| Action Date |
Action |
Description |
DEC Staff |
| 6/16/2005 |
Update or Other Action |
Received Final Archive Search Report for the Susitna Gunnery Range. Repost details the results of a historical records review, interviews, aerial photo interpretation, and a site visit to the former Anti Aircraft Range. Expolsive Ordnance Disposal has responded to two ordnance finds in the area since 2000 and several other finds historically. |
Guy Warren |
| 8/29/2005 |
Update or Other Action |
Submitted comment letter to the USACE regarding shortcomings in the Archival Search Report. Shortcomings include lack of supporting documentation, missing EOD incident reports, and specific information regarding the maximum range of AAA ordnance used at the site. The letter also notifies the USACE that this site is a priority to the State of Alaska due to the proposed Knik Arm Bridge and increased development in the area. |
John Halverson |
| 5/26/2006 |
Meeting or Teleconference Held |
Technical Project Planning Meeting held on this date to discuss the proposed Site Inspection of the Susitna Gunnery Range. |
Guy Warren |
| 8/23/2006 |
Update or Other Action |
Received Draft Technical Project Planning Memorandum & Associated Documentation. |
Guy Warren |
| 10/27/2006 |
Update or Other Action |
Received Final TPP Memorandum and Associated Documentation. |
Guy Warren |
| 10/30/2006 |
Update or Other Action |
Received Draft Site Specific Work Plan Addendum for the Site Inspection at the Susitna Gunnery Range. |
Guy Warren |
| 11/30/2006 |
Update or Other Action |
Submit letter to USACE providing ADEC comments on the Susitna Gunnery Range Site Inspection work Plan. Comments focused on the inadequacy of the technical approach, data gaps from the Archive Search Report, and specific comments on the work plan. |
Guy Warren |
| 1/10/2007 |
Update or Other Action |
Received Final Site Specific Work Plan Addendum for the Site Inspection at Susitna Gunnery Range. |
Guy Warren |
| 1/22/2007 |
Update or Other Action |
Upon review of the Final Work Plan the USACE had resolved the specific comments on the report but did not substantially change the Technical Approach. In addition the work plan proposed to travel through areas of the site that were found to be impassable during previous site visits. ADEC submitted letter to the USACE outlining the problems with their technical approach and the feasability of access these areas. |
Guy Warren |
| 4/10/2007 |
Update or Other Action |
Received Corespondence from the USACE contractor regarding ADEC comments on the Final Work Plan. Their response stated that the technical approach for this project was developed during the TPP meeting and was approved by all parties at that time. In addition the letter states that the Susitna Gunnery Range woudl advance to the RI/FS stage of the CERCLA process and any shortcomings with previous research would be addressed at that point. |
Guy Warren |
| 4/11/2007 |
Site Added to Database |
Site added to the database. |
Mitzi Read |
| 11/13/2007 |
Update or Other Action |
Received Draft Final Site Inspection Report for the Susitna Gunnery Range. |
Guy Warren |
| 11/28/2007 |
Meeting or Teleconference Held |
Attend TPP Meeting to discuss the results of the Site Inspection for the Susitna Gunnery Range. |
Guy Warren |
| 11/30/2007 |
Update or Other Action |
Submit ADEC Comments on the Draft Site Inspection Report for the Susitna Gunnery Range. ADEC does not support limiting the Munition Response Site boundaries within the FUDS Boundary based on existing site information. The remaining comments were primarily editorial in nature. |
Guy Warren |
| 4/4/2008 |
Update or Other Action |
The Department was notified that land clearing for a gravel pit is planned for the Summer of 2008 at Port MacKenzie which lies within the Susitna Gunnery Range. The purpose of the letter was to notify the Mat-Su Borough and tht Port that the area in quetion was part of a historic Anti-Aircraft Artillery (AAA) impact area and advise them of the potential of encountering Unexploded Ordnance (UXO) at the site. |
John Halverson |
| 4/22/2008 |
Meeting or Teleconference Held |
ADEC Staff attended a meeting with personnel from the USACE, Mat-Su Borough, and Port Mackenzie to discuss upcoming work at the port and potential impacts of UXO from the Susitna Gunnery Range. Projects planned for this year include road upgrades, clearing for the new prison site, and clearing several areas for gravel extraction. The USACE and the Port Director agreed to provide ordnance awareness training to their personnel and subcontractors working at the. The purpose of the training is to ensure site workers know how to identify a UXO hazard, avoidance procedures, and the proper reporting procedures in the event that an item is identified. |
