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TABLE OF CONTENTS <br /> <br /> South Taylor/Lower Wilson - iii Revision Date: 2/13/20 <br /> Revision No.: TR-135 <br />4.05.1 General Requirements .................................................................................................. 3  <br />4.05.3 Diversions and Conveyance of a Watershed Less than One Square Mile .................... 3  <br />4.05.4 Stream Channel Diversions (Relocation of Streams) ................................................... 3  <br />4.05.5 Sediment Control Measures ......................................................................................... 4  <br />4.05.6 Sedimentation Ponds .................................................................................................... 4  <br />4.05.7 Discharge Structures..................................................................................................... 6  <br />4.05.8 Acid-forming and Toxic-Forming Spoil ...................................................................... 6  <br />4.05.9 Post-Mining Impoundments ......................................................................................... 6  <br />4.05.10  Underground Mine Entry and Access Discharges ........................................................ 6  <br />4.05.11  Groundwater Protection .............................................................................................. 6  <br />4.05.12  Protection of Groundwater Recharge Capacity ........................................................... 6  <br />4.05.13  Surface and Groundwater Monitoring .......................................................................... 6  <br />4.05.14 – 4.05.18 Various Topics ................................................................................................................. 7  <br />4.06 TOPSOIL ......................................................................................................................... 7  <br />4.07 SEALING OF DRILLED HOLES AND UNDERGROUND OPENINGS .................... 7  <br />4.08 USE OF EXPLOSIVES ................................................................................................... 7  <br />4.08.2 Pre-Blast Survey ........................................................................................................... 7  <br />4.09 DISPOSAL OF EXCESS SPOIL .................................................................................... 7  <br />4.10 – 4.12 DISPOSAL OF EXCESS SPOIL .................................................................................... 9  <br />4.13 CONTEMPORANEOUS RECLAMATION .................................................................. 9  <br />4.14 BACKFILLING AND GRADING................................................................................ 10  <br />4.14.1 General Requirements ................................................................................................ 10  <br />4.14.2 General Grading Requirements .................................................................................. 10  <br />4.14.3  Covering Coal and Acid and Toxic Forming Materials ............................................. 11  <br />4.14.4 Thin Overburden ........................................................................................................ 11  <br />4.14.5  Thick Overburden ...................................................................................................... 11  <br />4.14.6 Re-grading or Stabilizing Rills and Gullies ................................................................ 11  <br />4.15 REVEGETATION REQUIREMENTS ......................................................................... 11  <br />4.15.1 – 4.15.7 Revegetation Requirements, Various ......................................................................... 11  <br />4.15.8 Revegetation Success Criteria .................................................................................... 11  <br />4.15.9 Cropland Revegetation Success ................................................................................. 11  <br />4.15.10  Previously Mined Land Revegetation Success Criteria ............................................. 11  <br />4.16 POSTMINING LAND USE .......................................................................................... 12  <br />4.16.1 General ....................................................................................................................... 12  <br />4.16.2 Determining Use of Land ........................................................................................... 12  <br />4.16.3 Alternative Land Uses ................................................................................................ 12  <br />4.17 AIR RESOURCES PROTECTION .............................................................................. 12  <br />4.18 PROTECTION OF FISH, WILDLIFE, AND RELATED VALUES ........................... 12  <br />4.19 PROTECTION OF UNDERGROUND MINING ......................................................... 13  <br />4.20 SUBSIDENCE CONTROL ........................................................................................... 13  <br />4.21 COAL EXPLORATION ............................................................................................... 13  <br />4.22 CONCURRENT SURFACE AND UNDERGROUND MINING ................................ 13  <br />4.23 AUGER AND HIGHWALL MINING ............................................................................................... 13  <br />4.23.1 Scope 13  <br />4.23.2 Maximize Recoverability of Mineral Reserves .......................................................... 13  <br />4.23.2(2) Abandoned or Active Underground Mine Workings ................................................................. 14  <br />4.23.2(3) Surface Mining Activities and Highwall Mining ....................................................................... 14  <br />4.23.2(4) Prevent Pollution of Surface and Groundwater and to Reduce Fire Hazards ........................... 14  <br />4.23.2(6) Division Shall Prohibit Auger (Highwall Mining) Mining ........................................................ 15  <br />4.23.2(7) Backfill and Grading Requirements ........................................................................................... 15  <br />4.24 OPERATIONS IN ALLUVIAL VALLEY FLOORS ................................................... 15