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• <br />Ms. Nora Jacquez, <br />Attorney at Law <br />6458 South Quebec <br />Building 5 <br />12975 W. 24th PI. <br />Golden, (Applewood) Colorado, 80401 <br />(303) 237-8865 <br />Esq. <br />Street <br />Englewood, Colorado 80111 <br />RE: Review of Battle Mountain Gold's Reclamation) Evaluation <br />for the San Luis Mine <br />Dare Nora: <br />I have looked through the reclamation evaluation prepared by <br />Battle Mountain Resources Inc. (BMRI) concerning theirassessment <br />of the tailings. <br />Pg. it The document indicates that an attempt w s made to <br /> collect a pore water sample from the cutti gs secured <br /> from the core holes, but that this was un uccessful. <br /> Pore water samples from the sites of the core holes could <br /> have been collected, using porous cups or we 1 points if <br /> necessary. It seems it would have allowed for better <br /> correlation of the data if we knew the pore waf ter quality <br /> at the points the solids samples were taken. <br />Pg. 19 Here BMRI restates that the Division conclud ed "cycling <br /> of one complete (pore) volume should remove he high WAD <br /> cyanide from the interstitial fluids." I'm n t sure with <br /> the apparent heterogeneity observed in the bo ~'ings, with <br /> the precipitation of various parameters in t e tailings, <br /> and with the consolidation of the sediment, hat this is <br /> the case. Given a totally conservative flue (one that <br /> will not react with the tailings matr x) and a <br /> homogeneous, uncemented matrix of particles, this may be <br /> the case. However, with the physical a d chemical <br /> changes taking place in the tailings, it wou d seem that <br /> more than one pore volume of flushing may be required to <br /> bring the fluids in the pore spaces into comp liance. We <br /> should find out the basis for the conclusid ,n that one <br /> pore volume is adequate. <br />Pg. 22 On page 22, and the accompanying table 3.1, the results <br /> of the column leach tests are presented. Many of the <br /> parameters tested, especially after 3 pore volumes of <br />Ground Water Hydrology Engineering Geology Geophysics I Geo[echnical Consultants <br />August 2, 1993 <br />