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TABLE OF CONTENTS <br />4.05.7 <br />Discharge Structures........................................................................................................6 <br />4.05.8 <br />Acid-forming and Toxic -Forming Spoil..........................................................................7 <br />4.05.9 <br />Post -Mining Impoundments............................................................................................7 <br />4.05.10 <br />Underground Mine Entry and Access Discharges...........................................................7 <br />4.05.11 <br />Groundwater Protection...................................................................................................7 <br />4.05.12 <br />Protection of Groundwater Recharge Capacity...............................................................7 <br />4.05.13 <br />Surface and Groundwater Monitoring.............................................................................8 <br />4.05.14 <br />Transfer of Wells...........................................................................................................12 <br />4.05.15 <br />Water Rights and Replacment.......................................................................................12 <br />4.05.16 <br />Dischrage of Water into an Underground Mine............................................................12 <br />4.05.17 <br />Postmining and Rehabilitation of Sediment Pond, Diversions, Impoundments, and <br />TreatmentFacilities.......................................................................................................12 <br />4.05.18 <br />Stream Buffer Zones......................................................................................................12 <br />4.06 <br />TOPSOIL............................................................................................................................13 <br />4.07 <br />SEALING OF DRILLED HOLES AND UNDERGROUND OPENINGS ........................13 <br />4.08 <br />USE OF EXPLOSIVES......................................................................................................14 <br />4.08.2 <br />Pre -Blast Survey............................................................................................................14 <br />4.09 <br />DISPOSAL OF EXCESS SPOIL........................................................................................14 <br />4.10-4.12 <br />COAL MINE WASTE BANKS, COAL MINE WASTE, SLIDES AND OTHER <br />DAMAGE............................................................................................................................16 <br />4.13 <br />CONTEMPORANEOUS RECLAMATION......................................................................16 <br />4.14 <br />BACKFILLING AND GRADING.....................................................................................17 <br />4.14.1 <br />General Requirements....................................................................................................17 <br />4.14.2 <br />General Grading Requirements.....................................................................................18 <br />4.14.3 <br />Covering Coal and Acid and Toxic Forming Materials.................................................18 <br />4.14.4 <br />Thin Overburden............................................................................................................18 <br />4.14.5 <br />Thick Overburden..........................................................................................................18 <br />4.14.6 <br />Re -grading or Stabilizing Rills and Gullies...................................................................18 <br />4.15 <br />REVEGETATION REQUIREMENTS...............................................................................19 <br />4.15.1 — 4.15.7 <br />Revegetation Requirements, Various.............................................................................19 <br />4.15.7 <br />Determining Revegetation Success: General Requirements and Standards <br />.................21 <br />4.15.8 <br />Revegetation Success Criteria.......................................................................................22 <br />4.15.9 <br />Cropland Revegetation Success.....................................................................................28 <br />4.15.10 <br />Previously Mined Land Revegetation Success Criteria................................................28 <br />4.15.11 <br />Revegetation Sampling Methods and Statistical Demonstrations for <br />Revegetation <br />Success Revegetation Community Mapping / Stratification.........................................28 <br />4.16 <br />POSTMINING LAND USE.................................................................................................33 <br />4.16.1 <br />General...........................................................................................................................33 <br />4.16.2 <br />Determining Use of Land..............................................................................................33 <br />4.16.3 <br />Alternative Land Uses...................................................................................................33 <br />4.17 <br />AIR RESOURCES PROTECTION.....................................................................................33 <br />4.18 <br />PROTECTION OF FISH, WILDLIFE, AND RELATED VALUES..................................33 <br />4.19 <br />PROTECTION OF UNDERGROUND MINING...............................................................35 <br />4.20 <br />SUBSIDENCE CONTROL.................................................................................................35 <br />4.21 <br />COAL EXPLORATION......................................................................................................35 <br />4.22 <br />CONCURRENT SURFACE AND UNDERGROUND MINING.......................................35 <br />4.23 <br />AUGER AND HIGHWALL MINING................................................................................35 <br />4.24 <br />OPERATIONS IN ALLUVIAL VALLEY FLOORS.........................................................35 <br />4.25 <br />OPERATIONS ON PRIME FARMLANDS........................................................................36 <br />4.26 <br />MOUNTAINTOP REMOVAL............................................................................................36 <br />4.27 <br />OPERATIONS ON STEEP SLOPES..................................................................................36 <br />Revision Date: 6/16/17 <br />Revision No.: MR -176 <br />