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** SPL QUALITY CONTROL SUMMARY ** PAGE 1 _ <br /> Matrix: Aqueous Reported on: 04/13/94 15:37:47 <br /> Sample ID: 9404241-09A Analyzed on: 04/11/94 19:21 :00 <br /> Batch 1D: HP N940411192100 Analyst: M00 <br /> This sample was randomly selected for use in the SPL quality control <br /> program. samples chosen are fortified with a known concentration i <br /> in duplicate. The results are as follows: <br /> i <br /> I <br /> BTEX-water <br /> METHOD 8020*** <br /> C 0 M P 0 U M D Sample Spike M5 MSD Relative % <br /> Value Added X Recovery % Recovery Difference <br /> ug/L Ag/L # <br /> BENZENE ND 20 102 91 11 <br /> TOLUENE ND 20 97 83 16 <br /> ETHYLBENZENE ND 20 91 79 14 <br /> 0 XYLENE ND 20 95 84 13 <br /> N 8 P XYLENE ND 40 104 92 12: <br /> I <br /> r <br /> I <br /> NOTES <br /> # column to be used to flag .recovery and RPD values with an asterisk <br /> * values outside of QC Limits. <br /> Idelis Jt liams, QC Officer <br />