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Site Report: Adak LJ-01 Lake Jean Ammo Complex

Site Name: Adak LJ-01 Lake Jean Ammo Complex
Address: OU B-1, Adak Naval Air Facility, Adak, AK 99546
File Number: 2501.38.005
Hazard ID: 3542
Status: Cleanup Complete - Institutional Controls
Staff: Jamie McKellar, 9074515175 jamie.mckellar@alaska.gov
Latitude: 51.914056
Longitude: -176.633056
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.

Problems/Comments

Ordnance or ordnance-related problems. This area is a small 55- by 60-meter rectangular AOC encompassing approximately 0.8 acre. This area was investigated in both 1999 and 2000. During the 1999 SI, this area was surveyed as part of the total LJ sector. AO (flares) was found in the AOC along with a single piece of UXO (hand grenade). During the RI in 2000, this area was investigated a second time using the prescribed search pattern for an AOC containing lone ordnance finds. Two hundred five targets were identified and intrusively investigated. Twenty-one targets were identified as UXO, primarily MK2 hand grenades. Seventy-two targets were identified as AO including such items as small arms ammunition, PD fuzes, 37-mm projectiles, 50-mm mortars rockets flares, and practice ordnance. Further work was performed in 2001, yielding additional small arms debris and OE Scrap. 2004 fieldwork was to finish off the site by creating 15 meter buffers around the outside of the work done in 1999, 2000, and 2001. Investigation performed over 2001 data yielded four additional UXO items. When the areas within the 2000 and 2001 data were revisited, numerous UXO and AO items were discovered, lending to some doubt about the effectiveness of remediation in this area. Remediation of this site was not completed in the 2004 field season.

Action Information

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
12/11/2001 Record of Decision ROD signed on this date Elim Yoon
12/28/2001 Institutional Control Record Established Institutional Control Established. Includes: Requirements for Inspections and Reporting, requirements for Education Program, and requirements for Sign Inspections. See document “Adak Island Institutional Control Management Plan, Final Edition, December 2001, Prepared by: Engineering Field Activity, Northwest.” Elim Yoon
6/15/2004 Cleanup Plan Approved Remedial Action Design Work Plan approved for this site for the 2004 remedial season. Jason Weigle
8/31/2004 Update or Other Action Remediation begun in 2002; slated to be completed in 2004 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
10/22/2004 Update or Other Action Due to additional UXO being discovered within areas that supposedly had been finished in 2000 and 2001, remediation of this site was not completed in the 2004 field season. Jason Weigle
1/3/2005 Update or Other Action Draft After Action Report for 2004 field season received. Jason Weigle
2/3/2005 Update or Other Action Completed review of draft After Action Report for 2004 field season; submitted comments to the Navy. 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 2501.38.005 assigned on this date. Jason Weigle
9/20/2006 Update or Other Action Following a Navy request for Depratment recomendations on Site LJ-01 DEC sent a letter requesting additional Clearence work for munitions site LJ-01. During 2004 field work an area with construction debris was identified and designated an “exception area”. This area was not completed during the 2004 field season as the equipment and time were not available to complete clearance. As work proceeded in 2004 problems were identified with the 2000 and 2001 field work. As a result the geophysical anomalies identified in the earlier field work were re-investigated and additional ordnance was identified. Work is scheduled for the 2007 Field Season. Guy Warren
5/2/2007 Update or Other Action Received Draft MEC Clearance Work Plan Lake Jean (LJ-01) and Rifle Grenade Range (RG-01) on this date. The work plan details planned MEC clearence activities for the 2007 Field Season. Guy Warren
5/11/2007 Update or Other Action Submitted comments on the Draft MEC Clearance Work Plan for LJ-01 and RG-01. At the request of the Navy an expedited review was conducted. However, numerous deficiencies with the planning document were identified and the document was inadequate to control field work. Guy Warren
5/17/2007 Meeting or Teleconference Held Phone conference with the Navy and contractors to discuss RG-01/LJ-01 work plan. The Navy acknowledged work plan deficiencies and was determining how to salvage field season. Guy Warren
5/18/2007 Update or Other Action The Navy notified the Department that they were postponing the remediation efforts at RG-01 and LJ-01 till 2008. Guy Warren
8/3/2007 Exposure Tracking Model Ranking Intitial Ranking Complete for Source Area: 74517 (Autogenerated Action)
1/25/2008 Update or Other Action Received Draft "MEC Clearance Work Plan and Associated Plans LJ-01 and RG-01" from the Navy. Guy Warren
6/11/2008 CERCLA Remedial Design/Remedial Action Plan Approved Submitted work plan approval letter to the Navy for the "MEC Clearance Work Plan for LJ-01 and RG-01". The letter requested several minor clarifications to be implemented using the FCR process. The remaining ADEC comments were addressed. Guy Warren
10/6/2009 Document, Report, or Work plan Review - other Submitted comments to the Navy on the Draft "After Action Report for 2008 Field Seasons for LJ-01 and RG-01". The document was received by the department on August 26, 2009. In general the AAR was of high quality and comments focused on correcting inconsistencies and other minor errors. Guy Warren
11/3/2009 Meeting or Teleconference Held Attended comment resolution and AOC certification at contractor's offices in Tampa FL. The meeting focused on resolving comments from EPA and ADEC to ensure that the final AAR adequately addressed agency comments. In addition the project team reviewed a sampling of the project qc documentation to ensure that all relevant requirements had been met and ensure that documentation was adequate to demonstrate conformance to requirements. The contractor's documentation was complete, well organized, and the remedial action at LJ-01 was determined to have meet the remedial action objectives. Guy Warren
5/3/2010 Document, Report, or Work plan Review - other Received Final "After Action Report for 2008 Field Season for LJ-01 and RG-01. All comments had been addressed. This completes the OUB Record of Decision Remedial Action Requirements for this site. The Site will be included in a Remedial Action Completion Report at a later date to document the completion of remedial actions at OUB-1. However as of this date the site status will be identified as Cleanup Complete with IC's. IC's were established island wide to address remaining UXO hazards on Adak and includes Ordnance Education/Awareness training. Guy Warren
9/14/2010 Cleanup Complete Determination Issued Submit closure letter to US Navy. Site status changed to "Cleanup Complete with IC's". Guy Warren

Contaminant Information

Name Level Description Media Comments
UXO Inactive Range Ordnance Management- 46.03.100(e)(7) Soil
UXO Other Soil Remedial actions at this site included digital geophysical mapping followed by intrusive investigation of selected anomalies. Anomalies were cleared to a maximum depth of 4 feet. Due to uncertainties associated with UXO detection and removal IC's have been established to address any residual risk from encountering UXO.

Control Type

Type Details
Ordnance Awareness Program An Ordnance Awareness Program was instituted as part of the OU B-1 Record of Decision.

Requirements

Description Details
Ordnance Awareness Program The Ordnance Awareness Program is a set of educational tools that are used to teach people about ordnance hazards on Adak. Annual evaluation of effectiveness included in the IC Inspection Report.
Ordnance Awareness Program This is an ongoing program managed by the Navy. The Navy is currently working on improving the program to include formal requirements to ensure the program continues to function. These efforts are documented annually in the IC Site Inspection Reports and will be evaluted during the 5-year Review process for adequacy.

There are no documents for this site report.

No associated sites were found.

Missing Location Data

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State of Alaska Department of Environmental Conservation

P.O. Box 111800
Juneau, AK 99811-1800
Phone: 907-465-5066
Fax: 907-465-5245
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