2020-12-08_REVISION - M2008078 (27)

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J&T Consulting, Inc. Prowers Aggregate Operators LLC ' West Farm Pit 12/4/2020 FRamation Bond Quantities and Costs T Consulting,Inc. Summary of Unit Costs Costs Taken from TR S and Amendment i Bond Calculation by DRMS Direct costs Full Cost Backfill Placement $3.00 /cyd Scarifying Ground $321.55 /acre Re-applying topsoil 12"thick $2,541.03 /acre Revegetating disturbed area $1,100.32 /acre Mobilization $54,000.00 lump sum Slurry Wall Cost Breakdown($5.67 per sq-ft) 20%Cost Slurry Wall Cost(30 foot average depth) $170 /linear foot $34 /linear foot Slurry Wall Cost(35 foot average depth) $198 /linear foot $40 /linear foot Slurry Wall Cost(40 foot average depth) $227 /linear foot $45 /linear foot Slurry Wall Cost(50 foot average depth) $284 /linear foot $57 /linear foot Slurry Wall Cost(60 foot average depth) $340 /linear foot $68 /linear foot Slurry Wall Cost(70 foot average depth) $397 /linear foot $79 /linear foot Overhead and Profit Costs Liability insurance 2 02% of direct cost Performance bond 1.05% of direct cost Profit 10 00% of direct cost Total Overhead Cost 13.07% of direct cost Project Management Engineering and bidding 2.00% of direct cost Management and administration 5.00% of direct cost Total Additional Cost 7.00% of direct cost Disturbed Areas (Reclamation of These Areas are Complete) Reclamation Operation Quantity Unit Unit Cost Cost Disturbed Areas West of Pit Road Adiacent to Phase 1/Ditch to River Scarify Ground in Disturbed Area 3.09 ac $322 $994 Topsoil Disturbed Area 3.09 ac $2,541 $7,852 Revegetate Disturbed Area 3.09 ac $1,100 $3,400 Parking Area Scarifying Ground in Disturbed Area 3.16 ac $322 $1,016 Topsoil Placement in Disturbed Area 316 ac $2,541 $8,030 Revegetate Disturbed Area 3.16 ac $1,100 $3,477 Total Direct Cost $24,768 Overhead and Profit Cost(13.07%) $3,237 Contract Cost $28,005 Project Management(7.00%) $1,734 Financial Warranty Required For Disturbed Areas $29,739 1 of 5