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Mt Taylor Mine Closeout/Closure Plan <br /> April 2022,Rev 2 <br /> Table 4.3 Earthwork Balance <br /> EXCAVATION-Contaminated Soil <br /> LOCATION Volume,CY Destination <br /> Treated Water Discharge Pipeline(TWDP)Corridor 8400 <br /> Area C north of Marquez Arroyo(Including hotspots 25000 <br /> identified by ERG survey) <br /> Ore Pad and Ore Pad Runoff Retention Pond 91400 <br /> MWTU Area less pond basins and Borrow area A 29100 <br /> County Road 334 and Other roads 12000 Disposal Cell <br /> Service and Support Areas 106950 <br /> Disposal Cell Expansion Pit Area 9300 <br /> SSWP Area 3000 <br /> Continental Divide Coop Substation 1850 <br /> Total 287000 <br /> EXCAVATION-Clean Soil <br /> LOCATION Volume,LCY Destination <br /> Borrow Area A and C North of Marquez arroyo' 45500 Waste Pile/Disposal Cell-Clay Cover and Liner <br /> MWTU Area 141900 Establishing final grades in MWTU area <br /> Ore Pad and North Diversion channel 12600 Establishing final grades in Ore Pad area <br /> Service and Support Area including chiller bench and 56000 General fill in Service and Support area <br /> north parking lot <br /> Final Grading Around the Car Shop(Cut existing grades by 9300 General fill for north side of Disposal cell <br /> 2 to 3 feet <br /> Disposal Cell expansion pit 44000 Waste Pile/Disposal Cell-loam cover <br /> Total 309300 <br /> Fill-Clean Soil <br /> LOCATION Volume,LCY Sources <br /> MWTU Area 141900 Rough grading for establishing final grades <br /> Ore Pad and North Diversion channel 12600 Rough grading for establishing final grades <br /> Service and Support Area 52700 Chiller bench and North Parking lot <br /> Fill For shaft plugs and other misc structures 3400 Chiller bench and North Parking lot <br /> Fill needed for Disposal cell berms,liners,and cover 98700 Disposal cell pit and grading around Car shop <br /> Total 309300 <br /> FINAL GRADING NOTES <br /> LOCATION Area,SY 1)Soil must meet project specifications for Clay <br /> Treated Water Discharge Pipeline Corridor 70750 <br /> Area C north of Marquez Arroyo 104850 <br /> Ore Pad 58225 <br /> Ore Pad Runoff Retention Pond 9640 <br /> Borrow Area A 38270 <br /> Borrow Area B 29800 <br /> MWTU Area 198416 <br /> County Road 334 35150 <br /> Mine Access Road 0 <br /> Old Ore Load-out Pit 17850 <br /> Shaft areas 18375 <br /> Service and Support Area(lessbBuilding areas) 46082 <br /> Chiller bench 20116 <br /> compresser bench 21958 <br /> Car Shop Area 30693 <br /> Waste Rock Pile/Disposal pit 93412 <br /> Substation 4400 <br /> Total 797986 =164.9 acres <br />