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Evaluation of Additional Remedial Alternatives <br /> FLAG CITY CHEVRON <br /> 6421 Capitol Avenue, Lodi, California <br /> TABLE OF CONTENTS <br /> SECTION PAGE <br /> 1.0. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br /> 20 PREVIOUS GROUND WATER REMEDIATION ACTIVITIES . . . . . . . . . . . . . . . 1 <br /> 3.0. ASSESSMENT OF MTBE-IMPACTED GROUND WATER . . . . . . . . . . . . . . . . . . 2 <br /> 4.0. GROUND WATER REMEDIATION ALTERNATIVES . . . . . . . . . . . . . . . . . . . . . 2 <br /> 41 IN-SITU AIR SPARGING 3 <br /> 411 Principles 3 <br /> 4 1 2 Basic System Design 3 <br /> 4 13 Monitoring Activities 4 <br /> 414 Feasibility 4 <br /> 415 Duration 5 <br /> 41 6 Estimated Cost 5 <br /> 42 IN-SITU OZONE SPARGING 5 <br /> 4 2 1 Principles 5 <br /> 422 Basic System Design 6 <br /> 423 Monitoring Activities 6 <br /> 424 Feasibility 7 <br /> 4 2 5 Duration 7 <br /> 4 2 6 Estimated Cost 7 <br /> 43 IN-SITU BIOREMEDIATIONBIOENHANCEMENT 8 <br /> 43 1 Nutrient Requirements And Toxicity 8 <br /> 4 3 2 Monitoring Activities 8 <br /> 4 3 3 Feasibility Studies 8 <br /> 4 3 4 Duration 9 <br /> 4 3 5 Estimated Cost 9 <br /> 44 NATURAL ATTENUATION 9 <br /> 4 4 1 Principles 10 <br /> 4 4 2 Duration 10 <br /> 443 Feasibility 10 <br /> 444 Estimated Cost 10 <br /> Advanced GeoEnvnronmental,Inc <br />