Site Report: FAA - Middleton Island Facility Gulf of Alaska
| Site Name: | FAA - Middleton Island Facility Gulf of Alaska |
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| Address: | Middleton Island, Cordova, AK 99574 |
| File Number: | 2242.38.001 |
| Hazard ID: | 24696 |
| Status: | Active |
| Staff: | Kelly Walker, 9074512166 kelly.walker@alaska.gov |
| Latitude: | 59.436984 |
| Longitude: | -146.324094 |
| Horizontal Datum: | NAD27 |
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We make every effort to ensure the data presented here is accurate based on the best available information currently on file with DEC. It is therefore subject to change as new information becomes available. We recommend contacting the assigned project staff prior to making decisions based on this information.
Problems/Comments
FAA Middleton Island station remediation and cleanup work is ongoing. Areas of Concern (AOCs) at FAA Middleton include the Tactical Air Navigation (TACAN), Former Housing Area (FHA) Buildings 100, 101, 102, 103, 104, and 602, the Air Traffic Control Beacon Indicator (ATCBI), Burn Pit, FHA Bulk Fuel Tank/Burn Pad, FHA Building 300/Shop, FHA Building 600/Engine Generator, and 2007 Pipeline Removal Areas. Current work focuses on delineation of soil contamination at the FHA Building 300, FHA Building 600, and 2007 Pipeline Removal Area. During the 2023 field season, contaminated soils were excavated from Building 300 and Building 600, with additional delineation needed to the west of Building 300 and to the East of Building 600. Contaminated soils were also excavated from the 2007 Pipeline Excavation Area, with additional delineation needed in the vicinity of Buildings 103 and 104. Contaminants of concern include volatile organic compounds (VOCs), gasoline range organics (GRO), diesel range organics (DRO), residual range organics (RRO), and polycyclic aromatic hydrocarbons (PAHs).
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 8/10/1996 | Site Added to Database | Former Staff | |
| 8/10/1996 | Leaking Underground Storage Tank Cleanup Initiated - Petroleum | Tanks removed | Former Staff |
| 8/10/1996 | Leaking Underground Storage Tank Release Confirmed - Petroleum | LUST Site created in CSP for source area ID 77703 | Former Staff |
| 7/20/2006 | Underground Storage Tank Site Characterization or Assessment | Approved 2006 SI Work for site. | Mike Jaynes |
| 7/27/2006 | Update or Other Action | updated file number | Wendy Uzzell |
| 2/8/2007 | Update or Other Action | Per PM, changed PM to new staff. | April Woolery |
| 3/7/2007 | Exposure Tracking Model Ranking | Intitial Ranking Complete for Source Area: 77703 (Autogenerated Action) | |
| 8/19/2014 | Update or Other Action | Site transferred from Fred Vreeman to Keri DePalma. | Keri DePalma |
| 4/26/2016 | Update or Other Action | Site assigned to project manager for evaluation of cleanup progress, and follow up. | Fred Vreeman |
| 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 |
| 12/14/2018 | Update or Other Action | Email exchange with FAA contact Dave Hanneman, who advised that work is planned at this site for 2019 and that a draft work plan should be expected in early 2019. | Kevin Fraley |
| 5/13/2019 | Cleanup Plan Approved | 2019 work plan approved. Release investigations will be conducted using an ultra-violet optical screening tool (UVOST) at areas of concern within the Middleton Island site. Also, groundwater monitoring will be conducted at ATCBI, Burn Pit, the VHF Omni-Directional Range, and the Former Housing Area. Additionally, soil samples will be collected at the Burn Pit, surveying will be conducted, and site restoration to pre-investigation conditions will be undertaken. | Kevin Fraley |
| 9/16/2020 | Site Characterization Report Approved | FAA Middleton Island Release Investigation Report reviewed and approved. This report details the 2019 investigation and monitoring work. Subsurface petroleum characterization was conducted using an ultra-violet optical screening tool (UVOST) and analytical soil sampling at several areas of concern (AOCs). Grounwater monitoring was conducted at the Air Traffic Control Beacon Indicator (ATCBI), Burn Pit, Very High Frequency Omni-directional Range (VOR), and Former Housing Area (FHA). Soil samples were collected at the Burn Pit and surveying was conducted. Analytical results were used as inputs to the hydrocarbon risk calculator to evaluate risk at each AOC. Additional remedial action is recommended at ATCBI and FHA Buildings 300 and 600. Additional monitoring is recommended at VOR and FHA Bulk Fuel Tank/Burn Pad. | Kelly Walker |
| 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 |
| 5/10/2024 | Document, Report, or Work plan Review - other | DEC reviewed and approved the "2023 Middleton Island Soil Removal Report" for the former FAA Middleton Island station. This report detailed the removal of contaminated soils at the Building 300/Shop and Building 600/Engine Generator sites and the 2007 Pipeline Removal Areas. Additional excavation of contaminated soils is needed at both the Building 300/Shop and Building 600/Engine Generator sites and will be conducted during future mobilizations. Additional investigation will be conducted at the Pipeline Removal areas during future mobilizations. | Kelly Walker |
Contaminant Information
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Control Type
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Requirements
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There are no documents for this site report.
No associated sites were found.