Site Report: Point McIntyre / DERP

Site Name:	Point McIntyre / DERP
Address:	Point McIntyre, Prudhoe Bay, AK 99734
File Number:	300.38.012
Hazard ID:	1717
Status:	Active
Staff:	Sarah Durand, 9072628223 sarah.durand@alaska.gov
Latitude:	70.403333
Longitude:	-148.679167
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.

Site Chronology
IC / Closure Details
Documents
Associated Sites

Problems/Comments

Site investigations were conducted between 1985 and 1989 to document the condition of the buildings, the extent of debris in the site vicinity, and to collect soil, sediment, and surface water samples. A more detailed site investigation was conducted in 1998 to support a human health and ecological risk assessment. The most prevalent contaminants detected were diesel range organics (DRO) and residual range organics (RRO), with isolated detections of polychlorinated biphenyls (PCBs) and cadmium. Building demolition, debris removal, and excavation of contaminated soil was conducted in April - May, 2004 and in August 2004. The only remaining issue at the site appears to be the remains of an unpermitted landfill at the beach of the Beaufort Sea. Drums had been exposed at the beach by coastal erosion, and drum remains were widespread at the beach prior to the 2004 site restoration. While the exposed debris has been removed from the beach, buried debris and drums remain. The site was used from approximately 1957 to 1964 by the Air Force as part of the DEW Line system, but was transferred to the Department of the Navy in 1965 for use as a Naval Arctic Research Site. Former potential contaminants on site included petroleum, lead and other metals, and PCBs. The unpermitted landfill was removed and a new inland freeze-back landfill built in 2014. The new landfill will be monitored. The Final Record of Decision (ROD; 2012) for Pt. McIntyre includes a remedial action objective (RAO) to prevent erosion of solid waste and hazardous chemicals into the marine environment. During the FYR period, the Navy reported that drums, an exposed pipe, and what appeared to be a metal track pad were observed along the beach at the former eroding landfill. The Navy also acknowledged that the exposed debris appears to have daylighted as a result of shoreline erosion. ADEC submitted comments on the FYR indicating that we do not agree that the remedy is functioning as intended with regard to that RAO. However, the Protectiveness Statement in the FYR does not mention the observed solid waste at the eroding landfill, and the Navy asserted an overall FYR finding of protective, summarily dismissing ADEC’s concerns. ADEC does not agree with this protectiveness finding and asserts the Navy is out of compliance with the ROD. DEC sent a rescission request for the 2nd FYR on November 9, 2023.

