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SACRAMENTO <br />' TABLE OF CONTENTS <br />' Page No. <br /> 1. 0 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br />' 1. 1 Background/Site History. . . . . . . . . . . . . . . . . • • . . . . 1 <br /> 1. 2 Interim Remediation/Pilot Study Objectives. . . 2 <br /> 2 . 0 ENVIRONMENTAL SETTING. . . . . . . . . . 4 <br /> r 2 . 1 Site Location and Description. . . . . . . . ` . . . . . . . . 4 <br /> 2 . 2 Regional and Site Geology. . 4 <br /> 2 . 3 Surface Water and Geohydrology. . . . . . . . . . . . . . . . 5 <br /> 2 .4 Beneficial Uses of Water. . . . . . . . . . . . . . . . . . . . . . 5 <br /> 3 . 0 SOIL-VAPOR EXTRACTION WELLS. . . . . . . . . . . . . . . . . . . . • • • • 6 <br /> 3 . 1 Soil Sampling and Analysis. . . . . . . . . . . . . . . . . . . . 6 <br />' 3 . 2 Soil-Vapor Extraction Well Installation. . . . . . . 8 <br /> 3 . 3 Laboratory Analytical Results. . . . . . . . . . . . . . . . . 9 <br />' 4 . 0 SOIL-VAPOR EXTRACTION SYSTEM. . . . . . . . . . . . . . . . . . . . . . . 10 <br /> 4 . 1 Soil-Vapor Extraction Wells. . 10 <br /> 4 . 2 Soil-Vapor Extraction Blower. . . 10 <br /> 4 . 3 Discharged Vapor Treatment System. . . . . . . . . . . . . 11 <br /> 4 .4 Soil-Vapor Extraction System Operation. . . . . . . . 11 <br /> 4 . 5 System Monitoring Methods. . . . . . . . . . . . . . • • • • . . . 11 <br /> 4 . 6 Analytical Laboratory Results. . . . . . . . . . . . . . . . • 13 <br />' 5. 0 SYSTEM PERFORMANCE EVALUATION. . . . . . . . . . . . . . . . . . . . . . 15 <br /> 5. 1 Flow Rates. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 <br /> ' 5.2 Hydrocarbon Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 <br /> 6. 0 CONCLUSIONS AND RECOMMENDATIONS. . . . . . . . . . . . . . . . . . . . 17 <br /> ' 7 . 0 REFERENCES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 <br /> 8 . 0 APPENDIX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 <br /> 1 <br /> 1 <br />