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Eastern San Joaquin Groundwater Basin Groundwater Management Plan <br />Northeastern San Joaquin County Table of Contents <br />Groundwater Banking Authority vi <br />Table of Contents <br />Foreword..................................................................................................................................... iii <br />Acknowledgements................................................................................................................... iv <br />Table of Contents....................................................................................................................... vi <br />List of Abbreviations ................................................................................................................. ix <br />List of Figures............................................................................................................................ xi <br />List of Tables............................................................................................................................ xiii <br />Executive Summary.................................................................................................................... 1 <br />ES-1 Background......................................................................................................................1 <br />ES-2 Purpose and Objectives...................................................................................................1 <br />ES-3 Groundwater Management Area......................................................................................2 <br />ES-4 Agency Participation ........................................................................................................2 <br />ES-5 Consistency with Water Code Section 10750 et. seq......................................................5 <br />ES-6 Eastern San Joaquin County Hydrogeology....................................................................5 <br />ES-7 Basin Management Objectives ......................................................................................11 <br />ES-8 Groundwater Management Options...............................................................................11 <br />ES-9 Groundwater Contamination..........................................................................................14 <br />ES-10 Groundwater Monitoring and Science Program...........................................................14 <br />ES-11 Financing Options........................................................................................................15 <br />ES-12 Plan Governance .........................................................................................................15 <br />ES-13 Integrated Conjunctive Use Program...........................................................................16 <br />ES-14 Plan Implementation ....................................................................................................18 <br />ES-15 Future Activities............................................................................................................18 <br />1 Introduction....................................................................................................................... 20 <br />1.1 Background.................................................................................................................20 <br />1.2 Purpose and Objectives..............................................................................................21 <br />1.3 Groundwater Management Area.................................................................................22 <br />1.4 Agency Participation....................................................................................................26 <br />1.5 Consistency with Water Code Section 10750 et. seq. ................................................27 <br />1.6 Current Groundwater Management Efforts.................................................................28 <br />1.6.1 Overview of Existing Groundwater Management Plans..........................................28 <br />1.6.2 Overview of Existing Urban Water Management Plans ..........................................32 <br />1.6.3 Overview of Groundwater Management by San Joaquin County ...........................34 <br />1.6.4 Overview of Groundwater Management Outside the GMA.....................................36 <br />2 Hydrogeology....................................................................................................................38 <br />2.1 Regional Geology and Stratigraphy ............................................................................38 <br />2.2 Surface Water Features..............................................................................................40 <br />2.2.1 Delta........................................................................................................................40 <br />2.2.2 Calaveras River.......................................................................................................43 <br />2.2.3 Mokelumne River ....................................................................................................43 <br />2.2.4 Stanislaus River ......................................................................................................43 <br />2.2.5 San Joaquin River...................................................................................................44 <br />2.2.6 Other Rivers............................................................................................................44 <br />2.2.7 Surface Water Quality.............................................................................................44 <br />2.3 Regional Groundwater Flow Patterns .........................................................................45