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',~~~ <br />Western Atlas <br />International <br />COFIE LABORATORIES <br />Sample Delivery Group Narrative <br />Customer: Battle Mountain <br />Project: San Luis <br />Core Laboratories Project <br />Gold <br />Number: 930653 <br />On April 28, 1993, Core Laboratories received 2 samples for metal <br />and general inorganic analysis. The following informatLon is <br />pertinent to the interpretation of this data package. <br />After a thorough review of the raw data for job 930653, it was <br />noticed that the weak acid dissociable cyanide result far sample <br />POST DETOX exceeded the total cyanide result. Reanalysis was <br />performed past the EPA recommended holding of 14 days. The results <br />are reported under Core ID 930653-3. <br />A method spike was not reported for weak acid dissociable cyanide <br />analyzed on May 21, 1993. A method spike was analyzed but resulted <br />in a low recovery. Due to limited volume the sample could not be <br />respiked at a later date. However, a sample from this batch was <br />spiked on May 24, 1993, and met quality assurance requirements (80$ <br />recovery). The reason for the poor spike recovery is under <br />investigation. <br />/a/~ <br />atrick J. McEntee <br />Senior Chemist <br />~~~~~ <br />Linda L. Benkers <br />QA/QC Coordinator <br />>ne a.unss. wove d.n.meurms wmnrcc ~a in~a revan are mass om• oae+aro+s aro mnevi wm~~ er ins ~+m im wrose vws.n am mnammi me ms rewn ms oen mesa 11e nreveiaam ar otlro~s e.measev retle <br />snnA Onr iwgmvn el Cq.e aauvnaM Cva llh.arp+i rwever um rb •mm~sea~ry arb maua m wanmry m rwresenuums e.Yresa onmaeU a o irc pmunxM Grm+~ op~arona or orNnatla.nis of any oa Gss mn a <br />srcr mule ai crmerryaenor aaro ~n mnrenon.nn.ncn a~cn rtmna useda .eree~wnrm awr .eaa. w~nsorver ~nisrem~snaA rormrevmi.oee.rea nos em~,ery.nrvnrro.aner~amro+a a~Wia umrairviea <br />