DRAFT - - PDF document

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Table of Contents

List of Tables…………………………………………………………………………….…..…… List of Figures………………………………………………………………………...…..……… List of Appendices…………………………………………………………………………...…... Acronyms and Abbreviations…………………………………………………………………… Definitions…………………………………………………………………………………….….. iii iii iii v viii 1 INTRODUCTION .................................................................................................................... 1 1.1 Purpose and Scope ......................................................................................................... 2 1.2 Approval Documents ....................................................................................................... 3 1.3 Project Personnel and Subcontractors ............................................................................ 3 1.4 Health and Safety ............................................................................................................ 4 1.5 Report Organization ........................................................................................................ 4 1.6 Applicable or Relevant and Appropriate Requirements ................................................... 5 2 SITE BACKGROUND ............................................................................................................. 5 2.1 Site Location .................................................................................................................... 5 2.2 Property Transfer and Public Access .............................................................................. 5 2.3 Reuse .............................................................................................................................. 6 2.3.1 Vegetation and Habitat Type .................................................................................... 6 2.4 Regulatory Status ............................................................................................................ 7 2.5 Site Features and History of Military Munitions Use ........................................................ 8 2.6 Summary of Munitions and Explosives of Concern-Related Activities and Data Collected Prior to the Remedial Action ....................................................................................................... 9 3 OVERVIEW OF REMEDIAL ACTION .................................................................................... 9 3.1 Remedial Action Objectives ............................................................................................. 9 3.2 MEC Remedial Action ..................................................................................................... 9 3.2.1 Remedial Action Chronology .................................................................................... 9 3.2.2 Variations from the Site-Specific Work Plan ........................................................... 10 3.2.3 Summary of Remedial Action Methods .................................................................. 10 4 SITE PREPARATION ........................................................................................................... 11 4.1 Community Relations .................................................................................................... 11 4.2 Site Security .................................................................................................................. 12 4.3 Vegetation Clearance .................................................................................................... 12 4.3.1 Burn Units ............................................................................................................... 13 4.3.2 Cut Units ................................................................................................................. 13 4.4 Debris and Target Removal ........................................................................................... 14 4.5 Grid and Border Survey ................................................................................................. 14 5 SURFACE MEC REMOVAL ................................................................................................. 14 6 DIGITAL GEOPHYSICAL MAPPING ................................................................................... 15 6.1 Instrumentation .............................................................................................................. 15 6.2 Data Acquisition Procedures ......................................................................................... 16 6.3 Geophysical System Verification and Daily Functional Tests ........................................ 16 6.4 Data Processing ............................................................................................................ 17 6.5 Measurement Quality Objectives ................................................................................... 18

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ii 7 SUBSURFACE MUNITIONS AND EXPLOSIVES OF CONCERN REMOVAL .................... 19 7.1 Analog Subsurface Munitions and Explosives of Concern Removal ............................. 21 7.2 Digital Subsurface Munitions and Explosives of Concern Removal .............................. 21 7.2.1 Digital Geophysical Mapping .................................................................................. 21 7.2.2 Anomaly Selection .................................................................................................. 22 7.2.3 Anomaly Reacquisition ........................................................................................... 22 7.2.4 Intrusive Target Investigation and Verification ....................................................... 22 8 QUALITY CONTROL/QUALITY ASSURANCE .................................................................... 23 8.1 Quality Control ............................................................................................................... 23 8.1.1 Analog Quality Control ........................................................................................... 23 8.1.2 Digital Geophysical Mapping Quality Control ......................................................... 24 8.2 Quality Assurance ......................................................................................................... 26 8.2.1 Analog Quality Assurance ...................................................................................... 27 8.2.2 Digital Geophysical Mapping Quality Assurance .................................................... 27 8.2.3 Corrective Action Requests .................................................................................... 27 9 MUNITIONS AND EXPLOSIVES OF CONCERN AND MUNITIONS DEBRIS REMOVAL 27 9.1 Munitions and Explosives of Concern Removal ............................................................ 27 9.2 Munitions Debris Removal ............................................................................................. 27 9.3 Detonation of Munitions and Explosives of Concern ..................................................... 28 9.4 Disposition of Munitions Debris ..................................................................................... 28 9.5 Munitions and Explosives of Concern and Munitions Debris Removal Summary ......... 28 10 MUNITIONS CONSTITUENTS CHARACTERIZATION .................................................... 29 10.1 Previous Site Characterization ...................................................................................... 29 10.2 Reconnaissance ............................................................................................................ 30 10.3 Site Characterization ..................................................................................................... 30 10.4 Observations of Evidence of Potential Soil Contamination............................................ 30 11 ENVIRONMENTAL PROTECTION ................................................................................... 30 11.1 Description of Impacts and Mitigation Measures ........................................................... 30 11.2 Biological Monitoring ..................................................................................................... 32 12 PROTECTIVENESS ASSESSMENT ................................................................................ 33 13 REFERENCES .................................................................................................................. 34

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List of Tables

Table 1 MEC Items Recovered Prior to Remedial Action Table 2 Major Event Milestones, BLM Area B Remedial Action 2017-2019 Table 3 MEC Items Recovered During Remedial Action 2017-2019 Table 4 Subsurface MEC Removal Summary 2017-2019

