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'~~,~~ CORE LABORATORIES <br />Western Alias <br />International <br />~o.,o~ar c,.~~m <br />Sample Delivery Group Narrative <br />Date: August 19, 1993 <br />Customer: Battle Mountain Gold <br />Project: San Luis <br />Core Laboratories Project Ilumber: 931386 <br />On July 20, 1993, Core Laboratories received 5 water samples for <br />metals and general inorganic analysis. The following information is <br />pertinent to the interpretation of this data package. <br />after a tlioroug}t revieca of the rat,' data for job 931386, it was <br />noticed that the [9AD-CN result for samples POST DETQX, 930710 BMG 05 <br />and 930710 BMG 07 e>:ceeded the T-CN result (Core ID's 931386 1,2,4). <br />Except for S;AD-Ctd on sample 930710 BMG 07, the samples c~ere <br />reanalyzed for Sti~AD-CP1 and T-CN and reported under Core ID's 931386 <br />(6-8). Sample 930710 BMG 07 was originally analyzed and duplicated <br />for [SAD-CI•i on July 26, 1993. The duplicate value is reported as the <br />reanalysis value under Core ID 931386-8. All reanalysis was <br />performed past the EPA recommended holding time of 14 days. <br />in an affort to more effectively perform reanalysis for T-CN and [4AD- <br />Cfi~::ithin the EPA recommended holding of 14 days, quality control for <br />reanalysis >:i11 consist of a laboratory control sample ahd <br />calibration verification. <br />/. ~ ~~ <br />~~% i~ <br />David J. Marshall Ronald I. Fuller <br />Project Manager Laboratory Manager <br />,~ ,.. .. ce~o~ <br />... ... .. . . .... w,... _, - .... ~., .. ..._ - <br />_ - , ~... , ~ _r_ , ~ ~...~..... -,......a, .,~r.,r~...ro..,~. <br />