| 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 SO072 as documented in the report includes a preliminary assessment, as well as sampling results. Sampling at the site identified tetrachloroethene, benzo(a)pyrene, 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 SO072. |
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 the USAF will pursue a remedial investigation/feasibility study at SO072. |
Melinda Brunner |
| 9/22/2015 |
CERCLA RI Plan Approved |
DEC and EPA jointly approved the final "Remedial Investigation / Feasibility Study Management Plan For Non-Operable Unit Source Areas, 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 SO072. The Non-OU RI/FS MP is designed to work in concert with the Programmatic Quality Assurance Project Plan; Health and Safety Plan; and site specific Field Sampling Plans. Field work is scheduled to begin at SO072 in 2015. |
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 SO072. |
Melinda Brunner |
| 2/4/2016 |
Site Added to Database |
A new site has been added to the database |
Mitzi Read |
| 2/5/2016 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 79871 name: (SO072) Bldg 6163 Igloo |
Melinda Brunner |
| 10/28/2016 |
Document, Report, or Work plan Review - other |
DEC Reviewed the Non-OU RI/RA report. This report included the characterization of 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 |
Document, Report, or Work plan Review - other |
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 |
| 8/20/2018 |
Document, Report, or Work plan Review - other |
DEC reviewed and provided comments on the "Draft Remedial Investigation/Risk Assessment Report for Non-Operable Unit Source Areas SO072, TU076, SS085, SS521, and SO524, Eielson Air Force Base, Alaska," dated May 2018. |
Bri Clark |
| 9/3/2019 |
Update or Other Action |
DEC provided a response to the Air Force responses to DEC comments for the Remedial Investigation/Risk Assessment Report for Non-Operable Unit Source Areas SO072, TU076, SS085, SS521, and SO524, Eielson Air Force Base, Alaska, Final, June 2019. DEC recommended a comment resolution meeting with the Air Force and EPA Remedial Project Managers and contractors to resolve remaining issues, agree to any required revisions and finalize the document. |
Dennis Shepard |
| 1/21/2021 |
Document, Report, or Work plan Review - other |
DEC received a response to comments and a draft final version of the Non-OU Remedial Investigation - Risk Assessment report. The report presents the human health risk assessment, including methods, parameters, and results to support the Eielson Air Force Base performance-based remediation (PBR) project. |
Dennis Shepard |
| 3/15/2021 |
CERCLA RI Report Approved |
The EPA and DEC approved the Final Revision 2 Remedial Investigation/Risk Assessment Report for Non-OU Source Areas SO072, TU076, SS085, SS521 and SO524, EAFB (March 2021). The report summarizes the remedial investigation (RI)/risk assessment (RA) activities at
non-operable unit (OU) source areas SO072, TU076, SS085, SS521 and SO524 on Eielson Air Force Base (AFB) conducted from 2015 to 2017. |
Dennis Shepard |
| 8/29/2022 |
Document, Report, or Work plan Review - other |
DEC provided backcheck review comments for the Final Supplemental Remedial Investigation Work Plan, Eielson Air Force Base, Alaska (August 2022). The Supplemental Remedial Investigation (RI) Work Plan describes the 2022 RI activities to be conducted at Eielson Air Force Base, Alaska. The scope of the Supplemental RI is to address current data gaps at the CERCLA source areas on Eielson AFB for all operating units. |
Dennis Shepard |
| 9/19/2022 |
CERCLA RI Plan Approved |
EPA and DEC provided a joint approval for the Final Supplemental Remedial Investigation Work Plan Eielson Air Force Base, Alaska (September 2022). The scope of this Supplemental RI is to address current data gaps at the CERCLA source areas on Eielson AFB. The data gaps are generally related to the incomplete characterization of site contaminants under the 2015-2021 Performance Based Remediation (PBR) and emerging contaminants identified since the 2015-2021 PBR. |
Axl LeVan |
