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 iv Date Revised: 4/16/19
Revision No: MR-200
4.14.3  COVERING COAL AND ACID AND TOXIC FORMING MATERIALS ............................................................. 46
4.14.4 THIN OVERBURDEN ................................................................................................................................ 46
4.14.5  THICK OVERBURDEN .............................................................................................................................. 46
4.14.6 REGRADING OR STABILIZING RILLS AND GULLIES ................................................................................. 46
4.15 REVEGETATION REQUIREMENTS ...................................................................................................... 47
4.15.1 GENERAL REQUIREMENTS ............................................................................................................................. 4 7
4.15.1(4) VEGETATION MONITORING ...................................................................................................................... 47
4.15.2 USE OF INTRODUCED SPECIES ....................................................................................................................... 48
4.15.3 SEEDING AND PLANTING ............................................................................................................................... 49
4.15.4 MULCHING AND OTHER SOIL STABILIZING PRACTICES ................................................................................. 49
4.15.5 GRAZING ....................................................................................................................................................... 50
4.15.6 FIELD TRIALS ................................................................................................................................................ 50
4.15.7 DETERMINING REVEGETATION SUCCESS: GENERAL REQUIREMENTS AND STANDARDS ........................ 61
4.15.8 REVEGETATION SUCCESS CRITERIA ....................................................................................................... 64
4.15.9 REVEGETATION SUCCESS CRITERIA: CROPLAND .................................................................................... 76
4.15.10 REVEGETATION SUCCESS CRITERIA: PREVIOUSLY MINED AREAS: AREAS TO BE DEVELOPED FOR
INDUSTRIAL OR RESIDENTIAL USE ........................................................................................................................... 76
4.15.11 REVEGETATION SAMPLING METHODS AND STATISTICAL DEMONSTRATIONS FOR REVEGETATION SUCCESS
REVEGETATION COMMUNITY MAPPING / STRATIFICATION ...................................................................................... 76
4.16 POSTMINING LAND USE ......................................................................................................................... 82
4.16.1 GENERAL ................................................................................................................................................ 82
4.16.2 DETERMINING USE OF LAND .................................................................................................................. 82
4.16.3 PRIOR TO RELEASE OF LANDS FROM THE PERMIT AREA IN ACCORDANCE WITH 3.03.1 (2) (C) ............... 82
4.17 AIR RESOURCES PROCTECTION ......................................................................................................... 82
4.18 PROTECTION OF FISH, WILDLIFE, AND RELATED ENVIRONMENTAL VALUES ................. 82
4.19 PROTECTION OF UNDERGROUND MINING ..................................................................................... 84
4.20 SUBSIDENCE CONTROL ......................................................................................................................... 84
4.21 COAL EXPLORATION .............................................................................................................................. 84
4.21.1 SCOPE ..................................................................................................................................................... 84
4.21.2  GENERAL RESPONSIBILITY OF PERSONS CONDUCTING COAL EXPLORATION ......................................... 84
4.21.3 REQUIRED DOCUMENTS ......................................................................................................................... 84
4.21.4 PERFORMANCE STANDARDS ................................................................................................................... 85
4.21.5 REQUIREMENTS FOR A PERMIT ............................................................................................................... 86
4.22 CONCURRENT SURFACE AND UNDERGROUND MINING ............................................................. 86
4.23 AUGER AND HIGHWALL MINING ....................................................................................................... 87
4.23.1  SCOPE ..................................................................................................................................................... 87
4.23.3  PERFORMANCE STANDARDS ................................................................................................................... 87
4.23.4 MAXIMIZE RECOVERABILITY OF MINERAL RESERVES ........................................................................... 87
4.23.5 UNDISTURBED AREAS OF COAL SHALL BE LEFT IN UNMINED SECTIONS ............................................... 88
4.23.6 ABANDONED OR ACTIVE UNDERGROUND MINE WORKINGS .................................................................. 88
4.23.7  SURFACE MINING ACTIVITIES AND HIGHWALL MINING ......................................................................... 88
4.23.8  PREVENT POLLUTION OF SURFACE AND GROUNDWATER AND TO REDUCE FIRE HAZARDS .................... 88
4.23.9 DIVISION SHALL PROHIBIT AUGER (HIGHWALL MINING) MINING .......................................................... 89
4.23.10 BACKFILL AND GRADING REQUIREMENTS .................................................................................................. 89
4.23.11 HIGHWALL SHALL BE ELIMINATED ............................................................................................................. 89
4.24 OPERATIONS IN ALLUVIAL VALLEY FLOORS.................................................................................................... 89
4.25 OPERATIONS ON PRIME FARMLANDS ............................................................................................................... 89
4.26 MOUNTAINTOP REMOVAL ................................................................................................................................ 90
4.27 OPERATIONS ON STEEP SLOPES ........................................................................................................................ 90