| Action Date |
Action |
Description |
DEC Staff |
| 8/24/1987 |
Update or Other Action |
(Old R:Base Action Code = SI - Site Investigation). Woodward-Clyde Consultants prepared Technical Support Document of Record of Decision. Concluded that no evidence of contamination was found therefore no further action at site required. |
Former Staff |
| 9/26/1988 |
Update or Other Action |
(Old R:Base Action Code = DD - Decision Document (CERCLIS)). Staff reviewed Technical Support Document of Record of Decision prepared by Woodward-Clyde and agreed that no further action at site under IRP is warranted. |
Rich Cormack |
| 4/18/1990 |
Site Ranked Using the AHRM |
Initial ranking. |
Former Staff |
| 5/9/1990 |
Site Number Identifier Changed |
Old Reckey 1983310133702. Changed to reflect correct region and workplan. |
Former Staff |
| 8/12/1991 |
Update or Other Action |
(Old R:Base Action Code = RECN - Site Reconnaissance (CS)). Staff performed site inspection. |
Cindy Thomas |
| 1/28/1992 |
Update or Other Action |
(Old R:Base Action Code = MS - Monitoring/Sampling). Staff requested sampling of drinking water system for heavy metals, PCBs and aromatic organics. Uptake area in Creek bed 20 feet deep adjacent to LRRS structures, fuel storage and solid waste sites. Sample results were negative, however sampling point was storage tank not creek sediments. |
Scott Home |
| 11/9/1992 |
Site Ranked Using the AHRM |
Reranked. |
Former Staff |
| 11/17/1992 |
Update or Other Action |
(Old R:Base Action Code = CORR - Correspondence (General)). Sent letter to Air Force requesting RI/FS or Site Investigation to address spill discovered near runway in August. |
Laura Noland |
| 2/3/1993 |
Site Ranked Using the AHRM |
New ranking = 82 based on PCB contamination. |
Former Staff |
| 2/3/1993 |
Update or Other Action |
(Old R:Base Action Code = SI - Site Investigation). ADEC conducted review of Draft Site investigation conducted to fulfill EPA's requirement for Federal Docket sites and HRS ranking. PCB at 15 ppm at Waste Accumulation Area Number 2 and carbon disulfide at 0.4 ug/l in water gallery. |
Former Staff |
| 3/16/1993 |
Update or Other Action |
(Old R:Base Action Code = CORR - Correspondence (General)). Requested status of funding for SI work. |
Former Staff |
| 3/31/1993 |
Update or Other Action |
(Old R:Base Action Code = CORR - Correspondence (General)). Air Force informed ADEC that funding is available for RI/FS work for 1993. |
Former Staff |
| 4/20/1993 |
Interim Removal Action Approved |
(Old R:Base Action Code = AWS - Alternative Water Supply (General)). EPA requested alternative source of drinking water be provided for site workers due to 0.4 mg/l carbon disulfide detected in water gallery sample. |
Former Staff |
| 7/9/1993 |
Update or Other Action |
(Old R:Base Action Code = RI - Remedial Investigation). ADEC received Draft Sampling and Analysis Plan and Draft Workplan for Remedial Investigations/Feasibility studies at Air Force Radar Stations from Air Force. |
Laura Noland |
| 7/27/1993 |
Meeting or Teleconference Held |
ADEC met with Air Force and their contractor, ICF Technology, Inc., to decide which sites will be addressed through the RI/FS project and which will be handled as environmental compliance problems. ADEC granted verbal approval to proceed with workplan as described and amended at meeting. |
Laura Noland |
| 8/2/1993 |
Site Characterization Workplan Approved |
(Old R:Base Action Code = RI - Remedial Investigation). Staff completed review of all work plan documents associated with planned RI/FS activities to be August 1993. |
Laura Noland |
| 8/5/1993 |
Update or Other Action |
(Old R:Base Action Code = RI - Remedial Investigation). Received Draft Final Sampling and Analysis Plan for Remedial Investigations/Feasibility studies at Air Force Radar Stations from Air Force. Work to be performed by ICF Technology, Inc. |
Laura Noland |
| 8/9/1993 |
Site Characterization Report Approved |
