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Reclamation Cost Estimate Update(12/2/2019)-Henderson Mine and Mill <br /> Material List for Reclamation Cost Model <br /> Material Cost/Unit Materials Units of Measure Source <br /> Excavate rock S 3.49 cuyd RSMeans 2019/3123 16.13 6110 <br /> Drain rock $ 25.85 cuyd RSMeans 2019/33 4123.19 0300 <br /> Perforated pipe 8"dia. $ 5.29 LF RSMeans 2019/33 4116.35 0080 <br /> Geotextile $ 1.98 sqyd RSMeans 2019/33 4123.19 0110 <br /> Signs $ 118.41 each RSMeans 2019/10 14 53.20 0600,1500 <br /> 30"corrugated HDPE $ 31.80 LF RSMeans 2019/33 42 11.501080 <br /> Rip Rap Armoring(12-24"DSO) $ 32.08 cuyd Actuals(Climax ESC 2005,Pinto Valley 4DEC 2010&1DEC 2012) <br /> 42-48"HDPE pipe and bedding $ 177.12 LF previous estimate inch bedding or mounding <br /> Geogrid $ 4.25 sqyd Tensar quote,1/29/2019 <br /> Seeding-Drill Seed $ 788.89 acre previous estimate^2/3x Reveg-Drill Seed(assume quantity typically 25%of reveg.acreage) <br /> Reveg-Drill Seed $ 1,183.33 acre previous estimate$618+seed mix,therefore taken at"2/3x Reveg-Hydroseeding <br /> Reveg-Hydroseeding $ 1,775.00 acre Slater Seeding quote,2017 <br /> Seeding-Tree&Shrub $ 1,114.04 acre previous estimate(assume quantity typically 25%of reveg.acreage) <br /> Reveg-Tree&Shrub $ 1,114.04 acre previous estimate <br /> Maintenance Fertilization $ 177.50 acre previous estimate$120.12,now 10%Slater quote per Habitat memo,2019 <br /> Shaft plug $ 150,000.00 each previous estimate <br /> Spillway Inlet Structure $ 100,000.00 each estimate by others <br />