Guy Warren |
| 5/28/2008 |
Site Visit |
Representatives of ADEC and the USACE conducted a site visit at the Susitna Gunnery Range. We met with Mark VanDongen (port director) and drove to areas of interest at the site. These areas included the new road realignment, new prison site, and areas being cleared for gravel extraction. Mr. VanDongen provided a briefing that detailed the ports plans for expansion in the area. The USACE project manager also provided a briefing on the community relations plan that is being prepared to notify landowners of the potential risk of UXO at the site. |
Guy Warren |
| 6/24/2008 |
Exposure Tracking Model On Hold |
|
Evonne Reese |
| 9/10/2008 |
Update or Other Action |
ADEC staff was notified on this date that an potential UXO item was identified at the Susitna Gunnery Range. On 8-15-08 a traffic flagger noticed a suspicous item in a ditch. In accordance with procedures for finding potential UXO the contractor contacted the Alaska State Troopers to respond to the item. In cases where military munitions are identified the AST must first be notified and they will request support from the appropriate EOD unit. However, in this case the responding officer picked up the item and disposed of it in a dumpster in Wasilla. The troopers will be contacted to discuss the appropriate response to military munitions. |
Guy Warren |
| 9/11/2008 |
Update or Other Action |
ADEC staff was notified that the USACE had awarded a contract to Zapata Engineering to conduct a Release Investigation at the Susitna Gunnery Range. The Scope of Work called for a ""Desktop RI"" and erroneously claimed that this approach had ADEC support. Upon review staff notified the USACE of their error, informed then that characterization of the site in accordance with a CERCLA compliant RI would indeed be required for this site. Staff requested that USACE modify the SOW to correct this error which USACE acknowledged. |
Guy Warren |
| 10/9/2008 |
Meeting or Teleconference Held |
ADEC staff met with the USACE AK district PM for the Susitna Gunnery Range to discuss the upcoming RI. The purpose of the meeting was to discuss possible investigation methodologies for the site. The USACE will be coordinating with their contractor to evaluate and prepare a plan to present at the upcoming Technicla Project Planning meeting. |
Guy Warren |
| 10/21/2009 |
Update or Other Action |
Staff attended a Technical P{roject Planning Meeting with the USACE, their contractors, and representatives of the major landowners in the area. The purpose of the meeting was to discuss USACE's plan to conduct a Remedial Investigation of 5 parcels within the site. The parcels selected were larger contiguous parcels that are expected to undergo development in the next several years. The investigation will consists of Digital Geophysical Mapping, Analog geophysics, intrusive investigation of selected geophysical anomalies, and environmental sampling for munition constituents. Work is planned for Spring/Summer of 2010 and a Draft RI work plan will be provided for ADEC review in December 2009. |
Guy Warren |
| 3/3/2010 |
Document, Report, or Work plan Review - other |
Submit comments to USACE on the Draft Remedial Investigation (RI)/Feasibility Study (FS) work plan for the Susitna Gunnery Range. Comments focused on the technical approach, Data Quality Objectives (DQOs), and the conceptual site model (CSM). |
Guy Warren |
| 6/8/2010 |
Update or Other Action |
Received responses to ADEC comments on the Draft RI/FS work plan. |
Guy Warren |
| 8/20/2010 |
Document, Report, or Work plan Review - other |
Submit comments to USACE on the Draft Final RI/FS work plan for the Susitna Gunnery Range. The majority of comments previously submitted on the Draft RI/FS work plan remain largely unaddressed. Comment letter requests meeting with USACE and their contractor to discuss outstanding comments. |
Guy Warren |
| 11/16/2010 |
Meeting or Teleconference Held |
Attend two day meeting with USACE and contractors to discuss ADEC comments on the Draft Final MMRP RI/FS work plan. |
Guy Warren |
| 3/16/2011 |
Document, Report, or Work plan Review - other |
Submit comments on February, 2011 version of the RI/FS work plan. Significant progress was made on the document since the last version. |
Guy Warren |
| 5/2/2011 |
CERCLA RI Plan Approved |
Submit approval letter to USACE for Final Susitna Gunnery Range MMRP RI/FS work plan. |
Guy Warren |
| 5/23/2011 |
Site Visit |
Site visit performed by ADEC and UXOPro to verify that field activites were being conducted in accordance with the work plan. Several recomendations were made to the contractor as a result of finding from the site visit. USACE's contractor follow up and addressed each issue satisfactorily. |
