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TABLE OF CONTENTS <br />INTRODUCTION .................................................................................. <br />PURPOSE ......................................................................................................................... ........................................... I <br />OVERVIEW OF 2000 MiNMG ACTIVITIES ........................................................................ ........................................... 1 <br />Thermal Even1 ........................................................................................................... ........................................... 1 <br />Longwnll Mining ....................................................................................................... ........................................... / <br />Developmen( Mining ................................................................................................. ........................................... l <br />HYDROLOGIC CHARACTERIZATION OF 2000 WATER YEAR ........................................... ........................................... 1 <br />Climatological Data ................................................................................................. ........................................... 1 <br />Hydrological Da(a .................................................................................................... ...........................................2 <br />Hl'DROLOCIC MONITORING ACTIVITIES ......................................................................................................5 <br />SURFACE WATER MONITORING ............................................................................ ..................................................... S <br />Sampling Methods ........................................................................................... ..................................................... S <br />SEEPS .4ND SPRINGS MONITORING ........................................................................ ..................................................... S <br />Sampling Medlods ........................................................................................... ..................................................... 8 <br />GROUNDWATER MONITORING .............................................................................. .....................................................8 <br />UNDERDRAIN AND M INF. WATER MONITORING ................................................... ................................................... 1 Z <br />Sampling Methodc ........................................................................................... ...................................................12 <br />MINE WATER MANAGEM1IENT ACTIVITIES ...................................................................................................14 <br />NORTH FORK WATER RIGHTS ......................................................................... ........................................................ 14 <br />SANITARY WASTEN'ATER ................................................................................ ........................................................ 14 <br />SEDIMENTATION PONDS .................................................................................. ........................................................ 17 <br />Ponds MB-l and A4B-2R ............................................................................ ........................................................ 17 <br />Ponds MB-3. MB-4 and MB-5 ................................................................... ........................................................ 17 <br />• <br />Pond FW-1 ................................................................................................. ........................................................ l8 <br />RPE Pond ................................................................................................... ........................................................ !8 <br />Pond SG-1 ................................................................................................. ........................................................ lR <br />BIOMONITORING TESTING FOR TOXIGITY ........................................................ ........................................................ 18 <br />MINE WATER INFLOW5 ................................................................................... ........................................................ 19 <br />NW Panels Sealed Sump ............................................................................ ........................................................ 19 <br />NE Panels Sealed Sump ............................................................................. ........................................................ 20 <br />Snmple.s nJAJine 14~'a(er ln/lon•.s ................................................................. ........................................................ 20 <br />MINE WATER BALANCE .................................................................................. ........................................................20 <br />ASSESSMENT OF MINING IMPACTS TO HYDROLOGIC RESOURCES ...................................................23 <br />SURFACE WATER IMPACTS ........................................................................... ........................................................... 23 <br />Jmpacl ojTOS on the Nortli Fork ........................................................... ........................................................... 23 <br />SEEPS AND SPRINGS IMPACTS ....................................................................... ...........................................................24 <br />Spring Wa(er Qualih• Data ..................................................................... ........................................................... 24 <br />STOCK PONDS .............................................................................................. ........................................................... 24 <br />GROUNDWATER IMPACTS ............................................................................. ...........................................................25 <br />ADEQUACY OF MONITORING PROGRAM <br />26 <br />C~ <br />