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Attachment for Exhibit L <br /> Nissen Gravel Mine - Reclamation Cost Estimate -3-7-18 <br /> Activity Quantity Units Unit Costs Cost <br /> A. Phase 1 <br /> 1 Final grade and place 6"of topsoil on the permiter area and <br /> disturbed 55 acre Phase 1 Area 45,000 CY $ 1.05 $ 47,250.00 <br /> 2 Seed and mulch 55.00 Acres $ 977.00 $ 53,735.00 <br /> 3 Scarify round 55.00 Acres $ 150.00 $ 8,250.00 <br /> Subtotal $ 109,235.00 <br /> B. Phase 2 <br /> 1 Final grade and place 6"of topsoil on the disturbed areas <br /> (CCWCD Reharge Areas) 5,647 CY $1.05 $ 5,929.35 <br /> 2 Seed and mulch 7.00 Acres $977.00 $ 6,839.00 <br /> 3 Scarify ground 1 7.00 1 Acres 1 $150.00 1 $ 1,050.00 <br /> Subtotal $ 13,818.35 <br /> Subtotal $ 123,053,35 <br /> E. Processing Area. Sand,gravel,concrete and asphalt <br /> materials are a commodity and therefore no cost would be <br /> incurred for reclamation. In addition,the mobile sales <br /> office and scale will have a value that would offset any cost <br /> 1 Move serge piles into settling/silt pond 1,000 CY $ 1.05 $ 1,050.00 <br /> 2 Remove concrete pad for concrete plant 0 CY $ 65.00 $ - <br /> 3 Remove concrete pad for asphalt plant 0 CY $ 65.00 $ <br /> 4 Remove concrete pad for recycling plant 0 CY $ 65.00 $ - <br /> 5 Remove concrete footings for office 8 CY $ 65.00 $ 520.00 <br /> 6 Remove concrete base for scale 10 CY $ 65.00 $ 650.00 <br /> 7 Scarify ground 25.5 Acres $ 150.00 $ 3,825.00 <br /> 8 Spread 6"topsoil 20,589 CY $ 1.05 $ 21,618.45 <br /> 9 Seed and Mulch 25.5 Acres $ 800.00 $ 20,400.00 <br /> Subtotal $ 48,063.45 <br /> F. <br /> Slurry Wall Installation Cost per DRMS Bonding <br /> Requirement. 9,282 If of wall,assumed depth of 41'+3' <br /> into base(has been approved) <br /> 1 Excavation,Materials and Labor and Dewatering 0 Face Ft $ 5.00 $ <br /> Subtotal $ - <br /> Total Disturbance Costs $ 294,170.15 <br /> Indirect Costs <br /> Overhead&Profit <br /> Performance Bond(2.02%)-Based on DRMS estimate $ 5,942.24 <br /> Performance Bond(3.07%)-Based on DRMS estimate $ 3,088.79 <br /> Job Superintendent(240 hours @$75/hr)-Based on DRMS estimate $ 18,000.00 <br /> Contractor Mob and DeMob(3%)-Based on DRMS estimate $ 8,825.10 <br /> Contractor Overhead and Profit(10%)-Based on DRMS estimate $ 29,417.02 <br /> Subtotal $ 65,273.14 <br /> Contract Amount(direct+0&P) $ 359,443.29 <br /> Legal,Engineering&Project Management <br /> Financial warranty processing(legal/related costs)($500) $ 500.00 <br /> Engineering Work and/or contract/bid preparation(4.25%) $ 15,276.34 <br /> Reclamation management and/or administration(5%)-Based on DRMS estimate $ 17,972.16 <br /> Contingency(3%) $ 8,825.10 <br /> Subtotal $ 42,573.61 <br /> Total Indirect Costs $ 107,846.75 <br /> Total Bond Amount $ 402,016,90 <br />