| Action Date |
Action |
Description |
DEC Staff |
| 3/4/2013 |
CERCLA PA |
DEC and EPA provided joint comments to the U.S. Air Force on the "Draft Source Evaluation Report for Multiple Sites at Eielson Air Force Base, Alaska" dated January 2013. The report describes the investigation of 37 sites at Eielson that been reported or suspected of historical contaminant releases or activities that may have affected soil and water at the site. The investigation of SO066 as documented in the report includes a preliminary assessment, as well as sampling results. Sampling at the site identified thallium, chromium and arsenic in soil in concentrations above DEC's Method Two cleanup levels. |
Melinda Brunner |
| 6/12/2013 |
Update or Other Action |
DEC and EPA provided joint comments to the U.S. Air Force on the "Draft Final Source Evaluation Report for Multiple Sites at Eielson Air Force Base, Alaska" dated April 2013. The report describes investigations at SO066. |
Melinda Brunner |
| 6/21/2013 |
Update or Other Action |
The U.S. Air Force (USAF) provided a letter dated 21 June 2013 indicating that in response to DEC's and EPA's comments made on the "Draft Final Source Evaluation Report for Multiple Sites at Eielson Air Force Base, Alaska" dated April 2013, the USAF would add a table to the final version of the document that described the SER recommendation for additional action at each site and the USAF selected path forward for each site. The letter indicates that the USAF will consider closure of SO066. Background metals levels must be considered in the closure evaluation. |
Melinda Brunner |
| 6/27/2014 |
Site Characterization Workplan Approved |
DEC approved the "Multiple Compliance Restoration Program Sites, Remedial Investigation Work Plan, Eielson Air Force Base, Alaska" dated June 2014 (CRP Sites Work Plan). The CRP Sites Work Plan provides for the investigation of twenty sites at Eielson, including SO066. |
Melinda Brunner |
| 8/28/2015 |
Document, Report, or Work plan Review - other |
DEC provided comments to the USAF on 8/28/15 on the "DRAFT 2014 Site Characterization Report For Sites Where Investigation is Complete: PL001 (A to L), SS066, SO501, SO503, CG505, CG527, MY529, Eielson Air Force Base, Alaska" dated July 2015. This report describes sampling activities completed at seven sites at Eielson Air Force Base in 2014. Sampling of soil and groundwater was conducted to evaluate data gaps from previous investigations; delineate the nature and extent of soil and groundwater contamination; determine the potential for co-mingling of plumes from separate sites; and to determine the need, or lack thereof, for further investigation at each site. |
Melinda Brunner |
| 1/21/2016 |
Site Added to Database |
A new site has been added to the database |
Mitzi Read |
| 2/1/2016 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 79858 name: (SO066) Bldg 1452 (Facility 6132) Igloo |
Melinda Brunner |
| 11/28/2016 |
Document, Report, or Work plan Review - other |
DEC reviewed and provided comments on the Draft 2014 Characterization Report for Sites Where Investigation is Complete, Appendix F – Data Quality Assessment, Eielson Air Force Base, Alaska (June, 2015). |
John O'Brien |
| 12/16/2016 |
Document, Report, or Work plan Review - other |
DEC completed review of the 2014 "Site Characterization Report for Sites Where Investigation is Complete - Data Quality Assessment" and resolved all comments. |
Monte Garroutte |
| 3/7/2017 |
Site Characterization Report Approved |
DEC Approval of the 2014 Site Characterization for Multiple Sites (PL001A-L, SO066, SO501, SO503, CG505, CG527, and MY529), Report 1 (January 2017) |
John O'Brien |
| 7/19/2018 |
Site Characterization Report Approved |
DEC issued an approval letter for Site Characterization Report for Source Areas SO066, CG505, CS074, SO503, MY529, SS530, SS533, TU531, and CS082 dated February 2018. |
Bri Clark |
| 9/12/2018 |
Update or Other Action |
DEC reviewed and issued comments on the "Draft Decision Document for Installation Restoration Program Source Areas SO066, TU077, SS079, SO501, SS503, and CG505," dated June 2018. |
Bri Clark |
| 4/12/2019 |
Update or Other Action |
DEC reviewed and issued comments on the "Draft Final Decision Document for Installation Restoration Program Source Areas SO066, TU077, SS079, SO501, SO503, and CG505," dated February 2019. |
Bri Clark |
| 6/11/2019 |
Update or Other Action |
DEC received and accepted the "Decision Document for Installation Restoration Program Source Areas SO066, TU077, SS079, SO501, SO503, and CG503." The decision document presents remedies to address the contamination at each of the 6 sites. |
Sara Marshall |
| 6/24/2020 |
Update or Other Action |
DEC signed the Decision Document for Installation Restoration Program Source Areas SO066, TU077, SS079, SO501, SO503, and CG505, Eielson AFB. The document identifies selected remedies for petroleum contaminated sites at Eielson Air Force Base, Alaska. Site closure is recommended for Source Area SO066 based on the results of SC activities (USAF 2017a, 2018a). No contaminants as a result of the source area release were detected at concentrations greater than ADEC cleanup levels. |
Dennis Shepard |
| 9/20/2022 |
Document, Report, or Work plan Review - other |
The U.S. Environmental Protection Agency (EPA) and Alaska Department of Environmental Conservation (DEC) approved the Final 2021 Institutional Controls/Land Use Controls Annual Report, Eielson Air Force Base, Alaska (dated September 2022). The report provides inspection findings and reviews individual ICs established by the record of decision (ROD) documents for Installation Restoration Program source areas with enforceable ICs, as well as other contaminated sites currently with LUCs in effect. |
Dennis Shepard |
| 6/5/2024 |
Document, Report, or Work plan Review - other |
DEC approved an updated to Land Use Control (LUC) boundaries for multiple Eielson Sites. Site SO066 and CG505 are NFA sites, where interim LUCs will remain in place until the sites are closed. The LUC Boundary for sites SS079 and SO503 were recommended to be collapsed. It was noted during discussion that the installation of monitoring wells was not included in the Decision Document for site SO503. Air Force has agreed to further review this and propose any changes that may be required for the remedy component of SO503. The LUC Boundary for site SO501 was recommended to be collapsed and shifted to include a previous excavation at the site. Site TU077 requires further investigation and will be presented again at a later date. The proposed LUC boundary for site ZZ088 will be compared to Alaska Department of Natural Resources (DNR) records and presented again at a later date. |
Axl LeVan |