Action Information

Action Date	Action	Description	DEC Staff
5/31/1992	Site Added to Database	Potential contaminants on site in unknown quantities; include POLs, lead and PCBs.	Former Staff
9/8/1992	Update or Other Action	(Old R:Base Action Code = RPL2 - Site Information Request Letter). ADEC staff sent PRP-CS Database Notification letter to RP requesting update and more environmental information concerning contaminated site. Jim Levine\COE called 10-5-92 and responded by returning updated DECRPTs.	Jeff Peterson
9/24/1993	Update or Other Action	McIntyre U.S. survey Number 404 T12N, R14E, latitude [approximately] 70 24'N, 148 40'W.	Marcus Ortelee
12/23/1994	Preliminary Assessment Approved	Received Draft Preliminary assessment (Appendix D) for Cape Sabine/Pt. McIntyre. Navy - responsible party, COE working for Navy. Funding is DERA.	Rielle Markey
1/4/1995	Site Ranked Using the AHRM	Initial ranking.	Jeff Peterson
3/18/1997	Update or Other Action	Site updated by Shannon and Wilson, based on the FUDS Site Summary dated 2/21/96.	S&W
5/4/2001	Update or Other Action	Draft Final Management Plan reviewed and commented on. Briefed Section Manager. The Management Plan is being used as the proposed plan.	Ann Farris
7/30/2001	Update or Other Action	Staff was sent a copy of a letter dated April 25, 1995 from EPA to Captain Walsh with the Navy stating Pt McIntyre is on the Federal Agency Haz Waste Compliance Docket and a no further remedial action planned decision has been entered in the docket.	Ann Farris
1/9/2004	Update or Other Action	Staff worked with the Navy Project Manager on the draft decision document for Point McIntyre. The Navy’s intent now is to try to remove all of the debris from the old dump site. The project manager believes the dump is not that deep and they will be able to remove the majority of buried debris. They will then grade the surface and reseed the area. The other ADEC concerns with the decision document should also be addressed. The next draft of the document will be submitted by January 19th.	Ann Farris
8/31/2004	Update or Other Action	DEC staff visited the site with the US Navy Project Manager on August 19, 2004. Navy contractors had removed the former structures and known contaminated soil at the site in March and April, and the resultant waste was hauled out on an ice road. August site activities included a final inspection for surface staining, removal of above-ground fuel piping, drums, and other debris, regrading of the beach after removal of exposed debris, and visual assessment of the unpermitted landfill by the beach. The final remedy for the landfill is pending resolution between DEC and the US Navy.	Colin Craven
9/27/2004	Update or Other Action	DEC staff sent a letter to the US Navy stating that the unpermitted landfill is being eroded by the Beaufort Sea and would require a long-term solution before the site could be closed.	Colin Craven
12/15/2004	Update or Other Action	DEC received copies of the draft Closure Report, Demolition and Environmental Cleanup from site activities conducted in 2004.	Colin Craven
1/14/2005	GIS Position Updated	Updated site location in database.	Colin Craven
1/28/2005	Update or Other Action	The Draft Closure Report has been reviewed and a briefing was provided to supervisors. Cleanup of documented soil contamination has been completed, however, the majority of an eroding landfill at the beach has not been addressed. This issue still requires resolution between DEC and the US Navy.	Colin Craven
2/17/2005	Update or Other Action	DEC comments on the Draft Closure Report were sent to the US Navy after review by DEC's Federal Facilities Section Manager.	Colin Craven
4/19/2005	Update or Other Action	Discussions with the US Navy have led to the tentative planning of a monitoring program for the eroding landfill at the beach. Because the 2004 site restoration removed exposed debris and covered eroded sections of the landfill, the monitoring plan would survey the landfill area in 2005 for subsequent yearly monitoring of its stability. Integral to the monitoring plan would be contingencies for removal of the landfill if its stability is compromised.	Colin Craven
5/17/2005	Site Characterization Report Approved	DEC received the revised “Final Closure Report” for Point McIntyre that incorporated comments and suggested revisions. The only remaining issue at the site is the unpermitted landfill by the beach, which is planning to undergo erosion monitoring starting in September 2005.	Colin Craven
8/3/2005	Long Term Monitoring Established	DEC reviewed the draft Monitoring Plan for the unpermitted landfill at the beach of the former Pt. McIntyre site, and accepted the plan with no suggested revisions. The Monitoring Plan proposes to perform an electromagnetic survey of the landfill, beach profile surveying, visual inspection of the site, and follow up monitoring through 2007.	Colin Craven
12/2/2005	Update or Other Action	DEC reviewed the draft of the Initial Monitoring Report submitted by Navy contractors. This report documents the first monitoring event for the on-site, unpermitted landfill. The Initial Monitoring Report includes extensive photographic and video documentation, survey transect data, an electromagnetic (EM) survey of the landfill and beach, and a complete property boundary survey. The report is thorough and should be helpful for discussions between DEC and the Navy in how to handle the landfill. The only requests for report revisions by DEC were for additional aerial photographs, submission of raw data files from the EM survey, and a few editorial changes.	Colin Craven
5/25/2006	Update or Other Action	The Navy sent DEC a revised draft of the Decision Document for Point McIntyre. A teleconference was held with the Navy to discuss the main concerns, such as the lack of a contingency plan or alternative to remove the unpermitted, eroding landfill based on the approved shoreline monitoring and inspection program. DEC will submit formal comments on these shortcomings.	Colin Craven
7/25/2006	Meeting or Teleconference Held	ADEC and the Navy discussed the draft decision document (DD) for Pt. McIntyre. The only matter not resolved from the comment and response on the draft DD was a long-term commitment by the Navy to monitor and maintain the eroding landfill, or to move its content to a permitted landfill. While the Navy is unsure currently how to fund landfill O&M or removal, it was agreed that the DD would be revised to include this long-term commitment. DEC acknowledges this difficulty, and concurs with the short-term monitoring activities carried out by the Navy, but requires a long-term commitment to landfill maintenance or removal before signing a DD for Pt. McIntyre.	Colin Craven
1/5/2007	Update or Other Action	DEC reviewed the draft of the 2006 Monitoring Report submitted by Navy contractors. This report documents the second monitoring event for the on-site, unpermitted landfill. The second Monitoring Report includes photographic documentation, survey transect data, and comparison of the 2005 and 2006 surface elevation. The report is thorough but does not address long-terms plans for the landfill. The monitoring event found that erosion at the surf appeared to be on the order of one foot between 2005 and 2006, resulting in some new drums being uncovered. Since 2000, surveys have shown a low annual shoreline change. The low recent values are interpreted as a periodic decline in a record that has exhibited incremental changes of up to 6 feet per year, and an average change of 3.2 feet per year. DEC review comments reinterated our goal for a long-term solution and holps of further dialogue with the Navy to formulate a mutually agreeable solution.	Lisa Maserjian
3/21/2007	Exposure Tracking Model Ranking	Initial ranking. Due to remoteness, most pathways were incomplete.	Lisa Maserjian
12/17/2007	Update or Other Action	Staff reviewed the Draft 2007 Monitoring Report for the beach erosion monitoring project that is ongoing at the site. The state issued a letter stating that it does not concur with the short term monitoring proposed by the Navy for this site and is pushing for a more long term plan to deal with the potential for eroding waste into the surface water. Plans are coming for a feasibility study to take place in the summer of 2008 to try to better understand the nature and extent of the contamination in the area of the landfill.	Jonathan Schick
2/15/2008	Update or Other Action	The state recieved the Final Point McIntyre 2007 Monitoring Report.	Jonathan Schick
2/2/2009	Update or Other Action	ADEC Staff recieved a copy of the Draft version of th Feasibility Study and 2008 Monitoring Report (Year 4) for the Former DEW Line Station. The FS explores options for dealing with the landfill that is near the eroding coast line.	Jonathan Schick
3/10/2009	Update or Other Action	ADEC submitted comments on the Draft Feasibility Study and the 2008 Monitoring Report in 2 separate letters addressed to the RPM at NAVFAC. The main concern of the State is the high levels of Pentachlorophenol that has been detected in the suprapermafrost groundwater. The Draft Feasibility Study does not address groundwater as a potential pathway for human receptors because of the presence of permafrost. Therefore, the State is pushing the Navy to remove the landill because of the potential ecological risk that is posed by the impacted groundwater leaching into the marine environment and the encroaching shoreline on the boundary of the landfill.	Jonathan Schick
5/22/2009	Update or Other Action	ADEC recieved a copy of the Final versions of the Feasiblity Study and 2008 Monitoring Report for the Former DEW Line Station.	Jonathan Schick
7/31/2009	Proposed Plan	ADEC staff recieved the draft version of the Porposed Plan in our office for review. The alternatives that were analyzed in the plan included complete removal and relocation of the landfill to an off-site location; relocation of the landfill at the airstrip on-site; and freezeback of the existing landfill in its present location; and No action was also analyzed as an alternative.	Jonathan Schick
7/31/2009	Update or Other Action	ADEC staff recieved the Draft Decision Document in our office for review and comment. The preferred alternative presented in the plan was to excavate and relocate the landfill and relocate it to the Airstrip and freeze it in place. There are some issues that need to be resolved in the Decision Document regarding clarification of land ownership and land transfer issues. A RAB meeting is scheduled for September 17, 2009 in Barrow to present the associated Proposed Plan to the public.	Jonathan Schick
9/14/2009	Proposed Plan	ADEC staff apptroved the finalization and distribution of the Proposed Plan for the Point McIntyre site which details the various remedial alternatives that were analyzed by the Navy. The preferred alternative in the Proposed Plan is to remove all material from the eroding landfill adjacent to the coast line and establish a new landfill on-site that will be located on the current air strip. The contents of the new landfill will be frozen in place through the burial of insulating materials to encourage the return of the permafrost layer into the landfill.	Jonathan Schick
9/17/2009	Meeting or Teleconference Held	ADEC staff travelled to Barrow, AK to attend a Restoration Advisory Board meeting to discuss the status of several sites including the Point McIntyre eroding landfill. The Proposed Plan was distributed at the meeting opening the comment period that will last approximately one month. The Proposed Plan for the site presented the prefered alternative of removing the contents and impacted soils from the existing eroding landfill and moving the contents to a new landfill that is planned to be located on the airstrip on-site. The new landfill will be covered with several feet of fil material including an insulation layer to encourage the return of permafrost to freezeback the new planned landfill.	Jonathan Schick
12/31/2009	Update or Other Action	ADEC staff submitted comments on the Draft Decision Document for Point McIntyre DEW Line Site. The Draft Decision DOcument relies on risk assessments and concludes that there is no unacceptable risk at the site, thus the on-site levels represent tthe cleanup levels. THe ADEC does not concur with this approach. ADEC is urging the Navy to consider Method 1 cleanup levels for the Arctic Zone to be used as the cleanup level for excavated soils from the eroding landfill.	Jonathan Schick
5/4/2010	Update or Other Action	ADEC issued a letter with comments on the Landfill and Stabilization Design document. The letter contained comments mostly pertaining to the analytical testing methods that were selected for the project. The letter retracts a previos letter written on April 30, 2010 approving the finalization of the document. At that time, the ADEC Project Manager was not aware that there was an additional section of the document that was submitted later via email. The ADEC's main concern is how the material will be separated and analyzed to determine where it should be disposed of and how it should be handled in the intermediate time frame.	Jonathan Schick
5/20/2010	Update or Other Action	ADEC staff submitted comments on the Point McIntyre Landfill Design Support Coastal Engineering Evaluation document. Most of the comments were questions for clarification and the issue of the 25% uncertainty factor with regards to the levels of shoreline erosion that may occur in the future as conditions may change.	Jonathan Schick
7/9/2010	Update or Other Action	ADEC recieved a draft version of the 2010 Project Specific Sampling and Analysis Plan for Point McIntyre Landfill, Alaska. This Work Plan/ Sampling and Analysis Plan is presented in the UFP QAPP format.	Jonathan Schick
7/26/2010	Update or Other Action	ADEC staff submitted comments on the 2010 Project Specific Sampling and Analysis Plan for the 2010 summer's field work to collect soil samples in an effort to confirm that the gravel pad soils are usable for backfill in the proposed landfill. The main concern was regarding the plan's call to relocate samples if visual impacts were noted.	Jonathan Schick
7/27/2010	Update or Other Action	ADEC recieved response to our comments on the Sampling and Analysis Plan for this summer's site inspection and soil sampling event. ADEC concurs with the responses including the addition of language to direct the field crew to carefully inspect any exposed barrel for containerized waste.	Jonathan Schick
8/25/2010	Update or Other Action	ADEC recieved the Draft Final version of the Sampling and Analysis Plan for borrow material for the landfill work proposed at Point McINtyre.	Jonathan Schick
8/30/2010	Update or Other Action	ADEC recieved an updated version of the Decision Docuemnt for landfill removal and placement into an on-site Freezeback landifll.	Jonathan Schick
8/30/2010	Update or Other Action	Contaminated Sites Staff recieved the draft final version of the Decision Document via email for the proposed remedial action to remove the eroding landfill from the coast of the Beaufort Sea and place its contents into a new freexeback landfill within the airstrip on the Navy's former DEW Line Site.	Jonathan Schick
9/1/2010	Update or Other Action	ADEC staff sent a letter to the Navy RPM detailing the concerns that were not addressed in the Draft Final version of the Sampling and Analysis Plan. Several of the agreed upon changes from the Draft were not made in the Draft Final docuemnt an this letter details the outstanding concerns. Unfortunately ADEC recieved this Draft Final version of the Sampling and ANalysis Plan after the field work was completed. 18 AAC 75.335 (b) requires that the responsible person shall submit a site characterization work plan to the department for approval before beginning site characterization work. In the future please provide enough time for ADEC to review any changes to the document and approve the finalization of the plan to be implemented in the field. There are still some unresolved issues from the first round of comments that need to be addressed.	Jonathan Schick
9/21/2010	Update or Other Action	Contaminated Sites Staff recieved a hard copy of the draft final version of the Decision Document for the proposed remedial action to remove the eroding landfill from the coast of the Beaufort Sea and place its contents into a new freexeback landfill within the airstrip on the Navy's former DEW Line Site.	Jonathan Schick
