| Action Date |
Action |
Description |
DEC Staff |
| 5/31/1992 |
Site Added to Database |
Reported contamination includes: petroleum hydrocarbons, PCBs and lead. |
Former Staff |
| 6/18/1992 |
Update or Other Action |
(Old R:Base Action Code = SI - Site Investigation). Staff reviewed Pre-Design Final Report dated March, 1992. Report contains previous sampling data and defines regulatory levels for site contaminants. |
Bob Couch |
| 6/24/1992 |
Meeting or Teleconference Held |
Met with Corps of Engineers and USF&WS to establish cleanup levels and cleanup methods for summer of 1993 work. The Corps plan to conduct remediation as they continue to define extend of contamination. |
Laura Noland |
| 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 |
| 3/26/1993 |
Update or Other Action |
(Old R:Base Action Code = RAPR - Remedial Action Plan Review (CS)). Staff received remedial action workplan which describes a removal action to take place. Site would not obtain clean closure with this proposed action. |
Rielle Markey |
| 4/28/1993 |
Update or Other Action |
(Old R:Base Action Code = CORR - Correspondence (General)). Staff sent ADEC proposed action levels for cleanup at site to E&E's Brian Miskel. |
Marcus Ortelee |
| 5/13/1993 |
Cleanup Level(s) Approved |
(Old R:Base Action Code = CORR - Correspondence (General)). ADEC staff to Gail Braten of COE, on action levels for soil and gravel pad cleanup levels. ADEC and USFWS worked together to establish levels based on health and ecological criteria. |
Marcus Ortelee |
| 8/27/1993 |
Update or Other Action |
Bidding Documents received. |
Bob Couch |
| 2/16/1994 |
Update or Other Action |
(Old R:Base Action Code = RAPR - Remedial Action Plan Review (CS)). Staff received Contractor Quality Control Plan - Removal Action. |
Bob Couch |
| 2/23/1994 |
Meeting or Teleconference Held |
Attended pre-construction conference at COE resident engineer office. |
Bob Couch |
| 1/4/1995 |
Site Ranked Using the AHRM |
Initial ranking. |
Jeff Peterson |
| 1/24/1996 |
Update or Other Action |
Received "Removal Action" Draft Final Report, Volumes 1, 2, and 3. |
Kalu Kalu |
| 3/18/1997 |
Update or Other Action |
Site updated by Shannon and Wilson, based on FUDS Site Summary dated 2/21/96. |
S&W |
| 10/5/1999 |
Update or Other Action |
Removal occurred in 1996. Additional removal planned for summer 2000. Plans are to remove everything at the site and dispose appropriately. |
Rielle Markey |
| 4/11/2001 |
Update or Other Action |
DEC received a copy of an EPA letter to USFWS and USACE deferring listing on the NPL. |
Debra Caillouet |
| 6/4/2001 |
Update or Other Action |
Sent comment letter on draft removal action report. The report described demolition and site characterization work completed during 2000 field season. All of the structures were removed and disposed of off-site, surface stained soil was excavated, miscellaneous debris removed. Remaining contamination in soil and surface water. Lead at 94 ug/L in surface water and 4.6 mg/kg PCBs in soil is of concern along with cumulative risk from multiple VOCs. Comment letter indicated CSM and cumulative risk calculation should be completed. |
Ann Farris |
| 5/21/2003 |
Site Number Identifier Changed |
Changed Region from 36 to 31. |
Former Staff |
| 6/10/2003 |
Site Characterization Workplan Approved |
Approved plan for additional sampling to further delineate soil, sediment, and surface water contamination. |
Ann Farris |
| 10/31/2003 |
Meeting or Teleconference Held |
Additional sampling was completed during the 2003 field season to determine the extent of contamination detected in the 2000 demolition effort. The results are currently being quality-controlled by the Corps of Engineer’s chemistry section and then will be sent out. The Barter Island RAB indicated there is additional debris washing up at the site, but there is no indication of contamination from the debris. Ron Pflum with the COE indicated the FUDs program is no longer able to remove debris. He indicated the Village could check into NALEMP funds to do the removal themselves. |
Ann Farris |
| 6/28/2004 |
Site Characterization Report Approved |
Staff reviewed a chemical data report for sampling that was conducted in the July 2003. The report indicated there was fuel, arsenic, lead, and PCBs remaining in the soil, sediment, and surface water ponds at the site. The PCBs are relatively low levels, seemingly localized around the composite building. The fuel has been found in the sediment and water at the AST area and the drum site D area. There was also debris found by dump site E, but no samples were collected. The COE recommended further remedial action. ADEC concurred. The COE project manager is working to secure funding for the project. |
Ann Farris |
| 7/23/2007 |
Update or Other Action |
Staff reviewed and provided comment to the USACE on a draft remedial investigation work plan. |
Debra Caillouet |
| 9/27/2007 |
Site Characterization Workplan Approved |
Staff approved Rev 2 of the RI work plan |
Debra Caillouet |
| 11/16/2007 |
Exposure Tracking Model Ranking |
|
Debra Caillouet |
| 6/6/2008 |
Site Characterization Report Approved |
The report presents the results of sampling and analysis at the AST Pad, Dump Site D, Composite Building and Kogotpak River Landfill. This data along with data from previous field efforts should allow development of a cleanup plan for three of the sites. The report recommends additional characterization at the Kogotpak River Landfill
A survey of the coast line in 2007 was compared to 1997 aerial photograph. The contractor determined that the coast line has eroded 49-110 feet. This equates to an average erosion of 2.5 to 5.5 feet per year. The erosion is rapidly approaching areas of Dump Site D that exceed Method Two cleanup levels for the Arctic Zone. The erosion may result in disposal of the contaminated soil if a removal action is delayed. DEC’s current understanding is the removal action is planned for 2009.
