| Action Date |
Action |
Description |
DEC Staff |
| 10/22/1996 |
Meeting or Teleconference Held |
DEC/FAA meeting of 10/22/96: ADEC is waiting for decommissioning assessment. Expect in-place contamination associated with tanks and with piping. |
Eileen Olson |
| 4/1/2002 |
Site Added to Database |
DRO. |
Elizabeth Stergiou |
| 4/1/2002 |
Update or Other Action |
Staff toured the island with representatives from several organizations. The Audubon Society is interested in assisting the USGS in purchasing a parcel on the island from a private landowner. The lot was previously used by the Air Force as a White Alice Communication Station. For the last 25 years the USGS has sponsored a bird research program on the subject lot. One of the radar towers has been converted into a rookery and observation lab for Kittiwakes and Pelagic Cormorants. There is concern about the potential contaminant issues complicating a property transfer. Staff explained that with a willing and able responsible party, an agreement could be drafted to eliminate environmental liability from the purchaser. Representatives from the Nature Conservancy and Chugach Alaska Corporation were also on the tour. |
Jeff Brownlee |
| 4/1/2002 |
Update or Other Action |
Requested and received previously unsubmitted Final Release Investigation Report dated January 2001 and 2000 Groundwater Sampling dated January 2002. |
Eileen Olson |
| 4/3/2002 |
Site Ranked Using the AHRM |
Worked with DB administrator to re-rank site: changed groundwater use value from 0.4 to 0.8. |
Eileen Olson |
| 4/4/2002 |
Update or Other Action |
Summarized site concerns for ADEC Contaminated Sites management in response to stakeholders' concerns. |
Eileen Olson |
| 4/8/2002 |
Site Ranked Using the AHRM |
Changed Environmental/Recreation area score from 5 to 0 because the FAA property is not technically on land designated as the Alaska Maritime National Wildlife Refuge, although the refuge surrounds the FAA land, and Chugach Alaska Corporation land use restrictions reflect the fact that land conveyed to that corporation is within the refuge. |
Eileen Olson |
| 9/18/2002 |
Update or Other Action |
Sent letter requesting surface water and groundwater monitoring with a schedule of monitoring to be submitted by March 31, 2003 and the monitoring to be complete by June 30, 2003. |
Elizabeth Stergiou |
| 2/8/2007 |
Update or Other Action |
Site file transferred to Lisa Maserjian in Anchorage CS office. |
Colin Craven |
| 3/12/2007 |
Exposure Tracking Model Ranking |
Initial ranking. Site broken up into the following subsites: Former Quarters, NW Landill, ATCBI Facility, and VORTAC Facility. |
Lisa Maserjian |
| 5/9/2007 |
Update or Other Action |
Receive Draft Site Investigation Report for work performed summer 2006. Work included 105 soil borings, groundwater sampling, surface water and sediment sampling. Report uses the Hydrocarbon Risk Calculator as a Method 4 option for sites that did not meet Method 2 cleanup levels. Larry Accomb was contracted for this section of the report. |
Lisa Maserjian |
| 2/13/2009 |
Update or Other Action |
See Middleton Isl Site Summary document in S:\Groups on Fairbanks\SPAR\CS\Contaminated Site Files (38)\2242 Middleton Island for recent file work. |
Daniel Fremgen |
| 9/20/2012 |
Document, Report, or Work plan Review - other |
Approved the final injection well closure report documenting the permanent closure of floor drains at Building 609. Building 609 had three floor drains, two of which do not meet the definition of Class V Injection Wells because they discharge above the ground surface. Floor drain #1, located in the engine generator room, discharged directly to the subsurface soil beneath the building. The drain was filled with clean material and capped with concrete. Results for the sample collected from below the bottom of the floor drain show diesel range organics, residual range organics, arsenic, and chromium above the cleanup level. |
Melody Debenham |
| 11/19/2012 |
Update or Other Action |
Received letter from the EPA Underground Injection Control (UIC) program documenting that the floor drain at Building 609 is now listed as permanently closed in the UIC program file with the condition that additional investigation activities will be required when the building is decommissioned. |
Melody Debenham |
| 8/19/2014 |
Update or Other Action |
Site transfered from Fred Vreeman to Keri DePalma |
Keri DePalma |
| 8/5/2015 |
Site Characterization Workplan Approved |
