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',',' <br />Western AUea <br />International <br />. uo.~ona,.. c~ah <br />CORE LABORATORIES <br />BATTLE MOIIN'PAIN GOLD <br />Rinsing Procedure <br />Job Number 931935 <br />November 10, 1993 <br />A rinsing procedure was performed on 5 tailings solids submitted <br />by Battle Mountain Gold on August 30,1993. The samples were <br />rinsed with a solution consisting of deionized water with the pH <br />adjusted to 5.0-5.5. The rinsing was performed by mixing <br />approximately a 20 to 1 liquid to solid ratio in a 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 rinsing procedure was continued until the pH <br />of the leachates had either turned acidic or stabilized for <br />three rinsing cycles. A summary of data generated from each <br />sample is listed below. <br />SAMPLE NO........: 931935-6 <br />CLIENT ID........: #14 15-26.5' <br />LIQ/SOL RATIO....: 20:1 <br />pH TEST METHOD...: 150.1 (1) <br />COND TEST METHOD.: 120.1 (1) <br /> COND OF <br /> pH OF pH OF LEACHATE <br />RINSE CYCLE NO. RINSE SOLUTION LEACHATE (umhos/cm) <br />1 5.12 7.65 235 <br />2 5.12 9.01 73 <br />3 5.08 9.45 38 <br />4 5.08 9.49 26 <br />5 5.06 9.52 25 <br />1*e awye. apnivu n nwpeuoom mnnmtl n ma isyt u, mfea upon ODMrvalans w maeew vrypieo q oa tlam Iw +inss e.tlm~w ana mnI Wmal uv Ina mcw nas eem maa. 11. nlarp~mdmna o. opnmt s.omra rpr. <br />rwn 0~. E.n ,mpnwl a Ca, lahaamnta Coif I~ovav:rof. M.srw. as m mpmWYn ano maMS m.ananry w ~aP'ra~Nima, a.pasf a imVM. +. m ~n• p~u[V.tY, nrpr owrma 0~ palnadana+d any of ya mal w <br />alw m+wW. ymwry. wu a vN in mremun nm.npi v In apw a uaea an, W upw in vry nawi.luac.va~. mp rFp~ mae rp pe rtpN.~xd unp ~n a enbery..mmW Oa.nnr appwu d fan ldpmildaa <br />