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Work Plan Soil and Groundwater Assessment for Union Island Field Union Oil Company of California San Joaquin County, California TABLE OF CONTENTS SECTION PAGE i 1 .0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 PURPOSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3.0 SCOPE OF WORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3.1 TASK 1 - PREPARATION OF PERMITS, WORK PLAN, HEALTH AND SAFETY PLAN, AND UNDERGROUND UTILITY CLEARANCE . . . 2 3.2 TASK 2 - SOIL SAMPLE COLLECTION AND ANALYSIS . . . . . . . . . . . . . . . 2 3.3 TASK 3 - GROUNDWATER SAMPLE COLLECTION AND ANALYSIS . . . . . . 3 3.4 TASK 4 - REPORT PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4.0 FIELD PROCEDURES AND PROTOCOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4.1 SOIL BORINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4.2 SOIL SAMPLING PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4.3 GROUNDWATER SAMPLING PROCEDURES . . . . . . . . . . . . . . . . . . . . . . 5 4.3 ABANDONMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4.4 DECONTAMINATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4.5 SAMPLE DOCUMENTATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.6 CHAIN OF CUSTODY RECORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 LIST OF FIGURES AND APPENDICES LIST OF FIGURES FIGURE 1 - SITE LOCATION MAP FIGURE 2 - SITE VICINITY MAP FIGURE 3 - SITE PLAN LIST OF APPENDICES APPENDIX A - HEALTH & SAFETY PLAN SAC 187.14