10/6/2010	Update or Other Action	Contaminated Site Staff submitted a letter and comment response form to the Navy in regards to the Draft Final Decicsion Document that was recieved in this office via email on August 30, 2010 and in hard copy on September 16, 2010. The State would like to see additional details included in this Decision Document as we are concerned that considerable challenges are involved in the removal and characterization of an abandoned landfill. It is not known what was disposed of in the landfill and therefore we need to be cautious during and after the remedial action to ensure that all of the hazardous materials have been removed from the unpermitted landfill and that what is placed in the new permitted landfill will not impact the surrounding environment. Adequate confirmation and characterization sampling will be necessary to ensure that the waste and soil removal from the unpermitted landfill achieves the remedial action objectives. It will also be important to limit the potential for contaminant migration to the sediments along the coastline during the remedial action.	Jonathan Schick
10/14/2010	Update or Other Action	ADEC Contaminated Sites Staff attended a Restoration Advisory Board Meeting in Barrow, AK to discuss the current advancements in the removal of the eroding landfill at Point McIntyre Former DEW Line Site. At the meeting we presented the tentative agreements between the Navy and our contaminated sites and solid waste programs to allow for the Navy to remove the contents of the eroding landfill and place the contents in a new freezeback landfill to be constructed in the footprint of the airstrip on-site. We have tentatively agreed to allowing for the disposal of the contents of the eroding landfill into the new landfill with the exception of any hazardous or TSCA regulated waste. Any waste not approved to be disposed of in the new landfill will be shipped off-site to an approved hazardous waste disposal facility.	Jonathan Schick
2/4/2011	Update or Other Action	ADEC recieved a Draft copy of the 2010 Inspection and Monitoring Report for the Point McIntyre DEW Line Site. THe report details the inspection of the eroding coastline and landfill to document any significant changes from previous monitoring events and the collection of background gravel pad samples to determine if the material is suitable for usa as backfill at the landfill that is slated to be removed adn the new freezeback landfill that is proposed for the site.	Jonathan Schick
2/15/2011	Update or Other Action	ADEC recieved the Draft Record of Decision for the Point McIntyre Former DEW Line Site. The Record of Decision documents the Navy's preferred alternative to remove the eroding landfil on the Beaufort coastline and move the contents inland to a new freezeback landfill. Te proposal allows for disposal of polluted soils in the new freezeback landfill so long as they are not TSCA regulated wastes or fail TCLP analysis that would deem the waste as hazardous. The Record of Decision is under review.	Jonathan Schick
2/25/2011	Update or Other Action	ADEC submitted a comment letter regarding the 2010 Inspection and Monitoring Report for the Former DEW Line Station at Point McIntyre. The report documented the shoreline erosion monitoring as well as some soil sample collection and analysis to determine if the material is suitable for use as backfill at the location of the landifll to be removed and the proposed freezeback landfill. All of the material sampled was deemed acceptable for usa as backfill with the exception of 4 small stained areas on the gravel pad that will be excavated and disposed of in the new freezeback landfill. Continuing erosion monitoring showed little change from the previous years' monitoring except in the area on the northwest end of the landfill at the low lying bluff which has exhibited more significant erosion from the wave action and ice scraping at the site.	Jonathan Schick
3/14/2011	Update or Other Action	COntaminated Sites Staff submitted a letter to the US Navy regarding our comments on the Draft Final Record of Decision for the eroding landfill at the site. Previously the document was going to be drafted as a state decision document, but that was changed to a CERCLA Record of Decision because of the unknown substances that may be present within the landfill. Many of the comments are concerning the ARARs and the comparison of the alternatives.	Jonathan Schick
4/21/2011	Update or Other Action	Contaminated SItes Staff recieved the Final Version of the 2010 Inspection and Monitoring Report.	Jonathan Schick
6/13/2011	Update or Other Action	Contaminated Sites Staff recieved a Draft Project-Specific Sampling and Analysis Plan for the summer 2011 field season. The plan details the sampling program for dioxins and furans in the soil and groundwater adjacent to the landfill site. Additional sediment sampling is going to be conducted and also shoreline erosion monitoring will be conducted.	Jonathan Schick
6/16/2011	Update or Other Action	Contaminated Sites Staff submitted a comment letter on the Draft Project Specific Sampling and Analysis Plan. Our main concerns were with the Sampling procedures for groundwater adn the analysis for GRO by AK 101. A Final Version should be submitted soon.	Jonathan Schick
6/23/2011	Update or Other Action	Contaminated Sites Staff recieved a Draft version of the Waste Management Plan and Environmental Protection Plan for 2011 Sampling and Landfill Inspection for our review.	Jonathan Schick
7/14/2011	Update or Other Action	Contamianted Sites Staff recieved a Draft Final version of the Point McIntyre Record of Decision for remedial action regarding the eroding landfill on-site. This document will require review from the Department of Law as well as our Department.	Jonathan Schick
7/18/2011	Update or Other Action	Contaminated Sites Staff submitted a comment letter to the US Navy Remedial Project Manager regarding the Draft Waste Management Plan and Environmental Protection Plan. The State was concerned with the plan to discharge the investigation derived waste water onto the tundra. A request was made to filter the water with a granular activated carbon filter prior to discharging the water to the surface soil.	Jonathan Schick
7/20/2011	Update or Other Action	Contaminated Sites Staff recieved the Draft Final Version of the 2011 Inspection and Monitoring Sampling and Analysis Plan. This plan had been revised from the Draft version and the comments made on the draft have been incorporated.	Jonathan Schick
7/21/2011	Update or Other Action	Contaminated Sites Staff recieved response to comments on the Draft Sampling and Analysis Plan for 2011 Inspection and Monitoring work at Point McIntyre. The responses to our comments were acceptable and the plan should be approved to be finalized.	Jonathan Schick
7/29/2011	Update or Other Action	Contaminated Sites Staff recieved a Draft Final vesion of the Landfill Stabilization Design document for our review. This document details the design for the proposed Freezeback landfill that is slated to be constructed to contain the material from the landfill on-site that is currently eroding into the Beaufort Sea.	Jonathan Schick
8/1/2011	Update or Other Action	Contaminated Sites Staff submitted a letter to the US Navy remedial project manager approving the Finalization of the 2011 Inspection and Monitoring Sampling and Analysis Plan to be implemented in the field.	Jonathan Schick
8/1/2011	Update or Other Action	Contaminated Sites Staff submitted a letter to the US Navy remedial project manager approving the Finalization of the 2011 Waste Management Plan and Environmental Protection Plan to be implemented in the field.	Jonathan Schick
8/4/2011	Update or Other Action	Contaminated Sites Staff submitted a comment letter to the Navy Remedial Project Manager with comments on the Draft Final Landfill and Stabilization Design document for the proposed ferezeback landfill at Point McIntyre. The main concern regarding the design were the temporary thermistor casings that may cause extra work in the future if they do not have easily accessible connections. Otherwise the design was acceptable.	Jonathan Schick
8/9/2011	Site Characterization Workplan Approved	Contamianted Sites Staff recieved the Final Version of the 2011 Project Specific Inspection and Sampling WOrk plans for the Former Distant Early Warning Line Station at Point McIntyre. The plan details the summer's filed work activities that include collecting groundwater and soil data from borings on the north side of the eroding landfill and also performing a visual inspection of the shoreline to make observations about the rate of erosion and to inspect for any potentially hazardous substances coming from the landfill.	Jonathan Schick
9/8/2011	Document, Report, or Work plan Review - other	Contaminated Sites Staff recieved a Draft version of the Land Use Control Plan and the Post Construction Monitoring Plan for the Planed freeezeback landfill that is slated to be constructed in the future. THe Plans are associated with and should follow the Record of Decision that is currently under review. The Land Use Contral Plan should address the restrrictions on the area where the new landfill will be constructed as well as the limiting the use of any residual impacted groundwater at the site of the eroding landfill on the shoreline.	Jonathan Schick
9/26/2011	Update or Other Action	Contaminated Sites Staff recieved response to our comment on the Landfill Design document via email. The comment was regarding the the construction of the thermistors and the access to the wiring within. The response to our comment was reviewed by staff in the solid waste division at ADEC and was deemed acceptable.	Jonathan Schick
9/28/2011	Update or Other Action	Contaminated Sites Staff submitted a letter to the US Navy's Remdial Project Manager approving of the finalization of the LAndfill Design document. The approval was limited as the construction of the landfill is associated with a CERCLA action of the removal of the eroding landfill and so this design should not be implemented until the Final Record of Decision for the site has been signed.	Jonathan Schick
10/19/2011	Document, Report, or Work plan Review - other	Contaminated Sites Staff submitted a letter to the Navy's project manager with comments on the Draft Post Closure Monitoring Report for the proposed landfill removal and freezeback action. The plan was generally acceptable with minor comments, but it cannot be finalized until after the Record of Decision has been signed and the action implemented.	Jonathan Schick
10/21/2011	Document, Report, or Work plan Review - other	Contaminated Sites Staff submitted a letter with comments on the Draft Land Use Control Plan for the proposed landfill removal and freezeback remedial action. The State's main concerns with teh plan was that it be amended to match the decisions outlined in the Record of Decision which is still in draft form.	Jonathan Schick
10/31/2011	Update or Other Action	Contaminated Sites Staff submitted comments to the Navy project manager on the Draft Final version of the Record of Decision for the site. Generally this version of the Record of Decision is in line with the State's objectives fort he document with some minor amendments required. ADEC indicated that the preference is to complete this Record of Decision and implement the remedy in the near future to limit the amount of exposure from the solid waste eroding from the landfill.	Jonathan Schick
12/16/2011	Update or Other Action	Contaminated Sites Staff recieved a Draft Final version of the Land Use Control Plan, Post-Construction Monitoring Plan, and the Landfill and Stabilization Design document for our review. Thorough review of these documents has been postponed until after a Record of Decision has been signed by the ADEC management and the Navy commander.	Jonathan Schick
1/25/2012	Document, Report, or Work plan Review - other	Contaminated Sites Staff recieved a Draft Version of the 2011 Inspection and Monitoring Report for the Former DEW Line Station at Point McIntyre. The inspection report details the results of the 2011 site inspection and sampling event. The scope of the inspection included assessment of beach erosion at the site, inspection for unauthorized use of the site, photographic documentation and sample collection from the soil, sediment and groundwater to determine if the contaminants in the landfill are migrating nito the marine environment.	Jonathan Schick
2/9/2012	Document, Report, or Work plan Review - other	Contaminated Sites Staff submitted a comment letter to the Navy Remedial Project Manager on the Draft 2011 Inspection and Monitoring Report. The comments were regarding difficulties in the GPS readings and also some clarification regarding some of the tables and figures to accurately depict the areas of impact at the site.	Jonathan Schick
3/20/2012	Document, Report, or Work plan Review - other	Contaminated Sites Staff recieved a Final Version of the 2011 Inspection and Monitoring Report for the Former DEW Line Station at Point McIntyre. The inspection report details the results of the 2011 site inspection and sampling event. The scope of the inspection included assessment of beach erosion at the site, inspection for unauthorized use of the site, photographic documentation and sample collection from the soil, sediment and groundwater to determine if the contaminants in the landfill are migrating nito the marine environment. Comments submitted on the Draft report were incorporated into this final version that is approved to be included in the site file.	Jonathan Schick
3/27/2012	Document, Report, or Work plan Review - other	Contaminated Sites Staff recieved an electronic copy of the Draft Final (Revision 2) of the Record of Decision for the eroding landfill at Point McIntyre. The Preferred alternative selected in the Record of Decision involves excavating the material from the eroding landfill including any residual soil contamination and placing the majority of the waste into a new freezeback landfill located at the airstrip located on the Navy property. Any material determined to be hazardous will not be disposed of in the on-site freezeback landfill, but will be shipped off-site to be disposed of at a permitted location.	Jonathan Schick
4/12/2012	Document, Report, or Work plan Review - other	Contaminated Sites Staff recieved a copy of the Draft 2012 Landfill and Shoreline and Inspection Plan for Former DEW Line Site, Point McIntyre. The plan details the summer 2012 field work which will include Land Use control inspection, eroding landfill inspection, shoreline inspection and photographic documentation of the current site conditions to document any erosion that has occurred during the past year.	Jonathan Schick
4/23/2012	Document, Report, or Work plan Review - other	Contaminated Sites Staff submitted a letter to the Navy Remedial Project Manager regarding Revision 2 of the Draft Final Record of Decision for the removal of the eroding landfill at Point McIntyre. This version of the ROD has updated cleanup levels in the tables and more detail in the ways that waste determinations will be made in the field. Many details will be included in the removal action work plan.	Jonathan Schick
6/13/2012	CERCLA ROD Approved	DEC signed the Record of Decsion for the site. It calls for excavation of the eroding landfill and associated contaminated soil, segregation and characterization of the soil/wastes, offsite disposal of any hazardous waste, on-site disposal of all other waste in a freeze-back landfill to be constructed in the former runway. The Navy also signed the ROD.	John Halverson
8/10/2012	Document, Report, or Work plan Review - other	Comment sent to the Navy on Pre-Construction Survey Plan Landfill Removal and Freezeback Landfill Construction, Former Distant Early Warning Line Station, Point McIntyre, Alaska Revision No.00 July 2012	Debra Caillouet
8/13/2012	Document, Report, or Work plan Review - other	Comment sent to the Navy on Landfill and Stabilization Design, Former DEW Line Station, Point McIntyre, Alaska Draft Final, Rev 2, 3 August 2012	Debra Caillouet
9/13/2012	Document, Report, or Work plan Review - other	Pre-Construction Survey Plan Landfill Removal and Freezeback Landfill Construction, Former Distant Early Warning Line Station, Point McIntyre, Alaska Revision No.01 August 2012	Debra Caillouet
10/5/2012	Document, Report, or Work plan Review - other	Final Landfill and Stabilization Desing, Former DEW Line Station, Paint McIntyre, Alaska, October 2012	Debra Caillouet
10/23/2012	Document, Report, or Work plan Review - other	Draft October 2012, Remedial Action Management Plan, Landfill Removal and Freezeback Landfill Construction, Former DEW Line Station, Point McIntyre, Alaska	Debra Caillouet
10/30/2012	Document, Report, or Work plan Review - other	2012 Inspection and Monitoring Report, Former DEW Line Station, Point McIntyre, Alaska, Draft October 2012	Debra Caillouet
