Skip to content Skip to content

Site Report: FAA Big Delta Station Bldg 601 Former Utility Facility

Site Name: FAA Big Delta Station Bldg 601 Former Utility Facility
Address: 3 Miles South of Delta Junction, Allen Airfield, Fort Greely, Delta Junction, AK 99737
File Number: 120.38.004
Hazard ID: 25285
Status: Cleanup Complete
Staff: No Longer Assigned, 9074655229 dec.icunit@alaska.gov
Latitude: 63.993579
Longitude: -145.741024
Horizontal Datum:WGS84

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

The former Utility Facility consists of Building 601 and adjacent areas. Building 601 is located at the west end of the quarters area tract. Building 601 housed the drinking water and heating system for the quarters area, a repair shop with an auto bay, and a general storage area. There was one 2,000-gallon AST (6-A-003) located 2 feet east of northeast corner of Building 601. This AST contained heating oil. Stained soil was observed at the ground surface between the AST and the north side of Building 601. Two floor drains were also located in the building.

Action Information

Action Date Action Description DEC Staff
12/8/2008 Site Added to Database A new site has been added to the database Mitzi Read
12/4/2009 Cleanup Complete Determination Issued The Alaska Department of Environmental Conservation, Contaminated Sites Program has completed a review of the environmental records associated with the FAA Big Delta Facility which includes Regulated Tanks at the RCAG and VORTAC facilities, the Fuel Transfer Station, Building 601, Building 603, Building 604, Building 400, and two areas identified as Tar and Debris sites. Based on the information provided to date, it has been determined that the contaminant concentrations remaining on site do not pose an unacceptable risk to human health or the environment and this site will be closed. Due to the potential presence of petroleum contaminated soil above the migration to groundwater pathway cleanup level for DRO (250 mg/kg), and one small area of PCB contaminated soil that is slightly above the direct contact level of 1 mg/kg, the landowner (US Army Fort Greely) will record the area of residual contamination in the Property Management System and Master Land Use Plan in accordance with 18 AAC 75.375 (b)(4), and notify DEC if the current land use changes. Tana Robert
12/10/2009 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 78624 name: Former Floor Drains Tana Robert
12/10/2009 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 78625 name: 2,000-gallon AST (AST 6-A-003) Tana Robert
7/23/2015 Update or Other Action DEC issued a determination to the Federal Aviation Administration (FAA) regarding the maintenance of closure conditions at four contaminated sites at the Big Delta FAA Station. Following correspondence with the US Army, the landowner of the sites, it was determined that the FAA Big Delta sites had been integrated into the Ft. Greely Land Management System, and that the land management system’s protocols ensured that the closure conditions at the FAA Big Delta sites would be maintained. Therefore, The US Army has demonstrated to the Department’s satisfaction that processes are in place that ensures future site users that the residual contamination is defined on planning maps and will be taken into consideration when any future construction projects in the area are planned. This determination will be attached to the DEC Contaminated Sites Program Database site entries. Monte Garroutte

Contaminant Information

Name Level Description Media Comments
PCBs - Total Other Soil The boiler room North floor drain discharged directly into the soil. A sample collected from the excavation east sidewall collected 2 inches below the concrete slab had a PCB result of 1.32 mg/Kg PCB which was slightly above the direct contact level of 1 mg/kg.
DRO Other Soil The spetic system lift tank sample results indicated DRO at 429 mg/Kg in soil above the migration to groundwater pathway cleanup level for DRO (250 mg/kg). Groundwater is estimated to be between 175-225 feet below ground surface.

Control Type

Type Details
No ICs Required

Requirements

Description Details
Advance approval required to transport soil or groundwater off-site.

No associated sites were found.

Missing Location Data

Because the GIS location data for this site has not been entered, we cannot direct you to its position on the map. Click "Continue" to proceed to the Contaminated Sites Web Map or "Close" to return to the site report.
Continue     Close