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I <br />' Quarterly Report - Fourth Quarter 2003 <br /> • CALIFORNIA FUELS CARDLOCK STATION <br />' 2402 Pacific Avenue, Stockton, California <br />' TABLE OF CONTENTS <br />' SECTION PAGE <br />' 1.0. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br /> 2.0. GROUND WATER MONITORING AND SAMPLING PROCEDURES . . . . . . . . 1 <br /> 2 1 WELL MONITORING AND EVACUATION PROCEDURES 1 <br /> 22 GROUND WATER SAMPLING 2 <br /> 2 3 LABORATORY ANALYSIS OF GROUND WATER SAMPLES 2 <br /> 3.0. SOIL VAPOR EXTRACTION/IN-SITU AIR SPARGE SYSTEM . . . . . . . . . . . . . . 3 <br /> 3 1 REMEDIATION SYSTEM PROCEDURES 3 <br /> 32 IN-SITU AIR SPARGING SYSTEM PROCEDURES 4 <br /> 33 COLLECTION AND ANALYSIS OF VAPOR EXTRACTION AIR FLOW <br /> SAMPLES 4 <br />' 4.0. FINDINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 <br /> 41 GROUND WATER ELEVATION AND GRADIENT 5 <br />' 42 LABORATORY RESULTS OF GROUND WATER SAMPLES 5 <br /> 43 RESULTS OF SOIL VAPOR EXTRACTION 5 <br /> I <br /> 44 ANALYTICAL RESULTS OF VAPOR EXTRACTION AIR FLOW SAMPLES <br /> 6 <br /> 45 MASS CALCULATION OF RECOVERED PRODUCT 6 <br /> I5.0. CONCLUSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 <br /> 6.0. RECOMMENDATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 <br /> 7.0. LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 <br /> FIGURES <br /> Figure I -Location Map <br /> Figure 2 - Site Map <br /> Figure 3 - Ground Water Elevation Contour Map November 2003 <br /> Figure 4 -Inferred Extent of Dissolved TPH-g November 2003 <br /> I <br />