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TABLE OF CONTENTS <br /> 1.0 SITE INFORMATION AND BACKGROUND........................................................................................1 <br /> 1.1 Problem Definition..........................................................................................................................................................1 <br /> 1.2 Project Purpose and Description...............................................................................................................................2 <br /> 1.3 Proposed Screening Levels..........................................................................................................................................3 <br /> 1.4 Data Quality Objectives.................................................................................................................................................3 <br /> 1.4.1 Indoor Air Sampling..............................................................................................................................................3 <br /> 1.4.2 Site Boundary Shallow Soil Gas Sampling ...................................................................................................4 <br /> 1.4.3 PCE Groundwater Plume Assessment............................................................................................................5 <br /> 1.4.4 Petroleum Hydrocarbon Release Assessment............................................................................................6 <br /> 1.4.5 Sewer Lateral Soil Gas Assessment.................................................................................................................7 <br /> 1.4.6 Environmentally Persistent Pesticide Assessment....................................................................................8 <br /> 1.5 Project Time Line..............................................................................................................................................................9 <br /> 2.0 GEOLOGY AND HYDROGEOLOGY......................................................................................................9 <br /> 3.0 PROJECT DATA QUALITY OBJECTIVES..............................................................................................9 <br /> 4.0 SAMPLING AND ANALYTICAL PROGRAM .....................................................................................10 <br /> 4.1 Sample Selection and Analytical Criteria..................................................................................................................10 <br /> 5.0 SAMPLING PROCEDURES..................................................................................................................12 <br /> 5.1 Field Preparation...........................................................................................................................................................12 <br /> 5.1.1 Health and Safety................................................................................................................................................12 <br /> 5.1.2 Subsurface Utility Clearance...........................................................................................................................12 <br /> 5.1.3 Permitting..............................................................................................................................................................12 <br /> 5.2 Proposed Vapor Intrusion Assessment................................................................................................................12 <br /> 5.2.1 Proposed Indoor Air Sampling Methods..................................................................................................13 <br /> 5.2.2 Proposed Sub-Slab Soil Gas Probe Installation Methods...................................................................14 <br /> 5.3 Proposed Site Boundary, Sewer Lateral, and Petroleum Hydrocarbon Release Soil Gas <br /> Assessment......................................................................................................................................................................15 <br /> 5.3.1 Proposed Shallow Soil Gas Sample Probe Installation Methods.....................................................15 <br /> 5.4 Proposed Soil Gas Sample Collection Methodology.....................................................................................16 <br /> 5.4.1 Shut-In Test...........................................................................................................................................................16 <br /> 5.4.2 Leak Test.................................................................................................................................................................16 <br /> 5.4.3 Sample Flow Rate...............................................................................................................................................16 <br /> 5.4.4 Purge Volume.......................................................................................................................................................17 <br /> 5.4.5 Soil Gas Sample Analysis.................................................................................................................................17 <br /> 5.5 Proposed Groundwater Assessment for the Quality Cleaners....................................................................17 <br /> 5.5.1 Proposed Groundwater Sampling Methodology...................................................................................18 <br /> 5.5.2 Proposed Groundwater Sample Analysis..................................................................................................19 <br /> 5.6 Proposed Quarterly Groundwater Monitoring Program...............................................................................19 <br /> 5.7 Proposed Petroleum Hydrocarbon Release Assessment..............................................................................20 <br /> 5.7.1 Proposed Soil and Groundwater Sample Analysis.................................................................................21 <br /> Sampling and Analysis Plan <br /> Tracy Corners Shopping Center <br /> 3225 North Tracy Boulevard <br /> Tracy,California 95376 <br /> Partner Project Number SM14-129814 <br /> Docket Number HAS-VCA 14/15-108 <br /> August 15,2016 <br /> Page iii <br />