11/15/2012	Document, Report, or Work plan Review - other	Staff approved the 2012 Inspection and Monitoring Report, Former DEW Line Station, Point McIntyre, Alaska, Final November 2012	Debra Caillouet
1/24/2013	Exposure Tracking Model Ranking	Initial ranking with ETM completed for source area id: 72695 name: Landfill. This is an auto action that was triggered by an administrative fix to correct reporting problems in the Unranked Sites Report. This is not an actual ETM ranking and no answers were altered within the ETM. The only part of the record affected by this fix may be the ranking dates. (Reese)	Kristin Thompson
4/12/2013	Document, Report, or Work plan Review - other	Draft Final Remedial Action Management Plan, Landfill Removal and Freezeback Landfill Construction, Former Distant Early Warning Line Station, Point McIntyre, April 2013	Debra Caillouet
7/15/2013	Cleanup Plan Approved	The June 2013 Remedial Action Management Plan was approved.	Debra Caillouet
8/19/2013	Site Visit	The Quality Assurance Officer, Todd Blessing, made a site inspection on August 19, 2013	Debra Caillouet
11/6/2013	Update or Other Action	A compliance advisory letter was sent to the Navy. In reviewing the documentation of the on-going work, photographs and site inspection reports it has become apparent that the Navy’s contractor was not always in compliance with the Alaska Site Cleanup Rules (18 AAC 75.325-75.390). Construction of the stockpile storage area and management of the stockpiles was not in compliance with the RAMP or 18 AAC 75.370. On August 19, 2013, Todd Blessing the Quality Assurance Officer for ADEC traveled to the site and noted berms around the excavated soil stockpiles were not present. The response was that the Navy would follow up and make sure the stockpiles were in compliance with the RAMP. The contractor production report (CPR) for August 21 states that berms were created around the stockpile gravel pad and they would continue to the berms around the debris pad the next day. The CPR for the next day states this was completed. The photographs provided for 9/1/13 show the berm created for the painted metal stockpile but also shows that the liner is not properly secured over the berm. Photos from 9/4 show multiple stockpiles without covers and other stockpiles not completely covered. Additional photographs provided by the Navy show that work plan was not followed for the proper construction of the stockpiles after the issue was reported to have been resolved. The berm construction is insufficient to prevent contaminant migration. Separation is not maintained between the stockpiles allowing mixing of potentially contaminated soil with soils that could either be clean or contaminated with different constituents. Failure to properly stockpile and contain excavated contaminated material may result in unpermitted discharge of petroleum or hazardous substances and secondary contamination. Photographs for 9/4/13 show a dump truck that is labeled as transporting soil to the freezeback landfill without being covered. 18 AAC 75.360 that requires contaminated soil to be transported as a covered load. Also the Site Superintendant did not meet the definition of a qualified person as required by 18 AAC 360. ADEC requests that the Navy submit corrective action plans by December 31, 2013 to: • Remove the poorly constructed stockpiles and properly treat or dispose of the material by no later than October 1, 2014. • Conduct site characterization beneath and around the stockpile locations and cleanup any secondary contamination that may have occurred. • Prevent future occurrences of non-compliance with 18 AAC 360, specifically the requirements o for a qualified person to supervise the cleanup operation, o to transport soil as a covered load o to prevent contaminated soil coming into contact with non-contaminated soil during the cleanup and o to store soil in compliance with 18 AAC 370. • Prevent releases from equipment, materials and wastewater stored on-site. • Complete the removal of the eroding landfill to ROD cleanup levels during 2014 so accelerated erosion of the Eroding Landfill will not occur. • Complete the construction of the Freeze-Back landfill and begin long-term monitoring during 2014. Additionally, ADEC requests that the Navy submit the field and laboratory data for all samples obtained during the 2013 work by Jan 31, 2014 along with copies all field notes, daily reports (production, quality or other) and all site photographs in original format (Navy and contractor) for all on-site work conducted during 2013.	Debra Caillouet
1/24/2014	Update or Other Action	The Navy has provided acceptable responses to the Compliance Advisory and will complete the remedial action in 2014.	Debra Caillouet
5/20/2014	CERCLA Remedial Design/Remedial Action Plan Approved	Final Remedial Action Management Plan, May 2014, Landfill Removal and Freezeback Landfill Construction, Former Distant Early Warning Line Station, Point McIntyre ADEC is asking that only low-flow sampling be planned for the five temporary monitoring points that will be installed. It is suggested that a inclusive groundwater monitoring plan be added to the SAP that addresses all aspects of the groundwater sampling,( location, construction, development and sampling methods, analytes etc.) be consolidated in one area of the work plan. ADEC approves this work plan under 18 AAC 75.360, on the condition that the groundwater sampling plan will be provided prior to any groundwater sampling occurring.	Debra Caillouet
8/28/2014	Document, Report, or Work plan Review - other	Final After Action Report, Landfill Removal and Freezeback Landfill Construction, Former Distant Early Warning Line Station, Point McIntyre, August 2014 The report present the actions and results of the first phase of remediation that occurred during 2013 and is approved.	Debra Caillouet
12/12/2014	Document, Report, or Work plan Review - other	Comment was sent on Land Use Control Plan, Former Distant Early Warning (DEW) Line Station, Point McIntyre, Alaska, Draft Final Revision 1, December 2014 and Post-Construction Monitoring Plan, Former Distant Early Warning (DEW) Line Station, Point McIntyre, Alaska Draft Final Revision 1, December 2014	Debra Caillouet
3/10/2015	Long Term Monitoring Established	Post-Construction Monitoring Plan, Former Distant Early Warning (DEW) Line Station, Point McIntyre, Alaska, Final March 2015 The plan provides for annual inspections of the freeze back landfill and erosion monitoring.	Debra Caillouet
5/8/2015	Document, Report, or Work plan Review - other	Comment was sent on the After Action Report, Landfill Removal and Freezeback Landfill Construction (2014 Field Season), Former Distant Early Warning (DEW) Line Site, Point McIntyre, Draft April 2015. The report documents the removal of the content and some contaminated soil from the eroding landfill and placement into a newly constructed inland landfill.	Debra Caillouet
7/20/2015	Site Characterization Workplan Approved	Final Addendum 1 to Appendix I, Final Tier I Sampling and Analysis Plan, Former Distant Early Warning (DEW) Line Station, Point McIntyre, Alaska, Final July 2015	Debra Caillouet
7/20/2015	Long Term Monitoring Established	Post-Construction Monitoring Plan Revision 1, Former Distant Early Warning (DEW) Line Station, Point McIntyre, Alaska, Final July 2015	Debra Caillouet
4/14/2016	Institutional Control Record Established	Institutional Controls established and entered into the database.	John Carnahan
4/14/2016	Institutional Control Update	Review and comment on LUC Plan for Point McIntyre.	John Carnahan
5/23/2016	Site Characterization Report Approved	DEC Approval of FINAL After-Action Report Addendum, Landfill Removal and Freezeback Landfill Construction (2015 Field Season)	John Carnahan
5/23/2016	Site Characterization Report Approved	Provide approval on Final Pt. McIntyre Post Const Monitoring Report Feb 2016. No substantive comments.	John Carnahan
6/28/2016	Document, Report, or Work plan Review - other	Review and comment on 2016 Management and Monitoring Approach Sampling and Analysis Plan.	John Carnahan
9/29/2016	Meeting or Teleconference Held	Barrow RAB Meeting held. Debenham in attendance.	John Carnahan
2/3/2017	Document, Report, or Work plan Review - other	DEC approval of FINAL Post-Construction Monitoring Report 2016, Former DEW Line Station, Point McIntyre, February 2016. No significant erosion observed, and only contaminant above project action levels was pentachlorophenol at 11 µg/l in one monitoring well (GWML-2),	John Carnahan
4/20/2018	Document, Report, or Work plan Review - other	Provide approval of PC Monitoring Report for 2017 field activities. Recommend that Navy consider more robust pore water sampling effort in response to well replacement, and elimination of PCP detections above project action levels. No other significant results.	John Carnahan
4/17/2019	Update or Other Action	Restoration advisory board (RAB) meeting held in Utqiagvik. Update provided on Umiat and others.	John Carnahan
7/19/2019	Document, Report, or Work plan Review - other	Approved Draft Sampling and Analysis plan and Waste Management Plan for 2019 Groundwater Monitoring.	Michael Hooper
7/30/2019	Update or Other Action	Received Final Sampling and Analysis Plan for 2019 Groundwater Monitoring Work	Michael Hooper
7/15/2020	Document, Report, or Work plan Review - other	Approved 2020 Sampling and Analysis plan for the eroding landfill.	Michael Hooper
9/1/2020	Document, Report, or Work plan Review - other	Reviewed post construction monitoring report. DRO and naphthalene were detected above the cleanup levels in MW2 for the first time. ADEC agrees with recommendation to continue monitoring.	Michael Hooper
4/9/2021	Site Characterization Report Approved	Approved post construction monitoring report. Naphthalene and DRO show an increasing trend this year. There was no evidence of unauthorized use or erosion at the freezeback landfill or former eroding landfill.	Michael Hooper
5/7/2021	Document, Report, or Work plan Review - other	Provided comments on Draft Tech Memo for development of Alternative cleanup levels.	Michael Hooper
6/29/2021	Document, Report, or Work plan Review - other	Approved the Sampling and analysis, quality control, waste manage, and environmental protection plan addendums to the Long-Term Monitoring, Operations and Maintenance QAPP for the Pt. McIntyre Former Eroding landfill and freezeback Landfill.	Michael Hooper
8/18/2021	Risk Assessment Workplan Approved	Approved Workplan for development of method four cleanup levels for soil and supra-permafrost water. The Navy Incorporated ADEC's suggestions submitted May 7th. A 4 phase risk assessment will be conducted to develop ecological exposure alternative cleanup levels under method four.	Michael Hooper
5/20/2022	Site Characterization Report Approved	Approved post construction monitoring report. significant erosion was noted at the eroding landfill. No analytes were detected in sentry wells but potential erosion into the marine environment should be addressed during the five year review.	Michael Hooper
6/24/2022	Document, Report, or Work plan Review - other	Reviewed Method Four ACL cleanup level document and provided comments to the Navy.	Michael Hooper
7/15/2022	Site Characterization Workplan Approved	Approved the Sampling and analysis, quality control, waste manage, and environmental protection plan addendums to the Long-Term Monitoring, Operations and Maintenance QAPP for the Pt. McIntyre Former Eroding landfill and freezeback Landfill.	Michael Hooper
10/13/2022	Update or Other Action	New Project Manager assigned	Alyssa Wood
12/6/2022	Document, Report, or Work plan Review - other	Reviewed Method Four ACL cleanup level document and provided comments to the Navy.	Alyssa Wood
12/23/2022	Document, Report, or Work plan Review - other	ADEC completed review of FINAL Ecological Risk Assessment and Development of Alternative Cleanup Levels for the Former Eroding Landfill Site, Point McIntyre Former Distant Early Warning Station, Point McIntyre, Alaska. Dated November 2022 for risk assessment and development of protective cleanup levels for the Pt. McIntryre Former Eroding Landfill contaminated site. The department received this document on November 23, 2022 and finished our review on December 21, 2022.	Alyssa Wood
6/8/2023	Document, Report, or Work plan Review - other	DEC approved a final Post-Construction Monitoring Report 2022 Point McIntyre Long-Term Monitoring, Operations, and Maintenance Former Distant Early Warning Line Station Point McIntyre, Alaska. This report summarizes field activities and the results of the annual site inspection and monitoring event that was conducted in July and August of 2022. No significant erosion or settlement was observed and thermistor data indicated the temperatures at the Freezeback landfill remained below 32 degrees Fahrenheit (°F) as of 29 July 2022. No contaminants of concern in groundwater samples were reported above cleanup levels.	Alyssa Wood
6/15/2023	Document, Report, or Work plan Review - other	Reviewed Method Four ACL cleanup level document and provided comments to the Navy.	Alyssa Wood
7/7/2023	Document, Report, or Work plan Review - other	Reviewed Five-Year Report and responses to comments from Navy and provided additional comments to the Navy.	Alyssa Wood
8/3/2023	Document, Report, or Work plan Review - other	Reviewed Method Four ACL cleanup level document and provided comments to the Navy.	Alyssa Wood
8/25/2023	Long Term Monitoring Workplan or Report Review	DEC completed review and approved the Waste Management and Quality Control plans for the 2023 LTM Point McIntyre fieldwork.	Alyssa Wood
11/2/2023	Document, Report, or Work plan Review - other	The final Ecological Risk Assessment and Development of Alternative Cleanup Levels for the Former Eroding Landfill Site: Point McIntyre Former Distant Early Warning Station Point McIntyre, Alaska report was submitted on October 30, 2023. All comments have been addressed. DEC provided an approval letter on November 2, 2023.	Alyssa Wood
11/9/2023	DEC Non-Concur on Federal No Further Action Decision	DEC issued a rescission request on November 9, 2023 after the US Navy finalized the 2nd Five Year Review (FYR) for the Pt. McIntyre DERP without resolving DEC's concerns related to state involvement and protectiveness of the remedy. DEC disagrees with the Navy's protectiveness finding in the 2nd FYR. ADEC requested that the Navy rescind the Pt. McIntyre FYR that was signed by the Navy on June 27, 2023 and request that the Navy work with ADEC, to resolve the comments and concerns that were identified during review of the draft FYR, particularly those related to the coastal erosion Remedial Action Objective.	Alyssa Wood
1/11/2024	Meeting or Teleconference Held	DEC staff Navy representatives met for a comment resolution meeting regarding outstanding comments from the 2nd Five-Year Review for the Former Distant Early Warning (DEW) Line Station in Point McIntyre, Alaska.	Alyssa Wood
4/15/2024	DEC Non-Concur on Federal No Further Action Decision	ADEC issued a follow up letter to the Navy outlining a request to amend the 2nd Five Year Review. ADEC subsequently requested that the Navy amend the FYR to 1) indicate that protectiveness is deferred 2) memorialize the actions proposed in the February 5, 2024 response to comments as recommendations in the FYR and 3) incorporate DEC's feedback in the final document.	Alyssa Wood
6/5/2024	Document, Report, or Work plan Review - other	ADEC approved a final Post-Construction Monitoring Report 2023 Point McIntyre Long-Term Monitoring, Operations, and Maintenance Former Distant Early Warning Line Station Point McIntyre, Alaska. This report summarizes field activities and the results of the annual site inspection and monitoring event that was conducted in August and September of 2023. In the report, the thermistor battery system failed from January to August of 2023 and the current status of the Freezeback Landfill is unknown. The Point McIntyre Record of Decision (ROD) states that thermistors would also be installed to monitor the temperature of the landfill and confirm that the waste in the landfill stays frozen. ADEC will reevaluate available thermistor data from the 2024 season at a later date and as applicable, we will request corrective actions as outlined in the ROD. ADEC also remains concerned that the remedial action objective (RAO) identified in the Point McIntyre ROD to prevent the erosion of solid waste and hazardous chemicals into the marine environment is not being met.	Alyssa Wood
4/24/2025	Document, Report, or Work plan Review - other	2024 Post Construction Monitoring Report received on 3/27/2025, report comments provided to the Navy on 4/24/2025	Sarah Durand