(Old R:Base Action Code = SI - Site Investigation). ADEC staff received Site Investigation Final Reports which were prepared for EPA HRS ranking. |
Laura Noland |
| 8/13/1993 |
Update or Other Action |
(Old R:Base Action Code = CORR - Correspondence (General)). Staff sent comments concerning RI/FS work plan and approving workplan. Also requested meeting with Air Force to discuss and resolve environmental compliance issues at the facilities. |
Laura Noland |
| 9/9/1993 |
Meeting or Teleconference Held |
Conducted meeting at NRO offices with Air Force and contractor Martin Marietta to discuss environmental compliance issues which may be contributing or causing contaminated sites at the Dewline Stations. Discussions centered on identifying problem areas and devising solutions. Issues include landfills, miscellaneous solid waste, abandoned drums, tanks and pipelines and abandoned transformers. |
Laura Noland |
| 11/1/1993 |
Update or Other Action |
(Old R:Base Action Code = CORR - Correspondence (General)). Staff received letter from Air Force addressing compliance and contaminated site issues at seven Dewline Stations and Cape Lisburne LRRS. Issues concern solid waste, wastewater, oil spill and contaminated sites programs. Letter copied to all programs for follow-up. |
Laura Noland |
| 12/16/1993 |
Update or Other Action |
(Old R:Base Action Code = CORR - Correspondence (General)). Air Force informed ADEC that spill area at runway would be considered as IRP source site during a site investigation scheduled to occur as soon as funding and weather permits. |
Former Staff |
| 1/14/1994 |
Update or Other Action |
(Old R:Base Action Code = PUBP - Public Participation)). Staff reviewed and provided comments for Draft Final Community Relations Plan for Barter Island, Bullen Point, Oliktok, Point Lonely, Point Barrow, Wainwright, Point Lay and Cape Lisburne dated 12/17/93 and conducted by the Air Force. |
Laura Noland |
| 1/25/1994 |
Site Added to Database |
PCBs, petroleum products and halogenated/non-halogenated solvents. |
Former Staff |
| 3/1/1994 |
Meeting or Teleconference Held |
Met with Air Force and contractor ICF Kaiser to discuss current status of RI/FS, sampling results and risk assessment assumptions. Primary contaminant is DRO in soil and water. |
Laura Noland |
| 3/1/1994 |
Site Characterization Workplan Approved |
(Old R:Base Action Code = RI - Remedial Investigation). Staff received Final Sampling and Analysis Plan for Remedial Investigations/Feasibility Studies dated 12/17/93 and Final Work Plan for Remedial Studies dated 1/19/94 for all Air Force Dewline Stations and Cape Lisburne LRRS. |
Laura Noland |
| 5/27/1994 |
Update or Other Action |
(Old R:Base Action Code = RPL2 - Site Information Request Letter). Staff sent PRP-CS Database Notification Letter to RP requesting update and more environmental information concerning contaminated site. |
Jeff Peterson |
| 9/16/1994 |
Interim Removal Action Approved |
Air Force completed the first phase of construction for an interim action designed to capture and treat the fuel contaminated water before it reaches surface water and the Arctic Ocean. Operation of interceptor trench and wastewater treatment will begin spring 1995. |
Laura Noland |
| 9/16/1994 |
Update or Other Action |
(Old R:Base Action Code = RI - Remedial Investigation). Air Force completed additional remedial investigation sampling for PCBs since initial RI report indicates extensive PCB contamination at the facility. |
Laura Noland |
| 12/14/1994 |
Interim Removal Action Approved |
611th CES hand delivered "Addendum to Work Plan and Sampling Analysis Plan for Interim Remedial Actions" dated 12/9/94. Document expands scope of work at Landfill, Waste Accumulation Area (LF01) and PCB contamination investigation. ADEC completed review. Approved work plan with understanding that bioremediation directed towards TPH soils and does not address PCB and VOC contaminated soils. |
Laura Noland |
| 12/15/1994 |
