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TABLE OF CONTENTS <br /> SIGNATUREPAGE ........................................................................................................ii <br /> 1.0 INTRODUCTION ..................................................................................................1 <br /> 2.0 BACKGROUND INFORMATION .........................................................................3 <br /> 2.1 HISTORIC SITE USE .............................................................................................3 <br /> 2.2 CURRENT SITE USE AND SITE SETTING .................................................................3 <br /> 2.3 GEOLOGY AND HYDROGEOLOGY...........................................................................4 <br /> 2.4 REGIONAL GROUNDWATER QUALITY .....................................................................5 <br /> 2.5 CONSTITUENTS OF CONCERN AT THE SITE.............................................................5 <br /> 2.6 COMPLETED REMEDIATION ACTIVITIES ..................................................................5 <br /> 3.0 WORK PLAN TO ADDRESS GROUNDWATER CONDITIONS IN THE VICINITY <br /> OFMW-26R..........................................................................................................7 <br /> 3.1 ACENAPHTHENE CONCENTRATIONS IN GROUNDWATER AT THE SITE ........................7 <br /> 3.2 ASSESSMENT OF ACENAPHTHENE CONCENTRATIONS IN GROUNDWATER <br /> DOWNGRADIENT OF THE SITE............................................................................9 <br /> 4.0 WORK PLAN TO DECOMMISSION EIGHT WELLS.........................................11 <br /> 5.0 DATA EVALUATION AND REPORT PREPARATION ......................................12 <br /> 6.0 ANTICIPATED SCHEDULE...............................................................................13 <br /> 7.0 REFERENCES ...................................................................................................14 <br /> LIST OF TABLES <br /> Table 1 Well Construction Summary <br /> LIST OF FIGURES <br /> Figure 1 Site Location Map <br /> Figure 2 Former Facility Layout <br /> Figure 3 Acenaphthene Concentrations in Groundwater at the Site <br /> Figure 4 Well Construction Diagram — Proposed MW-27 <br /> LIST OF EXHIBITS <br /> Exhibit A Site Health and Safety Plan <br /> i ENVA� <br /> A M E R I C A <br /> PAPG&EPGE-05-01 Stockton MW26R InvestigationWW26 Work PlanTGE Stockton MW26R WP.doc <br />