Action Date

Action

Description

DEC Staff

5/31/1992

Site Added to Database

Potential contaminants on site in unknown quantities; include POLs, lead and PCBs.

Former Staff

9/8/1992

Update or Other Action

(Old R:Base Action Code = RPL2 - Site Information Request Letter). ADEC staff sent PRP-CS Database Notification letter to RP requesting update and more environmental information concerning contaminated site. Jim Levine\COE called 10-5-92 and responded by returning updated DECRPTs.

Jeff Peterson

9/24/1993

Update or Other Action

McIntyre U.S. survey Number 404 T12N, R14E, latitude [approximately] 70 24'N, 148 40'W.

Marcus Ortelee

12/23/1994

Preliminary Assessment Approved

Received Draft Preliminary assessment (Appendix D) for Cape Sabine/Pt. McIntyre. Navy - responsible party, COE working for Navy. Funding is DERA.

Rielle Markey

1/4/1995

Site Ranked Using the AHRM

Initial ranking.

Jeff Peterson

3/18/1997

Update or Other Action

Site updated by Shannon and Wilson, based on the FUDS Site Summary dated 2/21/96.

S&W

5/4/2001

Update or Other Action

Draft Final Management Plan reviewed and commented on. Briefed Section Manager. The Management Plan is being used as the proposed plan.

Ann Farris

7/30/2001

Update or Other Action

Staff was sent a copy of a letter dated April 25, 1995 from EPA to Captain Walsh with the Navy stating Pt McIntyre is on the Federal Agency Haz Waste Compliance Docket and a no further remedial action planned decision has been entered in the docket.

Ann Farris

1/9/2004

Update or Other Action

Staff worked with the Navy Project Manager on the draft decision document for Point McIntyre. The Navy’s intent now is to try to remove all of the debris from the old dump site. The project manager believes the dump is not that deep and they will be able to remove the majority of buried debris. They will then grade the surface and reseed the area. The other ADEC concerns with the decision document should also be addressed. The next draft of the document will be submitted by January 19th.

Ann Farris

8/31/2004

Update or Other Action

DEC staff visited the site with the US Navy Project Manager on August 19, 2004. Navy contractors had removed the former structures and known contaminated soil at the site in March and April, and the resultant waste was hauled out on an ice road. August site activities included a final inspection for surface staining, removal of above-ground fuel piping, drums, and other debris, regrading of the beach after removal of exposed debris, and visual assessment of the unpermitted landfill by the beach. The final remedy for the landfill is pending resolution between DEC and the US Navy.

Colin Craven

9/27/2004

Update or Other Action

DEC staff sent a letter to the US Navy stating that the unpermitted landfill is being eroded by the Beaufort Sea and would require a long-term solution before the site could be closed.

Colin Craven

12/15/2004

Update or Other Action

DEC received copies of the draft Closure Report, Demolition and Environmental Cleanup from site activities conducted in 2004.

Colin Craven

1/14/2005

GIS Position Updated

Updated site location in database.

Colin Craven

1/28/2005

Update or Other Action

The Draft Closure Report has been reviewed and a briefing was provided to supervisors. Cleanup of documented soil contamination has been completed, however, the majority of an eroding landfill at the beach has not been addressed. This issue still requires resolution between DEC and the US Navy.

Colin Craven

2/17/2005

Update or Other Action

DEC comments on the Draft Closure Report were sent to the US Navy after review by DEC's Federal Facilities Section Manager.

Colin Craven

4/19/2005

Update or Other Action

Discussions with the US Navy have led to the tentative planning of a monitoring program for the eroding landfill at the beach. Because the 2004 site restoration removed exposed debris and covered eroded sections of the landfill, the monitoring plan would survey the landfill area in 2005 for subsequent yearly monitoring of its stability. Integral to the monitoring plan would be contingencies for removal of the landfill if its stability is compromised.

Colin Craven

5/17/2005

Site Characterization Report Approved

DEC received the revised “Final Closure Report” for Point McIntyre that incorporated comments and suggested revisions. The only remaining issue at the site is the unpermitted landfill by the beach, which is planning to undergo erosion monitoring starting in September 2005.

Colin Craven

8/3/2005

Long Term Monitoring Established

DEC reviewed the draft Monitoring Plan for the unpermitted landfill at the beach of the former Pt. McIntyre site, and accepted the plan with no suggested revisions. The Monitoring Plan proposes to perform an electromagnetic survey of the landfill, beach profile surveying, visual inspection of the site, and follow up monitoring through 2007.

Colin Craven

12/2/2005

Update or Other Action

DEC reviewed the draft of the Initial Monitoring Report submitted by Navy contractors. This report documents the first monitoring event for the on-site, unpermitted landfill. The Initial Monitoring Report includes extensive photographic and video documentation, survey transect data, an electromagnetic (EM) survey of the landfill and beach, and a complete property boundary survey. The report is thorough and should be helpful for discussions between DEC and the Navy in how to handle the landfill. The only requests for report revisions by DEC were for additional aerial photographs, submission of raw data files from the EM survey, and a few editorial changes.

Colin Craven

5/25/2006

Update or Other Action

The Navy sent DEC a revised draft of the Decision Document for Point McIntyre. A teleconference was held with the Navy to discuss the main concerns, such as the lack of a contingency plan or alternative to remove the unpermitted, eroding landfill based on the approved shoreline monitoring and inspection program. DEC will submit formal comments on these shortcomings.

Colin Craven

7/25/2006

Meeting or Teleconference Held

ADEC and the Navy discussed the draft decision document (DD) for Pt. McIntyre. The only matter not resolved from the comment and response on the draft DD was a long-term commitment by the Navy to monitor and maintain the eroding landfill, or to move its content to a permitted landfill. While the Navy is unsure currently how to fund landfill O&M or removal, it was agreed that the DD would be revised to include this long-term commitment. DEC acknowledges this difficulty, and concurs with the short-term monitoring activities carried out by the Navy, but requires a long-term commitment to landfill maintenance or removal before signing a DD for Pt. McIntyre.

Colin Craven

1/5/2007

Update or Other Action

DEC reviewed the draft of the 2006 Monitoring Report submitted by Navy contractors. This report documents the second monitoring event for the on-site, unpermitted landfill. The second Monitoring Report includes photographic documentation, survey transect data, and comparison of the 2005 and 2006 surface elevation. The report is thorough but does not address long-terms plans for the landfill. The monitoring event found that erosion at the surf appeared to be on the order of one foot between 2005 and 2006, resulting in some new drums being uncovered. Since 2000, surveys have shown a low annual shoreline change. The low recent values are interpreted as a periodic decline in a record that has exhibited incremental changes of up to 6 feet per year, and an average change of 3.2 feet per year. DEC review comments reinterated our goal for a long-term solution and holps of further dialogue with the Navy to formulate a mutually agreeable solution.

Lisa Maserjian

3/21/2007

Exposure Tracking Model Ranking

Initial ranking. Due to remoteness, most pathways were incomplete.

Lisa Maserjian

12/17/2007

Update or Other Action

Staff reviewed the Draft 2007 Monitoring Report for the beach erosion monitoring project that is ongoing at the site. The state issued a letter stating that it does not concur with the short term monitoring proposed by the Navy for this site and is pushing for a more long term plan to deal with the potential for eroding waste into the surface water. Plans are coming for a feasibility study to take place in the summer of 2008 to try to better understand the nature and extent of the contamination in the area of the landfill.

Jonathan Schick

2/15/2008

Update or Other Action

The state recieved the Final Point McIntyre 2007 Monitoring Report.

Jonathan Schick

2/2/2009

Update or Other Action

ADEC Staff recieved a copy of the Draft version of th Feasibility Study and 2008 Monitoring Report (Year 4) for the Former DEW Line Station. The FS explores options for dealing with the landfill that is near the eroding coast line.

Jonathan Schick

3/10/2009

Update or Other Action

ADEC submitted comments on the Draft Feasibility Study and the 2008 Monitoring Report in 2 separate letters addressed to the RPM at NAVFAC. The main concern of the State is the high levels of Pentachlorophenol that has been detected in the suprapermafrost groundwater. The Draft Feasibility Study does not address groundwater as a potential pathway for human receptors because of the presence of permafrost. Therefore, the State is pushing the Navy to remove the landill because of the potential ecological risk that is posed by the impacted groundwater leaching into the marine environment and the encroaching shoreline on the boundary of the landfill.

Jonathan Schick

5/22/2009

Update or Other Action

ADEC recieved a copy of the Final versions of the Feasiblity Study and 2008 Monitoring Report for the Former DEW Line Station.

Jonathan Schick

7/31/2009

Proposed Plan

ADEC staff recieved the draft version of the Porposed Plan in our office for review. The alternatives that were analyzed in the plan included complete removal and relocation of the landfill to an off-site location; relocation of the landfill at the airstrip on-site; and freezeback of the existing landfill in its present location; and No action was also analyzed as an alternative.

Jonathan Schick

7/31/2009

Update or Other Action

ADEC staff recieved the Draft Decision Document in our office for review and comment. The preferred alternative presented in the plan was to excavate and relocate the landfill and relocate it to the Airstrip and freeze it in place. There are some issues that need to be resolved in the Decision Document regarding clarification of land ownership and land transfer issues. A RAB meeting is scheduled for September 17, 2009 in Barrow to present the associated Proposed Plan to the public.

Jonathan Schick

9/14/2009

Proposed Plan

ADEC staff apptroved the finalization and distribution of the Proposed Plan for the Point McIntyre site which details the various remedial alternatives that were analyzed by the Navy. The preferred alternative in the Proposed Plan is to remove all material from the eroding landfill adjacent to the coast line and establish a new landfill on-site that will be located on the current air strip. The contents of the new landfill will be frozen in place through the burial of insulating materials to encourage the return of the permafrost layer into the landfill.

Jonathan Schick

9/17/2009

Meeting or Teleconference Held

ADEC staff travelled to Barrow, AK to attend a Restoration Advisory Board meeting to discuss the status of several sites including the Point McIntyre eroding landfill. The Proposed Plan was distributed at the meeting opening the comment period that will last approximately one month. The Proposed Plan for the site presented the prefered alternative of removing the contents and impacted soils from the existing eroding landfill and moving the contents to a new landfill that is planned to be located on the airstrip on-site. The new landfill will be covered with several feet of fil material including an insulation layer to encourage the return of permafrost to freezeback the new planned landfill.

Jonathan Schick

12/31/2009

Update or Other Action

ADEC staff submitted comments on the Draft Decision Document for Point McIntyre DEW Line Site. The Draft Decision DOcument relies on risk assessments and concludes that there is no unacceptable risk at the site, thus the on-site levels represent tthe cleanup levels. THe ADEC does not concur with this approach. ADEC is urging the Navy to consider Method 1 cleanup levels for the Arctic Zone to be used as the cleanup level for excavated soils from the eroding landfill.

Jonathan Schick

5/4/2010

Update or Other Action

ADEC issued a letter with comments on the Landfill and Stabilization Design document. The letter contained comments mostly pertaining to the analytical testing methods that were selected for the project. The letter retracts a previos letter written on April 30, 2010 approving the finalization of the document. At that time, the ADEC Project Manager was not aware that there was an additional section of the document that was submitted later via email. The ADEC's main concern is how the material will be separated and analyzed to determine where it should be disposed of and how it should be handled in the intermediate time frame.

Jonathan Schick

5/20/2010

Update or Other Action

ADEC staff submitted comments on the Point McIntyre Landfill Design Support Coastal Engineering Evaluation document. Most of the comments were questions for clarification and the issue of the 25% uncertainty factor with regards to the levels of shoreline erosion that may occur in the future as conditions may change.

Jonathan Schick

7/9/2010

Update or Other Action

ADEC recieved a draft version of the 2010 Project Specific Sampling and Analysis Plan for Point McIntyre Landfill, Alaska. This Work Plan/ Sampling and Analysis Plan is presented in the UFP QAPP format.

Jonathan Schick

7/26/2010

Update or Other Action

ADEC staff submitted comments on the 2010 Project Specific Sampling and Analysis Plan for the 2010 summer's field work to collect soil samples in an effort to confirm that the gravel pad soils are usable for backfill in the proposed landfill. The main concern was regarding the plan's call to relocate samples if visual impacts were noted.

Jonathan Schick

7/27/2010

Update or Other Action

ADEC recieved response to our comments on the Sampling and Analysis Plan for this summer's site inspection and soil sampling event. ADEC concurs with the responses including the addition of language to direct the field crew to carefully inspect any exposed barrel for containerized waste.