Update or Other Action |
(Old R:Base Action Code = RAPR - Remedial Action Plan Review (CS)). Air Force submitted "Addendum to Work Plan and Sampling and Analysis Plan for Interim Remedial Action" dated 12/9/94 by ICF Technology Inc. contains PCB sampling plans and interim remedial action plans at seep. |
Laura Noland |
| 9/4/1995 |
Update or Other Action |
Site updated by Shannon and Wilson, based on the Air Force Relative Risk Evaluation Worksheets dated 9/4/95. Individual IRP sites have been assigned separate Reckey numbers. See Comments field on the Problem/Comments Tab for a list of Reckey numbers. |
S&W |
| 2/15/1996 |
Interim Removal Action Approved |
Received Interim Remedial Action Report Cape Lisburne Radar Installation. |
Kalu Kalu |
| 2/15/1996 |
Update or Other Action |
Received "Final Risk Assessment Report, Cape Lisburne Radar Installation." |
Kalu Kalu |
| 2/15/1996 |
Update or Other Action |
(Old R:Base Action Code = RI - Remedial Investigation). Received "Final Remedial Investigation / Feasibility Study", Volumes 1 and 2. |
Kalu Kalu |
| 8/1/1996 |
Update or Other Action |
Comments on the U.S. Air Force, 611th Air Support Group, Civil Engineering Squadron, Final Risk Assessment Report, Cape Lisburne Radar Installation, Alaska, received 8/5/1996. |
Kalu Kalu |
| 9/20/1996 |
Update or Other Action |
(Old R:Base Action Code = RI - Remedial Investigation). Draft, Analytical Data Summary for Remedial Investigations at Air Force Radar Stations, document dated September 2, 1994. |
Kalu Kalu |
| 3/24/1997 |
Update or Other Action |
Site updated by Shannon and Wilson, based on the Air Force Relative Risk Evaluation Worksheets dated 9/4/95. Individual IRP sites have been assigned separate Reckey numbers. See Comments field on the Problem/Comments Tab for a list of Reckey numbers. |
S&W |
| 3/4/1998 |
Meeting or Teleconference Held |
RAB meeting in Point Hope. Key topics were discussion of cleanup levels for PCBs and remedial alternatives for PCB-contaminated soil. |
Tamar Stephens |
| 3/30/1998 |
Update or Other Action |
Reviewed Feasibility Study for PCB soil treatment alternatives. Approximately 2000 yards of soil affected. |
Tamar Stephens |
| 5/13/1998 |
Update or Other Action |
Held ADEC peer review on alternatives for PCB soil. Air Force preferred alternative is to create on-site containment cell. Peer review discussed technical and regulatory evaluation; does not support containment cell. |
Tamar Stephens |
| 5/18/1998 |
Meeting or Teleconference Held |
Met with Air Force to discuss peer review results. Also discussed stockpiles of excavated soil: need to monitor and maintain. Air Force and ADEC will work together to develop site-wide strategy for cleanup. |
Tamar Stephens |
| 6/2/1998 |
Update or Other Action |
Completed review, sent review comments on document: "Treatment Alternatives for PCB Contaminated Soil." |
Tamar Stephens |
| 7/28/1998 |
Update or Other Action |
Review of 1997 Interim Remedial Action Report revealed that excavated drums were reburied on-site. Consultation with Solid Waste program resulted in determination that this was violation of solid waste regulations. Drums will need to be removed and disposed of in a permitted landfill. Solid Waste program will allow resolution through contaminated sites program management of this site. |
Tamar Stephens |
| 4/9/1999 |
Update or Other Action |
Received Final Interim Remedial Action Report. |
Tamar Stephens |
| 4/23/1999 |
Meeting or Teleconference Held |
Scoping meeting between ADEC and Air Force project managers. Discussed overall strategy for determining cleanup levels for petroleum and PCBs. Air Force is proposing residential standards at lower camp sites and industrial standards for subsurface soil at upper camp sites. Air Force reported that Point Hope RAB TAPP grant application has been approved to have a contractor review and interpret documents for them. |
Tamar Stephens |
| 8/12/1999 |
Meeting or Teleconference Held |
