| Action Date |
Action |
Description |
DEC Staff |
| 6/30/2015 |
Update or Other Action |
EPA and DEC issued joint review comments on the "Draft Preliminary Assessment Report for Perfluorinated Compounds at Eielson Air Force Base, Alaska (PA)" dated May 2015. This document identified the former fire training areas near the antenna farm and entomology building (FT092) as possible source areas for perfluorinated compound releases. |
Melinda Brunner |
| 11/24/2015 |
CERCLA PA |
The U.S. Air Force (USAF) submitted a Phase 1 Source Evaluation Report (SER) for FT092 to DEC and EPA in accordance with Paragraph 8.6 of the Eielson Federal Facility Agreement. The SER describes interviews with Eielson AFB personnel in which FT092 was identified as a former fire training area. The USAF SER transmittal letter states that the USAF intends to proceed with the investigation/cleanup of the site under CERCLA, and that the site is programmed for a site inspection in FY16. |
Melinda Brunner |
| 12/10/2015 |
Update or Other Action |
DEC and EPA sent a joint letter to the USAF confirming receipt of the Phase 1 Source Evaluation Report submitted for FT092 on 11/24/2015. DEC and EPA concurred with the USAF's proposed plan to investigate/cleanup the site in accordance with CERCLA. |
Melinda Brunner |
| 2/5/2016 |
Site Added to Database |
A new site has been added to the database |
Mitzi Read |
| 10/17/2016 |
Site Characterization Workplan Approved |
DEC approved the 2016 Source Evaluation Work Plan for Source Areas FT092 and DD097. The WP describes proposed surface soil, subsurface soil and groundwater sampling at Source Areas FT092 and DD097 to assess the potential presence of contamination. |
Monte Garroutte |
| 1/12/2017 |
Document, Report, or Work plan Review - other |
DEC reviewed and provided comments on the 2016 Source Evaluation Report for Source Areas FT092 and DD097. |
John O'Brien |
| 5/25/2017 |
CERCLA RI Plan Approved |
DEC and EPA Approval of the Remedial Investigation Work Plan for Source Areas FT092 and DD097, Eielson Air Force Base, Alaska |
Monte Garroutte |
| 8/10/2018 |
Institutional Control Periodic Reporting |
DEC and EPA reviewed the "Installation-Wide Monitoring Program 2017 Groundwater Monitoring Program" for Eielson Air Force Base, Alaska dated March 2018 and issued comments. |
Bri Clark |
| 8/28/2018 |
Site Visit |
Site visit to the Eielson AFB to view current status of work in F-35 construction area, visit power plant, Garrison Slough pond, Garrison slough, and the fish gate. Also visited stockpile areas for PFAS contaminated soil. |
Dennis Shepard |
| 8/29/2018 |
Meeting or Teleconference Held |
A remedial project manager (RPM) meeting was held and the main topic was a SS062/SS067 Garrison Slough Risk Assessment (RA) Scoping Session. DEC, EPA and AFCEC risk assessors discussed contractor presented approach to the Risk assessment. Concerns over the proposed exposure areas were raised by the risk assessors present. |
Dennis Shepard |
| 9/24/2018 |
Meeting or Teleconference Held |
A remedial project manager (RPM) meeting was held and the main topic was the SS062/SS067 Garrison Slough Risk Assessment (RA) Scoping Session. DEC, EPA and AFCEC risk assessors discussed contractor presented data quality objectives for the Risk assessment. Concerns over the proposed sampling of soils sediments, surface waters and biota were raised by the risk assessors present. |
Dennis Shepard |
| 10/4/2018 |
Update or Other Action |
The Air Force PBR contractor provided meeting minutes from the August 29, 2018 Scoping meeting for Garrison Slough (SS062 AND SS067) Human Health and Ecological Risk Assessment. The minutes were submitted for review and comment by the regulatory agencies in order to document concerns for the risk assessment approach. |
Dennis Shepard |
| 10/9/2018 |
Document, Report, or Work plan Review - other |
The Air Force PBR contractor provided meeting minutes from the September 24, 2018 Scoping meeting for Garrison Slough (SS062 AND SS067) Human Health and Ecological Risk Assessment. The minutes were submitted for review and comment by the regulatory agencies in order to document concerns for the risk assessment data quality objectives. |
Dennis Shepard |
| 10/30/2018 |
Meeting or Teleconference Held |
A two day remedial project manager (RPM) meeting was held on October 29 and 30, 2018. Topics of discussion included Garrison Slough RI/FS and Risk Assessment Scoping. The status of PFAS treatability testing was also discussed and a new treatability study was proposed for soil washing of PFAS contaminated soil. |
Dennis Shepard |
| 5/22/2019 |
Document, Report, or Work plan Review - other |
DEC provided comments on a Draft Expanded PFOA and PFOS Site Inspection at Eielson Air Force Base and Moose Creek, Alaska, Uniform Federal Policy-Quality Assurance Project Plan Work Plan, Eielson Air Force Base, Alaska, May 2019. The plan includes installation of 24 monitoring well, groundwater sampling and stepout borings to identify monitoring well locations. |
Dennis Shepard |
| 7/12/2019 |
CERCLA RI Report Approved |
The U.S. Environmental Protection Agency (EPA) and Alaska Department of Environmental
Conservation (DEC)approved the Final Remedial Investigation / Risk Assessment
Report for Source Areas FT092 and DD097, Eielson Air Force Base, Alaska (June 2019). |
Dennis Shepard |
| 1/29/2021 |
Document, Report, or Work plan Review - other |
DEC received the draft Remedial Investigation/ Feasibility Study Interim Data Report and Work Plan Addendum for Source Areas SS062 and SS067, Eielson Air Force Base. The document is a combined Interim data report for samples collected in 2019, and a work plan addendum to the 2019 Remedial Investigation/ Feasibility Study Management Plan. |
Dennis Shepard |
| 12/30/2021 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 80350 name: 107.38.175 EAFB AFFF Area #9 Fmr Fire Training Areas Near Entomology Bldg 4335 (FT092) |
Dennis Shepard |
| 6/3/2022 |
Offsite Soil or Groundwater Disposal Approved |
DEC approved out of state transport of metals and pesticide contaminated investigation derived waste generated during remedial investigation of the Garrison Slough. |
Dennis Shepard |
| 8/29/2022 |
Document, Report, or Work plan Review - other |
DEC reviewed and approved revisions to the risk assessment scenarios and reaches (Eco exposure areas) that were proposed by the Air Force. The change revised the Eco exposure areas/ reaches from 5 separate areas to only 3 areas based on contaminants and land use. |
Dennis Shepard |
| 1/13/2025 |
Document, Report, or Work plan Review - other |
DEC provided comments on Volume I and II of the Garrison Slough Remedial Investigation/Risk Assessment reports. Volume I focused on SS062 and included evaluation of human health and ecological risk assessments. Volume II focused on Source Area SS067 which is a small portion of Garrison Slough. |
Axl LeVan |