Guy Warren |
| 6/18/2012 |
Document, Report, or Work plan Review - other |
Submit comments on the Draft Final Susitna Gunnery Range MMRP RI report to USACE. In general the report adequately documented the Field work performed. Limited comments submitted. While evidence (Munitions debris, target debrs, etc.) was found to support the use of the site for Anti-Aircraft Artillery (AAA) practice no UXO was encounted in any investigation area. |
Guy Warren |
| 8/14/2012 |
CERCLA RI Report Approved |
Submit aproval letter to USACE for the Final MMRP RI report for the Susitna Gunnery Range. The Draft Feasibility Study Report is currently under development by USACE and their contractor. |
Guy Warren |
| 1/23/2013 |
CERCLA FS |
Submit comments to USACE on the Draft Feasibiltiy Study for the Susitna Gunnery Range. The FS evaluates 4 alternatives (no action, IC's, Surface clearance, and subsurface clearance) for the 5 MRS's that were investigated in the Remedial Investigation. While numerous munitions debris (MD) was identified, confirming the areas use for anti-aircraft artillery (AAA) training, no intact Munitions and Explosive of Concern (MEC) was recovered. In one MRS no MD was identified during investigation. The comments on the FS focused on the application of the CERCLA 9-criteria and the development of appropriate institutional controls (IC’s) for the site. The FS recommended IC’s and five year reviews for those MRS’s where MD was recovered. |
Guy Warren |
| 2/13/2013 |
Meeting or Teleconference Held |
Meeting with USACE and contractor to discuss ADEC comments on the Feasibility Study for the Susitna Gunnery Range FUDS. Comment discussion focused on the appropriate evaluation of the CERCLA 9 criteria and including adequate cost estimates to support the decisions for the site. Additional topics of discussion included the UXO found at the Travlos property, USACE's plans for the remainder of the site, and application of the IC recomendations in the FS to the remainder of the FUDS property. |
Guy Warren |
| 5/20/2013 |
CERCLA FS |
Submit approval letter to USACE for the Final Feasibility Study for the Susitna Gunnery Range FUDS. The FS identifies LUC's as the preferred remedy for MRS 1-4. No Action is recomended for MRS 5 as no evidence of munitions use was encountered. |
Guy Warren |
| 11/19/2013 |
CERCLA Proposed Plan |
Submit comments to USACE on the Draft Final Proposed Plan for the Susitna Gunney Range FUDS. Comments were compiled from legal and management review. Comments focused on providing a clear description of the alternatives and an accurate evaluation of the 9-criteria under CERCLA. |
Guy Warren |
| 12/9/2014 |
Update or Other Action |
Submit comments to USACE on the Decision Documents (DD) for MRS-06 and MRS-08 of the Susitna Gunnery Range. The DD for MRS-08 recommend No further Munitions Response Action. No evidence of MEC use was identified at MRS-08. The DD for MRS-06 recommends Land Use Controls (LUCs) to address outstanding MEC risk at MRS-06. Munitions Debris was identified in MRS-06 confirming the sites use for firing of anti-aircraft artillery. Comments focused on the application, enforcement, and adequacy of the LUC's proposed. |
Guy Warren |
| 5/22/2015 |
CERCLA ROD Approved |
Submit approval letter for the Decision Document for MRS-08. No evidence of MEC use or disposal was identified for this area. MRS-08 is a small portion of the Susitna Gunnery Range FUDS. |
Guy Warren |
| 12/1/2015 |
CERCLA ROD Approved |
Received Final ROD for MRS-06 on October 9, 2015. Submit letter to USACE acknowledging that we agreed that LUCs are the appropriate remedy for the site but that the LUC program described in the Decision Document was not sufficient. Further refinement of the LUC program for this site will take place during Remedial Design. |
Guy Warren |
| 5/21/2021 |
Institutional Control Periodic Reporting |
"Final Land Use Controls Implementation Plan, Project 06 Susitna Gunnery Range Munitions, Formerly Used Defense Site (F10AK0255-06), Matanuska-Sustina Borough, Alaska, April 2021". The primary objective of this project is to implement Land Use Controls (LUCs) at the Susitna Gunnery Range Formerly Used Defense Site (FUDS), property number F10AK0225, Alaska Department of Environmental Conservation (ADEC) File number 2256.38.001. LUCs shall be implemented for Military Munitions Response Program Project 06, Susitna Gunnery Range Munitions, also known as Munitions Response Site (MRS) #06, Trailhead, Terminal, and Bridge Areas; herein referred to as “MRS-06”. MRS-06 is located within the Susitna Gunnery Range FUDS (Project Number F10AK022506) in Matanuska-Susitna Borough, Alaska.