RAB meeting in Point Hope. |
Tamar Stephens |
| 8/12/1999 |
Update or Other Action |
Site visit with Air Force and 4 Point Hope community members. |
Tamar Stephens |
| 2/3/2000 |
Update or Other Action |
Review of draft Proposed Plan for Cleanup - Cape Lisburne Long Range Radar Station. Action added by Sarah Riddle. |
Tamar Stephens |
| 2/4/2000 |
Update or Other Action |
Review of draft Evaluation of Beach Erosion Along the Coastline of Site LF01, Cape Lisburne Long Range Radar Station, Alaska. Action added by Sarah Riddle. |
Tamar Stephens |
| 2/15/2000 |
Meeting or Teleconference Held |
RAB meeting in Point Hope. |
Tamar Stephens |
| 4/18/2000 |
Meeting or Teleconference Held |
RAB meeting in Point Hope. |
Tamar Stephens |
| 6/8/2000 |
Update or Other Action |
Review of Cape Lisburne Long Range Radar Site - Proposed Plan for Cleanup. Comments made and review letter sent. Action added by Sarah Riddle. |
Tamar Stephens |
| 6/9/2000 |
Update or Other Action |
Review of draft Remediation Systems Report for Cape Lisburne LRRS. Action added by Sarah Riddle. |
Tamar Stephens |
| 1/24/2001 |
Site Number Identifier Changed |
Changed the Region from 36 to 31 to correctly reflect location. |
Former Staff |
| 3/7/2001 |
Meeting or Teleconference Held |
RAB meeting in Point Hope. |
Tamar Stephens |
| 5/22/2001 |
Update or Other Action |
Review of February 2001 Draft Proposed Plan for Cleanup, Cape Lisburne Long Range Radar Site. Action added by Sarah Riddle. |
Tamar Stephens |
| 7/18/2001 |
Update or Other Action |
Review of draft Decision Document for Landfill / Waste Accumulation Area (LF001). Action added by Sarah Riddle. |
Tamar Stephens |
| 7/30/2001 |
Update or Other Action |
Review of Draft Decision Document for Spill/Leak #2 (ST005) at the Cape Lisburne Long Range Radar. Action added by Sarah Riddle. |
Tamar Stephens |
| 8/15/2001 |
Meeting or Teleconference Held |
RAB meeting in Point Hope. |
Tamar Stephens |
| 3/20/2002 |
Update or Other Action |
Review of draft report titled A Compilation of PCB Sampling Results for Site LF01, Cape Lisburne Long Range Radar Station, Alaska. Action added by Sarah Riddle. |
Tamar Stephens |
| 3/27/2002 |
Meeting or Teleconference Held |
RAB meeting in Point Hope. |
Tamar Stephens |
| 7/26/2002 |
Update or Other Action |
Review of Engineering Evaluation/Cost Analysis, revised draft, Cape Lisburne LRRS, Alaska. Identified off-site treatment/disposal as preferred remedy for PCB and petroleum-contaminated soil. DEC's review accepts EE/CA except for risk assessment update. In follow-up teleconference with Air Force, agreed that risk assessment update is too complex for this document; Air Force agrees to do risk evaluation post-cleanup. Major uncertainty is whether cleanup will be protective of marine environment if future erosion of residuals from LF001 occurs. |
Tamar Stephens |
| 11/5/2002 |
Proposed Plan |
Tamar Stephens briefed Section Manager Jennifer Roberts on Proposed Plan. Roberts approved Proposed Plan. Air Force informed of approval by e-mail on 11/5/02, and in follow-up letter on 12/4/02. Public comment period from 11/18/02 - 12/20/02. |
Tamar Stephens |
| 1/6/2003 |
Update or Other Action |
Received "final" Decision Document on all 9 IRP sites for final review. Plan is to finalize and obtain DEC and Air Force signatures by 1/31/03. Current site status: Clean Sweep program demolished lower upper camp buildings in summer 2001, lower camp buildings summer 2002. Remediation of contamination scheduled for summer 2003. |
Tamar Stephens |
| 1/27/2003 |
Meeting or Teleconference Held |
Stephens met with Air Force and contractor in Anchorage to work on response to comments and revisions to decision documents. |
Tamar Stephens |
| 7/31/2003 |
Meeting or Teleconference Held |
Tamar Stephens attended Point Hope RAB meeting. |
Tamar Stephens |
| 2/12/2004 |
Meeting or Teleconference Held |
Tamar Stephens attended RAB workshop during Alaska Forum on the Environment. |
