Site Report: Kalakaket Creek RRS - Equipment Building [OT001]
| Site Name: | Kalakaket Creek RRS - Equipment Building [OT001] |
|---|---|
| Address: | South Shore of Kalakaket Creek, 22 Miles South of Galena, Galena, AK 99741 |
| File Number: | 860.38.008 |
| Hazard ID: | 4675 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 64.430806 |
| Longitude: | -156.836056 |
| Horizontal Datum: | NAD27 |
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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
Dieldrin, DRO and PCBs were dumped on ground surface outside building doors, dieldrin and PCBs are co-located. Contaminants are greater than 10 times the cleanup level. . Building is located at upper camp, so migration to groundwater is not considered a complete pathway. A transformer was located on a concrete pad on the southeast corner of the building. PCBs and Dealdrin were colocated in soil near the pad; PCB were detected up to 3,971 mg/kg in the soil. 30 cubic yards of soil was removed from the site. Discrete and multi-increment testing confirmed that dealdrin and PCB concentrations were below the cleanup level. During the 2009 Clean Sweep and remedial action, four 600 kilowatt diesel generator were drained of fluids and placed in the on-site Construction and Debris landfill. Asbestos, antifreeze, radio components, and other miscellaneous components were removed and shipped offsite prior to demolition of the facility. Oil from the generatos was recycled and burned for heat recovery. A total of 44 cubic yards of PCB, and dieldrin contaminated soil was shipped offsite for disposal, 14 cubic yards of PCB contaminated soil with concentrations below 10 mg/kg was placed in the onsite landfill. The DRO previously noted was associated with the Antenna Fuel System, information regarding the excavation and disposal of DRO soil can be found in the Antenna Fuel System site.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 7/28/2008 | Site Added to Database | Site added to the database. | Mitzi Read |
| 7/29/2008 | Exposure Tracking Model Ranking | Initial ranking with ETM completed. High concentrations of dieldrin and PCBs found in surface soil. Ranked with a high potential exposure for ecological pathways, current exposure for direct contact with surface soil, future exposure for direct contact with subsurface soil, low potential exposure for wild or farmed foods ingestion and de minimis exposure for outdoor air inhalation. | Kim DeRuyter |
| 4/6/2010 | Document, Report, or Work plan Review - other | Approximately 62 cubic yards of contaminated soil was removed from 5 separate excavations at the Equipment Building (EQB) during the 2009 Clean Sweep and remedial action. The excavations were guided by field screening with the onsite GCMS. When screening samples indicated contaminant concentrations at the limits of the excavation were below 1 ppm, the excavation was divided into grids, and a DEC approved multi-incremental sampling technique was used to collect confirmation samples. These samples were then analyzed by both the on-site and offsite lab. The offsite analytical lab confirmed that PCB concentrations were below 1 ppm, and the site was backfilled with clean soil. Discrete confirmation samples were also collected and analyzed for Dieldrin, the sample results were non-detect. | Kim DeRuyter |
| 4/21/2010 | Update or Other Action | A transformer was located on a concrete pad on the southeast corner of the building. PCBs and Dealdrin were colocated in soil near the pad; PCB were detected up to 3,971 mg/kg in the soil. 30 cubic yards of soil was removed from the site. Discrete and multi-increment testing confirmed that dealdrin and PCB concentrations were below the cleanup level. | James Ward |
| 4/30/2010 | Update or Other Action | During the 2009 Clean Sweep and remedial action, four 600 kilowatt diesel generator were drained of fluids and placed in the on-site Construction and Debris landfill. Asbestos, antifreeze, radio components, and other miscellaneous components were removed and shipped offsite prior to demolition of the facility. Oil from the generatos was recycled and burned for heat recovery. A total of 44 cubic yards of PCB, and dieldrin contaminated soil was shipped offsite for disposal, 14 cubic yards of PCB contaminated soil with concentrations below 10 mg/kg was placed in the onsite landfill. The DRO previously noted was associated with the Antenna Fuel System, information regarding the excavation and disposal of DRO soil can be found in the Antenna Fuel System site. | James Ward |
| 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 for PCBs were below 1 ppm, and Dieldrin results were non-detect. | Kim DeRuyter |
| 9/14/2010 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 75742 Equipment Building. All pathways are incomplete or deminimis exposure. | 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 |
|---|---|---|---|
| PCBs - Total | < Method 2 Most Stringent | Soil | |
| Dieldrin | < Method 2 Most Stringent | Soil | |
| DRO | < Method 2 Most Stringent | Soil | The DRO previously noted was associated with the Antenna Fuel System, information regarding the excavation and disposal of DRO soil can be found in the Antenna Fuel System site. |
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.