Jonathan Schick

8/25/2010

Update or Other Action

ADEC recieved the Draft Final version of the Sampling and Analysis Plan for borrow material for the landfill work proposed at Point McINtyre.

Jonathan Schick

8/30/2010

Update or Other Action

ADEC recieved an updated version of the Decision Docuemnt for landfill removal and placement into an on-site Freezeback landifll.

Jonathan Schick

8/30/2010

Update or Other Action

Contaminated Sites Staff recieved the draft final version of the Decision Document via email for the proposed remedial action to remove the eroding landfill from the coast of the Beaufort Sea and place its contents into a new freexeback landfill within the airstrip on the Navy's former DEW Line Site.

Jonathan Schick

9/1/2010

Update or Other Action

ADEC staff sent a letter to the Navy RPM detailing the concerns that were not addressed in the Draft Final version of the Sampling and Analysis Plan. Several of the agreed upon changes from the Draft were not made in the Draft Final docuemnt an this letter details the outstanding concerns. Unfortunately ADEC recieved this Draft Final version of the Sampling and ANalysis Plan after the field work was completed. 18 AAC 75.335 (b) requires that the responsible person shall submit a site characterization work plan to the department for approval before beginning site characterization work. In the future please provide enough time for ADEC to review any changes to the document and approve the finalization of the plan to be implemented in the field. There are still some unresolved issues from the first round of comments that need to be addressed.

Jonathan Schick

9/21/2010

Update or Other Action

Contaminated Sites Staff recieved a hard copy of the draft final version of the Decision Document for the proposed remedial action to remove the eroding landfill from the coast of the Beaufort Sea and place its contents into a new freexeback landfill within the airstrip on the Navy's former DEW Line Site.

Jonathan Schick

10/6/2010

Update or Other Action

Contaminated Site Staff submitted a letter and comment response form to the Navy in regards to the Draft Final Decicsion Document that was recieved in this office via email on August 30, 2010 and in hard copy on September 16, 2010. The State would like to see additional details included in this Decision Document as we are concerned that considerable challenges are involved in the removal and characterization of an abandoned landfill. It is not known what was disposed of in the landfill and therefore we need to be cautious during and after the remedial action to ensure that all of the hazardous materials have been removed from the unpermitted landfill and that what is placed in the new permitted landfill will not impact the surrounding environment. Adequate confirmation and characterization sampling will be necessary to ensure that the waste and soil removal from the unpermitted landfill achieves the remedial action objectives. It will also be important to limit the potential for contaminant migration to the sediments along the coastline during the remedial action.

Jonathan Schick

10/14/2010

Update or Other Action

ADEC Contaminated Sites Staff attended a Restoration Advisory Board Meeting in Barrow, AK to discuss the current advancements in the removal of the eroding landfill at Point McIntyre Former DEW Line Site. At the meeting we presented the tentative agreements between the Navy and our contaminated sites and solid waste programs to allow for the Navy to remove the contents of the eroding landfill and place the contents in a new freezeback landfill to be constructed in the footprint of the airstrip on-site. We have tentatively agreed to allowing for the disposal of the contents of the eroding landfill into the new landfill with the exception of any hazardous or TSCA regulated waste. Any waste not approved to be disposed of in the new landfill will be shipped off-site to an approved hazardous waste disposal facility.

Jonathan Schick

2/4/2011

Update or Other Action

ADEC recieved a Draft copy of the 2010 Inspection and Monitoring Report for the Point McIntyre DEW Line Site. THe report details the inspection of the eroding coastline and landfill to document any significant changes from previous monitoring events and the collection of background gravel pad samples to determine if the material is suitable for usa as backfill at the landfill that is slated to be removed adn the new freezeback landfill that is proposed for the site.

Jonathan Schick

2/15/2011

Update or Other Action

ADEC recieved the Draft Record of Decision for the Point McIntyre Former DEW Line Site. The Record of Decision documents the Navy's preferred alternative to remove the eroding landfil on the Beaufort coastline and move the contents inland to a new freezeback landfill. Te proposal allows for disposal of polluted soils in the new freezeback landfill so long as they are not TSCA regulated wastes or fail TCLP analysis that would deem the waste as hazardous. The Record of Decision is under review.

Jonathan Schick

2/25/2011

Update or Other Action

ADEC submitted a comment letter regarding the 2010 Inspection and Monitoring Report for the Former DEW Line Station at Point McIntyre. The report documented the shoreline erosion monitoring as well as some soil sample collection and analysis to determine if the material is suitable for use as backfill at the location of the landifll to be removed and the proposed freezeback landfill. All of the material sampled was deemed acceptable for usa as backfill with the exception of 4 small stained areas on the gravel pad that will be excavated and disposed of in the new freezeback landfill. Continuing erosion monitoring showed little change from the previous years' monitoring except in the area on the northwest end of the landfill at the low lying bluff which has exhibited more significant erosion from the wave action and ice scraping at the site.

Jonathan Schick

3/14/2011

Update or Other Action

COntaminated Sites Staff submitted a letter to the US Navy regarding our comments on the Draft Final Record of Decision for the eroding landfill at the site. Previously the document was going to be drafted as a state decision document, but that was changed to a CERCLA Record of Decision because of the unknown substances that may be present within the landfill. Many of the comments are concerning the ARARs and the comparison of the alternatives.

Jonathan Schick

4/21/2011

Update or Other Action

Contaminated SItes Staff recieved the Final Version of the 2010 Inspection and Monitoring Report.

Jonathan Schick

6/13/2011

Update or Other Action

Contaminated Sites Staff recieved a Draft Project-Specific Sampling and Analysis Plan for the summer 2011 field season. The plan details the sampling program for dioxins and furans in the soil and groundwater adjacent to the landfill site. Additional sediment sampling is going to be conducted and also shoreline erosion monitoring will be conducted.

Jonathan Schick

6/16/2011

Update or Other Action

Contaminated Sites Staff submitted a comment letter on the Draft Project Specific Sampling and Analysis Plan. Our main concerns were with the Sampling procedures for groundwater adn the analysis for GRO by AK 101. A Final Version should be submitted soon.

Jonathan Schick

6/23/2011

Update or Other Action

Contaminated Sites Staff recieved a Draft version of the Waste Management Plan and Environmental Protection Plan for 2011 Sampling and Landfill Inspection for our review.

Jonathan Schick

7/14/2011

Update or Other Action

Contamianted Sites Staff recieved a Draft Final version of the Point McIntyre Record of Decision for remedial action regarding the eroding landfill on-site. This document will require review from the Department of Law as well as our Department.

Jonathan Schick

7/18/2011

Update or Other Action

Contaminated Sites Staff submitted a comment letter to the US Navy Remedial Project Manager regarding the Draft Waste Management Plan and Environmental Protection Plan. The State was concerned with the plan to discharge the investigation derived waste water onto the tundra. A request was made to filter the water with a granular activated carbon filter prior to discharging the water to the surface soil.

Jonathan Schick

7/20/2011

Update or Other Action

Contaminated Sites Staff recieved the Draft Final Version of the 2011 Inspection and Monitoring Sampling and Analysis Plan. This plan had been revised from the Draft version and the comments made on the draft have been incorporated.

Jonathan Schick

7/21/2011

Update or Other Action

Contaminated Sites Staff recieved response to comments on the Draft Sampling and Analysis Plan for 2011 Inspection and Monitoring work at Point McIntyre. The responses to our comments were acceptable and the plan should be approved to be finalized.

Jonathan Schick

7/29/2011

Update or Other Action

Contaminated Sites Staff recieved a Draft Final vesion of the Landfill Stabilization Design document for our review. This document details the design for the proposed Freezeback landfill that is slated to be constructed to contain the material from the landfill on-site that is currently eroding into the Beaufort Sea.

Jonathan Schick

8/1/2011

Update or Other Action

Contaminated Sites Staff submitted a letter to the US Navy remedial project manager approving the Finalization of the 2011 Inspection and Monitoring Sampling and Analysis Plan to be implemented in the field.

Jonathan Schick

8/1/2011

Update or Other Action

Contaminated Sites Staff submitted a letter to the US Navy remedial project manager approving the Finalization of the 2011 Waste Management Plan and Environmental Protection Plan to be implemented in the field.

Jonathan Schick

8/4/2011

Update or Other Action

Contaminated Sites Staff submitted a comment letter to the Navy Remedial Project Manager with comments on the Draft Final Landfill and Stabilization Design document for the proposed ferezeback landfill at Point McIntyre. The main concern regarding the design were the temporary thermistor casings that may cause extra work in the future if they do not have easily accessible connections. Otherwise the design was acceptable.

Jonathan Schick

8/9/2011

Site Characterization Workplan Approved

Contamianted Sites Staff recieved the Final Version of the 2011 Project Specific Inspection and Sampling WOrk plans for the Former Distant Early Warning Line Station at Point McIntyre. The plan details the summer's filed work activities that include collecting groundwater and soil data from borings on the north side of the eroding landfill and also performing a visual inspection of the shoreline to make observations about the rate of erosion and to inspect for any potentially hazardous substances coming from the landfill.

Jonathan Schick

9/8/2011

Document, Report, or Work plan Review - other

Contaminated Sites Staff recieved a Draft version of the Land Use Control Plan and the Post Construction Monitoring Plan for the Planed freeezeback landfill that is slated to be constructed in the future. THe Plans are associated with and should follow the Record of Decision that is currently under review. The Land Use Contral Plan should address the restrrictions on the area where the new landfill will be constructed as well as the limiting the use of any residual impacted groundwater at the site of the eroding landfill on the shoreline.

Jonathan Schick

9/26/2011

Update or Other Action

Contaminated Sites Staff recieved response to our comment on the Landfill Design document via email. The comment was regarding the the construction of the thermistors and the access to the wiring within. The response to our comment was reviewed by staff in the solid waste division at ADEC and was deemed acceptable.

Jonathan Schick

9/28/2011

Update or Other Action

Contaminated Sites Staff submitted a letter to the US Navy's Remdial Project Manager approving of the finalization of the LAndfill Design document. The approval was limited as the construction of the landfill is associated with a CERCLA action of the removal of the eroding landfill and so this design should not be implemented until the Final Record of Decision for the site has been signed.

Jonathan Schick

10/19/2011

Document, Report, or Work plan Review - other

Contaminated Sites Staff submitted a letter to the Navy's project manager with comments on the Draft Post Closure Monitoring Report for the proposed landfill removal and freezeback action. The plan was generally acceptable with minor comments, but it cannot be finalized until after the Record of Decision has been signed and the action implemented.

Jonathan Schick

10/21/2011

Document, Report, or Work plan Review - other

Contaminated Sites Staff submitted a letter with comments on the Draft Land Use Control Plan for the proposed landfill removal and freezeback remedial action. The State's main concerns with teh plan was that it be amended to match the decisions outlined in the Record of Decision which is still in draft form.

Jonathan Schick

10/31/2011

Update or Other Action

Contaminated Sites Staff submitted comments to the Navy project manager on the Draft Final version of the Record of Decision for the site. Generally this version of the Record of Decision is in line with the State's objectives fort he document with some minor amendments required. ADEC indicated that the preference is to complete this Record of Decision and implement the remedy in the near future to limit the amount of exposure from the solid waste eroding from the landfill.

Jonathan Schick

12/16/2011

Update or Other Action

Contaminated Sites Staff recieved a Draft Final version of the Land Use Control Plan, Post-Construction Monitoring Plan, and the Landfill and Stabilization Design document for our review. Thorough review of these documents has been postponed until after a Record of Decision has been signed by the ADEC management and the Navy commander.

