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Stantec <br /> Further Assessment Work Plan <br /> Stockton Charter Way Commingled Plume <br /> February 15, 2011 <br /> TABLE OF CONTENTS <br /> 1.0 INTRODUCTION AND SITE INFORMATION ..................................................................... 1 <br /> 1.1 Background.................................................................................................................. 1 <br /> 1.2 Neighboring Leaking Underground Fuel Tank Sites ..................................................... 2 <br /> 1.2.1 Transmission Shop............................................................................................... 2 <br /> 1.2.2 Former Dolly Madison .......................................................................................... 2 <br /> 2.0 PROPOSED SCOPE OF WORK........................................................................................ 3 <br /> 2.1 Well Decommissioning................................................................................................. 3 <br /> 2.2 Well Installation............................................................................................................ 4 <br /> 2.3 Recommended Changes to Monitoring and Sampling Program and Baseline Data <br /> Collection ..................................................................................................................... 5 <br /> 2.3.1 Recommended Changes to Monitoring and Sampling Program ........................... 5 <br /> 2.3.2 Baseline Data Collection ...................................................................................... 5 <br /> 3.0 WELL DECOMMISSIONING .............................................................................................. 6 <br /> 3.1 Site-Specific Health and Safety Plan............................................................................ 6 <br /> 3.2 Permitting..................................................................................................................... 7 <br /> 3.3 Preliminary Field Activities ........................................................................................... 7 <br /> 3.4 Well Decommissioning................................................................................................. 7 <br /> 3.5 Waste Disposal ............................................................................................................ 8 <br /> 4.0 WELL INSTALLATION....................................................................................................... 8 <br /> 4.1 Site-Specific Health and Safety Plan............................................................................ 8 <br /> 4.2 Permitting..................................................................................................................... 8 <br /> 4.3 Preliminary Field Activities ........................................................................................... 8 <br /> 4.4 Soil Boring Advancement, Soil Sampling Analyses, and Well Installation..................... 8 <br /> 4.5 Well Development.......................................................................................................10 <br /> 4.6 Waste Handling and Disposal .....................................................................................10 <br /> 4.7 Surveying....................................................................................................................10 <br /> 5.0 REPORTING......................................................................................................................10 <br /> 6.0 SCHEDULE.......................................................................................................................11 <br /> 7.0 REFERENCES ..................................................................................................................11 <br /> 8.0 LIMITATIONS....................................................................................................................12 <br /> List of Figures <br /> Figure 1 Site Location Map <br /> Figure 2 Site Plan with Proposed Well Locations <br /> Figure 3 Typical Well Detail <br /> Figure 4 Gantt Chart <br /> List of Tables <br /> Table 1 Soil Boring and Well Construction Details <br /> Table 2 Historical Soil Analytical Data <br /> Table 3 Historical Groundwater Monitoring & Analytical Data <br /> Stockton Charter Way Commingled Plume Further Assessment Work Plan.doc i <br />