Site Report: Allakaket Abandoned Diesel Pipelines
| Site Name: | Allakaket Abandoned Diesel Pipelines |
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| Address: | Along Second and Third Avenue, Allakaket, AK 99720 |
| File Number: | 800.38.005 |
| Hazard ID: | 25625 |
| Status: | Active |
| Staff: | Jamie McKellar, 9074515175 jamie.mckellar@alaska.gov |
| Latitude: | 66.564147 |
| Longitude: | -152.649650 |
| Horizontal Datum: | WGS84 |
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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
An abandoned three-inch welded steel diesel pipeline, constructed in 1985, runs along Third Avenue from the old airstrip header to a “T” junction. From there, one segment extends northeast to the Former City Power House, and the other crosses under Third Avenue and continues along the south side of the road to the Former City Diesel Tank Farm. A second diesel pipeline is also present between the tank farm and the Yukon-Koyukuk School District property. The original pipeline in this corridor was replaced in 1991 due to leaks. Short sections of piping remain visible near the tank farms and former power plant, while longer sections have subsided into the tundra and become covered by vegetation. During the 2008 Targeted Brownfields Assessment, several locations along the pipeline corridors showed evidence of contamination, and all pipe joints, valves, and breaks were marked for screening. Ten primary soil samples, one duplicate, and one discretionary sample were collected. One sample exceeded the DRO maximum allowable concentration (18,500 mg/kg), and GRO and xylenes exceeded migration-to-groundwater cleanup levels. While exact sample depths were not documented, permafrost observations indicate sampling likely occurred within approximately five feet of the ground surface. Permafrost was encountered at depths of 1–2 feet in vegetated areas and 3–5 feet in disturbed areas. No samples were collected where the pipeline is buried, and the full extent of contamination at individual sampling locations could not be determined.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 3/11/2011 | Site Added to Database | A new site has been added to the database | Deborah Williams |
| 3/11/2011 | Brownfields Award | DEC reviewed the Targeted Brownfield Assessment ($21,573 EPA TBA funds expended) on several areas in Allakaket. One of the areas was the diesel pipeline that runs through town. Locations that showed obvious evidence of contamination and all pipe joints, valves, and breaks were marked for screening. A total of 20 locations were screened along the pipeline corridor. Ten primary soil samples, one duplicate and one discretionary sample were collected from along the pipeline corridors. DRO exceeds its applicable soil cleanup level in three samples locations, all located near pipeline valves. One of the discretionary samples collect along the pipeline from a community member's former garden area had DRO levels up to 18,500 mg/kg and total xylenes at 135.7 mg/kg. Report covers multiple sites in Allakaket. | Deborah Williams |
| 12/31/2011 | Update or Other Action | Backdated 9/23/2025. Note for clarification - the 2011 Brownfields Assessment addressed the following sites: Allakaket Former City Gasoline Tank Farm (Haz ID 25628); City of Allakaket Diesel Tank Farm (Haz ID 4545); Allakaket Former City Power House (Haz ID 25630); Allakaket Former AP&T Power House (Haz ID 25629); and Allakaket Abandoned Diesel Pipelines (Haz ID 25625). Samples were also collected at the Allakaket Old Generator Shack (Haz ID 25627) | Jamie McKellar |
| 7/27/2017 | Update or Other Action | Discussed with Tanana Chiefs Conference Brownfield Technician the next steps availability to the community to move toward cleanup. The 2010 Brownfield assessment is still valid and should be used as a guide in developing remediation priorities | Joy Whitsel |
Contaminant Information
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Control Type
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Requirements
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No associated sites were found.