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l <br /> I Interim Remediation Work Plan - May 2003 <br /> • TOP FILLING STATION <br /> 101 South Wilson Way, Stockton, California <br /> TABLE OF CONTENTS <br /> SECTION PAGE <br /> 1.0. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br /> 2.0. BACKGROUND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br /> 21 SITE DESCRIPTION 1 <br /> 2 2 REGIONAL GEOLOGY AND HYDROGEOLOGY 2 <br /> 23 UNDERGROUND STORAGE TANK REMOVAL 3 <br /> 24 PREVIOUS SUBSURFACE INVESTIGATION 3 <br /> i3.0. SCOPE OF WORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 <br /> 31 PERMITTING AND PRE-FIELD WORK ACTIVITIES 6 <br /> 32 INSTALLATION OF REMEDIATION WELLS 6 <br /> 33 INSTALLATION OF INTERIM REMEDIATION SYSTEM PIPING NETWORK <br /> 7 <br /> 34 PROPOSED INTERIM SOIL REMEDIATION SYSTEM 7 <br /> 35 PROPOSED INTERIM GROUND WATER REMEDIATION SYSTEM 8 <br /> 36 INTERIM REMEDIATION START-UP PERIOD 8 <br /> 37 MONITORING AND MAINTENANCE 9 <br /> 38 REPORT PREPARATION 9 <br /> I4.0. FIELD PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 <br /> 41 PERMITTING 10 <br /> 42 DRILLING ACTIVITIES 10 <br />' 4 2 1 Drilling And Soil Sample Collection 11 <br /> 4 2 2 Ground Water Extraction Well Completion 11 <br />' 4 2 3 Ground Water Extraction Well Development 12 <br /> 43 REMEDIATION SYSTEM PIPING NETWORK 12 <br /> 44 SOIL VAPOR EXTRACTION SYSTEM DESIGN 13 <br />' 4 4 1 Soil Vapor Extraction Monitoring 13 <br /> 4 4 2 Soil Vapor Extraction System Maintenance 14 <br /> 45 GROUND WATER PUMP AND TREAT SYSTEM 14 <br />' 4 5 1 Ground Water Extraction 15 <br /> 4 5 2 Extraction Well And Process Pump Controllers 15 <br /> 4 5 3 Ground Water Extraction Start-Up Period 15 <br />' 4 5 4 Pump-and-Treat Monitoring and Maintenance Activities 16 <br /> . <br /> 46 REPORT PREPARATION 16 <br />' Advanced Geof nvironmental,Inc <br /> 1 <br />