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Site Report: Galena AFS/Airport - UST 1859 (CST014)

Site Name: Galena AFS/Airport - UST 1859 (CST014)
Address: Galena Air Force Station, Cantonment Triangle, North of Old Town Galena, Galena, AK 99741
File Number: 860.38.041
Hazard ID: 25853
Status: Active
Staff: Tim Sharp, 9074512131 tim.sharp@alaska.gov
Latitude: 64.741806
Longitude: -156.953044
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

UST 1859 was a 27,000-gallon fuel oil tank (likely heating oil) associated with a possible 3-inch diameter pipeline regulated at Valve Pit "B". Precise details related to the UST are not clear from the site history and limited records exist. Updated December 2014: Based on data collected during the SI/SC investigations, the sources of contamination at Site UST1859 are confirmed to be releases from the former UST. Contamination in subsurface soils and groundwater from the UST occurred either from leaks in the storage tank or during tank filling. The apparent source area for Site UST1859, defined by concentrations of COIs that exceed extent soil SLs, is located near the suspected location of the former UST. It is possible the source area extends under Buildings 1858 and 1859. The contamination extends to depths of approximately 35 feet bgs. Site UST1859 was renamed CST014 by AFCEC in 2014. An addendum SC report was approved for Site UST1859 (CST014) on November 24, 2014. The purpose of this addendum was to address the remaining requirements for an SC Report under 18 AAC 75.335(c) (ADEC, 2012), specifically, to propose cleanup levels and remediation techniques for the site. Subsurface aeration of the soil and groundwater was the primary proposed cleanup technique, though several remedial techniques were retained for further evaluation in the cleanup plan.

