| Action Date |
Action |
Description |
DEC Staff |
| 9/4/1995 |
Update or Other Action |
(Old R:Base Action Code = RI - Remedial Investigation). The action date used is the date of the Air Force Relative Risk Evaluation Worksheet, which indicates the site is in the RI phase. |
Former Staff |
| 2/12/1997 |
Site Added to Database |
Site added by Shannon and Wilson. See also Reckey 198331X933702. |
S&W |
| 11/19/1999 |
Update or Other Action |
See Cape Lisburne LRRS (All Sites) for facility-wide information. Reckey 198331X933702. |
Tamar Stephens |
| 1/26/2001 |
Site Number Identifier Changed |
Changed the Region from 36 to 31 to correctly reflect location. |
Former Staff |
| 11/5/2002 |
Proposed Plan |
Proposed Plan approved by Section Manager Jennifer Roberts on this date. See Cape Lisburne (All Sites) for more information. |
Tamar Stephens |
| 1/6/2003 |
Update or Other Action |
Received "final" Decision Document for review. Air Force and DEC plan to finalize and sign by January 31, 2003. Remediation of soil planned for summer 2003. This site originally included two lower camp transformer buildings, and was expanded to include the Lower Camp Tramway Transformer Building. Buildings were demolished summer 2002. |
Tamar Stephens |
| 9/18/2003 |
Record of Decision |
Record of decision signed by Air Force on 9/18/03. DEC section manager Jennifer Roberts signed on May 16, 2003. PCB contaminated soil wll be excavated to cleanup level of 1 mg/kg and shipped off site for disposal. |
Tamar Stephens |
| 8/13/2004 |
Cleanup Plan Approved |
Stephens reviewed and approved a work plan to excavate PCB contaminated soil and to ship soil off site to a permitted facility for disposal. |
Tamar Stephens |
| 2/4/2005 |
GIS Position Updated |
Updated position using coarse census bureau "places of interest" dataset. Moved from Point Hope to general Cape Lisburne location. |
Torsten Ernst |
| 6/16/2005 |
Site Characterization Workplan Approved |
T. Stephens reviewed and sent approval letter for a remedial investigation work plan. This work plan describes sampling that is planned during July, 2005 to delineate the extent of contamination remaining at LF001 (Landfill / Waste Accumulation Area), SS009 (Lower Camp Transformer Buildings and OT003 (White Alice Site). Cleanup was performed at these sites during summer of 2004, but contamination was more extensive that anticipated. At SS009, soil sampling will delineate remaining PCBs in soil. |
Tamar Stephens |
| 7/6/2005 |
Update or Other Action |
Approved 2005 Remedial Investigation Work Plan for LF001, SS009, and OT003 for additional sampling to fill data gaps. |
Tamar Stephens |
| 10/31/2005 |
Update or Other Action |
Staff reviewed and sent comments on Clean Sweep Remedial Action Report, which describes work completed during summer 2004 at LF001, OT003 (White Alice Site), SS008 and SS009 (Upper and Lower Camp Transformer Bldgs). Letter requested additional information to verify sampling data and to verify proper disposal of wastes, and information on dimensions of excavations, and actual confirmation sample locations. Work completed at this site consisted of removal of 45 cubic yards of PCB soil from Lower Tramway Building and 51 cubic yards of PCB soil at the two Transformer Buildings. Cionfirmation samples show that additional PCB soil will need to be excavated from both areas. |
Tamar Stephens |
| 12/27/2005 |
Update or Other Action |
Approved 2005 Remedial Investigation Work Plan for LF001, SS009, and OT003 for additional sampling to fill data gaps. |
Tamar Stephens |
| 5/25/2006 |
Update or Other Action |
Reviewed draft Remedial Investigation Report for LF001, SS009, and OT003 for the Cape Lisburne Long Range Radar Station. Received report on April 20, 2006. This report presents the results of sampling performed in 2005 to delineate the extent of remaining soil contamination. |
Tamar Stephens |
| 9/7/2006 |
Update or Other Action |
Approved the final Remedial Investigation Report for LF001, SS009, and OT003. At the Tramway Transformer Building, the report estimates that six cubic yards of PCB-contaminated soil remains above the 1 mg/kg cleanup level, with concentrations ranging from 2.94 mg/kg to 46.4 mg/kg. At the Two Transformer Buildings, the report estimates that four cubic yards of surface soil remain that exceed the cleanup level, with concentrations ranging from 1.63 to 5.10 mg/kg, and 2 cubic yards of subsurface soil remain that exceed the cleanup level with concentrations up to 130 mg/kg. |
Tamar Stephens |
| 2/21/2007 |
Meeting or Teleconference Held |
DEC participated in a Triad systematic planning meeting with the Air Force to develop an approach to investigate LF001 and SS09 (Lower Camp Transformer Buildings and Lower Camp Tramway Transformer Building Site). This planning session focused on identifying the remaining concerns at these two sites, and developing a sampling strategy to delineate and quantify the remaining soil that requires cleanup. |
Tamar Stephens |
| 4/2/2007 |
Exposure Tracking Model Ranking |
Intitial Ranking Complete for Source Area: 78186 (Autogenerated Action) |