List of Figures

Figure 1 Former Fort Ord and BLM Area B Location Figure 2 BLM Area B Sub-Areas Figure 3 BLM Area B Units and Remedial Work Areas Figure 4 MEC Removed Prior to Remedial Action Figure 5 Vegetation Removal Figure 6 Surface MEC Removal Grids Figure 7 Surface MEC Removed During Remedial Action Figure 8 Munitions Debris Removed During Remedial Action Figure 9 DGM Survey Results Figure 10 Subsurface Work Areas Excluding Roads and MEC Removed During Remedial Action Figure 10A Unit B Subsurface Work Areas and MEC Removed During Remedial Action Figure 10B Unit B-2A Subsurface Work Areas and MEC Removed During Remedial Action Figure 10C Units B-3E and B-3E-NE Subsurface Work Areas and MEC Removed During Remedial Action Figure 10D Units B-3W and C Subsurface Work Areas and MEC Removed During Remedial Action Figure 11 Overview of Remedial Action Completed on Roads Figure 11A1 Addington Road Remedial Action on Roads Figure 11B1 Barloy Canyon Road Remedial Action on Roads Figure 11E1 Eucalyptus Road Remedial Action on Roads Figure 11E2 Eucalyptus Road Remedial Action on Roads Figure 11EMG1 East Machine Gun Flats Road Remedial Action on Roads Figure 11EMG2 East Machine Gun Flats Road Remedial Action on Roads Figure 11H1 Hennekens Ranch Road Remedial Action on Roads Figure 11H2 Hennekens Ranch Road Remedial Action on Roads Figure 11L1 Little Moab Road Remedial Action on Roads Figure 11L2 Little Moab Road Remedial Action on Roads Figure 11L3 Little Moab Road Remedial Action on Roads Figure 11P1 Parker Flats Road Remedial Action on Roads Figure 11P2 Parker Flats Road Remedial Action on Roads Figure 11P3 Parker Flats Road Remedial Action on Roads

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iv Figure 11WG1 Watkins Gate Road Remedial Action on Roads Figure 11WG2 Watkins Gate Road Remedial Action on Roads Figure 11WGS1 Watkins Gate Spur Remedial Action on Roads Figure 11WGS2 Watkins Gate Spur Remedial Action on Roads Figure 11WMG1 West Machine Gun Flats Road Remedial Action on Roads Figure 11WMG2 West Machine Gun Flats Road Remedial Action on Roads Figure 11WMG3 West Machine Gun Flats Road Remedial Action on Roads Figure 12 Overview of MEC Recovered on the Roads Figure 13 Munitions with Sensitive Fuzes Removed During Remedial Action

List of Appendices

Appendix A Bureau of Land Management Area B Technical Memorandums Appendix B Bureau of Land Management Area B Track 2 Ponds Geophysical Anomaly Investigation Technical Information Paper Appendix C Field Work Variances Appendix D Unit A Technical Information Paper Appendix E Community Outreach Appendix F Example of Digital Geophysical Mapping Data Forms Appendix G Subsurface Munitions and Explosives of Concern Removal Quality Assurance and Quality Control Results Appendix H DD Form 1348-1A (Munitions Debris and Metal Debris Documentation) Appendix I Explosives Accountability Appendix J Impact Area MRA and BLM Area B Structure Demolition and Removal Technical Information Paper

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B-6 B-5 B-5 B-3 B-1 MRS-16 B-2 B-4 B-3A B-2A

Figure 2 BLM Area B Sub-Areas BLM Area B Remedial Action Report 2017-2019 Former Fort Ord, California

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1,600 3,200 800

Feet BLM Area B Boundary Impact Area MRA

Area B Sub-Areas

B-1 B-2 B-2A B-3 B-3A B-4 B-5 B-6 MRS-16

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I m p a c t A r e a M R A I m p a c t A r e a M R A BLM Area B

B-2A B-3E B-3W B-3E-NE A C B

Figure 3 BLM Area B Units and Remedial Work Areas Remedial Action Report 2017-2019 BLM Area B Former Fort Ord, California

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1,000 2,000 500

Feet

BLM Area B Units and Remedial Work Areas as Identified in the Site Specific Work Plan

Remedial Work Grid Remedial Work on Roads Burn Unit Cut Unit BLM Area B Boundary Impact Area MRA

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H E NNEKENS RANCH RD

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B-2A B-3E B-3W B-3E-NE A C B

Figure 9 DGM Survey Results BLM Area B Remedial Action Report 2017-2019 Former Fort Ord, California

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1,000 2,000 500

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Pond/Subsurface anomaly investigation in 2018 Remedial Work Area (as identified in the SSWP) BLM Area B Unit BLM Area B Boundary Impact Area MRA

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Figure 10 Subsurface Work Areas and MEC Removed During Remedial Action BLM Area B Remedial Action Report 2017-2019 Former Fort Ord, California

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Figure 12 Overview of MEC Removed from Roads BLM Area B Remedial Action Report (2017-2019) Former Fort Ord, California

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