Jonathan Schick

1/25/2012

Document, Report, or Work plan Review - other

Contaminated Sites Staff recieved a Draft Version of the 2011 Inspection and Monitoring Report for the Former DEW Line Station at Point McIntyre. The inspection report details the results of the 2011 site inspection and sampling event. The scope of the inspection included assessment of beach erosion at the site, inspection for unauthorized use of the site, photographic documentation and sample collection from the soil, sediment and groundwater to determine if the contaminants in the landfill are migrating nito the marine environment.

Jonathan Schick

2/9/2012

Document, Report, or Work plan Review - other

Contaminated Sites Staff submitted a comment letter to the Navy Remedial Project Manager on the Draft 2011 Inspection and Monitoring Report. The comments were regarding difficulties in the GPS readings and also some clarification regarding some of the tables and figures to accurately depict the areas of impact at the site.

Jonathan Schick

3/20/2012

Document, Report, or Work plan Review - other

Contaminated Sites Staff recieved a Final Version of the 2011 Inspection and Monitoring Report for the Former DEW Line Station at Point McIntyre. The inspection report details the results of the 2011 site inspection and sampling event. The scope of the inspection included assessment of beach erosion at the site, inspection for unauthorized use of the site, photographic documentation and sample collection from the soil, sediment and groundwater to determine if the contaminants in the landfill are migrating nito the marine environment. Comments submitted on the Draft report were incorporated into this final version that is approved to be included in the site file.

Jonathan Schick

3/27/2012

Document, Report, or Work plan Review - other

Contaminated Sites Staff recieved an electronic copy of the Draft Final (Revision 2) of the Record of Decision for the eroding landfill at Point McIntyre. The Preferred alternative selected in the Record of Decision involves excavating the material from the eroding landfill including any residual soil contamination and placing the majority of the waste into a new freezeback landfill located at the airstrip located on the Navy property. Any material determined to be hazardous will not be disposed of in the on-site freezeback landfill, but will be shipped off-site to be disposed of at a permitted location.

Jonathan Schick

4/12/2012

Document, Report, or Work plan Review - other

Contaminated Sites Staff recieved a copy of the Draft 2012 Landfill and Shoreline and Inspection Plan for Former DEW Line Site, Point McIntyre. The plan details the summer 2012 field work which will include Land Use control inspection, eroding landfill inspection, shoreline inspection and photographic documentation of the current site conditions to document any erosion that has occurred during the past year.

Jonathan Schick

4/23/2012

Document, Report, or Work plan Review - other

Contaminated Sites Staff submitted a letter to the Navy Remedial Project Manager regarding Revision 2 of the Draft Final Record of Decision for the removal of the eroding landfill at Point McIntyre. This version of the ROD has updated cleanup levels in the tables and more detail in the ways that waste determinations will be made in the field. Many details will be included in the removal action work plan.

Jonathan Schick

6/13/2012

CERCLA ROD Approved

DEC signed the Record of Decsion for the site. It calls for excavation of the eroding landfill and associated contaminated soil, segregation and characterization of the soil/wastes, offsite disposal of any hazardous waste, on-site disposal of all other waste in a freeze-back landfill to be constructed in the former runway. The Navy also signed the ROD.

John Halverson

8/10/2012

Document, Report, or Work plan Review - other

Comment sent to the Navy on Pre-Construction Survey Plan Landfill Removal and Freezeback Landfill Construction, Former Distant Early Warning Line Station, Point McIntyre, Alaska Revision No.00 July 2012

Debra Caillouet

8/13/2012

Document, Report, or Work plan Review - other

Comment sent to the Navy on Landfill and Stabilization Design, Former DEW Line Station, Point McIntyre, Alaska Draft Final, Rev 2, 3 August 2012

Debra Caillouet

9/13/2012

Document, Report, or Work plan Review - other

Pre-Construction Survey Plan Landfill Removal and Freezeback Landfill Construction, Former Distant Early Warning Line Station, Point McIntyre, Alaska Revision No.01 August 2012

Debra Caillouet

10/5/2012

Document, Report, or Work plan Review - other

Final Landfill and Stabilization Desing, Former DEW Line Station, Paint McIntyre, Alaska, October 2012

Debra Caillouet

10/23/2012

Document, Report, or Work plan Review - other

Draft October 2012, Remedial Action Management Plan, Landfill Removal and Freezeback Landfill Construction, Former DEW Line Station, Point McIntyre, Alaska

Debra Caillouet

10/30/2012

Document, Report, or Work plan Review - other

2012 Inspection and Monitoring Report, Former DEW Line Station, Point McIntyre, Alaska, Draft October 2012

Debra Caillouet

11/15/2012

Document, Report, or Work plan Review - other

Staff approved the 2012 Inspection and Monitoring Report, Former DEW Line Station, Point McIntyre, Alaska, Final November 2012

Debra Caillouet

1/24/2013

Exposure Tracking Model Ranking

Initial ranking with ETM completed for source area id: 72695 name: Landfill. This is an auto action that was triggered by an administrative fix to correct reporting problems in the Unranked Sites Report. This is not an actual ETM ranking and no answers were altered within the ETM. The only part of the record affected by this fix may be the ranking dates. (Reese)

Kristin Thompson

4/12/2013

Document, Report, or Work plan Review - other

Draft Final Remedial Action Management Plan, Landfill Removal and Freezeback Landfill Construction, Former Distant Early Warning Line Station, Point McIntyre, April 2013

Debra Caillouet

7/15/2013

Cleanup Plan Approved

The June 2013 Remedial Action Management Plan was approved.

Debra Caillouet

8/19/2013

Site Visit

The Quality Assurance Officer, Todd Blessing, made a site inspection on August 19, 2013

Debra Caillouet

11/6/2013

Update or Other Action

A compliance advisory letter was sent to the Navy. In reviewing the documentation of the on-going work, photographs and site inspection reports it has become apparent that the Navy’s contractor was not always in compliance with the Alaska Site Cleanup Rules (18 AAC 75.325-75.390). Construction of the stockpile storage area and management of the stockpiles was not in compliance with the RAMP or 18 AAC 75.370. On August 19, 2013, Todd Blessing the Quality Assurance Officer for ADEC traveled to the site and noted berms around the excavated soil stockpiles were not present. The response was that the Navy would follow up and make sure the stockpiles were in compliance with the RAMP. The contractor production report (CPR) for August 21 states that berms were created around the stockpile gravel pad and they would continue to the berms around the debris pad the next day. The CPR for the next day states this was completed. The photographs provided for 9/1/13 show the berm created for the painted metal stockpile but also shows that the liner is not properly secured over the berm. Photos from 9/4 show multiple stockpiles without covers and other stockpiles not completely covered. Additional photographs provided by the Navy show that work plan was not followed for the proper construction of the stockpiles after the issue was reported to have been resolved. The berm construction is insufficient to prevent contaminant migration. Separation is not maintained between the stockpiles allowing mixing of potentially contaminated soil with soils that could either be clean or contaminated with different constituents. Failure to properly stockpile and contain excavated contaminated material may result in unpermitted discharge of petroleum or hazardous substances and secondary contamination. Photographs for 9/4/13 show a dump truck that is labeled as transporting soil to the freezeback landfill without being covered. 18 AAC 75.360 that requires contaminated soil to be transported as a covered load. Also the Site Superintendant did not meet the definition of a qualified person as required by 18 AAC 360. ADEC requests that the Navy submit corrective action plans by December 31, 2013 to: • Remove the poorly constructed stockpiles and properly treat or dispose of the material by no later than October 1, 2014. • Conduct site characterization beneath and around the stockpile locations and cleanup any secondary contamination that may have occurred. • Prevent future occurrences of non-compliance with 18 AAC 360, specifically the requirements o for a qualified person to supervise the cleanup operation, o to transport soil as a covered load o to prevent contaminated soil coming into contact with non-contaminated soil during the cleanup and o to store soil in compliance with 18 AAC 370. • Prevent releases from equipment, materials and wastewater stored on-site. • Complete the removal of the eroding landfill to ROD cleanup levels during 2014 so accelerated erosion of the Eroding Landfill will not occur. • Complete the construction of the Freeze-Back landfill and begin long-term monitoring during 2014. Additionally, ADEC requests that the Navy submit the field and laboratory data for all samples obtained during the 2013 work by Jan 31, 2014 along with copies all field notes, daily reports (production, quality or other) and all site photographs in original format (Navy and contractor) for all on-site work conducted during 2013.

Debra Caillouet

1/24/2014

Update or Other Action

The Navy has provided acceptable responses to the Compliance Advisory and will complete the remedial action in 2014.

Debra Caillouet

5/20/2014

CERCLA Remedial Design/Remedial Action Plan Approved

Final Remedial Action Management Plan, May 2014, Landfill Removal and Freezeback Landfill Construction, Former Distant Early Warning Line Station, Point McIntyre ADEC is asking that only low-flow sampling be planned for the five temporary monitoring points that will be installed. It is suggested that a inclusive groundwater monitoring plan be added to the SAP that addresses all aspects of the groundwater sampling,( location, construction, development and sampling methods, analytes etc.) be consolidated in one area of the work plan. ADEC approves this work plan under 18 AAC 75.360, on the condition that the groundwater sampling plan will be provided prior to any groundwater sampling occurring.

Debra Caillouet

8/28/2014

Document, Report, or Work plan Review - other

Final After Action Report, Landfill Removal and Freezeback Landfill Construction, Former Distant Early Warning Line Station, Point McIntyre, August 2014 The report present the actions and results of the first phase of remediation that occurred during 2013 and is approved.

Debra Caillouet

12/12/2014

Document, Report, or Work plan Review - other

Comment was sent on Land Use Control Plan, Former Distant Early Warning (DEW) Line Station, Point McIntyre, Alaska, Draft Final Revision 1, December 2014 and Post-Construction Monitoring Plan, Former Distant Early Warning (DEW) Line Station, Point McIntyre, Alaska Draft Final Revision 1, December 2014

Debra Caillouet

3/10/2015

Long Term Monitoring Established

Post-Construction Monitoring Plan, Former Distant Early Warning (DEW) Line Station, Point McIntyre, Alaska, Final March 2015 The plan provides for annual inspections of the freeze back landfill and erosion monitoring.

Debra Caillouet

5/8/2015

Document, Report, or Work plan Review - other

Comment was sent on the After Action Report, Landfill Removal and Freezeback Landfill Construction (2014 Field Season), Former Distant Early Warning (DEW) Line Site, Point McIntyre, Draft April 2015. The report documents the removal of the content and some contaminated soil from the eroding landfill and placement into a newly constructed inland landfill.

Debra Caillouet

7/20/2015

Site Characterization Workplan Approved

Final Addendum 1 to Appendix I, Final Tier I Sampling and Analysis Plan, Former Distant Early Warning (DEW) Line Station, Point McIntyre, Alaska, Final July 2015

Debra Caillouet

7/20/2015

Long Term Monitoring Established

Post-Construction Monitoring Plan Revision 1, Former Distant Early Warning (DEW) Line Station, Point McIntyre, Alaska, Final July 2015

Debra Caillouet

4/14/2016

Institutional Control Record Established

Institutional Controls established and entered into the database.

John Carnahan

4/14/2016

Institutional Control Update

Review and comment on LUC Plan for Point McIntyre.

John Carnahan

5/23/2016

Site Characterization Report Approved

DEC Approval of FINAL After-Action Report Addendum, Landfill Removal and Freezeback Landfill Construction (2015 Field Season)

John Carnahan

5/23/2016

Site Characterization Report Approved

Provide approval on Final Pt. McIntyre Post Const Monitoring Report Feb 2016. No substantive comments.

John Carnahan

6/28/2016

Document, Report, or Work plan Review - other

Review and comment on 2016 Management and Monitoring Approach Sampling and Analysis Plan.

