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M-1990-057 Attachment <br /> Reclamation Cost Estimate <br /> Leadville Mill <br /> Lake County,Colorado <br /> Task 4 Process Remaining RoM cost <br /> No. Task Description City Unit Rate($/ton) Notes <br /> Material ($) <br /> alA,,ome piant is atrw laparnv atbme of 1 Crush Coarse Ore 35 tons $ 4.11 $ 144.00 Based on UMCTechnical Model <br /> �edamauon.0!y matedanotal 3s1 cnar:e nre bin. Grind Coarse Ore and Fine <br /> M fine ore bin=1351total material. <br /> b)Oper as atingcosts bedon UMC's Txh.—IE. 2 Ore 135 tons $ 2.62 $ 354.00 $4.72 basis without recirculatingload factor,1.8 <br /> c <br /> omldenodel M 25vd(3.2svh @ 20nr/aav) 3 Neutralize material with Lime 1 ton $ 400.00 5 400.00 $400/st-deliveredprice. <br /> )All material and water in oall min,conditioning <br /> ank.Float celk and thickeners will oe pumped ou at Flush System with process <br /> loa as dry material.10--1 wdlx w 4 Iwater 135 tons I$ 0.25 $ 34.00 iPumpingcost. <br /> —r,gh ban mdl,men roues through nowt cal:and 5 Labor(2 personnel) $ 2,500.00 12 personnel each @$35/hr <br /> p tailings tbicke�FeF before reporting to TSF. <br /> Lime will be added at ball mill to neat raliie <br /> material.Mrtallurgicalteztw°rk on Cross Mine ore <br /> indicates 3.dkg of lime I[alORbl is requiredt°bring <br /> W to 9.0.For purpose of this estimate,assume 2x <br /> his will be required.6.8kg/tonne=13.61b/st <br /> =0.002sthme per st-ore.Given 135 st of ore must <br /> ltetreated,then:0=O ,-lime/storeM 135s1-ore= <br /> %5st-lime is required.Assume 1st lime will be <br /> required. <br /> d)Process water 3,9[01 w pumped lhr h <br /> loat cells and concentrate and tailings thickener to <br /> 5F.Reagents in the system will also be pumped <br /> outwdhtheprocess--Thiswindii—the <br /> reagent:andf1 dIthepl,-,rktem.Reagent <br /> ant in Mesystem is mimr and will nave di <br /> us arfect on tanings cnemist ry m me TSF. <br /> )Freshwater I0.600ganvill De drained into sewer <br /> ystem via eravar. <br /> Task 4:Process Remaining RoM cost estimte total $ 3,432.00 <br /> Page 4 of 5 <br /> Appendix_5-2_Reclamation Cost Summary(AR1Response).xlsx <br />