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Site Report: Bald Mountain Airstrip UST #1007

Site Name: Bald Mountain Airstrip UST #1007
Address: Bald Mountain;11 nautical miles east of Talkeetna, AK, Talkeetna, AK 99676
File Number: 2258.26.013
Hazard ID: 27804
Status: Active
Staff: Alena Voigt, 9072697556 alena.voigt@alaska.gov
Latitude: 62.307769
Longitude: -149.751516
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

In October 2021, a regulated 2000-gallon diesel underground storage tank (UST) was removed, and contamination was found in the soil above ADEC migration to groundwater clean-up levels. This UST was installed in 1991 at the Bald Mountain Airstrip and was used to fuel a generator. The UST was located in a vault made of heavy timbers with the bottom of the UST extending about 1.5 feet below surrounding ground surface. The contamination source is likely due to numerous small spills during refueling operations over the last 30 years. The soil samples with diesel range organics (DRO) contamination also had detected levels of volatile organic compounds (VOCs), gasoline range organic (GRO), and polynuclear aromatic hydrocarbons (PAH) all below ADEC migration to groundwater clean-up levels. Approximately two cubic yards of contaminated soil were excavated and placed back in the excavation after soil samples (in-situ) were collected.

Action Information

Action Date Action Description DEC Staff
10/24/2022 Site Added to Database A new site has been added to the database Mandy Salminen
10/24/2022 Leaking Underground Storage Tank Release Confirmed - Petroleum LUST site created in CSP database for source area Bald Mountain Airstrip UST #1007, 81235 Mandy Salminen
11/21/2022 Potentially Responsible Party/State Interest Letter Potential Responsible Party (PRP) Letter sent to GCI. Alena Voigt
11/23/2022 Potentially Responsible Party/State Interest Letter PRP Letter sent to AWN Tower Company LLC. Alena Voigt
12/7/2022 Document, Report, or Work plan Review - other The ADEC provided comments in response to the "Bald Mountain UST Closure Site Assessment Report, dated December 14, 2021. ADEC provided comments and requests a revised report be re-summitted to the department. Alena Voigt
8/31/2023 Meeting or Teleconference Held Teleconference with RP (GCI) and environmental consultant regarding what needs to be done at site. Additional site characterization is needed. CSP is requesting a work plan. Alena Voigt

Contaminant Information

Name Level Description Media Comments

Control Type

Type Details

Requirements

Description Details

There are no documents for this site report.

No associated sites were found.

Missing Location Data

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