| Action Date |
Action |
Description |
DEC Staff |
| 3/6/2007 |
Spill Transferred from Prevention Preparedness and Response Program |
Site transferred by PERP staff Amanda Stark. Spill No. 05309919503; Spill Date = 7/14/05; Substance = Diesel; Amount = Unknown; PERP File No. 107.02.014. |
Mitzi Read |
| 4/20/2007 |
Site Added to Database |
Site added to the database. |
Mitzi Read |
| 8/13/2007 |
Exposure Tracking Model Ranking |
Initial ranking completed. |
Mitzi Read |
| 11/24/2008 |
CERCLA ROD Periodic Review |
ADEC issued a letter of concurrence on the 2008 Five-Year ROD review for Eielson AFB. In the letter ADEC concurred with the current remedies but recommends further work on the following: the vapor intrusion pathway needs to be evaluated for all potential receptors at WP45/SS57 site along with further evaluation of the selected remedy to ensure the Remedial Action Objectives are going to be met. The buried drums remaining at SS35 may still contain product that may pose a potential risk to ecological and human health risk in the future. The area of buried drums identified outside of SS37 may pose a threat of an imminent release of hazardous substances and warrants further investigation or response action. As stated in the 2008 Five-Year ROD Review, the overall long-term protectiveness determination for the Sitewide OU/Garrison Slough remedy will be further investigated. A Land Use Control Management Plan should be developed and implemented. |
Deborah Williams |
| 6/12/2013 |
Update or Other Action |
Site was included in Phase 1 SER for Multiple Sites report. Air Force recommendation is for a CERCLA RI/FS. |
Eric Breitenberger |
| 9/1/2015 |
Update or Other Action |
Site is included in the Non-OU RI/FS Management Plan under the Eielson FFA. All review comments have been addressed and a Final version and subsequent approval are expected shortly. |
Eric Breitenberger |
| 9/22/2015 |
CERCLA RI Plan Approved |
Joint approval issued by EPA and DEC for the final "Remedial Investigation / Feasibility Study Management Plan For Non-Operable Unit Source Areas, Eielson Performance-Based Remediation, Eielson Air Force Base, Alaska" dated September 2015 (Non-OU RI/FS MP). The Non-OU RI/FS MP describes planned remedial investigations at 17 contaminated sites at Eielson Air Force Base, including MY518. |
Melinda Brunner |
| 9/22/2015 |
CERCLA RI Plan Approved |
DEC and EPA jointly approved the "2015 Annual Field Sampling Plan, Eielson Performance-Based Remediation, Eielson Air Force Base, Alaska" dated September 2015 (FSP). The FSP describes remedial investigations planned for 2015 at 21 contaminated sites at Eielson Air Force Base, including MY518. The FSP is meant to be used in conjunction with the appropriate remedial investigation/feasibility study (RI/FS) management plan(i.e. Non-OU) and the Programmatic Quality Assurance Project Plan. |
Melinda Brunner |
| 10/28/2016 |
Document, Report, or Work plan Review - other |
DEC Reviewed the Non-OU RI/RA report. This report summarizes the characterization efforts for multiple sites. |
Monte Garroutte |
| 4/25/2017 |
Update or Other Action |
DEC reviewed and provided comments on the Draft Programmatic Quality Assurance Project Plan, Addendum No. 2, Eielson Air Force Base, Alaska (March, 2017). |
John O'Brien |
| 10/28/2017 |
Risk Assessment Report Approved |
DEC reviewed and provided comments on the Draft 2015 Remedial Investigation/Risk Assessment Report for Non-Operable Unit Source Areas, Eielson AFB, Alaska [August 2016]. |
John O'Brien |
| 3/9/2018 |
Document, Report, or Work plan Review - other |
DEC issued comments on the Draft Site Characterization Report I Source Areas ST011, SD021, SD022, SD024, DP025, ST027, SS030, ST058, SO065, SO069, SO070, SO071, SO073, SO075, SS078, SS084, SO504, TU506, MY512, and MY518 dated February 2018. |
Bri Clark |
| 6/25/2018 |
Document, Report, or Work plan Review - other |
DEC issued comments on the Draft Site Characterization Report I Source Areas ST011, SD021, SD022, SD023, SD024, DP025, ST027, SS030, ST058, SO065, SO069, SO070, SO071, SO073, SO075, SS078, SS084, SO504, TU506, MY512, and MY518, Eielson Air Force Base, Alaska, dated February 2018. |
Bri Clark |
| 8/21/2019 |
Site Characterization Report Approved |
DEC Approval for the Final Site Characterization Report 1, Source areas ST011, SD021, SD022, SD023, SD024, DP025, ST027, SS030, ST058, SO065, SO069, SO070, SO071, SO073, SO075, SS078, SS084, SO504, TU506, MY512, and MY518, Eielson Performance Based Remediation, Eielson AFB, Alaska, May 2019 |
Sara Marshall |
| 5/12/2020 |
Update or Other Action |
A draft Decision Document (1 Part B) was submitted for Eielson Source Areas: MY512, MY518, SO504, SS078, and ST011. All of the sites have underlying PFAS contamination and are within the PFOS/PFOA groundwater plume. PFOS/PFOA contamination associated with groundwater in these areas will be addressed under the CERCLA regulatory program in accordance with the Eielson federal facilities agreement. |
Dennis Shepard |
| 2/9/2022 |
Update or Other Action |
DEC approved and signed the Decision Document for Eielson Performance Based Remediation Source Areas SO075, SS078, SO504, MY512, and MY518, Eielson Air Force Base, Alaska (May 2021). The Decision Document describes the remedial actions at Eielson Source Areas SO075, SS078, SO504, MY512, and MY518, all of which are associated with potential contamination resulting from petroleum, storage, distribution, and/or use. The U.S. Air Force (USAF) is managing
remediation of petroleum, oil, and lubricants (POL) or petroleum-related contamination at these
source areas in accordance with the State-Eielson Agreement (USAF 2014d), the two-party agreement. Any Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) constituents remaining will be addressed by transferring source areas back to the Eielson Air Force Base, Federal Facility Agreement Under CERCLA Section 120 (USAF 2013a), the three-party agreement. |
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 |
| 5/9/2024 |
Update or Other Action |
DEC approved Land Use Control (LUC) boundary updates that were discussed at the 23 October 2023 meeting. The updated site boundaries were based on site evaluations performed since initial interim LUCs were place on the sites. Site SO075 boundaries are being expanded northeast to capture soil contamination. SS078 is being expanded to include a proposed monitoring well. MY512 was recommended for collapse and a shift north to include two monitoring well locations. MY518 and SO504 were recommended for site closure, but will retain current LUC boundaries until a final DEC decision is made. |
Axl LeVan |
