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Groundwater Well Installation Work Plan Sharpe Army Depot <br /> Lathrop, California <br /> Table of Contents <br /> DocumentApproval..............................................................................................................................i <br /> Tableof Contents.................................................................................................................................ii <br /> Acronymsand Abbreviations..............................................................................................................iv <br /> 1.0 Introduction.................................................................................................................................1 <br /> 1.1 Site Location and Description ...........................................................................................................2 <br /> 1.2 Geology and Hydrogeology...............................................................................................................3 <br /> 2.0 Rationale......................................................................................................................................4 <br /> 2.1 Extraction Wells ................................................................................................................................4 <br /> 2.1.1 South Balloon..............................................................................................................................4 <br /> 2.1.2 Central Area................................................................................................................................5 <br /> 2.2 Monitoring Wells...............................................................................................................................5 <br /> 2.2.1 South Balloon..............................................................................................................................5 <br /> 2.2.2 Central Area................................................................................................................................6 <br /> 3.0 Field Activities..............................................................................................................................6 <br /> 3.1 Pre-Field Activities.............................................................................................................................7 <br /> 3.1.1 Notification and Access ..............................................................................................................7 <br /> 3.1.2 Permitting...................................................................................................................................7 <br /> 3.1.3 Geophysical Clearance................................................................................................................7 <br /> 3.1.4 Burrowing Owl Management.....................................................................................................8 <br /> 3.1.5 Support Facilities ........................................................................................................................8 <br /> 3.1.6 Security.......................................................................................................................................8 <br /> 3.1.7 Traffic Control Plan.....................................................................................................................8 <br /> 3.2 Well Installation Activities.................................................................................................................8 <br /> 3.2.1 Well Construction.....................................................................................................................10 <br /> 3.2.2 Well Development....................................................................................................................13 <br /> 3.2.3 Aquifer Pumping Tests..............................................................................................................13 <br /> 3.2.4 Surface Completion ..................................................................................................................15 <br /> 3.2.5 Conveyance Piping Installation and Electrical Hook-up ...........................................................16 <br /> 3.2.6 Surveying ..................................................................................................................................17 <br /> 3.2.7 Sampling ...................................................................................................................................17 <br /> 3.3 Waste Management........................................................................................................................17 <br /> 3.4 Field Documentation and Photographic Record.............................................................................18 <br /> 3.5 Schedule.......................................................................................................................................... 18 <br /> 4.0 Quality Control and Quality Assurance.......................................................................................18 <br /> 5.0 Site Safety and Health ................................................................................................................19 <br /> 6.0 References .................................................................................................................................20 <br /> Ahtna Environmental,Inc. ii <br />