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** SPL QUALITY CONTROL SUMMARY ** PAGE 1 <br /> Matrix: Aqueous Reported on: 12/16/93 15 03-26 <br /> Sample ID: 9312153-13A Analyzed on: 12/10/93 03 09 10 <br /> Batch ID: NP N931210030910 Analyst: JZL <br /> s This sample was randomly selected for use in the SPL quality control Y <br /> program Samples chosen are fortified with a known concentration <br /> in duplicate The results are as follows <br /> BTEX on Water <br /> METHOD 602** <br /> G O M P O U N D Sample Spike MS MSO Relative % <br /> value Added % Recovery % Recovery Difference <br /> ug/L ug/L # # # <br /> BENZENE ND 20 93 97 4 <br /> TOLUENE ND 20 92 92 0 <br /> ETHYLBENZENE ND 20 93 99 6 <br /> 0 XYLENE ND 20 94 97 4 <br /> M & P XYLENE ND 40 98 103 4 <br /> NOTES <br /> # column to be used to flag recovery and RPO values with an asterisk <br /> " values outside of QC Limits <br /> Idelis Williams, QC Officer <br /> I <br />