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Geosyntec <br /> consultants <br /> TABLE OF CONTENTS <br /> 1. INTRODUCTION.................................................................................................................1 <br /> 1.1 Background ..................................................................................................................1 <br /> 1.2 Regulatory Framework.................................................................................................2 <br /> 1.3 Previous Environmental Investigations........................................................................3 <br /> 1.4 Data Gaps For RI/FS....................................................................................................6 <br /> 1.5 Objectives.....................................................................................................................7 <br /> 1.5.1 Radionuclide Monitoring in the Landfill Area.................................................8 <br /> 2. WELL MAINTENANCE....................................................................................................10 <br /> 2.1 Well Re-Survey Activities..........................................................................................10 <br /> 2.2 Well Redevelopment Activities..................................................................................1 l <br /> 2.3 Well Replacement......................................................................................................11 <br /> 2.3.1 Well Destruction Activities............................................................................11 <br /> 2.3.2 Well Installations............................................................................................11 <br /> 2.4 Other Well Maintenance Activities............................................................................12 <br /> 3. GROUNDWATER MONITORING PROGRAM ..............................................................13 <br /> 3.1 Field Inspection and Depth to Water..........................................................................13 <br /> 3.2 Selection of Monitoring Wells for Sampling.............................................................13 <br /> 3.3 Sampling and Analysis...............................................................................................14 <br /> 3.3.1 Field Methods and Procedures.......................................................................14 <br /> 3.3.2 Laboratory Methods and Procedures..............................................................15 <br /> 4. INVESTIGATIVE DERIVED WASTE..............................................................................16 <br /> 5. SCHEDULE AND REPORTING .......................................................................................17 <br /> 6. REFERENCES ....................................................................................................................18 <br /> RRI 2025 Groundwater Monitoring Work Plan ii May 2025 <br />