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Closure Summary Report <br /> CHEROKEE TRUCK STOP <br /> 3535 East Cherokee Road, Stockton, California <br /> TABLE OF CONTENTS <br /> SECTION PAGE <br /> 1.0. INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br /> 2.0. BACKGROUND.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br /> 2.1. REGIONAL GEOLOGIC/HYDROGEOLOGIC SETTING. . . . . . . . . . . . . 1 <br /> 2.2. RECEPTOR SURVEY.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 <br /> 2.3. UNDERGROUND STORAGE TANK REMOVAL. . . . . . . . . . . . . . . . . . . 3 <br /> 2.4. PREVIOUS SITE INVESTIGATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 <br /> 2.5. SOIL CHARACTERIZATION.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 <br /> 3.0. ASSESSMENT OF HYDROCARBON-IMPACTED SOIL. . . . . . . . . . . . . . . . . . 8 <br /> 3.1. FATE AND TRANSPORT MODELING OF HYDROCARBON- <br /> IMPACTED SOIL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 <br /> 3.1.1 Overview of Sesoil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 <br /> 3.1.2 Site Specific Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 <br /> 3.1.3 Results of Sesoil Modeling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 <br /> V <br /> 4.0. ASSESSMENT OF HYDROCARBON-IMPACTED GROUNDWATER. . . . . . . 10 <br /> 5.0. CONCEPTUAL SITE MODEL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 <br /> 5.1. MIGRATION OF PETROLEUM RELEASE. . . . . . . . . . . . . . . . . . . . . . . 12 <br /> 5.2. IMPACT TO GROUNDWATER.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 <br /> 6.0. EIGHT-HOUR HIGH VACUUM SOIL VAPOR EXTRACTION (SVE) <br /> PILOT TEST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 <br /> 6.1. EIGHT-HOUR HVSVE PILOT TEST SAMPLING AND ANALYSIS. . . . 15 <br /> 6.2. RESULTS OF EIGHT-HOUR HVSVE PILOT TEST. . . . . . . . . . . . . . . . 16 <br /> 6.3. ANALYTICAL RESULTS OF EIGHT-HOUR HVSVE <br /> PILOT TEST SAMPLES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 <br /> 6.4. MASS CALCULATION OF RECOVERED PRODUCTS. . . . . . . . . . . . . 17 <br /> 7.0. EXTENDED HVSVE PILOT TEST.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 <br /> 7.1. EXTENDED HVSVE PILOT TEST PROCEDURES. . . . . . . . . . . . . . . . 18 <br /> 7.2. EXTENDED HVSVE PILOT TEST SAMPLING AND ANALYSIS. . . . . . 18 <br /> 7.3. RESULTS OF EXTENDED HVSVE PILOT TEST. . . . . . . . . . . . . . . . . 19 <br /> 7.4. ANALYTICAL RESULTS OF EXTENDED HVSVE <br /> SOIL-VAPOR SAMPLES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 <br /> 7.5. MASS CALCULATION OF RECOVERED PRODUCTS. . . . . . . . . . . . . 20 <br /> v <br /> Advanced GeoEnvironmental,Inc. <br />