D S TE TAT NI E U S E · · N V Camp Abbot FUDS I R Y O C N N Preliminary Assessment/Site Inspection Report M E E G N A TA N L P TIO ROTEC TDD: 01-08-0006 EPA Region X EPA Contract: 68-S0-01-02 START April 2005 Superfund Technical Assessment and Response Team Weston Solutions, Inc. · 190 Queen Anne Avenue North · Seattle, WA 98109-4926 05-0022 Cover.ai TABLE OF CONTENTS Section Page 1. INTRODUCTION ........................................................................................................ 1-1 2. SITE BACKGROUND................................................................................................. 2-1 2.1 SITE DESCRIPTION AND BACKGROUND INFORMATION........................ 2-1 2.1.1 Site Location ........................................................................................ 2-1 2.1.2 Site Description.................................................................................... 2-2 2.1.3 Site Ownership ..................................................................................... 2-2 2.1.4 Site Operations and Source Characteristics ........................................... 2-2 2.2 SITE CHARACTERIZATION ........................................................................... 2-3 2.2.1 Previous Site Investigations.................................................................. 2-3 2.3 WASTE SOURCE AREAS AND SITE CONCERNS ........................................ 2-4 2.3.1 Known and Potential Source Areas....................................................... 2-5 2.3.2 Potential Receptors............................................................................... 2-5 3. FIELD ACTIVITIES AND ANALYTICAL PROTOCOL ........................................ 3-1 3.1 SAMPLING DESIGN (TYPES, NUMBERS, AND RATIONALE).................... 3-1 3.1.1 Potential Sources.................................................................................. 3-2 3.1.2 Target Samples..................................................................................... 3-2 3.1.3 Background Samples ............................................................................ 3-3 3.2 SAMPLING METHODS.................................................................................... 3-3 3.2.1 Surface Soil Sampling .......................................................................... 3-3 3.2.2 XRF Screening Methodology ............................................................... 3-3 3.2.3 Sediment Sampling............................................................................... 3-4 3.2.4 Surface Water Sampling ....................................................................... 3-4 3.2.5 Groundwater Sampling......................................................................... 3-4 3.3 ANALYTICAL PROTOCOL ............................................................................. 3-4 3.4 SAMPLE GLOBAL POSITIONING SYSTEM LOCATIONS ........................... 3-5 3.5 INVESTIGATION DERIVED WASTE ............................................................. 3-5 3.6 SAMPLE HANDLING AND CUSTODY .......................................................... 3-5 3.7 SAMPLE IDENTIFICATION ............................................................................ 3-5 4. QUALITY ASSURANCE/QUALITY CONTROL..................................................... 4-1 4.1 SATISFACTION OF DATA QUALITY OBJECTIVES AND CRITERIA FOR MEASUREMENT DATA.......................................................................... 4-2 4.2 QUALITY ASSURANCE/QUALITY CONTROL SAMPLES........................... 4-2 4.3 PROJECT-SPECIFIC DATA QUALITY OBJECTIVES.................................... 4-2 4.3.1 Precision............................................................................................... 4-3 4.3.2 Accuracy .............................................................................................. 4-3 4.3.3 Representativeness ............................................................................... 4-4 4.3.4 Comparability....................................................................................... 4-4 4.3.5 Completeness ....................................................................................... 4-4 05-0022.doc iii 13 April 2005 Preliminary Assessment/Site Inspection Report—Camp Abbot FUDS Table of Contents TABLE OF CONTENTS (Continued) Section Page 4.4 LABORATORY QUALITY ASSURANCE/QUALITY CONTROL PARAMETERS.................................................................................................. 4-5 4.4.1 Holding Times...................................................................................... 4-5 4.4.2 Blank Sample Results........................................................................... 4-5 4.4.3 Calibration Check Sample Analysis...................................................... 