On July 20, 2015, the Alaska Department of Environmental Conservation (DEC) received a Draft Work Plan Groundwater Monitoring, Middleton Island FAA Station. The work plan describes the project approach and methods to be used to assess the present state of groundwater contamination at the VHF Omni-directional Range, Housing Area, and Air Traffic Control Beacon Interrogator areas of concern. DEC provided FAA with comments on the draft work plan on July 31. DEC received a satisfactory response to comments and approved the work plan on August 4, 2015. |
Joy Whitsel |
| 12/16/2016 |
Document, Report, or Work plan Review - other |
On November 21, 2016, the Alaska Department of Environmental Conservation (DEC) received a Draft 2016 Groundwater Monitoring Report for Middleton Island Federal Aviation Administration (FAA) Station, Middleton Island, Alaska. The report describes groundwater sampling activities and results at three areas of concern: Air Traffic Control Beacon Interrogator (ATCBI); Former Housing Area (FHA); and Very High Frequency (VHF) Omni-directional Range (VOR). DEC requested minor clarifications and/or edits to the text. |
Joy Whitsel |
| 1/1/2017 |
Site Characterization Report Approved |
DEC approves the groundwater monitoring report. The report describes groundwater sampling activities and results at three areas of concern: Air Traffic Control Beacon Interrogator (ATCBI); Former Housing Area (FHA); and Very High Frequency (VHF) Omni-directional Range (VOR). Analytical results of groundwater indicate DRO remains at concentrations greater than the DEC groundwater cleanup levels at the ATCBI and the FHA. Benzene, ethylbenzene, 1-methylnaphthalene, 2-methylnaphthalene, and naphthalene were detected at concentrations greater than DEC groundwater cleanup levels at the VOR. Additionally, lead was detected at one well at the VOR at a concentration greater than the associated DEC groundwater cleanup level; however, the analytical results for lead did not meet quality assurance criteria. Therefore, lead remains a potential COC at the VOR. |
Joy Whitsel |
| 6/29/2018 |
Update or Other Action |
In correspondence between the Federal Aviation Administration (FAA) project manager and the DEC project manager, the FAA contract for a remedial investigation (RI) to address remaining data gaps at the Middleton Island sites has not yet been awarded. The FAA expects the RI work to be awarded soon, and to start planning for fieldwork during the summer 2019 season. DEC will need to follow up with the FAA on the timeline for when this work will be conducted. |
Erica Blake |
| 5/13/2019 |
Document, Report, or Work plan Review - other |
DEC approved the 2019 FAA Middleton Island Release Investigation Work Plan. Work to be conducted includes UVOST RI at the ATCBI, TACAN, Bulk Tank/Burn Pad, Buildings 100-102, Building 104, Building 105, Building 300, Building 600, and Building 602. GW monitoring will occur at the ATCBI, Burn Pit, VOR, and FHA areas of concern.Soil borings will also be conducted at most AOCs. |
Kevin Fraley |
| 9/16/2020 |
Document, Report, or Work plan Review - other |
Approved 2019 Release investigation report. ADEC agrees with the recommendation for further remedial action at the ATCBI and FHA Buildings 300 & 600, and additional monitoring to occur at the VOR and FHA Bulk Fuel Tank/Burn Pad. No further action was recommended for remaining AOCs. |
Michael Hooper |
| 6/9/2021 |
Update or Other Action |
Lat/long changed to represent contamination on ANCSA conveyed land. Old CSP coordinates were 59.436984 -146.324094. Updated Lat/long represent location of Bulk Fuel Tank. Verified with satellite imagery and figures from FAA_Middleton_GWM-RI_Final_Report.pdf |
Ginna Quesada |
| 9/7/2022 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 81218 name: Former Housing Area Building 102 |
Sarah Mutter |
| 9/12/2022 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 81219 name: Former Housing Area 104 |
Sarah Mutter |
| 9/12/2022 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 81220 name: Former Housing Area Building 602 |
Sarah Mutter |
| 9/26/2022 |
Update or Other Action |
DEC reviewed eight areas of concern (AOCs) for closure as requested by the Federal Aviation Administration (FAA) for the FAA Middleton Island site, located on Middleton Island in the Gulf of Alaska: TACAN, Burn Pits, FHA Building 100, FHA Building 101, FHA Building 102, FHA Building 104, FHA Building 105, FHA Building 602. |
Sarah Mutter |
| 2/27/2023 |
Site Characterization Workplan Approved |
DEC has completed review and approved the Middleton Island Soil Removal Work Plan for the FAA. This work plan details the removal action and soil sampling to be conduction during the 2023 field season. Removal actions will occur at Building 300/Shop, Building 600/Engine Generator and at four location at the 2007 Pipeline Removal Area. A background soil concentration study for arsenic will also be conducted. |
Kelly Walker |
