Laserfiche WebLink
~/1/~ <br />Western Atlas <br />International <br />. um. o.a~.. ~v <br />CORE LABORATORIES <br />Sample Delivery Group Narrative <br />L <br />Customer: RCG Hagler-Bailly <br />Project: RCG/Hagler, Bailly <br />Core Laboratories Project Number: 930671 <br />On April 29, 1993, Core Laboratories received 13 samples for metal <br />and general inorganic analysis. The following information is <br />pertinent to the interpretation of this data package. <br />After a thorough review of the raw data for job 930671, it was <br />noticed that the weak acid dissociable cyanide result for samples <br />RCG-4U and RCG-4F exceeded the total cyanide result. Due to limited <br />volume, sample RCG-4U was reanalyzed for total cyanide only and <br />reported under Core ID 930671-18. The missing weak acid dissociable <br />result for sample RCG-4U is flagged with an "X" on the firyal report. <br />Sample RCG-4F was reanalyzed for total and weak acid dissoiciable <br />cyanide and reported under Core ID 930671-19. All reanalysis was <br />performed past the EPA recommended holding time of 14 days. <br />investigation. <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 sample volume, the sample could <br />not be respiked at a later date. However, a sample from this batch <br />was spiked on May 24, 1993, and met quality assurance requirements <br />(80~ recovery). The reason for the poor spike recovery is under <br />Patritk J. McEntee Linda L. Benkers <br />Senior Chemist QA/QC Coordinator <br />me r.aw.es ea.~a, ~ ie w~.cr.umr ae....r:eoa+ro warrox..m.o,a am mr..aa.op,.e,~..,~.n ~_-ere .,: ~..: av ce.n ., ,n, em~a ~v. ce,mac. +re aeroewo,: o~ao-,.ws ..9maec ~n~+ <br />nine ~igw9meni o~Cmelrzya~mn C eU]ca:+'-~-a.e.r ~.avumnam esro,fOrcr am na •sm •a,.n o rva+~~uwr~s en un•mpr, Qe iy rre~vWUn.p ome grt~aa~sa o~nabeasawanr on. 9aa Maio <br />o- men e.na aaa !. [a nx w~~.nr..+. ,ma,ne:n re4a uronior a^. ~ea•.un .~asa~w ns ,.,-.....e-:erowe +. ern .n na~m er ^a.~i+^menamrwa or Cpu aam avers <br />