John Carnahan

9/29/2016

Meeting or Teleconference Held

Barrow RAB Meeting held. Debenham in attendance.

John Carnahan

2/3/2017

Document, Report, or Work plan Review - other

DEC approval of FINAL Post-Construction Monitoring Report 2016, Former DEW Line Station, Point McIntyre, February 2016. No significant erosion observed, and only contaminant above project action levels was pentachlorophenol at 11 µg/l in one monitoring well (GWML-2),

John Carnahan

4/20/2018

Document, Report, or Work plan Review - other

Provide approval of PC Monitoring Report for 2017 field activities. Recommend that Navy consider more robust pore water sampling effort in response to well replacement, and elimination of PCP detections above project action levels. No other significant results.

John Carnahan

4/17/2019

Update or Other Action

Restoration advisory board (RAB) meeting held in Utqiagvik. Update provided on Umiat and others.

John Carnahan

7/19/2019

Document, Report, or Work plan Review - other

Approved Draft Sampling and Analysis plan and Waste Management Plan for 2019 Groundwater Monitoring.

Michael Hooper

7/30/2019

Update or Other Action

Received Final Sampling and Analysis Plan for 2019 Groundwater Monitoring Work

Michael Hooper

7/15/2020

Document, Report, or Work plan Review - other

Approved 2020 Sampling and Analysis plan for the eroding landfill.

Michael Hooper

9/1/2020

Document, Report, or Work plan Review - other

Reviewed post construction monitoring report. DRO and naphthalene were detected above the cleanup levels in MW2 for the first time. ADEC agrees with recommendation to continue monitoring.

Michael Hooper

4/9/2021

Site Characterization Report Approved

Approved post construction monitoring report. Naphthalene and DRO show an increasing trend this year. There was no evidence of unauthorized use or erosion at the freezeback landfill or former eroding landfill.

Michael Hooper

5/7/2021

Document, Report, or Work plan Review - other

Provided comments on Draft Tech Memo for development of Alternative cleanup levels.

Michael Hooper

6/29/2021

Document, Report, or Work plan Review - other

Approved the Sampling and analysis, quality control, waste manage, and environmental protection plan addendums to the Long-Term Monitoring, Operations and Maintenance QAPP for the Pt. McIntyre Former Eroding landfill and freezeback Landfill.

Michael Hooper

8/18/2021

Risk Assessment Workplan Approved

Approved Workplan for development of method four cleanup levels for soil and supra-permafrost water. The Navy Incorporated ADEC's suggestions submitted May 7th. A 4 phase risk assessment will be conducted to develop ecological exposure alternative cleanup levels under method four.

Michael Hooper

5/20/2022

Site Characterization Report Approved

Approved post construction monitoring report. significant erosion was noted at the eroding landfill. No analytes were detected in sentry wells but potential erosion into the marine environment should be addressed during the five year review.

Michael Hooper

6/24/2022

Document, Report, or Work plan Review - other

Reviewed Method Four ACL cleanup level document and provided comments to the Navy.

Michael Hooper

7/15/2022

Site Characterization Workplan Approved

Michael Hooper

10/13/2022

Update or Other Action

New Project Manager assigned

Alyssa Wood

12/6/2022

Document, Report, or Work plan Review - other

Reviewed Method Four ACL cleanup level document and provided comments to the Navy.

Alyssa Wood

12/23/2022

Document, Report, or Work plan Review - other

ADEC completed review of FINAL Ecological Risk Assessment and Development of Alternative Cleanup Levels for the Former Eroding Landfill Site, Point McIntyre Former Distant Early Warning Station, Point McIntyre, Alaska. Dated November 2022 for risk assessment and development of protective cleanup levels for the Pt. McIntryre Former Eroding Landfill contaminated site. The department received this document on November 23, 2022 and finished our review on December 21, 2022.

Alyssa Wood

6/8/2023

Document, Report, or Work plan Review - other

DEC approved a final Post-Construction Monitoring Report 2022 Point McIntyre Long-Term Monitoring, Operations, and Maintenance Former Distant Early Warning Line Station Point McIntyre, Alaska. This report summarizes field activities and the results of the annual site inspection and monitoring event that was conducted in July and August of 2022. No significant erosion or settlement was observed and thermistor data indicated the temperatures at the Freezeback landfill remained below 32 degrees Fahrenheit (°F) as of 29 July 2022. No contaminants of concern in groundwater samples were reported above cleanup levels.

Alyssa Wood

6/15/2023

Document, Report, or Work plan Review - other

Reviewed Method Four ACL cleanup level document and provided comments to the Navy.

Alyssa Wood

7/7/2023

Document, Report, or Work plan Review - other

Reviewed Five-Year Report and responses to comments from Navy and provided additional comments to the Navy.

Alyssa Wood

8/3/2023

Document, Report, or Work plan Review - other

Reviewed Method Four ACL cleanup level document and provided comments to the Navy.

Alyssa Wood

8/25/2023

Long Term Monitoring Workplan or Report Review

DEC completed review and approved the Waste Management and Quality Control plans for the 2023 LTM Point McIntyre fieldwork.

Alyssa Wood

11/2/2023

Document, Report, or Work plan Review - other

The final Ecological Risk Assessment and Development of Alternative Cleanup Levels for the Former Eroding Landfill Site: Point McIntyre Former Distant Early Warning Station Point McIntyre, Alaska report was submitted on October 30, 2023. All comments have been addressed. DEC provided an approval letter on November 2, 2023.

Alyssa Wood

11/9/2023

DEC Non-Concur on Federal No Further Action Decision

DEC issued a rescission request on November 9, 2023 after the US Navy finalized the 2nd Five Year Review (FYR) for the Pt. McIntyre DERP without resolving DEC's concerns related to state involvement and protectiveness of the remedy. DEC disagrees with the Navy's protectiveness finding in the 2nd FYR. ADEC requested that the Navy rescind the Pt. McIntyre FYR that was signed by the Navy on June 27, 2023 and request that the Navy work with ADEC, to resolve the comments and concerns that were identified during review of the draft FYR, particularly those related to the coastal erosion Remedial Action Objective.

Alyssa Wood

1/11/2024

Meeting or Teleconference Held

DEC staff Navy representatives met for a comment resolution meeting regarding outstanding comments from the 2nd Five-Year Review for the Former Distant Early Warning (DEW) Line Station in Point McIntyre, Alaska.

Alyssa Wood

4/15/2024

DEC Non-Concur on Federal No Further Action Decision

ADEC issued a follow up letter to the Navy outlining a request to amend the 2nd Five Year Review. ADEC subsequently requested that the Navy amend the FYR to 1) indicate that protectiveness is deferred 2) memorialize the actions proposed in the February 5, 2024 response to comments as recommendations in the FYR and 3) incorporate DEC's feedback in the final document.

Alyssa Wood

6/5/2024

Document, Report, or Work plan Review - other

ADEC approved a final Post-Construction Monitoring Report 2023 Point McIntyre Long-Term Monitoring, Operations, and Maintenance Former Distant Early Warning Line Station Point McIntyre, Alaska. This report summarizes field activities and the results of the annual site inspection and monitoring event that was conducted in August and September of 2023. In the report, the thermistor battery system failed from January to August of 2023 and the current status of the Freezeback Landfill is unknown. The Point McIntyre Record of Decision (ROD) states that thermistors would also be installed to monitor the temperature of the landfill and confirm that the waste in the landfill stays frozen. ADEC will reevaluate available thermistor data from the 2024 season at a later date and as applicable, we will request corrective actions as outlined in the ROD. ADEC also remains concerned that the remedial action objective (RAO) identified in the Point McIntyre ROD to prevent the erosion of solid waste and hazardous chemicals into the marine environment is not being met.

Alyssa Wood

4/24/2025

Document, Report, or Work plan Review - other

2024 Post Construction Monitoring Report received on 3/27/2025, report comments provided to the Navy on 4/24/2025

Sarah Durand

Contaminant Information

Name	Level Description	Media	Comments
Pentachlorophenol	> Table C	Groundwater	Active zone water in vicinity of the former landfill still demonstrates PCP impacts. Monitoring will continue.

Name

Level Description

Media

Comments

Pentachlorophenol

> Table C

Groundwater

Active zone water in vicinity of the former landfill still demonstrates PCP impacts. Monitoring will continue.

Control Type

Type	Details
Land Use Plan / Maps / Base Master Plan	Documented in the Naval Facilities Engineering Command Northwest office In Sliverdale, WA.

Type

Details

Land Use Plan / Maps / Base Master Plan

Documented in the Naval Facilities Engineering Command Northwest office In Sliverdale, WA.

Requirements

Description	Details
Excavation / Soil Movement Restrictions	The Freezeback Landfill is approximately 1,010 feet long by 110 feet wide, and contains nonhazardous contaminated soils, solid waste, and debris consolidated from the former Eroding Landfill and other areas approved by ADEC on the site. The limits of the Freezeback Landfill are shown on Figure 1-3. The following LUCs or restrictions will be applied to this area: • Ensure no disturbance to the Freezeback Landfill cap, except as necessary for authorized cap maintenance and other maintenance activities.
Groundwater Use Restrictions	The former Eroding Landfill covered an area approximately 350 feet long by 170 feet wide along the shoreline of the Beaufort Sea. In addition, the remedy addressed an area of debris about 450 feet long and 40 feet wide that extended along the shoreline to the east of the main Eroding Landfill. The following LUCs or restrictions will be applied within this area: • Ensure no groundwater use from, or downgradient of, the area except for monitoring and remediation as approved by ADEC. • Protect groundwater monitoring location points until removal is approved by ADEC and the Navy
Maintenance / Inspection Of Engineering Controls	Annual reporting to coincide with LTM for first 5 years, beginning 2016, the timeframe to be reevaluated thereafter.

Description

Details

Excavation / Soil Movement Restrictions

The Freezeback Landfill is approximately 1,010 feet long by 110 feet wide, and contains nonhazardous contaminated soils, solid waste, and debris consolidated from the former Eroding Landfill and other areas approved by ADEC on the site. The limits of the Freezeback Landfill are shown on Figure 1-3. The following LUCs or restrictions will be applied to this area: • Ensure no disturbance to the Freezeback Landfill cap, except as necessary for authorized cap maintenance and other maintenance activities.

Groundwater Use Restrictions

The former Eroding Landfill covered an area approximately 350 feet long by 170 feet wide along the shoreline of the Beaufort Sea. In addition, the remedy addressed an area of debris about 450 feet long and 40 feet wide that extended along the shoreline to the east of the main Eroding Landfill. The following LUCs or restrictions will be applied within this area: • Ensure no groundwater use from, or downgradient of, the area except for monitoring and remediation as approved by ADEC. • Protect groundwater monitoring location points until removal is approved by ADEC and the Navy

Maintenance / Inspection Of Engineering Controls

Annual reporting to coincide with LTM for first 5 years, beginning 2016, the timeframe to be reevaluated thereafter.

Rescission Request for Second Five-Year Review Report

2017 Post-Construction Monitoring Report

First Five-Year Review

2018 Management and Monitoring Approach Sampling and Analysis Plan

2016 FINAL Land Use Control Plan, Former DEW Line Station, Pt. McIntyre, Alaska March 2016

No associated sites were found.

Missing Location Data

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Alaska Department of Environmental Conservation

Site Report: Point McIntyre / DERP

Site Chronology

IC / Closure Details

Documents

Associated Sites

Problems/Comments

Action Information

Contaminant Information

Control Type

Requirements

Rescission Request for Second Five-Year Review Report

2017 Post-Construction Monitoring Report

First Five-Year Review

2018 Management and Monitoring Approach Sampling and Analysis Plan

2016 FINAL Land Use Control Plan, Former DEW Line Station, Pt. McIntyre, Alaska March 2016

Missing Location Data

State of Alaska Department of Environmental Conservation