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2019 Plan of Operations Modification American Gypsum Company, LLC <br /> 6.17.1 Measures to Stabilize Excavations and Workings.................................................34 <br /> 6.17.2 Measures to Isolate or Control Toxic or Deleterious Materials..............................34 <br /> 6.17.3 Provisions for the Storage or Removal of Equipment, Supplies, and Structures ..34 <br /> 6.17.4 Measures to Maintain the Project Area in a Safe and Clean Condition ................34 <br /> 6.17.5 Plans for Monitoring Site Conditions during Periods of Non-Operation.................35 <br /> 6.17.6 Schedule of Anticipated Periods of Temporary Closure........................................35 <br /> 7.0 RECLAMATION PLAN....................................................................................................36 <br /> 7.1 Drill Hole Plugging........................................................................................................37 <br /> 7.2 Regrading/Reshaping...................................................................................................37 <br /> 7.3 Mine Reclamation.........................................................................................................38 <br /> 7.4 Riparian Mitigation........................................................................................................38 <br /> 7.5 Wildlife Habitat Rehabilitation.......................................................................................38 <br /> 7.6 Growth Medium Handling.............................................................................................38 <br /> 7.7 Revegetation ................................................................................................................39 <br /> 7.8 Deleterious Materials....................................................................................................40 <br /> 7.9 Buildings, Structures, and Support Facilities................................................................40 <br /> 7.10 Post-Closure Management...........................................................................................40 <br /> 8.0 WATER MANAGEMENT.................................................................................................42 <br /> 8.1 Relationship to Surface Water and Groundwater.........................................................42 <br /> 8.2 Water Use.....................................................................................................................42 <br /> 8.3 Surface Water Management.........................................................................................42 <br /> 8.3.1 Existing Sediment Ponds ......................................................................................42 <br /> 8.3.2 Stormwater Runoff within Disturbance Areas........................................................44 <br /> 8.3.3 Culverts .................................................................................................................44 <br /> 8.3.4 Reclamation ..........................................................................................................45 <br /> 9.0 RECLAMATION COST ESTIMATE ................................................................................46 <br /> 10.0 OTHER PERMITS AND LICENSES................................................................................47 <br /> 11.0 GEOTECHNICAL STABILITY.........................................................................................48 <br /> 12.0 REFERENCES.................................................................................................................49 <br /> LIST OF TABLES <br /> Table 1.1: Permit Area Summary...........................................................................................3 <br /> Am Gypsum Poo Mod ISSD 20190909 September 2019 IN] <br />