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' TABLE OF CONTENTS <br /> • 1.0. INTRODUCTION AND SCOPE OF WORK . . . . . . . . . i <br />' 2.0 BACKGROUND . . . . , , , • , . <br /> 21 REGIONAL GEOLOGICAL/HYDROGEOLOGICAL SETTING i <br />' 22 LOCAL GROUND WATER SETTING 2 <br /> 23 WELL SURVEY 2 <br /> 24 UST REMOVAL 3 <br />' 30 ASSESSMENT OF HYDROCARBON-IMPACTED SOIL AND GROUND WATER 3 <br />' 40 POTENTIAL IMPACT ON NEARBY SURFACE AND GROUND WATER . . . . . 6 <br /> 50. SOIL REMEDIATION ALTERNATIVES . . . . . . . . . . . . . . . . . . . . . . . . 6 <br />' <br /> 51 EX-SITU TREATMENT OF IMPACTED SOIL 6 <br /> 511 Excavation 7 <br /> 5 1 2 Feasibility Of Excavation 7 <br />' 5 1 3 Estimated Cost For Excavation 7 <br /> 52 IN-SITU SOIL BIOREMEDIATION 8 <br /> 52 1 Principles 8 <br /> 5 2 2 Nutrient Requirements and Toxicity 8 <br /> 5 2 3 Inoculation Wells 9 <br /> 5 2 4 Monitoring Activities 9 <br /> I � 5 2 5 Duration 9 <br /> 5 2 6 Feasibility 10 <br /> 5 2 7 Estimated Cost of In-Situ Bio-remediation 10 <br /> 5 3 MONITORED NATURAL ATTENUATION 10 <br /> 60 GROUND WATER REMEDIATION ALTERNATIVES . . . . . . . . . . . . . . 11 <br /> 61 GROUND WATER EXTRACTION 11 <br /> 6 1 1 Ground Water Treatment Methods 12 <br /> 6 12 Feasibility Testing 12 <br /> 613 Duration 13 <br /> 614 Cost 13 <br /> 62 IN-SITU BIOREMEDIATIONBIOENHANCEMENT 13 <br /> 62 1 Nutrient Requirements and Toxicity 14 <br /> I <br /> 622 Monitoring Activities 14 <br /> 623 Feasibility Studies 14 <br /> 624 Duration 15 <br /> 6 2 5 Cost 15 <br /> 63 MONITORED NATURAL ATTENUATION 15 <br /> I <br /> 70. RECOMMENDATIONS FOR REMEDIATION OF HYDROCARBON- <br /> IMPACTED SOIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 <br /> 8.0. RECOMMENDATIONS FOR REMEDIATION OF HYDROCARBON- . • • . . <br /> IMPACTED GROUND WATER . . 16 <br /> 9.0. LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 <br /> I Advanced GeoEnvironmental,Inc <br />