| Action Date |
Action |
Description |
DEC Staff |
| 4/15/2000 |
Site Added to Database |
Ordnance or ordnance-related problems. |
Elim Yoon |
| 4/15/2000 |
Update or Other Action |
The Level I Screen is a framework intended to facilitate somewhat objective evaluation of subjective issues and information. The screen considers the ordnance characteristics of the site (i.e., type of ordnance and density) along with physical characteristics of the site (i.e., terrain and vegetation) to determine the qualitative risk associated and the general category of future action that may be needed at the site to minimize that risk (i.e., additional investigation, remedial action, or no action). The screen also incorporates evaluation of the strength of evidence upon which screening decisions are made to ensure that there is reasonable supporting data for the choices made at this stage of the process. |
Elim Yoon |
| 6/2/2004 |
Update or Other Action |
Site is located in OU B-2/Parcel 4 area |
Jason Weigle |
| 10/19/2004 |
GIS Position Updated |
Latitude and Longitude was derived using ArcGIS with either High Resolution Aerial Photography from the Navy with an up to 3 meters error, or line maps used in investigations combined with road layers, +/-25 feet accuracy. Metadata is as follows: Updated NAD 1983 State Plane Alaska 10 FIPS 5010 Feet; Projection: Lambert Conformal Conic; False Easting: 3280833.333333; False Northing: 0.000000; Central Meridian: -176.000000; Standard Parallel 1: 51.833333; Standard Parallel 2: 53.833333; Latitude of Origin: 51.000000; GCS North American 1983. |
Jason Weigle |
| 3/4/2005 |
Update or Other Action |
Site is in the draft OU B-2 RI/FS stage. RI/FS has been put on hold pending outcome of dispute between Navy, EPA, and ADEC. |
Jason Weigle |
| 3/7/2005 |
Update or Other Action |
Added MRTS data, derived from ADNR and USGS range, township, and section data overlaid on lat/lon coordinates derived previously. Accuracy is equivalent to the lat/lon coordinates. MRTS information depicts the center point of range fans and target areas; actual target areas or fans may overlap several sections. |
Jason Weigle |
| 4/5/2006 |
Update or Other Action |
File number 2501.38.006 assigned on this date. |
Jason Weigle |
| 8/15/2006 |
Update or Other Action |
Received Draft Remedial Investigation/Feasibility Study (RI/FS) report for OUB-2 Sites. |
Guy Warren |
| 11/6/2006 |
Update or Other Action |
Submitted comments on the OUB-2 RI/FS report. Comments focused on the lack of supporting evidence for the proposed land status change to Restricted Access Military Reservation (RAMR) and the lack of site specific characterization data to support the Feasibility Study and cost estimates. |
Guy Warren |
| 12/5/2006 |
Meeting or Teleconference Held |
During a Phone Conference with the Navy and EPA project managers the Navy informed us tha they concurred with agency comments regarding the lack of characterization data for the OUB-2 sites. The Navy is beginning to plan for a Release Investigaton to be conducted during the 2008 field season. Both agencies (ADEC and EPA) support this strategy. |
Guy Warren |
| 2/14/2007 |
Meeting or Teleconference Held |
Attended OUB Project Team meeting to discuss strategies for investigating the OUB-2 sites. Discussion focused on the proposed outline for the work plan and site specific investigation methodologies for the remaining OUB-2 Sites. |
Guy Warren |
| 8/27/2007 |
Exposure Tracking Model Ranking |
Intitial Ranking Complete for Source Area: 74446 (Autogenerated Action) |
|
| 9/27/2007 |
Update or Other Action |
Received Remedial Investigation Work Plan and Associated Plans for Operable Unit B-2 (OUB-2). The work plan details the field investigation procedures and Quality Control and Quality Assurance protocols for the upcoming Remedial Investigation planned for the 2008 Field Season. The Quality Assurance Project Plan (QAPP) was developed using the recently adopted Uniform Federal Policy on Quality Assurance Project Plans (UFP-QAPP). |
Guy Warren |
| 11/2/2007 |
Update or Other Action |
Submitted comments to the Navy on the OUB-2 RI work plan. In general the work plan provides adequate guidance to control the quality of the work proposed and comments were primarily editorial in nature. The investigation for MI-02 includes transect geophysical surveys and environmental media sampling for munitions constituents (MC). |
Guy Warren |
| 5/8/2008 |
Update or Other Action |