Tamar Stephens |
| 4/7/2004 |
Meeting or Teleconference Held |
Tamar Stephens attended Point Hope RAB meeting. |
Tamar Stephens |
| 7/31/2004 |
Meeting or Teleconference Held |
Stephens attended Point Hope RAB meeting. |
Tamar Stephens |
| 6/16/2008 |
Exposure Tracking Model On Hold |
This is a facility-wide record. Eash individual site identified within the facility has a separate entry on the data base and is separately ranked on the ETM. |
Tamar Stephens |
| 10/3/2014 |
Update or Other Action |
Project oversight changed from Shephard to Debenham. |
John Carnahan |
| 10/27/2014 |
Document, Report, or Work plan Review - other |
Review of multiple PACAF installations, Alaska, Final Preliminary Assessment/Site Inspection for Cape Lisburne LRRS (April 2013). Provided comments on the report conclusions and stated that DEC does not agree with conclusions in the PA/SI recommending no further action at the CS544 or OT617 sites. The sampling programs were insufficient and not comprehensive. TCE was detected in an area at 5 times the screening level that was not specifically targeting TCE, indicating that greater concentrations are likely present. Further, all potential sources at site OT617 were not targeted. |
John Carnahan |
| 2/5/2015 |
Document, Report, or Work plan Review - other |
Approved final Surface Water Monitoring and Landfill Inspection Report. Surface water samples were collected at Waste Accumulation Area 2 and Dump Number 1. No surface water was present at Waste Accumulation Area 1. All results were either below cleanup levels or non-detect. |
Melody Debenham |
| 4/30/2015 |
Document, Report, or Work plan Review - other |
Approved supplemental work plan to collect surface water samples as part of the long term monitoring at LF001. |
Melody Debenham |
| 7/22/2015 |
Document, Report, or Work plan Review - other |
Approved Final Work Plan for Site Characterization Investigations for Multiple Sites including Cape Lisburne. Work at Cape Lisburne includes soil sampling at CS544, the fueling station adjacent to Building 515 (the former power plant) and site OT617, the former underground storage tank at the water pump house. |
Melody Debenham |
| 8/6/2015 |
Update or Other Action |
Site characterization work at CS544 (fueling station) and OT617 (pump house UST) was scheduled for the 2015 field season but has been delayed to 2016 due to weather delays preventing access to the site. |
Melody Debenham |
| 9/17/2015 |
Meeting or Teleconference Held |
Attended Barrow Restoration Advisory Board Meeting and provided updates on Cape Lisburne Site. |
Melody Debenham |
| 1/25/2016 |
Document, Report, or Work plan Review - other |
Approved final Surface Water Monitoring and Landfill Inspection Report for LF001 with 3 sub areas: Waste Accumulation Area 1, Waste Accumulation Area 2, and Dump No. 1. All surface water results were below cleanup levels at all 3 areas of concern. |
Melody Debenham |
| 2/28/2017 |
Update or Other Action |
Project manager change from Debenham to Carnahan. |
John Carnahan |
| 5/3/2022 |
Document, Report, or Work plan Review - other |
Review completed of 2021 LTM Report for Cape Lisburne LRRS Sites CS544 and LF001. Report details the annual institutional control/land use control inspection activities for CS544 and LF001. Exposed liner was observed at both CS544 and LF001. Signage was noted to be generally good condition across both sites. No maintenance was performed during this field effort. |
Kelly Walker |
| 9/22/2022 |
Long Term Monitoring Workplan or Report Review |
2021 Long-Term Management Report for Cape Lisburne LRRS Sites CS544 and LF001 approved. Report detailed 2021 annual inspection of the institutional control/land use controls at CS544 and LF001. |
Kelly Walker |
| 6/29/2023 |
Long Term Monitoring Workplan or Report Review |
