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TABLE OF CONTENTS <br /> Page <br /> PROFESSIONAL CERTIFICATION AND LIMITATIONS 1 <br />�J <br /> INTRODUCTION 2 <br /> Site Code 2 <br /> Site Location 2 <br /> Background 2 <br /> GEOLOGY AND HYDROGEOLOGY 3 <br /> DISTRIBUTION AND CONCENTRATIONS OF HYDROCARBONS 4 <br /> Data Compilation 4 <br /> Interpretation of Area of Subsurface Affected by Release of Gasoline 4 <br /> HYDROSTRATIGRAPHY AND GEOTECHNICAL PROPERTIES OF SOILS 5 <br /> Hydrosrtatigraphy 5 <br /> Composition of Soils 5 <br /> Hydraulic Properties of Soils 6 <br /> Strata Affected by Hydrocarbons 6 <br /> REMEDIATION STRATEGY 7 <br /> Strategic Design Considerations 8 <br /> Consideration of Alternate Remedial Technologies 9 <br /> Controlled Excavation to Remove Severely Affected Soils 12 <br /> PROPOSED REMEDIATION PROGRAM 14 <br /> Demolition 15 <br /> Base-line Groundwater-quality Data 15 <br />'1 Excavation of Contaminated Soil 17 <br /> Limits of Excavation 18 <br /> } Damage to Public Sidewalks 19 <br /> iRemoval of Existing Groundwater-quality Monitoring Wells 19 <br /> Estimated Volume of Contaminated Soil to be Removed 19 <br /> Soil Sampling in Remedial Excavation 20 <br /> rPumping of Groundwater from Remedial Excavation 21 <br /> Estimated Volume of Groundwater to be Pumped 21 <br /> Contaminant Load in Groundwater Pumped from Excavation 22 <br /> Groundwater Treatment System 23 <br /> Principal Process Units 23 <br /> Sparging Tanks 24 <br /> Carbon Adsorption Units 24 <br /> Process Flow and Control 26 <br />