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to the appropriate state and federal agencies prior to beginning work if not in accordance with this <br /> Modification. <br /> 2~17 Interim ManagementPlan for Cessation ofActivities <br /> The proposed activities are e continuation of existing mining activities and there ianoanticipated <br /> break orgap by American Gypsum between existing and proposed mining activities. However, if <br /> temporary cessation of mining activities are determined to be required, American Gypsum would <br /> perform the activities outlined below to prevent undue and unnecessary degradation of facilities, <br /> lands, and resources during 8n unplanned period ofnon-mpereUon. <br /> 2'17'1 Measures to Stabilize Excavations and Workings <br /> Pit slopes and pit floors would be assessed and any minor grading would be performed to <br /> ensure drainage into a low area of the pit floor, located ovvoy from pit walls (only minor <br /> grading would be required to prepare the pits for a temporary shutdown, as this would be <br /> part ofnormal operational practices); <br /> Pit berms vvnu|d be inspected and nap8inad as necessary to maintain @ continuous berm <br /> around pits; <br /> Stockpiles and un-vegetated progressive reclamation slopes would be stabilized; <br /> Sediment control structures would be cleaned out to maintain the full capacity; and <br /> Sediment control structure outlets (standpipes, api|!vwaye, etc.) would be inspected and <br /> repaired aanecessary. <br /> 2.17.2 Measures to Isolate or Control Toxic or Deleterious Materials <br /> Dust suppression surfactants or other oharnica|e or deleterious materials (none <br /> anticipated)would be relocated to the Plant. <br /> 2'17'3 Provisions for the Storage or Removal of Equipment, Supplies, and <br /> Structures <br /> Equipment would be removed from the Mine; and <br />� Temporary facilities such oaneatroon)e. office trailers, etc. would be locked and secured. <br /> 2'17'4 Measures to Maintain the Project Area in a Safe and Clean <br /> Condition <br />� <br />� The Mine would generally be inspected and cleaned up. All garbage would be removed from <br />� the Mine and any loose rnohehe| (i.e. boxea, peckaginQ, etc.) would be removed or <br />� otherwise secured iO locked office buildings; <br />� Roads would be assessed to ensure the n}@d grades drain 8t approximately 1Y6 on either <br /> aide of the road (from the road centerline) to prevent water acCurDu|8tiOn (roads will be <br />� maintained as such during normal mining operations and only rninorgr8ding may be <br /> required during a temporary ahutdovvn); <br /> Road berms would be inspected and repaired aS necessary; and <br />� <br />� <br />� z-7 <br />� <br />� <br />