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Site Report: Kogru River / FUDS Western Landfill Cell 4

Site Name: Kogru River / FUDS Western Landfill Cell 4
Address: W Side of Harrison Bay; 100 Miles W of Deadhorse, Nuiqsut, AK 99789
File Number: 320.38.005
Hazard ID: 25759
Status: Cleanup Complete
Staff: No Longer Assigned, 9074655229 dec.icunit@alaska.gov
Latitude: 70.575759
Longitude: -152.272011
Horizontal Datum:NAD83

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 Kogru Western Landfill is located adjacent to the Kogru River. The landfill was part of the Husky Oil Kogru site remediation in 1981; an unknown number of drums were buried in various locations, including the Kogru Landfill. A geophysical investigation performed in 2005 by USGS identified four concentrations of buried waste in the Western Landfill, referred to as Cells 1, 2, 3, and 4. Cell 4 was eroding into the Kogru River and was completely excavated during a removal action in 2009. Prior to its removal, soil samples from Cell 4 detected elevated diesel range and residual range organics in the soil, petroleum sheen was released into the Kogru River, and surface water samples detected concentrations of metals (arsenic, chromium, copper, lead, nickel, silver, and zinc) that exceed acute water quality criteria. Eroding waste included batteries, drums, and other miscellaneous wastes. During the removal action, lead and PCBs were also identified as soil contaminants. Cells 1, 2, and 3 are farther from the shoreline and are not in immediate risk of eroding, and will be managed as a separate site. Prior to 11/10/2011 all of the Kogru installation was managed as one site on the CS database. The installation has been separated into three sites for separate management and closure: Main Cantonment; Western Landfill Cell 4; and Western Landfill Cells 1, 2, and 3.

