Site Report: FAA Skwentna Station - Pesticide Sprayer Area
| Site Name: | FAA Skwentna Station - Pesticide Sprayer Area |
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| Address: | West of Swentna Airstrip, Skwentna, AK 99667 |
| File Number: | 2254.38.001 |
| Hazard ID: | 26325 |
| Status: | Active |
| Staff: | Michael Hooper, 9074515174 michael.hooper@alaska.gov |
| Latitude: | 61.968591 |
| Longitude: | -151.226169 |
| 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
The FAA Skwentna Station former pesticide sprayer was located across the road from the former housing area (near the Skwentna air strip) where it had been abandoned. When it was decommissioned in 2010, there were no fluids remaining in the small tank. DDT, DDE, and DDD were detected in all the samples collected from the area beneath the former pesticide sprayer. The concentrations of contaminants detected were below the ADEC Method Two human health soil cleanup levels. However, the concentrations of the contaminants exceeded the ecological screening benchmarks and further evaluation of ecological risk is warranted.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 12/24/2014 | Site Added to Database | A new site has been added to the database | Mitzi Read |
| 12/29/2014 | Site Characterization Report Approved | The ADEC Contaminated Site Program approved the 2014 Final Site Investigation and Hydrocarbon Risk Calculator Report for the, FAA Station Skwentna, Alaska. Soil samples were collected below the former pesticide sprayer and analyzed for pesticides. The samples results contained detectable concentrations of pesticides below the ADEC Method Two cleanup levels. An initial ecoscoping evaluation indicates that potential ecological risk needs to be further assessed at this site. | Jessica Morris |
| 12/29/2014 | Exposure Tracking Model Ranking | Initial ranking with ETM completed for source area id: 79719 name: Pesticide Sprayer Area | Jessica Morris |
| 9/4/2015 | Site Characterization Workplan Approved | The ADEC Contaminated Sites Program approved the Final Work Plan Addendum No. 1 Soil Sampling For Pesticides Federal Aviation Administration, Skwentna, Alaska. | Jessica Morris |
| 9/8/2016 | Meeting or Teleconference Held | A project meeting was held to discuss the soil sampling results for the pesticide background sampling. In order to move on to the cleanup portion of this project, we will need to agree on soil and sediment cleanup levels that are protective of all pathways and receptors. | Jessica Morris |
| 7/3/2019 | Update or Other Action | Site location was updated on this date. Coordinates for this site are used to determine the presence and position of the site on BLM’s ANCSA Conveyed Land web map. | Rebekah Reams |
| 4/24/2020 | Document, Report, or Work plan Review - other | Approved remainder of workplan for work occurring in 2020 and 2021 field seasons. | Michael Hooper |
| 8/30/2022 | Document, Report, or Work plan Review - other | Approved interim remedial action report for phases one through three of the remedial action project, ADEC will issue final recommendations and comments upon review of the final project reporting next year. | Michael Hooper |
| 6/15/2023 | Site Visit | Visited Deshka Landing to address community concerns about soils coming from the Skwentna cleanup. | Michael Hooper |
| 6/20/2024 | Update or Other Action | Provided comments on the post remedial action report dated May 2024. | Michael Hooper |
| 12/2/2024 | Site Characterization Report Approved | Approved Final FAA Skwentna Post-Remedial Action Report detailing cleanup, characterization, and risk assessment occuring at FAA Skwentna Areas of Concern in the 2019 through 2023 field seasons. See attached letter for recommendations for each AOC. | Michael Hooper |
Contaminant Information
| Name | Level Description | Media | Comments |
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Control Type
| Type | Details |
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Requirements
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No associated sites were found.