4-6 4.4.4 Laboratory Control Sample Analysis .................................................... 4-6 4.4.5 Inductively Coupled Plasma-Atomic Emission Spectroscopy (ICP-AES)—Interference Check Sample (ICS) Analysis ...................... 4-6 4.4.6 Serial Dilutions..................................................................................... 4-6 4.4.7 Duplicate Sample Analysis................................................................... 4-7 4.4.8 Matrix Spike Sample Analysis.............................................................. 4-7 4.4.9 System Monitoring Compound (Surrogate) Spike Analysis .................. 4-7 4.4.10 Internal Standard Analysis.................................................................... 4-7 4.4.11 Detection Limits................................................................................... 4-7 4.4.12 Other Data Assessment......................................................................... 4-7 5. ANALYTICAL RESULTS REPORTING AND BACKGROUND SAMPLES......... 5-1 5.1 ANALYTICAL RESULTS EVALUATION CRITERIA .................................... 5-1 5.2 BACKGROUND SAMPLE LOCATION AND ANALYTICAL RESULTS....... 5-1 5.2.1 Background Sample Locations ............................................................. 5-2 5.2.2 Background Sample Results ................................................................. 5-2 6. POTENTIAL SOURCE CHARACTERIZATION..................................................... 6-1 6.1 POTENTIAL SOURCE SAMPLING LOCATIONS AND ANALYTICAL RESULTS........................................................................................................... 6-1 6.1.1 Source Description ............................................................................... 6-1 6.1.2 Sample Locations ................................................................................. 6-2 6.1.3 Sample Results..................................................................................... 6-3 7. MIGRATION/EXPOSURE PATHWAYS AND TARGETS ..................................... 7-1 7.1 GROUNDWATER MIGRATION PATHWAY.................................................. 7-1 7.1.1 Groundwater Pathway Targets.............................................................. 7-1 7.1.2 Groundwater Sample Location and Results........................................... 7-1 7.2 SURFACE WATER MIGRATION PATHWAY ................................................ 7-2 7.2.1 Surface Water Pathway Targets............................................................ 7-3 7.2.2 Target Sample Locations ...................................................................... 7-4 7.2.3 Target Samples Analytical Results........................................................ 7-4 7.3 SOIL EXPOSURE PATHWAY.......................................................................... 7-5 7.4 AIR MIGRATION PATHWAY ......................................................................... 7-6 8. SUMMARY AND CONCLUSIONS............................................................................ 8-1 05-0022.doc iv 13 April 2005 Preliminary Assessment/Site Inspection Report—Camp Abbot FUDS Table of Contents TABLE OF CONTENTS (Continued) Section Page 9. REFERENCES............................................................................................................. 9-1 APPENDIX A PHOTOGRAPHIC DOCUMENTATION APPENDIX B SURFICIAL CLEANUP OF ASBESTOS-CONTAINING- MATERIAL REPORT APPENDIX C CORRECTED AND UNCORRECTED GPS COORDINATES APPENDIX D DATA VALIDATION MEMORANDA AND LABORATORY SHEETS APPENDIX E SUNRIVER WATER LLC MUNICIPAL WELL #2 HISTORICAL ANALYTICAL DATA 05-0022.doc v 13 April 2005 Preliminary Assessment/Site Inspection Report—Camp Abbot FUDS Table of Contents LIST OF FIGURES Figure Title 2-1 Site Location Map 2-2 Site Plan 3-1 Site Overview and Sample Location Map 3-2 Landfill Features and Sample Location Map 3-3 Machine Gun Range Features and Sample Location Map 3-4 Northern Rifle Range Features and Sample Location Map 3-5 Southern Rifle Range Features and Sample Location Map 3-6 Grenade Court Features and Sample Location Map 3-7 Demolition Pits Features and Sample Location Map 7-1 4-Mile Target Distance Limit (TDL) Map 7-2 15-Mile Target Distance Limit (TDL) Map LIST OF TABLES Table Title 3-1 Sample Collection and Analyses Summary 3-2 Sample Coding 6-1 Potential Sources: Landfill Analytical Results 6-2 Potential Sources: Machine Gun Range and Rifle Ranges Analytical Results 6-3 Potential Sources: Grenade Court and Demolition Pits Analytical Results 7-1 Groundwater Wells and Associated Population Within the 4-Mile TDL 7-2 Sunriver Water LLC Municipal Well #2 Analytical Results 7-3 Target Sediment Samples Analytical Results 7-4 Landfill Surface Water Sample Analytical