2020-07-06_REVISION - M1984041

• Permit No: M1984041
• IBM Index Class Name: REVISION
• Doc Date: 7/6/2020
• Doc Name: Request For Amendment To Permit
• From: American Gypsum Co.
• To: DRMS
• Type & Sequence: AM4
• Email Name: SJM
• Email Name: THM
• Media Type: D
• Archive: No

2019 Plan of Operations Modification American Gypsum Company, LLC
5.0 LEGAL DESCRIPTION AND OWNERSHIP ...................................................................18
5.1 Legal Description..........................................................................................................18
5.2 Surface and Mineral Ownership...................................................................................18
5.3 General Description......................................................................................................18
5.4 Access..........................................................................................................................18
5.5 Primary Mine Entrance Location ..................................................................................19
5.6 Permanent Man-Made Structures ................................................................................19
6.0 MINING PLAN .................................................................................................................20
6.1 Commodity ...................................................................................................................21
6.2 Scope of Operation.......................................................................................................21
6.3 Period of Operation ......................................................................................................22
6.4 Annual Operation..........................................................................................................23
6.5 General Schedule of Operations..................................................................................23
6.6 Roads and Utilities........................................................................................................24
6.6.1 Roads....................................................................................................................24
6.6.2 Haul Routes...........................................................................................................25
6.6.3 Other Utilities.........................................................................................................25
6.7 Equipment ....................................................................................................................25
6.8 Soil, Waste, and Mineable Material..............................................................................27
6.9 Exploration Operations.................................................................................................28
6.10 Operating Practices......................................................................................................29
6.10.1 Mining Methods.....................................................................................................29
6.10.2 Underground Operations.......................................................................................30
6.11 Use and Occupancy.....................................................................................................30
6.12 Hazmat.........................................................................................................................31
6.13 Rock Characterization and Handling Plans..................................................................31
6.13.1 Materials Characterized ........................................................................................31
6.13.2 Approach/Procedure for Characterization.............................................................32
6.13.3 Waste Rock (Intraburden/Overburden) Management Plan ...................................32
6.14 Quality Assurance Plan for Proposed Activities ...........................................................32
6.15 Spill Contingency Plan..................................................................................................32
6.16 Monitoring and Inspections...........................................................................................32
6.17 Interim Management Plan for Cessation of Activities...................................................34
Am Gypsum Poo Mod ISSD 20190909 September 2019 R1