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Site Report: Galena AFS/Airport - AST 1569 (CSS001) Electric Power Station

Site Name: Galena AFS/Airport - AST 1569 (CSS001) Electric Power Station
Address: Southeast of Galena Airport Runway, Galena, AK 99741
File Number: 860.38.046
Hazard ID: 25908
Status: Cleanup Complete
Staff: No Longer Assigned, 9074655229 dec.icunit@alaska.gov
Latitude: 64.739612
Longitude: -156.951659
Horizontal Datum:WGS84

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

AST 1569 is a former 275-gallon aboveground storage tank that served a standby generator at Building 1568. Investigations in 2009 did not identify signs of contamination, however, sampling in 2010 identified DRO and GRO in soil at concentrations exceeding cleanup levels. An interim removal action conducted in 2011 removed ~200 cubic yards of DRO- and GRO-contaminated soil. Excavation confirmation samples identified additional DRO and GRO contamination remains above method 2 cleanup levels at the excavation limits.

Action Information

Action Date Action Description DEC Staff
4/4/2011 Document, Report, or Work plan Review - other DEC received the Workplan for Interim removal action at sites SS005, SS014, SS016, SS017 and AST1569. Fred Vreeman
7/26/2011 Cleanup Plan Approved DEC approval of the Workplan for Interim removal action at sites SS005, SS014, SS016, SS017 and AST1569 was provided. Fred Vreeman
2/1/2012 Document, Report, or Work plan Review - other Site Characterization results report received from Air Force. Dennis Shepard
3/29/2012 Document, Report, or Work plan Review - other Site Characterization report review comments were provided to the Air Force. Dennis Shepard
5/16/2012 Document, Report, or Work plan Review - other DEC received a Draft Interim Removal Action Excavation Report for Sites SS005, AST1569, SS014, and SS017. Dennis Shepard
9/10/2012 Site Added to Database A new site has been added to the database Mitzi Read
11/8/2012 Meeting or Teleconference Held A meeting was conducted with DEC contractor Shannon and Wilson to identify all remaining data gaps in the site characterization for all Galena Sites including Site AST1569. Dennis Shepard
11/15/2012 Document, Report, or Work plan Review - other DEC received a Draft Final Redline of the Site Characterization report and a responce to comments. Dennis Shepard
11/15/2012 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 79329 name: AST 1569 Electric Power Station Dennis Shepard
11/28/2012 Meeting or Teleconference Held A meeting between ADEC Staff, the U.S. Air Force (USAF) and USAF contractors was held to identify remaining Data Gaps in nature and extent investigations at Galena Sites. It was agreed that an additional monitoring well would be installed during the 2013 field season to address DEC concerns for Groundwater impacts at Site AST 1569. The well installation soil sampling and groundwater monitoring results are to be presented in a Site Characterization supplemental report. Dennis Shepard
12/19/2012 Document, Report, or Work plan Review - other ADEC provided comments for the Draft Final Site Characterization results report for Site AST1569. Dennis Shepard
1/16/2013 Meeting or Teleconference Held A teleconference call was held to resolve remaining issues for the Site Characterization results report. All remaining issues were resolved. Dennis Shepard
1/29/2013 Document, Report, or Work plan Review - other A Final version of the Site Characterization results report was recieved. Dennis Shepard
10/25/2013 Site Characterization Report Approved The Site Characterization results report for 1569 Electric Power Station AST (Site AST1569) was approved. DEC/Air Force - comment/response and documentation of the agreements for a supplemental site characterization are documented in the approval letter (ADEC_approval_SCRpt_AST1569). Dennis Shepard
6/24/2014 Site Characterization Workplan Approved DEC approved the 2013 Supplemental Site Characterization (SC) Sampling Plan, Former Galena Forward Operating Location (FOL), Galena, Alaska. This additional sampling was agreed to during a November 2012 Galena Data Gaps meeting. Dennis Shepard
9/2/2014 Site Characterization Report Approved DEC approved the Supplemental Site Characterization Results Report, 1569 Electric Power Station (AST 1569 or CSS001). Dennis Shepard
9/29/2014 Site Characterization Report Approved DEC approved the Addendum Site Characterization (SC) Results Report, 1569 Electric Power Station AST (Site AST1569 or CSS001). The purpose of the addendum was to address requirements for an SC Report under 18 AAC 75.335 (c) (DEC, 2012), specifically, to propose cleanup levels and remedial techniques for the site. Monte Garroutte
8/8/2016 Cleanup Plan Approved DEC approved the Excavation Cleanup Plan for Site CSS001 (AST1569). Dennis Shepard
10/26/2016 Meeting or Teleconference Held A restoration Advisory board meeting was held in Galena Alaska to discuss the general and specific status of site investigations and cleanup at Galena. Dennis Shepard
12/19/2016 Meeting or Teleconference Held A meeting was held to discuss status of several sites and cleanup plans. Site AST 1569 excavation was discussed and the status of the excavation confirmation sampling was reviewed. Several side wall samples remain to be collected and analyzed. Dennis Shepard
4/24/2017 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 79329 AST 1569 Electric Power Station . Dennis Shepard
5/31/2017 Final Cleanup Report Reviewed DEC approved the ADEC Method Three Risk Evaluation and Cleanup Complete Report for Site CSS001 (AST 1569). The report documents the cleanup activities undertaken and evaluates the cumulative risk from contaminants remaining in site soils. Risk from residual contaminants is below 1 X 10-5 carcinogenic risk and below a Hazard Index of one for non-carcinogenic risk. Dennis Shepard
6/27/2017 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 79329 AST 1569 Electric Power Station . Dennis Shepard
6/30/2017 Cleanup Complete Determination Issued Based on the information provided to date, it has been determined that the contaminant concentrations remaining on site do not pose an unacceptable risk to human health or the environment. No further remedial action will be required unless new information becomes available that indicates residual contaminants may pose an unacceptable risk. Dennis Shepard

Contaminant Information

Name Level Description Media Comments
DRO Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil

Control Type

Type Details
No ICs Required

Requirements

Description Details
Advance approval required to transport soil or groundwater off-site.
Movement or use of contaminated material (including on site) in a manner that results in a violation of the water quality standards is prohibited (18 AAC 70)
Hazard ID Site Name File Number
27830 Galena AFS BRAC Landfarm 860.38.076

Missing Location Data

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