2022 Cape Lisburne LRRS, CS544 and LF001 sites Long-Term Monitoring Report reviewed and approved. CS544 gravel cap shows some surface staining and the liner is exposed in a small location. All signs were observed to be in good condition. LF001 gravel cap is observed to be thinning in some areas and there are some areas of exposed liner observed. Signage was observed to be in good condition. |
Kelly Walker |
| 7/26/2023 |
Site Characterization Workplan Approved |
DEC reviewed and approved the Uniform Federal Policy-Quality Assurance Project Plan (UFP-QAPP), for Cape Lisburne Sites CS544 and LF001. This document details the updated project plan for the long-term monitoring and management of institutional controls (ICs) in place at CS544 and LF001. In addition to annual site visits to observe and inspect the status of ICs, up to four active zone water monitoring points will be installed and sampled during the 2023 field season. This sampling is intended to fulfill the active zone water monitoring requirements set forth in the 2014 Record of Decision for LF001. |
Kelly Walker |
| 10/12/2023 |
CERCLA ROD Periodic Review |
DEC completed review of the 2023 Five-Year Review for Sites LF001 and CS544. This is the third five-year review for LF001 and the first five-year review for CS544. The purpose of this review is to evaluate the implementation and performance of the selected remedies for LF001 and CS544 and to determine if each selected remedy is functioning and remains protective of human health and the environment. For LF001, the remedy was found to be short-term protective due to exposed liner, scattered metal debris and ponding on the landfill cap. Cap maintenance and active zone water monitoring is required in order to maintain the selected remedy at LF001. The protectiveness determination was found to be short term protective for CS544. For the remedy to be fully functioning, a NAUL must be filed. |
Kelly Walker |
| 9/26/2024 |
Long Term Monitoring Workplan or Report Review |
DEC reviewed and approved the "2023 Long-Term Management Report" for Cape Lisburne LRRS sites CS544 and LF001. This report detailed the 2023 inspection activities of the institutional control/land use controls (IC/LUC) in place at CS544 and LF001. In addition to the annual long-term management inspection, three active zone water samples were collected downgradient of LF001. Inspection results indicate site conditions at CS544 and LF001 are largely unchanged. Results from the active zone water sampling indicate trichloroethene (TCE) is present above DEC Table C Groundwater Cleanup Levels. These results indicate possible transport of contaminants outside the landfill margins. |
Kelly Walker |
| 9/26/2024 |
Document, Report, or Work plan Review - other |
DEC reviewed and approved the "Landfill Cap Repair Assessment Technical Memorandum" for the Cape Lisburne LRRS sites. This document details the inspection of the LF001 landfill cap and the soil cover at CS544. This memo also documents the cap and cover condition and depth of the LF001 cap. Visual inspection of the LF001 cap indicated it was in moderate condition with varying degrees of revegetation occurring. The depth evaluation of LF001 indicated the majority of the cap is less than 2 feet thick. Additional maintenance of the LF001 cap is recommended. Condition of the soil cover at CS544 was noted to be in general good condition and no maintenance was recommended. |
Kelly Walker |
| 3/24/2025 |
Long Term Monitoring Workplan or Report Review |
DEC reviewed and approved the "2024 Long-Term Management Report" for the Cape Lisburne LRRS sites CS544 and LF001. This report details the annual inspection of institutional control (IC)/land use controls (LUC) in place at CS544 and LF001 and the active zone water sampling conducted at LF001. One of the IC signs at CS544 was observed to be destroyed and will require replacement. Four active zone water samples were collected at LF001 and analyzed for DRO, RRO, TCE, carbon tetrachloride and benzene. All analytical results were less than DEC Table C Groundwater Cleanup Levels. |
Kelly Walker |