Submitted comments to the Navy on the Draft Final OUB-2 RI Work Plan received by the Department on 4-14-08. Comments focused on continued refinement of the work procedures and consistency throughout the various sections of the plan. |
Guy Warren |
| 6/11/2008 |
Site Characterization Workplan Approved |
Issued work plan approval letter for the Final OUB-2 RI Work Plan dated 6-6-08. The contractor is beginning to mobilize to Adak to begin the Remedial Investigation. |
Guy Warren |
| 10/8/2008 |
Update or Other Action |
The Department was notified that the Navy’s contractor had completed field work for the Remedial investigation and was demobilizing from Adak. The draft RI report is anticipated in early February 2009. |
Guy Warren |
| 7/14/2009 |
Update or Other Action |
Received the Draft “Remedial Investigation Report for OUB-2 Sites”. The report details the results of the RI conducted during the 2008 Field season. |
Guy Warren |
| 8/24/2009 |
Document, Report, or Work plan Review - other |
Submitted comment to the Navy on the Draft “Remedial Investigation Report for OUB-2 Sites”. In general CS staff agreed with the areas forwarded for evaluation in the Feasibility Study. A comment resolution meeting is scheduled for September 24-25, 2009. |
Guy Warren |
| 3/7/2012 |
CERCLA FS |
Submitted approval letter to the Navy for the Final OUB-2 Feasibility Study. MI-02 is included as part of Remedial Action Area #3 west (RAA-03 west) in the FS. The FS identifies the "Navy's preferred remedy" for the site as surface and subsurface removal of MEC to 2 feet below ground surface and LUC's. This remedy would remove MEC from the depth interval where MEC has been discovered historically. However this is based on a limited investigation. LUCs would be used to prevent human exposure to MEC that may remain if any anomalies are not resolved. The FS presents the Navy's preferred remedy and this may be adjusted based on EPA, ADEC, and community input during the Proposed Plan and development of the Record of Decision. |
Guy Warren |
| 3/13/2013 |
CERCLA Remedial Design/Remedial Action Plan Approved |
Submit approval letter for OUB-2 Non-Time Critical Removal Action (NTCRA) work plan and Quality Assurance Surveillance Plan (QASP). The plan address’s all five Remedial Action Areas identified if the RI as requiring remediation. At RAA-03 (which includes MI-02) the NTCRA will include surface and vegetation clearance, Digital Geophysical Mapping (DGM), and intrusive investigation of anomalies above the project anomaly selection threshold. Anomalies will be investigated to a depth of 2-ft, the Navy retains the ability to investigate deeper targets (as determined by the project team). Following the removal action restoration of the site will include backfilling all excavations to grade, removing roads, and erosion/sedimentation control. The NTCRA is scheduled to begin in April 2013, weather permitting. |
Guy Warren |
| 4/18/2014 |
Document, Report, or Work plan Review - other |
Submit approval letter for OUB-2 MEC-QAPP and QASP for 2014 fields season of the NTCRA. Work in 2014 will focus on the completion of RAA-02, RAA-03, and RAA-04. |
Guy Warren |
| 8/24/2014 |
Document, Report, or Work plan Review - other |
Submit approval letter for the AAR, 2013 Field Season, NTCRA, OUB-2 for various Remedial Action Areas (RAAs). Work at MI-02 (RAA-03) included surface clearance, DGM and Intrusive investigation of selected anomalies. 2013 work completes the remedial action for this site. Closure will be granted following the signing of the OUB-2 ROD. |
Guy Warren |
| 7/16/2017 |
Site Visit |
ADEC completed a three day site visit to Adak NAVFAC. All active sites were visited and current status discussed at length with NAVFAC representatives. Current field work activities were observed and noted. Work plan activities were proceeding as scheduled. No work plan deviations were evident. |
Darren Mulkey |
| 2/28/2025 |
DEC Non-Concur on Federal No Further Action Decision |
On 2/28/2025, DEC issued a non-concurrence for the Revised Draft OU B-2 ROD, which addresses 24 sites in Parcel 4. The responses to comment provided by the Navy do not adequately address DEC's concerns. Lacking a rewrite, DEC cannot concur with the Revised Draft (OU) B-2 ROD and it would not be productive to engage in additional rounds of response to comment on this current version of the ROD. Additional information is detailed in the 2/28/2025 letter and attached comment table. |
Jamie McKellar |
