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TAB 7 <br />• TABLE OF CONTENTS <br /> Page <br /> PREFACE P-i <br /> SECTION 7.1 - SENECA II-W BASELINE HYDROLOGIC DESCRIPTION 1 <br /> Regional Hydrogeology 1 <br /> Introduction 1 <br /> Topography 1 <br /> Lithology 1 <br /> Geologic Structures 3 <br /> Regional Ground Water Recharge, Movement and Discharge 3 <br /> Regional Ground Water Quality 3 <br /> Site-Specific Hydrogeology 5 <br /> Introduction 5 <br /> Baseline Ground Water Level 8 <br /> Alluvial Water Levels 8 <br /> Wadge Overburden Water Levels 12 <br /> Wedge Coal Water Levels 15 <br /> Wadge Underburden Water Levels 16 <br /> Wolf Creek Coal Water Levels 16b <br />• Trout Creek Sandstone Water Levels 18 <br /> Potentiometric Surfaces 18 <br /> Recharge 20 <br /> Hydrologic Boundaries 21 <br /> Infiltration and Permeability of the Unsaturated ZoneDischarge 21 <br /> Discharge 24 <br /> Aquifer Characteristics 28 <br /> Ground Water Chemistry 34 <br /> Site-Specific Ground Water Chemistry 35 <br /> Suspect Ground Water Chemistry 36 <br /> Alluvial Aquifers 36 <br /> Wadge Overburden Aquifer 45 <br /> Wadge Coal Aquifer 48 <br /> Wolf Creek Coal Aquifer 52 <br /> Ground Water Suitability 56 <br /> Present Ground Water Use 56 <br /> Potential Ground Water Use 56 <br /> Domestic Drinking Water Suitability 58 <br /> Aquatic Life Water Suitability 58 <br />• Irrigation Water Suitability 60 <br />i Revised 9198 <br />