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',',' R <br /> CORE LABO <br />ATORIES <br /> Western Alias <br /> International <br /> L9m DnY f.>tivm <br /> BATTLE ?IODN'PAIN GOLD <br /> Rinsing Procedure <br /> Job Number 930036 <br /> February 19, 1993 <br /> <br /> A rinsing procedure was performed on 3 tailings solids submitted <br /> by Battle Mountain Gold on January 12, 1993. The samples were <br /> rinsed with a solution consisting of deionized water~lwith the pH <br /> adjusted to 5.0-5.5. The rinsing was performed by mixing <br /> approximately a 12 to 1 liquid to solid ratio in ~ zero head <br /> space container and allowing the solution to ,equilibrate <br /> overnight. The liquid was then decanted and analyzed for pH and <br /> conductivity. This rin sing procedure was continued yntil the pH <br /> of the leachates had either turned acidic or sta ilized for <br /> three rinsing cycles. A summary of data generate from each <br /> sample is listed below. <br />SANPLE NO........: 930036-1 <br />CLIENT ID........: f7 90-117 <br />LIQ/SOL RATIO....: 12:1 <br />pH TEST ![ETHOD...: 150.1 (1) <br />COND TEST HETHOD.: 120.1 (1) <br /> COND OF <br /> pH OF pH OF LEACHATE <br />RINSE CYCLE NO. RINSE SOLUTION LEACHATE (umhoslcm) <br /> <br />1 5.20 7.41 315 <br />2 5.20 7.64 159 <br />3 5.20 7.77 78 <br />4 5.20 7.89 49 <br />5 5.20 8.04 41 <br />6 5.18 8.34 38 <br />7 5.18 8.60 31 <br />8 5.18 8.69 30 <br />9 5.18 8.80 28 <br /> <br />iN arur/in. Lp'~l n ~nrwpaurma mmnwp •n Ilnf r.pyr aq wtn uwn ms+mumz yU maie•ui au[paa ev ~M cym mr .n oie e.umne aN [v'I aem.ai ufe imvgxr nae Man mae iM n n•paiaionf p~ ynans e.ortfsn'eae <br />wi na wzryropnwe d Caa Laporuw.a Con InCwarovi. rpe.er a m rmpprsOary am maan ra .arwnp o• •emesmma•s earns m •mpb a io pe pwuanM pLC.r Mrui'cr•s w portlaoramss d aas pa cu con o• <br />crro mnWaL prtp'rt/ .M~ p e+M •n mvranan am .ncn vm rgwrl n vs+0 o nieE Upon rp an, reap~.nalsa.o Inf ~eLOn snail mr pa rroml.mu e.up m n snln.p aporr p..~m~ awrtna~ pr Gw. uaprnprn <br />