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TABLE OF CONTENTS 1.0 INTRODUCTION...............................................................:.................. 1 t 1.1 Project Background........................................................................................................................... I 1.2 Purpose of Investigation............................................................................. .........2 2.0 SCOPE OF WORK...........................................:.......................................................................................2 } 3.0 FINALIZATION OF WORK PLAN AND PREPARATION OF UPDATED HEALTH AND SAFETY PLAN...................................................................................................................:...................................2 4.0 WELL INSTALLATION................................................:........................................................................3 4.1 Well:,Installation Permit and Utility Clearance..................................................................................3 4.2 Soil Sampling....................................................................................................................................3 L 4.3 Monitoring Well Installation............................ 4.4 Well'Development..............:...........................................................................................................:..4 4.5 Equipment Decontamination.............................................................................................................4 t 4.6.1 Drilling Equipment..................................................................................................................4 4.6.2 Sampling and Testing Equipment............................................................................................4 4.6-3 Submersible Pumps.................................................................................................................4 4.6.4 Personnel Decontamination...............................................................................................:.....4 `' 4.6 Investigation--Derived Wastes...........................:................................................................................4 5.0 SAMPLING METHODS AND PROCEDURES.................................................................................:...5 5.1 Soil Sampling Procedures......................................................................................................... .......5 L 5-2 Groundwater Sampling Procedures....................:..............................................................................5 5.2.1.1 Static Water Level Measurement ........................................................................ .................5 5.2.2 Well Purging............................................................................................................................5 L 5.2.3 Sample Collection............................................................................................................:......6 5.2.4 Sample Preservation and Handling..........................................................................................6 5.2.5 Field Parameters-..................................................... .....I....... 6 5.2.6 Chain-of-Custody Procedures.................___........................................................................6 6.0 SCHEDULING AND REPORTING.............................................................................. .........................6 L7.0 REFERENCES...................................................................................................................................... 7 LLIST OF TABLES Table 1 Sample Containers and Preservation Li LIST OF FIGURES Figure l Site Location'Map Figure 2 Site Map with PCE and 1,2-DCA Concentrations LLIST OF APPENDICES Appendix A San Joaquin County Environmental Health Department Letter,April 16, 2003 L E b