At MRS-06, prior site activities have resulted in the potential presence of munitions and explosives
of concern (MEC). The FUDS program follows the environmental investigation and cleanup procedures of the Comprehensive Environmental Response, Compensation, and Liability Act, as amended by the Superfund Amendments and Reauthorization Act. The U.S. Department of Defense is responsible for evaluating and cleaning up environmental contamination and munitions at FUDS properties under the Defense Environmental Restoration Program, while USACE manages the evaluation and cleanup of these properties. The Remedial Action Objective (RAO) for MRS-06 is to limit or mitigate an interaction between a receptor and potential MEC items remaining in the MRS. The remedy selected in the Decision Document for MRS-06 is LUCs
(USACE 2015), as detailed below. LUCs are restrictions or controls on a property that protect human health and the environment by limiting exposure potential to chemical and/or physical hazards. |
Darren Mulkey |
| 8/25/2021 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 75365 name: auto-generated pm edit FUDS Susitna Gunnery Range |
Darren Mulkey |
| 6/9/2022 |
Document, Report, or Work plan Review - other |
ADEC provided review comments for the "Draft Environmental Covenant – Susitna Gunnery Range (MRS-06)" Undated, to the U.S. Army Corp of Engineers (USACE). The draft environmental covenant was received at the ADEC office on March 2, 2022. Review comments and the latest updated environmental covenant template were sent to USACE. Additional review of the covenant will be needed upon receipt of the covenant revisions. |
Erica Blake |
| 9/13/2022 |
Document, Report, or Work plan Review - other |
ADEC provided responses to comments for the Draft Environmental Covenant – Susitna Gunnery Range (MRS-06) Undated to the U.S. Corp of Engineers (USACE). Most responses to the comments were accepted, however ADEC provided additional comments which will require additional revisions to the document text. After the additional comments are responded to, ADEC requested an updated redlined version of the document be provided. |
Erica Blake |
| 9/27/2022 |
Document, Report, or Work plan Review - other |
ADEC provided review comments for the Land Use Control Implementation Summary Report, Susitna Gunnery Range, Formerly Used Defense Sites, Military Munitions Response Program Project 06, Matanuska-Susitna Borough, Alaska (dated August 2022) to the U.S. Corp of Engineers. The document describes land use controls that have been implemented in the last year for the Susitna Gunnery Range Munitions Response Site (MRS) #06. |
Erica Blake |
| 10/6/2022 |
Document, Report, or Work plan Review - other |
ADEC provided responses to comments for the Land Use Control Implementation Summary Report, Susitna Gunnery Range, Formerly Used Defense Sites, Military Munitions Response Program Project 06, Matanuska-Susitna Borough, Alaska (dated August 2022) to the U.S. Corp of Engineers. All responses were accepted. One response was noted with a comment where ADEC requested removal of Appendix D from the report. Appendix D was going to show an environmental covenant example, however ADEC and USACE are still working on agreeing to a format and style, and to be able to finalize the report it was discussed and agreed that it would be simpler to just remove the example. A clean, final version of the document was requested for conducting a final comment backcheck prior to providing approval. |
Erica Blake |
| 10/26/2022 |
Meeting or Teleconference Held |
ADEC staff discussed with U.S. Corp of Engineers (USACE) staff the site history and path forward for completing environmental covenants as part of completing the remedy described in the September 2015 Decision Document. |
Erica Blake |
| 11/7/2022 |
Meeting or Teleconference Held |
ADEC staff met with USACE staff to discuss the 2015 Decision Document and some possible paths forward for completing the environmental covenants for the Munitions Response Site (MRS) #06 within the Susitna Gunnery Range. |
Erica Blake |
| 11/18/2022 |
Document, Report, or Work plan Review - other |