|
| 3/8/2008 |
CERCLA RI Plan Approved |
DEC staff reviewed and sent approval letter for draft Cape Lisburne 2008 Remedial Investigation Quality Program Plan (work plan) for LF001 and SS009. Purpose of plan is to do additional sampling to characterize the extent of remaining contamination at sites SS009 and LF001. |
Tamar Stephens |
| 7/18/2008 |
Update or Other Action |
DEC staff sent letter acknowledging receipt of Final Cape Lisburne 2008 Remedial Investigation Quality Program Plan for LF001 and SS009. DEC previously approved this work plan at the draft stage in a letter on 3/28/2008. |
Tamar Stephens |
| 5/18/2009 |
Document, Report, or Work plan Review - other |
DEC reviewed and sent comments on a draft report: 2008 Remedial Investigation and Erosion Control Activities, Sites LF001 and SS009. |
Tamar Stephens |
| 8/10/2009 |
CERCLA RI Report Approved |
DEC reviewed and sent an approval letter for a final report: 2008 Remedial Action Investigation and Erosion Control Activities, Sites LF001 and SS009 (June 2009). The report describes the results of investigation activities at the SS009 site during summer of 2008. Activities at the former transformer building consisted of soil sampling to support planning for completing cleanup of PCB-contaminated soil. The report estimates 28 cubic yards remain at the Lower Camp Transformer Buildings, and 40 cubic yards at the Lower Camp Tramway Transformer Building. |
Tamar Stephens |
| 3/31/2010 |
Document, Report, or Work plan Review - other |
DEC staff reviewed and sent comments on the Draft Work Plan - LF001 and SS009 Remedial Action, Cape Lisburne Long Range Radar Station, Alaska, 2010. |
Tamar Stephens |
| 4/21/2010 |
Update or Other Action |
DEC staff sent a letter approving a third party sampler waiver for three personnel from the Air Force 611th, Mr. Joseph Millhouse, Mr. Tim Plucinski, and Mr. D. Thomas Donley, to perform soil, sediment, and surface water sampling at the Cape Lisburne Long Range Radar Station during remedial action work at sites LF001 and SS009 from May through September, 2010. |
Tamar Stephens |
| 5/17/2010 |
CERCLA Remedial Design/Remedial Action Plan Approved |
DEC staff sent an approval letter for the Final Work Plan - LF001 and SS009 Remedial Action, Cape Lisburne Long Range Radar Station, Alaska, May 2010. This work plan describes how the Air Force plans to complete the clean up polychlorinated biphenyl (PCB) and petroleum contaminated soil at two areas at the Cape Lisburne Long Range Radar Station, and do additional inspection and sampling at another area. Work is planned for summer of 2010 and includes the following tasks at the Lower Camp Transformer Buildings and Lower Camp Tramway Transformer Building site (SS009):
• Excavation of an estimated 28 yds3 of PCB contaminated soil from the Lower Camp Tramway Transformer Building and 40 yds3 of PCB contaminated soil from the Lower Camp Transformer Buildings, and disposal in a permitted facility;
• Confirmation sampling of excavated areas;
• Site restoration to include backfilling, contouring, and revegetating. |
Tamar Stephens |
| 5/13/2011 |
Document, Report, or Work plan Review - other |
DEC staff reviewed the Draft Report – LF001 and SS009 Remedial Action, Cape Lisburne Long Range Radar Station, Alaska -- This report describes environmental cleanup and site restoration performed at two sites, LF001 and SS009, at the Cape Lisburne Long Range Radar Station during 2010. LF001 includes a former drum disposal area referred to as Waste Accumulation Area 2 (WAA 2), and an inactive landfill (Old Dump No. 1). SS009 consists of the Lower Camp Transformer Buildings and Lower Camp Tramway Transformer Building. |
Tamar Stephens |
| 9/21/2011 |
Update or Other Action |
Environmental Tracking Model was updated based on information in the Final Report – LF001 and SS009 Remedial Action, Cape Lisburne Long Range Radar Station, Alaska (July, 2011). All exposure pathways are now either incomplete or de minimis exposure. |
Tamar Stephens |
| 9/29/2011 |
CERCLA Remedial Action Completion Report |
DEC staff sent approval letter for Final Report – LF001 and SS009 Remedial Action, Cape Lisburne Long Range Radar Station, Alaska (July, 2011). The report describes environmental cleanup and site restoration performed at two sites, LF001 and SS009, at the Cape Lisburne Long Range Radar Station during 2010. SS009 consists of the two Lower Camp Transformer Buildings and the Lower Camp Tramway Transformer Building. In 2010, a total of 118 cubic yards of PCB contaminated soil was excavated and disposed off site at Arlington, Oregon. Confirmation samples showed that the excavations met the cleanup level of 1 mg/kg for PCBs. The excavated areas were backfilled with clean gravel and graded. Based on the information in this report, DEC has determined that all of the cleanup requirements in the Decision Document for SS009 (May, 2003) have been met. |
Tamar Stephens |
| 9/29/2011 |
Cleanup Complete Determination Issued |
DEC staff sent a letter to the Air Force confirming the "cleanup complete" determination. |
Tamar Stephens |