Action Information

Action Date Action Description DEC Staff
3/14/2012 Site Added to Database A new site has been added to the database Mitzi Read
4/24/2012 Document, Report, or Work plan Review - other DEC received a Draft Site Characterization results report for Site. Dennis Shepard
9/25/2012 Document, Report, or Work plan Review - other DEC provided review comments for the Draft Site Characterization results report for Site. Dennis Shepard
11/28/2012 Meeting or Teleconference Held A meeting was held in Redding CA with members of the AF, AF Contractors and DEC staff and Contractors to discuss data gaps in site characterization for Galena Sites including UST 1859. A vapor intrusion investigation was proposed for the adjacent building 1858. Additional soil and groundwater characterization is agreed to be conducted during a future clean up effort. Dennis Shepard
5/8/2013 Document, Report, or Work plan Review - other A response to comments and a Draft Final Site Characterization results report were received. Dennis Shepard
6/10/2013 Document, Report, or Work plan Review - other DEC provided comments for the Draft Final Site Characterization results report. Dennis Shepard
6/27/2013 Meeting or Teleconference Held A teleconference was held to discuss remaining issues for the Site Characterization results report. All issues were resolved. Dennis Shepard
7/18/2013 Document, Report, or Work plan Review - other DEC received the Final version of the Site Characterization results report for Site. Dennis Shepard
10/7/2013 Site Characterization Report Approved DEC approved the Final Site Characterization results report for Site UST1859. Dennis Shepard
11/24/2014 Site Characterization Report Approved DEC approved the Addendum Site Characterization (SC) Results Report, Underground Storage Tank 1859 – Dining Facility (Site UST1859 renamed CST014), Former Galena Forward Operating Location (FOL), Alaska. 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
6/29/2016 Cleanup Plan Approved DEC approved the Subsurface Aeration (Vertical Well) Cleanup Plan for site CST014. Dennis Shepard
6/30/2016 Cleanup Plan Approved DEC approved the Subsurface Aeration (Vertical Well) Cleanup Plan for Sites ST020, SS005, CST014, CST011 Area 2, and TU001. 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
10/11/2017 Update or Other Action DEC approved the Subsurface Aeration (Vertical Well) Construction Completion Report for Sites ST020, SS005, CST014, CST011 Area 2, and TU001. Dennis Shepard
8/8/2018 Site Visit DEC conducted a site visit at the Former Forward Operating Location in Galena, AK on August 8-9, 2018. A photo log is available in DEC's electronic file. Jamie McKellar
10/29/2018 Site Visit On October 23, 2018, DEC participated in the Technical Project Team (TPT) meeting with representatives from USAF and ADOT&PF. A site visit with inspections of each site was conducted the following day (10/24/2018) in Galena, as well as a regional advisory board (RAB) meeting with members of the community and other interested parties. Jamie McKellar
4/5/2019 Site Visit On April 2, 2019, DEC staff participated in a Technical Project Team meeting with representatives from USAF, Parsons, CH2M, and ADOT. The TPT meeting was held at the Fairbanks DEC office. On April 3-4, 2019, DEC staff traveled to Galena to participate in meetings with the City Mayor & RAB chair to discuss community concerns about site cleanup; a Proposed Plan meeting for Site DP023, and a community regional advisory board (RAB) meeting to discuss fieldwork completed during the 2018 field season and upcoming 2019 fieldwork. Site visits were also conducted. Jamie McKellar
10/23/2019 Meeting or Teleconference Held On October 22, 2019, DEC participated in the Technical Project Team (TPT) meeting with representatives from USAF and ADOT&PF. A site visit was conducted the following day (10/23/2019) in Galena, as well as a regional advisory board (RAB) meeting with members of the community and other interested parties. Jamie McKellar
10/30/2019 Document, Report, or Work plan Review - other REPORT APPROVAL: Final Performance Monitoring Report (CH2M Hill Sites) for Sites ST020, SS005, CST014, CST011 Area 2, TU001, CG001, CG002, CB001 and Southern ST005, Former Galena Forward Operating Location, Alaska (CH2M, October 2019) Jamie McKellar
5/21/2020 Document, Report, or Work plan Review - other REPORT APPROVAL: 2019 Performance Monitoring Report (CH2M Hill Sites) for Sites ST020, SS005, CST014, CST011 Area 2, TU001, CG001, CG002, CB001, Southern ST005, and ST005 Area C (CH2M, May 2020) Jamie McKellar
5/3/2021 Document, Report, or Work plan Review - other WORK PLAN APPROVED: Final 2021 Remedial Process Optimization Work Plan (Sites CG001, CST011 Area 2, CST014, SS005, ST005 Area C, Southern ST005, and TU001), Former Galena Forward Operating Location, Alaska (CH2M, April 2021) Jamie McKellar
5/3/2021 Document, Report, or Work plan Review - other REPORT APPROVED: Final Data Quality Assessment, November 2019 – October 2020, Soil Vapor Monitoring for Sites CG001, CST014, SS005, ST005 Area C, Southern ST005, and TU001 (CH2M, April 2021) Jamie McKellar
5/3/2021 Document, Report, or Work plan Review - other REPORT APPROVED: Final Data Quality Assessment, September – October 2020 Groundwater Monitoring at Sites CG001, CST011, CST014, SS005, Southern ST005, ST005 Area C, and TU001. Jamie McKellar
6/29/2022 Meeting or Teleconference Held CS Staff attended a presentation by USAF contractors CH2M and Parsons regarding sample results obtained with submersible pumps and Passive Diffusion Bags (PDBs). Jamie McKellar
1/31/2023 Document, Report, or Work plan Review - other WORK PLAN ADDENDUM APPROVAL: 2022 Remedial Process Optimization Work Plan Addendum (Sites CG001, CST011 Area 2, CST014, SS005, ST005 Area C, Southern ST005, and TU001). Jamie McKellar
8/31/2023 Document, Report, or Work plan Review - other WORK PLAN APPROVAL: Final 2023 Data Collection Sampling Plan (Sites SS005, CST014, CST011 Area 2, TU001, CG001, Southern ST005, and ST005 Area C), Former Galena Forward Operating Location, Alaska (CH2M, August 29, 2023) Jamie McKellar
11/15/2023 Site Visit DEC, DOT, USAF, and contractors met at the Fairbanks DEC office on May 2, 2023 for a Technical Project Team meeting. The following day a site visit and Regional Advisory Board (RAB) meeting were held in Galena. Meeting minutes for the TPT and RAB meetings were approved on November 15, 2023. Jamie McKellar
11/16/2023 Long Term Monitoring Workplan or Report Review REPORT APPROVED: Data Quality Assessment 2022 Groundwater Monitoring for Sites CG001, CST011, CST014, SS005, ST005 Area C, Southern ST005, and TU001, Former Galena Forward Operating Location, Alaska (CH2M, October 2023) Jamie McKellar
11/16/2023 Long Term Monitoring Workplan or Report Review REPORT APPROVAL: Data Quality Assessment October 2021 – May 2022, Soil Vapor Monitoring for Sites CST014, ST005 Area C, Southern ST005, and TU001, Former Galena Forward Operating Location, Alaska (CH2M, October 2023) Jamie McKellar
11/20/2023 Long Term Monitoring Workplan or Report Review REPORT APPROVED: Remedial Process Optimization Report (Sites CG001, CST011 Area 2, CST014, SS005, ST005 Area C, Southern ST005, and TU001), Former Galena Forward Operating Location, Alaska (CH2M, November 2023) Jamie McKellar
11/20/2023 Update or Other Action REPORT APPROVED: Data Quality Assessment 2021 Groundwater Monitoring for Sites ST005 Area C, Southern ST005, SS005, CG001, CST011, CST014 and TU001 (CH2M, May 2022) Jamie McKellar
4/23/2024 Meeting or Teleconference Held CS staff participated in the biannual Technical Project Team (TPT) meeting with representatives from USAF BRAC, Parsons, Jacobs/CH2M Hill, and EA Engineering. The meeting was held at the EA Engineering office in Anchorage, AK. Jamie McKellar
6/24/2024 Document, Report, or Work plan Review - other DEC reviewed and supplied comments to the USAF regarding the Performance Monitoring Report (PMR), which presents results of the Fiscal Year (FY) 2023 performance monitoring of remediation systems at the Former Galena Forward Operating Location (FOL). During FY 2023, the Air Force Civil Engineer Center (AFCEC) conducted air sparging, soil vapor extraction, and vapor intrusion mitigation systems operations, along with groundwater monitoring. The report details recommendations for future remedial actions, including continued monitoring and operations of soil cleanup systems. Tim Sharp
6/27/2024 Document, Report, or Work plan Review - other DEC approved multiple data quality assessment reports for soil, soil vapor, groundwater, and sediment. Reports were submitted by Parsons and CH2M/Jacobs. Approval letter is dated 6/27/2024. Jamie McKellar
7/11/2024 Document, Report, or Work plan Review - other DEC Approved the Final 2023 Performance Monitoring Report for Sites SS005, CST014, CST011 Area 2, TU001, CG001, Southern ST005, and ST005 Area C, Former Galena Forward Operating Location on this date. Tim Sharp

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State of Alaska Department of Environmental Conservation

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Juneau, AK 99811-1800
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