DRAFT FINAL ACTION PLAN FOR THE CAMP EDWARDS IMPACT AREA GROUNDWATER QUALITY STUDY MASSACHUSETTS MILITARY RESERVATION CAPE COD, MASSACHUSETTS Volume I- Text Prepared for NATIONAL GUARD BUREAU ARLINGTON, VIRGINIA pursuant to THE UNITED STATES ENVIRONMENTAL PROTECTION AGENCY, REGION I Administrative Order SDWA 1-97-1019 Prepared by ENGINEERING TECHNOLOGIES ASSOCIATES, INC. 3458 Ellicott CenterDrive, Suite 101 Ellicott City, Maryland May 1997 Table ofContents TABLE OF CONTENTS ii LIST OF FIGURES iii LIST OF TABLES iv LIST OF ACRONYMS AND ABBREVIATIONS v INTRODUCTION 1.0 1 1.1 Background 1 1.2 Overview 3 1.3 Objectives ofthe Investigation 6 1.4 Environmental Concerns atthe Training Range and Impact area 6 1.5 Scope ofthe Action Plan 9 2.0 BACKGROUND AND ENVIRONMENTAL SETTING 1 2.1 Site Location and History 10 2.2 Site Description 10 2.2.1 Physiography and Surface Waters 13 2.2.2 Geology 15 2.2.3 Hydrogeology 18 2.3 Previous Investigations 20 2.4 Site Conceptual Model 29 2.4.1 Site Hydrogeology 30 2.4.2 Fate and Transport ofMunitions-Related Materials 33 2.4.2.1 Explosive Compounds 33 2.4.2.2 Metals 35 2.4.2.3 Distribution ofMunition-relatedmaterials to the Environment 36 2.4.2.4 Fate andTransport Summary 37 2.4.3 Summary ofthe Conceptual Model 38 TASK EVALUATION AND SCOPE 3.0 41 3.1 Investigation 43 3.1.1 Archives Search 46 3.1.2 Review ofAerial Photographs 47 3.1.3 Unexploded Ordnance Survey 48 3.1.4 Surface Water, Soil and Sediments Sampling 48 3.1.4.1 Surface Waterand Sediments Sampling 48 3.1.4.2 Soil Sampling 48 3.1.4.3 Groundwater Sampling 50 3.1.4.4 Storm Water Sampling 50 3.1.5 Investigation Well Installation 53 3.1.6 Elevation and Location Survey ofInvestigation wells 55 3.1.7 Well Site Clean-up and Restoration 55 3.1.8 Water Level Measurements 55 3.1.9 AquiferTesting 56 3.2 Preliminary Risk Evaluation 56 3.3 Follow-on Actions 56 Digitized by the Internet Archive 2013 in http://archive.org/details/draftfinalactionOOunse 11 1 111 3.3.1 Risk Assessments 57 3.3.2 Response Plans 57 3.3.3 Installation Response Program (IRP) Investigation Referral 57 3.3.4 Long Term Monitoring Program 58 4.0 SAMPLING AND ANALYSIS 59 4.1 Sampling Program 59 4.1.1 Field Screening 59 4.1.2 Well Installation 59 4.1.4 Surface Water/Sediment Sampling 62 4.1.4 Soil Sampling 63 4.1.5 Water Level Measurements 65 4.1.6 Groundwater Sampling 67 4.1.7 Sample Designations and Identification 68 4.1.8 Waste Handling 69 4.1.9 Health and Safety Monitoring 69 4.1.10 Hydrogeologic Characterization 70 4.1.11 Quality Control Samples 70 4.1.11. Field andTrip Blanks 70 4.1.11.2 EquipmentRinsates 70 4.1.11.3 Field Duplicates 71 4.2 Analytical Program 71 4.2.1 Field Screening 72 4.2.2 Laboratory Analysis 72 4.2.3 Data Management and Evaluation 72 4.2.4 Well Head Protection AreaReview 72 5.0 DECONTAMINATION AND WASTE DISPOSAL 75 5.1 Decontamination 75 5.2 Waste Disposal 76 5.2.1 Personal Protective Equipment(PPE) 77 5.2.2 Soil 77 5.2.3 Water 78 6.0 SITE-SPECIFIC QUALITY CONTROL AND HEALTH AND SAFETY PLAN 79 6. Quality Assurance Project Plan 79 6.2 Health and Safety Plan 79 PROJECT MANAGEMENT AND SCHEDULE 7.0 8 7. Project Management 8 7.1.1 Organizational Structure 8 7.1.2 Subcontractors 84 7.2 Schedule 84 7.2.1 Overall Project Schedule 84 7.2.2 Deliverables 84 8.0 RECORD KEEPING AND REPORTING 87 8.1 Record Keeping 87 8.2 Reporting 89 9.0 REFERENCES 92 in 6 11 List ofFigures Figure 1-1 Site Location Map 4 Figure 2-1 Training range and Impact Area 1 Figure 2-2 Gun and Mortar Positions, Ranges, and Impact Area 12 Figure 2-3 Physiographic Map ofthe Training Range and Impact Area 14 Figure 2-4 Area Geology 1 Figure 2-5 Geologic Cross-Sections ofthe Study Area 17 Figure 2-6 Groundwater Elevation Contours 19 Figure 2-7 Other Sources in the Study Area 2 Figure 2-8 Areas ofInterest based on Aerial Photographs 23 Figure 3-1 Proposed Monitoring Wells Location Map 44 Figure 3-2 Soil, Surface Water, and Sediment Sampling Locations 45 Figure 3-3 Storm water sampling locations 51 Figure 4-1 Typical Soil Sampling Grid 66 Figure 4-2 Zone II Wellhead Protection Areas 74 Figure 7-1 Organizational Chart 83 Figure 7-2 Proposed Schedule 86 IV List ofTables Table 4-1 Sample Types, Numbers and Analytes 60