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• DDfTracy OU 1 Pesticide Remediation <br /> Groundwater Piezometer Abandonment and Installation Work Plan <br /> TABLE OF CONTENTS <br /> Pane <br /> 1.0 INTRODUCTION AND BACKGROUND.....................................................................................1 <br /> 2.0 TEMPORARY PIEZOMETER ABANDONMENT.......................................................................1 <br /> 3.0 PIEZOMETER INSTALLATION ACTIVITIES............................................................................2 <br /> 4.0 PIEZOMETER MATERIALS.........................................................................................................2 <br /> 4.1 Piezometer Casing...............................................................................................................2 <br /> 4.2 Piezometer Screen...............................................................................................................2 <br /> 4.3 Filter Pack............................................................................................................................5 <br /> 4.4 Bentonite Seal......................................................................................................................5 <br /> 4.5 Cement Grout......................................................................................................................5 <br /> 4.6 Wellheads.......................................:....................................................................................5 <br /> 5.0 POST-PIEZOMETER-INSTALLATION ACTIVITIES................................................................5 <br /> 5.1 Investigation-Derived Waste...............................................................................................5 <br /> 5.2 Piezometer Location Surveying...........................................................................................5 <br /> 5.3 Groundwater Water Level Measurements...........................................................................5 <br /> 5.4 Data Management................................................................................................................6 <br /> 6.0 REFERENCES ................................................................................................................................6 <br /> LIST OF FIGURES <br /> Paae <br /> 1-1 OU 1 Pesticide Treatment Groundwater Extraction Wells,DDJC-Tracy.......................................3 <br /> KAWpracess\00701\Trecy\0U1 Pst PZ Abnd\DRAFI\text.dm i June 2004 <br />