| Action Date |
Action |
Description |
DEC Staff |
| 5/24/2013 |
CERCLA RI Report Approved |
Site originally investigated as a POL site; however, TCE was detected above Cleanup Levels (CULs)during site investigations reported in 2012. Current PBR contractor will conduct remedial investigation data gap sampling in 2013 and complete Supplemental Remedial Investigation Report including Baseline Risk Assessment. |
Dennis Shepard |
| 1/14/2014 |
CERCLA RI Plan Approved |
The Alaska Department of Environmental Conservation (DEC) received a Draft 2013 Supplemental Remedial Investigation (RI) and Site Characterization (SC) Sampling Plan on May 24, 2013. The sampling plan presents step out sample locations and analytical protocols for supplemental remedial investigation at six Sites (B400, OWS1833, DSWD, SS006/SS019, and FT001). DEC provided review comments for the draft sampling plan on July 3, 2013. A response to comments (RTC) and a Draft Final version of the plan was submitted on July 25, 2013. DEC provided comments for the Draft Final on July 19, 2013. A comment resolution teleconference meeting was held on July 19, 2013 to resolve the final issues for the sampling plan. All issues were resolved in the meeting and DEC approval was given to finalize the plan. Final version of the sampling plan was received on December 16, 2013 and approval of the work plan was given on January 14, 2014. |
Dennis Shepard |
| 1/15/2014 |
Site Added to Database |
A new site has been added to the database |
Mitzi Read |
| 1/16/2014 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 79581 name: B400 Bldg 400 Frmr CAA AF Weather Station |
Dennis Shepard |
| 4/15/2014 |
Meeting or Teleconference Held |
A Technical Project Team meeting was held to meet the Air Force newly selected Performance Based Remediation Contractor for Galena. The 6.5 year remediation contract was awarded to Parsons Governmental Services (Parsons). The contract includes completing the risk assessments, remediation feasibility studies, proposed plans and record of decision for remedial investigations at 10 Sites (FT001, SS006, SS013, SS015, SS019, SS018/AOC023, SS022/B400, DP023/DSWD, OW024/OWS1833, and SS025). |
Dennis Shepard |
| 1/8/2015 |
CERCLA RI Report Approved |
DEC approved the Supplemental Remedial Investigation report for Site B400/SS022. The purpose of the Supplemental RI at Site B400 was to evaluate soil and groundwater in an area down gradient of the former wooden cesspool and a wooden-box-covered septic tank west of former Building 400 and to evaluate soil and groundwater at the location of the newly identified former septic tank and leach field located south of former Building 400. Two monitoring wells – B400-MW001 and MW002, were installed to evaluate the groundwater at the septic tank and leach field south of Building 400. Two additional borings were completed and sampling confirmed Trichloroethene(TCE)above clean up levels in soil and groundwater. It is stated in the report that the extent of TCE is not bound vertically or to the west and south of B400_GP012. Additional characterization/ sampling efforts are planned and this sampling will be specified in a Soil Vapor Extraction Pilot Test Work Plan. |
Dennis Shepard |
| 1/20/2015 |
Risk Assessment Report Approved |
DEC approved the Human Health Risk Assessment, Building 400 Former Civil Aeronautics Administration (CAA) – Air Force Weather Station (Site B400). The cumulative carcinogenic risks and non-carcinogenic hazards were estimated for four receptor groups. The risk assessment reported that the cumulative carcinogenic risk to Current/future occupational worker, Near-term future resident, and Long-term future resident exposed to surface soil, indoor air, and potable groundwater is greater than the cumulative risk goal of 1 × 10-5. Remediation plans include a proposed pilot test SVE system being designed for the site. |
Dennis Shepard |
| 6/3/2015 |
CERCLA FS |
DEC approved the Feasibility Study Report for Building 400, Former CAA Air Force Weather Station (Site SS022), Performance-Based Remediation at Galena. Five Specific response actions (no action, Land Use Controls (LUCs), monitored natural attenuation (MNA), bioventing, soil vapor extraction (SVE), and excavation with on-site treatment) were retained for assembly into remedial alternatives and subsequent detailed and comparative analysis. The preferred alternative includes SVE to treat vadose zone and Variably saturated zone TCE-impacted soil; excavation to remove petroleum-impacted soil; and MNA, combined with LUCs, to remediate groundwater. |
Dennis Shepard |
| 6/3/2015 |
CERCLA FS |
DEC approved the CERCLA feasibility Study for the Site. The preferred alternative includes SVE to treat vadose zone and VSZ TCE-impacted soil; excavation to remove petroleum-impacted soil; and MNA, combined with LUCs, to remediate groundwater. |
Dennis Shepard |
| 10/8/2015 |
CERCLA Proposed Plan |
DEC approved the CERCLA proposed plan- Air Force Proposes Alternatives for
B400 Building 400 Former CAA Air Force Weather Station (Site SS022) with Soil and Groundwater Impacts– Public Comment Invited, Former Galena Forward Operating Location (FOL), Alaska.
|
Dennis Shepard |
| 10/20/2015 |
CERCLA Proposed Plan |
A Restoration Advisory Board (RAB) Meeting was held in Galena Alaska. The DEC approved Proposed Plan for the site B400/SS022 was presented during the RAB meeting. Public comment was recorded during the meeting and written comments were solicited in a booklet which contained all three proposed plans being presented (Plans for Sites SS015, SS0222, OW024). |
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 |
| 7/19/2017 |
CERCLA ROD Approved |
Approval of the Record of Decision (ROD) for B400 Building 400, Former CAA Air Force Weather Station (Site SS022) |
Jamie McKellar |
| 9/13/2017 |
CERCLA Remedial Design/Remedial Action Plan Approved |
Approval of Remedial Design and Remedial Action (RD/RA) Work Plan, pending signing of the Record of Decision (ROD) for this site. |
Jamie McKellar |
| 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 |
| 1/2/2019 |
Document, Report, or Work plan Review - other |
REPORT APPROVAL: 2017 Performance Monitoring Report for Sites CPL006, CSS002, OW024, SS014/SS017, SS016, SS022, SS025, ST009, and ST010. Parsons, December 2018. The report presents and evaluates performance monitoring data for sites managed by Parsons with an approved Cleanup Plan or Record of Decision (ROD), and an active remedy installed and operating for fiscal year 2017. |
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 2018 Performance Monitoring Report for Sites CPL006, CSS002, OW024, SS006/SS019, SS014/SS017, SS015, SS016, SS018, SS022, SS025, ST009, ST010, and FT001, Former Galena Forward Operating Location, Alaska (Parsons, October 2019) |
Jamie McKellar |
| 4/21/2021 |
Document, Report, or Work plan Review - other |
REPORT APPROVAL: 2020 Performance Monitoring Report for Sites CPL006, CSS002, SS006/SS019, SS017, SS015, SS016, SS018, SS022, ST009, ST010, and FT001, Former Galena Forward Operating Location, Alaska (Parsons, April 2021) |
Jamie McKellar |
| 8/23/2023 |
Document, Report, or Work plan Review - other |
REPORT APPROVED: Final Remedial Process Optimization Evaluation Report, Former Galena Forward Operating Location, Alaska (Parsons, June 2023) |
Jamie McKellar |
| 9/14/2023 |
Document, Report, or Work plan Review - other |
WORK PLAN APPROVED: Final Addendum 3 to Work Plan for Remedial Process Optimization Technical Memorandum, Former Galena Forward Operating Location, Alaska (Parsons, September 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 |
