding the Draft Rapid Optical Screening Tool (ROST) Laser-Induced Fluorescence (LIF) Focused Remedial Investigation, Former Yakutat Air Force Base, Debra Caillouet
11/19/2007 Exposure Tracking Model Ranking Debra Caillouet
12/27/2007 Exposure Tracking Model Ranking Initial ranking with ETM completed. Jonathan Schick
1/16/2008 Update or Other Action ADEC staff attended a Restoration Advisory Board meeting in Yakutat to discuss the status of various contaminated sites associated with the Yakutat AFB. Discussions at the RAB meeting included the results from the 2007 investigations including the Military Munitions Respons Program work and research; Avgas pipeline removal work scheduled for the upcoming summer; discussions concerning the Feasibility Study that is scheduled to be conducted in upcoming years; and the work to be conducted at the Ocean Cape Radio Relay Station in the NALEMP program. Jonathan Schick
1/17/2008 Site Visit ADEC Staff pariticipated in a site visit to various sites around the Yakutat area. Snow inhibited access to many of the sitess but the purpose of the trip was to get an understanding of the distribution of sites and to attend a Restoration Advisory Board Meeting. Jonathan Schick
8/13/2008 Meeting or Teleconference Held ADEC staff attended a Restoration Advisory Board meeting in the community of Yakutat. Various topics were discussed concerning the status of the on-going environmental restoration work that is going on in the area. Topics included, the new TAPP advisor for the RAB; the release of the Final Military Munitions Response Program report, a discussion of the progress at the Runwway Safety Area(20) and the status of the Feasibility Study. additional discussion was centered around the removal/abandonment of the Avgas pipeline from Concern L, as well as the upcoming work at the Ocean Cape RRS NALEMP Site. Jonathan Schick
8/14/2008 Site Visit ADEC Staff pariticipated in a site visit to various sites in and around the Yakutat AFB area. We visited the Ocean Cape RRS NALEMP project site as well as performeds ome Quality assurance on the pipeline removal work in Concern L. The purpose of the QA work was to confirm that there were no undetected releases from the pipeline that was largely abandoned in place. The other purpose of the site visit was to attend a Restoration Advisory Board Meeting. Jonathan Schick
9/25/2008 Document, Report, or Work plan Review - other ADEC staff recieved a copy of the Final Pipeline Closure Report for the Former Yakutat Air Force Base Air Corps Operations Reserve Tank Farm Mainline Removal, Drain, or Pig from the 2008 Field Season. The Report is dated September 2008. Staff will review it to confirm that all comments have been addressed. Jonathan Schick
9/30/2009 Update or Other Action ADEC staff signed a CON/HTRW project closeout report fort he Formerly Used Defense Sites associated with the Yakutat Air Base. The State of Alaska, through the Department of Environmental Conservation concurs with this USACE project closure. The decision may be reviewed or modified in the future if information becomes available that indicates the presence oif military CON/HTRW that may cause unacceptable risk to human health or the environment. The remeduiation of these sites will continue as necessary, this report only states that no containerized wastes are known to be present at the subject sites. Jonathan Schick
3/17/2010 Update or Other Action ADEC Staff issued a letter to the USACE approving the finalization of the Feasibility Study Report as all of the State's comments have been responded to and incorporated in the document. THe Feasibilty Study provides comparisons of applicable remedial alternatives for the numerous sites associated with the Former Yakutat Air Force Base. Jonathan Schick
5/28/2010 Update or Other Action ADEC staff recieved a copy of the Draft Work Plan for the 2010 Supplemental Remedial Investigation. The Work Plan details the USACE's efforts to confirm that the Chromium detections are not hexavalent Chromium and to further investigate several sites that require additional sampling conducted. Jonathan Schick
6/22/2010 Update or Other Action ADEC staff completed the review of the Draft Work Plan for the 2010 Supplemental Remedial Investigation and submitted comments to the US Army Corps of Engineers. The State's main concern was regarding the best way to characterize the impacts from the skeet range located near the airport. Multi-Incremental Sampling was proposed in the work plan but it may not be appropriate due to the size of the site. Jonathan Schick
8/6/2010 Site Characterization Workplan Approved ADEC staff sent a letter to the USACE project manager approving the implementation of the final work plan for the Supplemental Remedial Investigation for several sites in Yakutat. The field work is scheduled to begin immediately and will be continuing for approximately one month. Jonathan Schick
10/22/2010 CERCLA FS Contaminated Sites Staff submitted a letter to the US Army Corps of Engineers approving the Final Version of the Feasibility Study Report. The report details the amount of money and effort that cleanup wil require for each of the impacted sites at the Yakutat former Naval Air Facility. There were a few sites that were excluded from the study pending additional investigation. Jonathan Schick
4/22/2011 Document, Report, or Work plan Review - other Contaminated Sites Staff recieved a copy of the Draft 2010 Supplemental Remedial InvestigationReport for the Fromer Yakutat Air Force Base. The report augmented the initial RI report from 2010 to collect additional data at several of the sites. The report is dated April 2011. Jonathan Schick
6/3/2011 Document, Report, or Work plan Review - other Contaminated Sites Staff submitted a letter to the US Army Corps of Engineers with comments on the Draft 2010 Supplemental Remedial Investigation Report for the Former Yakutat Air Force Base. The State's main concerns were regarding methylene chloride present in some of the groundwater samples and the change to the cleanup level for lead as the site location should not be considered industrial despite it being located on airport property. Jonathan Schick
4/25/2012 Cleanup Complete Determination Issued Based on the results of the 2010 Supplemental Remedial Investigation and the finalization of the Supplemental Remedial INvestigation Report and approval of the associated data, this site is granted the determination of cleanup complete. No Contaminants of concern were detected above the applicable cleanup levels at the site. THe locations where past contamination was identified have been resampled and the site has been determined to be approved for unrestricted use. Jonathan Schick
9/29/2014 Site Visit The ADEC contaminated Sites staff participated in a Restoration Advisory Board (RAB) meeting, a tribal meeting, and site inspections in Yakutat with the Army Corps of Engineers to share information on the status of Formerly Used Defense Site investigation and cleanup activities around Yakutat. Jessica Morris
9/29/2014 Site Visit The ADEC contaminated Sites staff participated in a Restoration Advisory Board (RAB) meeting, a tribal meeting, and site inspections in Yakutat with the Army Corps of Engineers to share information on the status of Formerly Used Defense Site investigation and cleanup activities around Yakutat. Jessica Morris

Contaminant Information

Name Level Description Media Comments
Pentachlorophenol < Method 2 Most Stringent Soil
DRO < Method 2 Most Stringent Soil
Cadmium - Total < Method 2 Most Stringent Soil

Control Type

Type Details
No ICs Required

Requirements

Description Details
Advance approval required to transport soil or groundwater off-site.

There are no documents for this site report.

No associated sites were found.

Missing Location Data

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