ADEC provided approval for the "Final Land Use Control Implementation Summary Report, Susitna Gunnery Range, Formerly Used Defense Sites, Military Munitions Response Program Project 06, Matanuska-Susitna Borough, Alaska" (dated November 2022) to the U.S Corp of Engineers (USACE). The document described how the land use controls have been implemented at the Susitna Gunnery Range and whether they were effective or not. This document was approved with the expectation that ADEC and USACE will continue discussions to determine a path for completing 20 environmental covenants for the MRS #06 site within the Susitna Gunnery Range site. |
Erica Blake |
| 1/13/2023 |
Update or Other Action |
DEC provided the U.S. Corp of Engineers (USACE) with a letter describing DEC's understanding of what was discussed at previous meetings and what the path forward for implementing the remedy outlined in the "Decision Document Former Susitna Gunnery Range FUDS Susitna Gunnery Range Munitions, Munitions Response Site #06 Trailhead, Terminal, and Bridge Areas, Southcentral Alaska," dated September 2015. An evaluation of the protectiveness of the remedy will be completed during the forthcoming Five-Year Review (anticipated February/March 2023). |
Erica Blake |
| 8/17/2023 |
Document, Report, or Work plan Review - other |
DEC provided review comments for the First Five-Year Review for Susitna Gunnery Range Project 06 Matanuska-Susitna Borough, Alaska, Draft (dated June 2023) to the U.S. Army Corp of Engineers (USACE). There are currently no restrictions in place at this site, and DEC disagrees the current remedy is short-term protective. Until restrictions on the site can be implemented, the remedy should be considered protectiveness deferred. |
Erica Blake |
| 9/21/2023 |
Document, Report, or Work plan Review - other |
DEC provided responses to comments for the "First Five-Year Review for Susitna Gunnery Range Project 06 Matanuska-Susitna Borough, Alaska, Draft Dated June 2023" to the U.S. Army Corp of Engineers. DEC disagrees with the protectiveness determination of 'short-term protective' and provided responses back recommending the determination be revised to 'protectiveness deferred.' Until USACE obtains concurrence from affected landowners, and obtains concurrence for restrictions to be placed, the remedy described in the 2015 Decision Document has not been fully implemented. |
Erica Blake |
| 12/12/2023 |
Document, Report, or Work plan Review - other |
DEC provided review comments for the 2022-2023 Land Use Controls Implementation Report Susitna Gunnery Range Formerly Used Defense Sites, Military Munitions Response Program Project 06, Draft Dated November 2023 to the U.S. Army Corp of Engineers. The draft report summarized performance and status of land use controls. Period of review was June 2022 through June 2023. |
Erica Blake |
| 1/3/2024 |
Document, Report, or Work plan Review - other |
DEC provided responses to comments for the "2022-2023 Land Use Controls Implementation Report Susitna Gunnery Range Formerly Used Defense Sites, Military Munitions Response Program Project 06, Draft (dated November 2023) to the U.S. Army Corp of Engineers (USACE). DEC recommends USACE inspect the sign installed at the trailhead to confirm it is still in good condition and functioning as the 2015 Decision Document remedy intends. |
Erica Blake |
| 2/29/2024 |
Document, Report, or Work plan Review - other |
DEC provided approval for the "2022-2023 Land Use Controls Implementation Report Susitna Gunnery Range Formerly Used Defense Sites, Military Munitions Response Program Project 06, Final (dated January 2024)" to the U.S. Army Corp of Engineers. The document summarizes the performance and status of land use controls at the site. An inspection of the sign at the trailhead off Point Mackenzie Road was inspected in response to a comment made about the need for annual inspections of the sign to ensure it is functioning as intended. |
Erica Blake |
| 2/29/2024 |
Document, Report, or Work plan Review - other |
DEC provided approval for the "First Five-Year Review (FYR) for Susitna Gunnery Range Project 06, Matanuska-Susitna Borough, Alaska, Final (dated December 2023)." This FYR presents the methods, findings, and conclusions of the remedy selection, and identifies any issues found during review of the remedy implementation. The remedy was determined to be protective in the short-term because the remedy has not been fully implemented. DEC and U.S. Army Corp of Engineers staff will work together to ensure the remedy is fully implemented. |
Erica Blake |
