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The Leadville Mill M1990-057 <br /> EXHIBIT U—DMO-EPP <br /> Page 14-7 <br /> Seve—Fal en i lTnoted ;.ithin Seetien-4 have been identified fer --Ise dwFingt,",... <br /> thp Witprffi 1 Safety Data Sheets (MSDS) (Appendix 14 2). A summa!Fy ef thp r-.hPR;*r-.ak" <br /> 14_2CrrGF! Refe,re nc-e- oe-u-re•e rah fa••nd <br /> 14.5.2 (B) EXPECTED CONCENTRATIONS, PROCESS SOLUTION VOLUMES & FATE <br /> The Mill Plan describes the pFed*Gt estimated amount of chemicals to be used per <br /> FepFesentat • = ton of ore (Section 4.2). Approximately 0.33 tons of water will be used <br /> for every ton of ore milled. The annual estimated amount of chemicals and water <br /> usage is summarized in Tables 14-4 & 14-5. <br /> TABLE 14-4: REAGENT CONSUMPTION, PROCESS FACILITY <br /> Consumption <br /> No. Reagent UnitRate Daily Monthly Annual <br /> (lb/st) (Ibs) (tons) (tons) <br /> 1 Water-H2O(1) 0.33 133 4,058 48,691 <br /> 2 Flocculant 0.02 8.00 0.12 1.46 <br /> 3 Lime-Ca 8.00 3,200 49 584 <br /> 4 Sodium Cyanide-NaCN 4.00 1,600 24 292 <br /> 5 Sodium Bisulfite-NaHS03 0.50 200 3.0 36.5 <br /> 6 Copper Sulfate-CuSO4 0.00 0 0.0 0.3 <br /> 7 Lead Nitrate-Pb(NO3)2 0.00 0.00 0.00 0.00 <br /> (1) Water consumption is reported in tons <br /> TABLE 14-5: REAGENT CONSUMPTION, REFINERY <br /> Consumption <br /> No. Reagent Daily Monthly Annual <br /> Quantity Units (Ibs) (Ibs) (Ibs) <br /> 1 Zinc Oxide-ZnO 0.20 lb/ton 79 2,414 28,969 <br /> 2 Borax-Na2[B405(OH)4] - - 200 2,400 <br /> 3 Soda Ash-Na203 100 1,200 <br /> 4 Silica Sand-Si02 400 4,800 <br /> 5 Potassium Nitrate-KNO3 150 1,800 <br /> 6 Flourspar-CaF2 5 60 <br /> 7 Silicon Carbide Cement-SiC(2) <10 <10 <br /> (2) (1)These reagents are used during au-Ag pours,so only monthly values are reported. <br /> (3) (2)Silicon Carbide is used as needed for furnace repair. <br /> Version 3.0 January 2021 <br />