Action Information

Action Date Action Description DEC Staff
1/1/2006 Update or Other Action USGS issued a report "Geophysical Investigations of Selected Infrastructure Sites with the National Petroleum Reserve, Alaska" that presented results of geophysical investigation performed in 2005 at several sites in NPRA, including the Western Landfill at Kogru. (Report was released sometime in 2006; actual publication date of report is not known.) Report identified four cells of buried waste, which it identified as Cells 1, 2, 3, and 4. Cell 4 was eroding into the Kogru River at the time of the report. Tamar Stephens
2/9/2006 Meeting or Teleconference Held Tamar Stephens attended Restoration Advisory Board Roundtable at Alaska Forum on the Environment. Tamar Stephens
3/9/2006 Meeting or Teleconference Held Tamar Stephens attended Barrow Restoration Advisory Board meeting. Tamar Stephens
6/22/2006 Meeting or Teleconference Held Emily Youcha represented DEC at Barrow Restoration Advisory Board meeting in Tamar Stephens' place. Tamar Stephens
9/14/2006 Meeting or Teleconference Held Tamar Stephens attended Barrow Restoration Advisory Board meeting. Tamar Stephens
12/7/2006 Meeting or Teleconference Held Tamar Stephens attended Barrow Restoration Advisory Board meeting. Tamar Stephens
12/7/2006 Update or Other Action Letter sent to Ms. Mollie TeVrucht, Corps of Engineers, requesting a removal action at western landfill. Letter cited evidence of contamination, including sample results and photographs of drums and batteries eroding from face of landfill into Kogru River. Letter drafted by Tamar Stephens, project manager; finalized and sent by John Halverson, Environmental Program Manager. Tamar Stephens
3/8/2007 Meeting or Teleconference Held Tamar Stephens attended Barrow Restoration Advisory Board meeting. Tamar Stephens
6/26/2007 Update or Other Action Received letter from Ms. Mollie TeVrucht of Corps of Engineers in response to John Halversons letter from February 22, 2007. Letter states that Corps does not agree that there is adequate documentation of a release or threat of hazardous substances at the landfill to warrant a removal action. Tamar Stephens
6/28/2007 Meeting or Teleconference Held Zachary Richter represented DEC at Barrow Restoration Advisory Board meeting in Tamar Stephens' place. Tamar Stephens
7/19/2007 Update or Other Action Received draft Remedial Investigation Work Plan and Sampling and Analysis Plan to conduct limited additional sampling at surface water and sediments at face of eroding landfill and to collect background samples in Harrison Bay. Tamar Stephens
7/30/2007 Document, Report, or Work plan Review - other Sent review letter and comments on draft Remedial Investigation Work Plan and Sampling and Analysis Plan. Requested a clearer statement of objectives and additional sampling at the eroding face of the landfill. Tamar Stephens
9/28/2007 Site Characterization Workplan Approved Approval letter sent for final Work Plan and Sampling and Analysis Plan to characterize surface water and soil/sediment at the toe of the landfill bluff, and to collect background samples for metals. DEC previously reviewed the draft Work Plan and Sampling and Analysis Plan and sent review comments in a letter dated July 30, 2007. DEC comments on the draft documents were resolved through telephone discussions and e-mail communication prior to mobilization to the field. Field work was performed in August, 2007. The only required changes were for verification that the laboratory has current DEC approved for the types of analyses required by this project, and that the person conducting the sampling meets the requirements of a “qualified person” as defined in 18 AAC 75.990 (100). The approval letter was sent following receipt of the final work plan that included the laboratory and qualified person information. Tamar Stephens
3/11/2008 Document, Report, or Work plan Review - other DEC reviewed and sent comments on draft Site Inspection Report that presented results of sampling conducted in August 2007. Tamar Stephens
6/2/2008 Update or Other Action The Corps of Engineers issued a revised Project Inventory Report (INPR) to make three sites, or projects, at Kogru. Previously, the entire facility was considered one site or project. The three projects created by the revised INPR consist of Project No. F10AK0022-03 Main Cantonment (this is the original project number); F10AK0022-04 Western Landfill Cell 4 (the eroding cell); and F10AK0022-05 Western Landfill Cells 1, 2, and 3. Tamar Stephens
6/19/2008 Site Characterization Workplan Approved Reviewed and sent approval letter for Final Kogru (POW-B) DEW-Line Station Site Inspection Report. The report documented shoreline erosion at a rate of 0.4 to 2.15 feet over the past 20 years; exceedance of water quality criteria for copper, lead and nickel in marine water; petroleum sheen coming from the toe of the landfill; photographic documentation of industrial-nature solid waste eroded out of the landfill into the water, including drums, battery parts and automobile parts. Tamar Stephens
9/3/2008 Document, Report, or Work plan Review - other Reviewed and sent comments on draft 2008 Engineering Evaluation / Cost Analysis report. Report evaluates alternatives for a removal action for the eroding cell, Cell #4, at the Kogru landfill. Tamar Stephens
10/13/2008 Document, Report, or Work plan Review - other Reviewed and sent comments via electronic markup of draft Action Memorandum for a removal action for Cell #4 of the landfill. Tamar Stephens
10/21/2008 Meeting or Teleconference Held Tamar Stephens participated in teleconference with Corps of Engineers and contractor to resolve comments from all reviewers to finalize the Engineering Evaluation / Cost Analysis for a removal action of Cell #4 of the Kogru landfill. Tamar Stephens
