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Doc Date:12/11/2001 <br />t sss - -° <br />I- <br />~~ <br />TABLE OF CONTENTS <br />~) Page <br />LIST OF FIGURES.........' ...................................... ii <br />LIST OF TABLES. iii <br />SUMMARY AND CONCLUSIONS.~ ...................................... 1 <br />1, INTRODUCTION........... ~ .................................... 3 <br />GEOLOGIC SETTING..... <br />.. ................................... 3 <br />~J Stratigraphy ............................................. 4 <br />Structure and History .................................... 7 <br />Geomorphotagy ............................................ B <br />~ HYDROLOGIC SETTING ................................ 10 <br />~~ GROUNO WATER .................................................. 14 <br />Bedrock Studies .......................................... 15 <br />Mathematical Estimate of Maxwell Mine Inflows............ 24 <br />I~ Computation of Model Parameters ..................... 27 <br />Computation of Inflows .............................. 30 <br />Alluvial Studies ................................... 31 <br />~' WATER QUALITY ...........:..................................... 35 <br />Maxwell Mine ............................................. 35 <br />is <br />~~ Allen Mine ............................................... 42 <br />Climatic Summary .................................... 44 <br />~ Potential Evapotranspiration ........................ 44 <br />' Surface Water Budget ................................ 49 <br />Subsurface Water Budget ............................. 49 <br />Hydrologic 8aiance Summary .......................... 50 <br />Effect of Dump on Stream Quality .................... 50 <br />Deterioration of Stream Quality Not Related to Maxwell <br />and Allen Mtnes ........................................ 55 <br />HYDROLOGIC BALANCE ............................................ 56 <br />Bedrock Ground Water ..................................... 56 <br />Stream and Near-Surface Ground Waters .................... 58 <br />~ MONITORING PROGRAM .................................... ...... 59 <br />REFERENCES CITED .............................................. 60 <br />APPENDICES <br />A HYDRAULIC PROPERTIES OF CORE SAMPLES <br />B AQUIFER TEST DATA AND COMPLETION DETAILS <br />