| Action Date |
Action |
Description |
DEC Staff |
| 9/14/1992 |
Preliminary Assessment Approved |
(Old R:Base Action Code = SA1 - Phase I Site Assessment (General)). Site assessment for the decommissioning of tanks 52-A-1, 52-A-6 and 52-A-7, all above ground tanks, prepared by Harding Lawson Associates dated January 15, 1992. |
Don Gibler |
| 10/2/1992 |
Update or Other Action |
(Old R:Base Action Code = NOR - Notice of Release Letter (LUST)). Sent notice of release letter. |
Don Gibler |
| 10/5/1992 |
Interim Removal Action Approved |
Gibler: 180 cubic yards of contaminated soil is stockpiled at bulk fuel storage area excavation. Kalu approved on 10-5-92. |
Kalu Kalu |
| 11/7/1992 |
Site Added to Database |
|
Former Staff |
| 2/18/1993 |
Update or Other Action |
(Old R:Base Action Code = SA1R - Phase I SA Review (CS/LUST)). Gibler: The removal of 180 yards of contaminated soil appears to have removed the source material in the vadose zone. Still need to conduct release investigation to determine extent of soil contamination in the zone of watertable fluctuation, extent and degree of GW contamination and the contamination along the piping run to Building 607. |
Don Gibler |
| 2/23/1993 |
Update or Other Action |
(Old R:Base Action Code = RPL2 - Site Information Request Letter). Sent PRP-CS Database Notification Letter to RP requesting update and more environmental information concerning the contaminated site. RP responded with corrections on ADEC site report. |
Jeff Peterson |
| 4/1/1993 |
Site Ranked Using the AHRM |
Initial ranking. |
Former Staff |
| 9/29/1994 |
Update or Other Action |
(Old R:Base Action Code = TECH - Technical Assistance). Consulted with Larry Acomb, consultant for Northway LUST project, regarding CAP. He stated permafrost will not affect air sparging, soils are not as fine as initially thought; they will adjust blower to force more air through soils. Mounding not a problem, product is old with low solubility. VOCs are estimated to be low, probably won't do fertilizer and no studies are planned for microbes. Stated project will begin next May 1995. Subsequently sent letter further addressing ADEC concerns over this remediation plan. |
Jackie Dupee |
| 10/5/1994 |
Update or Other Action |
Reviewed and updated file. |
Jackie Dupee |
| 10/17/1994 |
Cleanup Plan Approved |
(Old R:Base Action Code = CAPR - Corrective Action Plan Review (LUST)). Reviewed Corrective Action Plan dated 04/20/94. Sent letter dated 10/17/94 requesting additional information on proposed remediation plan not contained in CAP. |
Jackie Dupee |
| 10/17/1994 |
Site Characterization Report Approved |
(Old R:Base Action Code = SA2R - Phase II SA Review (CS)). Reviewed Harding Lawson Associates Release Investigation dated 05/20/93. Extensive groundwater and soil contamination. Addressed contamination in letter dated 10/17/94 concerning RI and CAP. |
Jackie Dupee |
| 9/18/2002 |
Update or Other Action |
Sent letter requesting groundwater monitoring for all existing wells on site, with a schedule of monitoring to be submitted by March 31, 2003 and the monitoring to be complete by June 30, 2003. |
Elizabeth Stergiou |
| 9/19/2002 |
Update or Other Action |
Sent general letter requesting the following documents be submitted by 10/1/02: remedial action report for work completed in 2000. |
Elizabeth Stergiou |
| 9/4/2003 |
Update or Other Action |
ADEC approved the workplan for the Fall 2003 Sampling and Analysis Plan for various sites. |
Deborah Williams |
| 6/20/2008 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed. |
Kim DeRuyter |
| 10/24/2014 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 72676 name: Generator Building AST and former fuel pipeline |
Debra Caillouet |
| 11/4/2015 |
Update or Other Action |
Site management reassigned to Carnahan. |
John Carnahan |
| 3/13/2017 |
Document, Report, or Work plan Review - other |
Provide comments on work plan to address RI at multiple sites: Haz IDs 1698, 23343, and 4705. |
John Carnahan |
| 4/18/2017 |
Update or Other Action |
Letter sent to FAA requesting information on status of the investigations at these sites. |
John Carnahan |
| 5/3/2017 |
Site Characterization Workplan Approved |
Provide approval for FINAL WP FAA RI Northway Field FAA Sta, April 2017. |
John Carnahan |
| 11/13/2017 |
Document, Report, or Work plan Review - other |
Provided DEC review comments to 2016 Draft RI for three sites, Bldg 600, Bldg 601, and Basketball Court. |
John Carnahan |
| 3/1/2019 |
Update or Other Action |
Received Site Characterization report for three sites for work completed in 2017. Report was delayed due to DEC review and approval of HRC calculator. |
John Carnahan |
| 4/16/2019 |
Institutional Control Update |
DNR (Patty Burns - email this day) reviewed the DNR’s management agreement file, ADL 416177, and the deed for the land in question (attached) and determined that the land associated with this site was deeded to DOT under the authority of the Alaska Omnibus Act, June 25, 1959. As a result, DNR has no landowner interest in the site and there is no need for DNR to concur with proposed institutional controls. |
John Carnahan |
| 6/10/2021 |
Document, Report, or Work plan Review - other |
DEC sent comments on the draft 2021 RI and GWM WP. The Radio Range Tower, Power Plant Building, Water Treatment Building, and CAA Former Garage building will have work done at their locations.
Surface soils and surface water will be sampled for lead and PCBs at the Radio Range Tower. Existing groundwater wells will be sampled for GRO, DRO, VOCs, PAHs at the PPB and WTB AOCs. At the Garage AOC, soil borings and groundwater monitoring wells will be installed and sampled and run for all POL CoCs, with the addition of EPH and VPH for use in HRC calculations. |
Tim Sharp |
| 8/30/2021 |
Site Characterization Workplan Approved |
ADEC approved the Final RI and GWM WP for the FAA Northway sites. Soil borings and monitoring wells will be installed and sampled at the CAA Garage AOC, and the HRC will be used to assess if the contaminants exceed risk criteria. Surface soils and surface water will be sampled for lead and PCBs at the Former Radio Range Tower and other groundwater wells will be sampled at other AOCs for GRO, DRO, VOCs, and PAHs. |
Tim Sharp |
| 5/5/2022 |
Document, Report, or Work plan Review - other |
ADEC sent comments on the 2021 Draft RI and Groundwater Monitoring Report for FAA Northway Station. The report details efforts to characterize and monitor contamination at several areas of concern (AOCs). Soil borings and monitoring wells were installed and sampled at the Former Civil Aeronautics Administration (CAA) Garage AOC, also known as the Basketball Court site. The Hydrocarbon Risk Calculator (HRC) was used to assess remaining risk criteria.
Surface soils were sampled for lead and polychlorinated biphenyls (PCBs) at the Former Radio Range Tower AOC. Groundwater monitoring was conducted at five other AOCs. |
Tim Sharp |
| 10/24/2022 |
Update or Other Action |
On October 21, 2022 ADEC approved the Final Remedial Investigation and Groundwater Monitoring Report |
Alyssa Wood |