|
Debra Caillouet |
| 12/12/2008 |
Document, Report, or Work plan Review - other |
The draft RI/FS was reviewed and significant comment sent to the Corps. |
Debra Caillouet |
| 2/22/2010 |
Update or Other Action |
The Final Ecoscoping Forms and Ecological Conceptual Site Models, Collinson Point and Nuvagapak Point, DEW Line Stations, February 2010 were received. The ecoscoping indicates the need for a screening level risk assessment. |
Debra Caillouet |
| 7/28/2010 |
Risk Assessment Report Approved |
The Final Preliminary Screening Evaluation and Ecological Conceptual Site Models,
Collinson Point and Nuvagapak Point, DEW Line Stations July 2010 were approved.
Based on the information in these documents ADEC does not believe there is a need
to proceed to an ecological risk assessment. While some of the exceedances if the
ecological screening levels are significant, if the sites are cleaned up to Method
II levels these will be minimized. It is believed that if a full risk assessment
was done, the size of the impacts and the quality of the habitat would demonstrate
that there is no significant ecological risk. |
Debra Caillouet |
| 7/28/2011 |
CERCLA FS |
Final Remedial Investigation/Feasibility Study Report Nuvagapak Point Distant Early Warning Line Station, Nuvagapak Point Alaska, May 2011 |
Debra Caillouet |
| 10/9/2013 |
CERCLA ROD Approved |
Decision Document |
Debra Caillouet |
| 5/19/2014 |
Document, Report, or Work plan Review - other |
The draft Collinson and Nuvagapak Remedial Aciton work plan was reviewed and comment sent to the Corps. |
Debra Caillouet |
| 7/10/2014 |
CERCLA Remedial Design/Remedial Action Plan Approved |
Final Work Plan, Collinson Point and Nuvagapak Point Remedial Action |
Debra Caillouet |
| 10/9/2015 |
Update or Other Action |
Oversight temporarily transferred to Carnahan. (Update - as of 1/4, oversight remains. Carnahan to review outstanding documents.) |
John Carnahan |
| 1/28/2016 |
Document, Report, or Work plan Review - other |
Provided comments on DRAFT remedial action at multiple sites, including Drum Dump D, AST Pad, Composite Building, Debris Pile A, and Shop Area. Request for increase of cleanup level in Drum Dump D area proposed based on background study. Further cleanup at Shop Area required, and contaminated waste material continues to be staged at site due to difficulties in site access by barges for consecutive field seasons. |
John Carnahan |
| 2/29/2016 |
Update or Other Action |
Provided Response to Comments on DEC Comments on DRAFT remedial action at multiple sites, including Drum Dump D, AST Pad, Composite Building, Debris Pile A, and Shop Area. |
John Carnahan |
| 9/29/2016 |
Meeting or Teleconference Held |
Barrow RAB Meeting held. Debenham in attendance. |
John Carnahan |
| 4/19/2018 |
CERCLA Remedial Action Completion Report |
DEC Approval - Revised Final Remedial Action Report, Nuvagapak Point, Former DEW Line Station, January 2018 |
John Carnahan |
| 4/19/2018 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 78692 Dump Site D. |
John Carnahan |
| 11/16/2018 |
Document, Report, or Work plan Review - other |
Provide comments on FUDS Closeout Report, October 2018. |
John Carnahan |
| 3/21/2019 |
Cleanup Complete Determination Issued |
Soil contaminants remaining at the site are below the approved cleanup levels suitable for residential land use or are considered ‘naturally occurring.’ This site received a “Cleanup Complete” designation on the Contaminated Sites Database, subject to the standard site closure conditions. |
John Carnahan |
