2019-04-16_REVISION - C1981019 ‎(3)‎

• Permit No: C1981019
• IBM Index Class Name: Revision
• Doc Date: 4/16/2019
• Doc Name: Adequacy Review
• From: Tri-State Generation and Transmission Association, Inc
• To: DRMS
• Type & Sequence: MR200
• Email Name: ZTT
• Media Type: D
• Archive: No

TABLE OF CONTENTS
Table of Contents iii Date Revised: 4/16/19
Revision No: MR-200
4.05.3 DIVERSIONS AND CONVEYANCE OF OVERLAND FLOW AND SHALLOW GROUNDWATER FLOW AND
EPHEMERAL STREAMS DRAINING A WATERSHED LESS THAN ONE SQUARE MILE ..................................................... 9
4.05.4 STREAM CHANNEL DIVERSIONS (RELOCATION OF STREAMS) .................................................................. 9
4.05.5 SEDIMENT CONTROL MEASURES ............................................................................................................ 10
4.05.6 SEDIMENTATION PONDS ......................................................................................................................... 10
4.05.7 DISCHARGE STRUCTURES ....................................................................................................................... 12
4.05.8 ACID-FORMING AND TOXIC-FORMING SPOIL .......................................................................................... 13
4.05.9 PERMANENT AND TEMPORARY IMPOUNDMENTS .................................................................................... 13
4.05.10 UNDERGROUND MINE ENTRY AND ACCESS DISCHARGES .......................................................................... 15
4.05.11 GROUND WATER PROTECTION ................................................................................................................... 15
4.05.12 PROTECTION OF GROUNDWATER RECHARGE CAPACITY ............................................................................ 15
4.05.13 SURFACE AND GROUNDWATER MONITORING............................................................................................. 19
4.05.14 TRANSFER OF WELLS ................................................................................................................................. 24
4.05.15 WATER RIGHTS AND REPLACEMENT .......................................................................................................... 24
4.05.16 DISCHARGE OF WATER INTO AN UNDERGROUND MINE ............................................................................. 24
4.05.17 POST-MINING AND REHABILITATION OF SEDIMENTATION PONDS, DIVERSIONS, IMPOUNDMENTS, AND
TREATMENT FACILITIES ........................................................................................................................................... 25
4.05.18 STREAM BUFFER ZONES ......................................................................................................................... 25
4.06 TOPSOIL .......................................................................................................................................................... 28
4.06.1 GENERAL REQUIREMENTS ...................................................................................................................... 28
4.06.2 REMOVAL ............................................................................................................................................... 28
4.06.3 STORAGE ................................................................................................................................................ 29
4.06.4 REDISTRIBUTION .................................................................................................................................... 30
4.06.5 RECONDITIONING ................................................................................................................................... 30
4.07 SEALING OF DRILLED HOLES AND UNDERGROUND OPENINGS .................................................. 31
4.07.1 GENERAL REQUIREMENT ........................................................................................................................ 31
4.07.2 TEMPORARY SEALING ............................................................................................................................ 31
4.07.3 PERMANENT SEALING ............................................................................................................................ 31
4.07.4 ABANDONMENT IN DESIGNATED GROUNDWATER BASINS ..................................................................... 31
4.08 USE OF EXPLOSIVES ............................................................................................................................... 31
4.08.1 GENERAL REQUIREMENTS ...................................................................................................................... 31
4.08.2 PRE-BLASTING SURVEY ......................................................................................................................... 32
4.08.3 PUBLIC NOTICE OF BLASTING SCHEDULE ............................................................................................... 33
4.08.4 SURFACE BLASTING REQUIREMENTS...................................................................................................... 33
4.08.5 RECORDS OF SURFACE BLASTING ACTIVITIES ........................................................................................ 35
4.08.6 SEISMOGRAPHIC MEASUREMENTS .......................................................................................................... 35
4.09 DISPOSAL OF EXCESS SPOIL AND UNDERGROUND DEVELOPMENT FILL WASTE ............ 36
4.10 COAL PROCESSING WASTE BANKS .................................................................................................... 37
4.11 COAL PROCESSING WASTE .................................................................................................................. 38
4.11.1 BURNING ................................................................................................................................................ 38
4.11.2 BURNED WASTE UTILIZATION ................................................................................................................ 38
4.11.3 RETURN TO UNDERGROUND WORKINGS ................................................................................................ 38
4.11.4 DISPOSAL OF NONCOAL WASTE ............................................................................................................. 38
4.11.5 DAMS AND EMBANKMENTS .................................................................................................................... 39
4.12 SLIDES AND OTHER DAMAGE .............................................................................................................. 39
4.13 CONTEMPORANEOUS RECLAMATION ............................................................................................. 41
4.14 BACKFILLING AND GRADING .............................................................................................................. 42
4.14.1 GENERAL REQUIREMENTS ...................................................................................................................... 42
4.14.2 GENERAL GRADING REQUIREMENTS ...................................................................................................... 45