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Table of Contents <br /> 1.0 Introduction ........................................................................... 1 <br /> 1.1 Site Description ................................................................................ 1 <br /> 1.2 Site Background and Scope of Work ..................................................... 1 <br /> 1.3 Standard of Care............................................................................... 3 <br /> 1.4 Additional Scope Limitations ............................................................... 4 <br /> 1.5 Reliance........................................................................................... 4 <br /> 2.0 Low Threat Closure Policy Closure Evaluation .............................. 4 <br /> 2.1 General Criteria ................................................................................ 5 <br /> 2.2 Media-Specific Criteria ....................................................................... 5 <br /> 2.2.1 Groundwater-Specific Criteria.......................................................6 <br /> 2.2.2 Petroleum Vapor Intrusion to Indoor Air .........................................6 <br /> 2.2.3 Direct Contact and Outdoor Air Exposure ........................................6 <br /> 3.0 Field Investigation................................................................... 7 <br /> 3.1 Pre-Mobilization Activities................................................................... 7 <br /> 3.2 Geophysical Survey ........................................................................... 7 <br /> 3.3 Soil Borings and Soil Sampling ............................................................ 7 <br /> 3.4 Temporary Sampling Well and Groundwater Sampling............................. 8 <br /> 3.5 Geology........................................................................................... 9 <br /> 4.0 Laboratory Analytical Methods................................................... 9 <br /> 5.0 Data Evaluation .....................................................................10 <br /> 5.1 Soil Analytical Results .......................................................................10 <br /> 5.1.1 Total Petroleum Hydrocarbons .................................................... 10 <br /> 5.1.2 Volatile Organic Compounds....................................................... 10 <br /> 5.2 Groundwater Analytical Results ..........................................................10 <br /> 5.2.1 Total Petroleum Hydrocarbons .................................................... 11 <br /> 5.2.2 Volatile Organic Compounds....................................................... 11 <br /> 5.3 Quality Control/Quality Assurance and Data Validation ...........................11 <br /> 6.0 Findings and Conclusions.........................................................11 <br /> Facilities I Environmental I Geotechnical I Materials <br />