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Table of Contents <br /> 1 Introduction........................................................................................................................................1 <br /> 2 Background........................................................................................................................................3 <br /> 2.1 Site Description .........................................................................................................................3 <br /> 2.2 Site History................................................................................................................................3 <br /> 2.3 Other Site Information ...............................................................................................................4 <br /> 2.3.1 Site Hydrogeology ...........................................................................................................4 <br /> 3 Scope of Work...................................................................................................................................6 <br /> 3.1 Sampling Rationale ...................................................................................................................6 <br /> 3.2 Proposed Sampling...................................................................................................................6 <br /> 3.2.1 Groundwater Sampling....................................................................................................6 <br /> 3.2.2 Soil Vapor Sampling........................................................................................................7 <br /> 3.2.3 Indoor Air Sampling.........................................................................................................7 <br /> 3.3 Screening Level Comparison ....................................................................................................7 <br /> 4 Field Operations ................................................................................................................................8 <br /> 4.1 Pre-field Activities......................................................................................................................8 <br /> 4.2 Investigation Activities...............................................................................................................8 <br /> 4.2.1 Temporary Monitoring Well Installation ...........................................................................8 <br /> 4.2.2 Groundwater Sampling....................................................................................................8 <br /> 4.2.3 Installation of Soil Vapor Sampling Points.......................................................................9 <br /> 4.2.4 Soil Vapor Sampling........................................................................................................9 <br /> 4.2.5 Indoor Air Sampling.......................................................................................................10 <br /> 4.3 Decontamination......................................................................................................................10 <br /> 4.4 Waste Management ................................................................................................................10 <br /> 4.5 Sample Handling.....................................................................................................................10 <br /> 4.5.1 Sample Containers........................................................................................................10 <br /> 4.5.2 Packaging and Shipping................................................................................................11 <br /> 4.6 Field Quality Control................................................................................................................11 <br /> 4.6.1 Field Duplicates.............................................................................................................11 <br /> 4.6.2 Blank Samples...............................................................................................................11 <br /> 4.6.3 Sample Identification .....................................................................................................12 <br /> 5 Reporting .........................................................................................................................................13 <br /> 5.1 Proposed Schedule.................................................................................................................13 <br /> Tables <br /> 1. Summary of Soil Gas Sampling Results <br /> 2. Summary of SVE Well Sampling Results <br /> 3. Summary of Groundwater Well Sampling Results <br /> 3989.0001S101/R Revised Data Gap Investigation Work Plan I ROUX ii <br />