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Site Report: Fort Wainwright Bldg 3479 Vehicle Maintenance Shop

Site Name: Fort Wainwright Bldg 3479 Vehicle Maintenance Shop
Address: Building 3479; NW of Luzon Ave and Chippewa Ave Intersection, Fort Wainwright, AK 99703
File Number: 108.38.138
Hazard ID: 26976
Status: Active
Staff: Carly Jensen, 9072697558 carly.jensen@alaska.gov
Latitude: 64.817535
Longitude: -147.617851
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

Fort Wainwright Building 3479 (B3479) has historically been used as a vehicle maintenance shop, and the parking lot has been used to stage and park various military vehicles. Used oil underground storage tanks (USTs) have been present in the past at this site and within the vicinity of the current investigation area. The USTs have been removed (See DEC File Number 108.26.022 (Hazard IDs 24183 and 1096) for information on the USTs). On 19 May 2017, dark colored water was found ponding against the foundation wall of B3479 during excavation activities with no obvious smell or sheen. The water was localized to a 6-foot section of the wall, bounded by two reinforced concrete walls in the subsurface extending perpendicular from the main building. The water level in this section was higher than the expected level of groundwater and water did not pond along any other sections of the foundation wall. Water samples (one primary and one duplicate) were collected from the ponded water. Approximately 10 to 20 cubic yards of gravel were stockpiled adjacent to the excavation. One primary characterization and one field duplicate sample were collected from the stockpiled gravel. One characterization sample was collected from the sediment below the ponded water and another from the sidewall of the excavation. Samples were submitted for the following laboratory analyses: gasoline range organics (GRO), diesel range organics (DRO), residual range organics (RRO), volatile organic compounds (VOCs), Low-level VOCs, semi-volatile compounds (SVOCs), polycyclic aromatic hydrocarbons (PAHs), Resource Conservation and Recovery Act (RCRA) Metals, and polychlorinated biphenyls (PCBs). Contaminants of potential concern (COPCs) identified are; DRO, RRO, barium, cadmium, lead, mercury, selenium, and naphthalene (for soil); DRO, lead, mercury, 1,2,3-trichloropropane, 1,2-dibromoethane, naphthalene, and PCBs (for surface water). Further investigation of contamination extent, and determining whether groundwater in the area has been impacted is needed. The corresponding Army HQAES site number is: 02871.1067.

Action Information

Action Date Action Description DEC Staff
1/29/2019 Site Added to Database A new site has been added to the database Mitzi Read
5/16/2019 Document, Report, or Work plan Review - other DEC approves the 2018 Preliminary Source Evaluation Report, FTW373C Organizational Vehicle Parking and Building 3479, U.S. Army Garrison Alaska (dated April 2019). The document described preliminary source evaluation (PSE) activities at the FTW373C Organizational Vehicle Parking site and the nearby Building 3479 site on Fort Wainwright, Alaska (FWA). The 2018 laboratory soil and groundwater results at the Building 3479 site did not show contaminant concentrations exceeding Environmental Protection Agency (EPA) Regional Screening Levels (RSLs) or DEC cleanup levels remaining at the site. The Building 3479 site has been recommended for no further action. At the Organizational Vehicle Parking area, only residual range organics (RRO) were detected in the groundwater above the DEC cleanup levels. The Organizational Vehicle Parking area site is recommended to be moved into the 2-Party Program and the RRO in the groundwater investigated further. Erica Blake
12/23/2025 Document, Report, or Work plan Review - other The Alaska Department of Environmental Conservation (DEC) received the Draft 2025 CERCLA Sites and Two-Party Sites Work Plan Addendum on December 17, 2025. DEC has reviewed the Draft 2025 CERCLA Sites and Two-Party Sites Work Plan Addendum which outlines the management and treatment of Investigation Derived Waste (IDW) water generated on Fort Wainwright as part of the ongoing groundwater monitoring program at the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) Operable Units (OUs) along with the Two-Party sites. State comments were submitted to Army on December 23, 2025. Carly Jensen

Contaminant Information

Name Level Description Media Comments

Control Type

Type Details

Requirements

Description Details

There are no documents for this site report.

Hazard ID Site Name File Number
24183 Fort Wainwright - Bldg 3479 Vehicle Maint. 108.26.022
1096 Fort Wainwright (2P) Bldg. 3479 Vehicle Maint. 108.26.022

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State of Alaska Department of Environmental Conservation

P.O. Box 111800
Juneau, AK 99811-1800
Phone: 907-465-5066
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