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. v <br /> TABLE OF CONTENTS <br /> CONTENTS PAGE <br /> 1.0 INTRODUCTION...........................................................................................................1 <br /> ' 2.0 SITE DESCRIPTION AND BACKGROUND.............................................................1 <br /> ' 2.1 Underground Storage Tanks .................................................................................1 <br /> 2.2 Regional Geology and Hydrogeology...................................................................l <br /> 2.3 Site Geology and H dro eolo 2 <br /> ' 3.0 PREVIOUS ENVIRONMENTAL WORK..................................................................3 <br /> ' 4.0 SUMMARY OF SOIL AND GROUNDWATER CONDITIONS..............................3 <br /> 4.1 Extent of Hydrocarbon-Impacted Vadose Zone Soil............................................3 <br /> 4.2 Estimated Extent of Hydrocarbon-Impacted Groundwater...................................4 <br /> ' 5.0 DESIGN PLANS AND SPECIFICATIONS..................................................................4 <br /> 5.1 Design Parameters.................................................................................................4 <br /> ' 5.1.1 Vapor Extraction-Wellhead Vacuum,Flow Rate,and Radius of Influence...4 <br /> 5.1.2 Soil Volume Calculations..............................................................................5 <br /> 5.1.3 Pre-Remediation Mass Balance Calculations- Soil........................................5 <br /> ' 5.1.4 Pre-Remediation Mass Balance Calculations- Groundwater..........................5 <br /> 5.1.5 Estimated Length of Operation and Final Constituent Concentrations............5 <br /> 5.2 Design Specifications............................................................................................6 <br /> ' 5.2.1 Vapor Extraction System...............................................................................6 <br /> 5.2.2 Groundwater Air Sparging.............................................................................6 <br /> 5.2.3 Remediation System Layout.......................................................................... <br /> 6.0 REMEDIATION SYSTEM CONSTRUCTION..........................................................8 <br /> ' 6.1 Building, Air Pollution Control District, and Well Installation Permits...............8 <br /> 6.2 Construction and Construction Inspection............................................................8 <br /> 6.3 Systems Startup and Operation.............................................................................8 <br /> ' 6.3.1 Vapor Extraction and Air Sparge Systems Monitoring.................................88 <br /> 6.3.2 Systems Sampling.......................................................................................... <br /> 6.4 Systems Performance Evaluation..........................................................................10 <br /> ' 7.0 LIMITATIONS...............................................................................................................10 <br /> ' 8.0 REFERENCES................................................................................................................11 <br />