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Site Report: Kalakaket Creek RRS - Vehicle Maintenance Garage [OT001]

Site Name: Kalakaket Creek RRS - Vehicle Maintenance Garage [OT001]
Address: South Shore of Kalaket Creek, 22 Miles South of Galena, Galena, AK 99741
File Number: 860.38.008
Hazard ID: 4670
Status: Cleanup Complete
Staff: No Longer Assigned, 9074655229 dec.icunit@alaska.gov
Latitude: 64.430806
Longitude: -156.836056
Horizontal Datum:NAD27

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

Diesel surface stains and leaking underground storage tank. TPH detected in surface soil up to 40,200 mg/kg. DRO detected up to 23,000 mg/kg (1994 PA/SI). Hot spots were highly contaminated but limited in extent. Located near paint storage and antenna at upper camp. The site was investigated during the 2007 remedial investigation. Based on the previous sample results, both discrete and mulit incremental sampling methods were used to characterize the current site conditions. None of the samples collected exceeded the ingestion or inhalation cleanup levels. A dry well was discovered when the contents of the building were removed in preparation for demolition. Samples from the well exceeded cleanup levels for petroleum and the RCRA metals chromium and lead. A sample of the soil also failed TCLP for lead. The Air Force contacted EPA due to the difficulty of moving soil from this remote site. EPA granted an extension to the 90 day time frame for storage of RCRA hazardous waste. The contaminated soil was excavated and placed in super sacks and stored in connex containers until it could be moved to Galena by cat train during the winter of 2009/2010, and then barged out of state after the spring breakup. Confirmation samples collected from the bottom of the excavation were all below cleanup levels.

Action Information

Action Date Action Description DEC Staff
7/28/2008 Site Added to Database Site added to the database. Mitzi Read
5/24/2010 CERCLA ROD Approved The CERCLA ROD, Petroleum Decision Document, and LF001 Decision Document were signed by DEC and the USAF. Kim DeRuyter
7/25/2010 Cleanup Complete Determination Issued Final confirmation results documented in the May 2010 Cleansweep Final Report were all below cleanup levels. Kim DeRuyter
12/19/2023 Update or Other Action ACKNOWLEDGEMENT OF RECEIPT: Preliminary Assessment (PA) Report for Aqueous Film-Forming Foam (AFFF) Areas, Kalakaket Creek Radio Relay Station, Alaska. In October 2023, USAF submitted a PA Report for AFFF at the former Kalakaket RRS. While USAF does not have good documentation or information about the activities that occurred when the Kalakaket installation was active, the PA presents several lines of evidence that AFFF was stored at Kalakaket. The conclusion reached in this PA is that no further action is warranted due to a lack of documentation that AFFF was released. However, based on the cited 1991 EPA PA guidance, before 'no further action' can be recommended, USAF must be certain that CERCLA hazardous substances have never been at the site. A lack of information cannot be interpreted to indicate that no hazardous waste is present or has ever been deposited at the site. DEC acknowledges receipt of the Kalakaket AFFF PA but specifically does not approve it. In the future, additional PFAS sampling may be required in areas described in this PA. Jamie McKellar

Contaminant Information

Name Level Description Media Comments
DRO Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil

Control Type

Type Details
No ICs Required

Requirements

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

There are no documents for this site report.

No associated sites were found.

Missing Location Data

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State of Alaska Department of Environmental Conservation

P.O. Box 111800
Juneau, AK 99811-1800
Phone: 907-465-5066
Fax: 907-465-5245
TDD: 800-770-8973
Physical Location: 410 Willoughby