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The Leodville Mill M 1990-057 <br /> EXHIBIT C-MILL PLAN <br /> Page 4-16 <br /> ore ar,d ad���5ted fer pH a neEessaFy to maximize etaI recovery i 4 q) (9.5 11.4. <br /> Lome wull Ige added to the ball FAill via a feedeF system to achieve the oFe type speed <br /> pH regUiFemenl,ih+Eh is typo 11,, in the Fange-ef 8 9. pH will be tested in th-e <br /> taihng5) will maintain this pH level. <br /> G*ven that only 5u!fmde ores aFe PFE)cessed, it iS not anticipated that pH levels wi4 <br /> e)(Eeed the pH 9 thFesheld limit. in the unlikely event of a pH gFeater than 9, UMC w�4 <br /> fletat*oR feed. The E)veFs'ze Will FePE)Ft back to the ball mill Fesulting in an effective <br /> AveF. The FemaiRing mateFmal wall be fed to the conditioning tank then to the FougheF <br /> flotation E46blit. <br /> WateF Will be added at the ball n4l El*schaFge tFough. Reagents will be added at the <br /> fletatkm. if necessary, additienal HFAe can also be added at the cond't'E)R'Rg tank. <br /> nqxed en mt, <br /> 12 A1AR1Q15 <br />