10/29/2008 Update or Other Action Received final Engineering Evaluation / Cost Analysis Report for Landfill Cell #4 Removal Action. Tamar Stephens
1/14/2009 Document, Report, or Work plan Review - other Reviewed and sent comment letter on draft Work Plan for interim removal action at landfill Cell #4. Tamar Stephens
2/17/2009 Meeting or Teleconference Held Tamar Stephens attended public meeting held by Corps of Engineers in Barrow to present information on planned interim removal action for Landfill Cell #4. Tamar Stephens
3/13/2009 Meeting or Teleconference Held Contaminated sites staff Tamar Stephens attended Barrow Restoration Advisory Board Meeting. Tamar Stephens
3/20/2009 Interim Removal Action Approved Reviewed and sent approval letter for final Work Plan – Kogru West Landfill Cell 4 Interim Removal Action. Interim action will consist of excavation of contents of Cell #4; segregation of contents into various waste streams; appropriate disposal of each waste stream; and confirmation sampling. Work is scheduled for late March through early May, 2009. Tamar Stephens
9/17/2009 Meeting or Teleconference Held Contaminated sites staff Tamar Stephens attended Barrow Restoration Advisory Board Meeting. Tamar Stephens
11/13/2009 Document, Report, or Work plan Review - other Reviewed and sent comments on draft Interim Removal Action Report, Kogru West Landfill Cell 4. Tamar Stephens
12/31/2009 Meeting or Teleconference Held Contaminated sites staff Tamar Stephens attended Barrow Restoration Advisory Board Meeting. Tamar Stephens
1/5/2010 Document, Report, or Work plan Review - other Reviewed and sent approval letter for final Interim Removal Action Report, Kogru West Landfill Cell 4. Report documents successful excavation, segregation, and proper disposal of contents of landfill cell #4, and confirmation sampling showing that cleanup levels were met. Tamar Stephens
3/18/2010 Meeting or Teleconference Held Contaminated sites staff Tamar Stephens attended Barrow Restoration Advisory Board Meeting. Tamar Stephens
6/17/2010 Meeting or Teleconference Held Contaminated sites staff Tamar Stephens attended Barrow Restoration Advisory Board Meeting. Tamar Stephens
9/24/2010 Update or Other Action Cleanup Complete Determination was made for the Western Landfill Cell 4 following completion of a removal action in 2009. Environmental Program Manager John Halverson signed the "Declaration of Project Closure Decision for Formerly Used Defense Site HTRW Project Kogru River DEW Line Site West Landfill Cell 4 North Slope Borough, Alaska (F10AK002204)" on 9/24/2010. The Declaration was also signed by Colonel Reinhard w. Koenig, District Commander, US Corps of Engineers, on 9/23/2010. This determination applies only to Cell 4 of the Western Landfill. Tamar Stephens
10/13/2010 Meeting or Teleconference Held Contaminated sites staff Tamar Stephens attended Barrow Restoration Advisory Board Meeting. Tamar Stephens
3/17/2011 Meeting or Teleconference Held Contaminated sites staff Tamar Stephens attended Barrow Restoration Advisory Board meeting. Tamar Stephens
10/13/2011 Meeting or Teleconference Held Contaminated sites staff Tamar Stephens attended Barrow Restoration Advisory Board meeting. Tamar Stephens
10/13/2011 Meeting or Teleconference Held Contaminated sites staff Tamar Stephens attended Barrow Restoration Advisory Board meeting. Tamar Stephens
11/10/2011 Site Added to Database A new site has been added to the database Mitzi Read
11/14/2011 Update or Other Action The Kogru River / FUDS site has been separated into three sites on the contaminated sites database to allow separate management and closure of the areas. These areas are named as follows: "Kogru River / FUDS Main Cantonment Area;" "Kogru River / FUDS Western Landfill Cell 4;" and "Kogru River / FUDS Western Landfill Cells 1, 2, and 3." Please see the database actions for the Main Cantonment Area for older actions related to the Western Landfill. Tamar Stephens
11/21/2011 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 79213 name: Western Landfill Cell 4. This ranking is based on conditions at the site prior to the cleanup. This duplicates an initial ranking that was done for the Western Landfill Cell 4 as a source area prior to separating the Kogru River FUDS site into three separate sites. Tamar Stephens
12/9/2011 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 79213 Western Landfill Cell 4. Tamar Stephens
12/13/2011 Cleanup Complete Determination Issued Cleanup Complete Determination was made for the Western Landfill Cell 4 following completion of a removal action in 2009. Environmental Program Manager John Halverson signed the "Declaration of Project Closure Decision for Formerly Used Defense Site HTRW Project Kogru River DEW Line Site West Landfill Cell 4 North Slope Borough, Alaska (F10AK002204)" on 9/24/2010. The Declaration was signed by Colonel Reinhard w. Koenig, District Commander, US Corps of Engineers, on 9/23/2010. This determination applies only to Cell 4 of the Western Landfill. This determination was previously recorded on this database as an "update" action because it applied to one source area at the Kogru River former DEW Line station. The Kogru River station has been subsequently separated into three sites on the database to allow documentation of closure of the source areas where cleanup is complete. Tamar Stephens
12/13/2011 Institutional Control Record Removed Institutional Controls have been removed. Tamar Stephens

Contaminant Information

Name Level Description Media Comments
PCBs - Total < Method 2 Most Stringent Soil
DRO Other Soil
Lead - Total < Method 2 Most Stringent Soil

Control Type

Type Details
No ICs Required

Requirements

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

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