2019-11-21_REVISION - M2004044 (45)

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Unit Reclamation Operation Quantity Units Cost $ Cost($) Active Mining Area(South Cell and remaining disturbance East Cell 1 Backfill remaining East Cell mining face and side 93,150 CY $3.50 $326,025 slopes to 3HAV(2,300'X(27'X 81'X 0.5) 2 Rough grade disturbed areas in East cell(85'x 7,240 CY $0.50 $3,620 2,300 x 1 ) 3 Replace topsoil on backfilled mining cell area 49,610 CY $1.05 $52,091 above the HWL of the reservoir(61.5 acres x 0.5') Final grade East cell 5,100 CY $0.50 $2,550 4 (85'x 2,300'x 0.5')+(800'x 100'x 0.5') 5 Backfill South Cell 700,000 Tons $2.50 $1,750,000 6 Replace Topsoil South Cell 11,858 CY $1.05 $12,451 Miscellaneous Disturbed Areas(Stockpiles, Haul Roads, Conveyor route 1 Replace topsoil on internal haul roads and main 2,420 CY $1.05 $2,541 site entrance(3 acres x 0.5') 2 Replace topsoil on conveyor route 2,662 CY $1.05 $2,795 (3.3 acres X.5') 3 Replace topsoil on stockpile area 4,033 CY $1.05 $4,235 (5 acres x 0.5') 4 Scarify internal haul roads and conveyor route 8.3 Acre $500 $4,150 areas 5 Final grade all miscellaneous areas(8.3 acres x 6,695 CY $0.50 $3,348 0.5') Final Reclamation Disturbed 1 Seed backfilled South Cell 15 Ac $675 $ 10,125 Acreage 2 Seed all areas in East Cell above the HWL of 73 Ac $675 $49,275 the reservoir 3 Re-seed 20%of all areas in Area of disturbance above the HWL of the 15 Ac $675 $10,125 reservoir Total Reclamation Costs $2,233,330 Contractor Mobilization/Demobilization Costs(8%) 0.08 $178,666 Overhead (18.5%) 0.185 $413,166 Administration (5%) 0.05 $111,666 Total Proposed Financial Warranty $2,936,828 Disturbed Acreage 103 Financial Warranty per Acre $28,513 Aggregate Industries Tucson South Resource Permit#M-2004-044 112 Permit Amendment Page L-2