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' HOUSTON LABORATORY <br /> 8880 INTERCHANGE DRIVE <br /> ® HOUSTON TX 77054 <br /> Quality Control Report (713) 660 0901 <br /> EXXON Company U S A <br /> UP3708 i <br /> Inalysis Volatile Organics by Method 82608 WorkOrder 01090831 <br /> Method SW8260B Lab Batch ID R44394 <br /> Method BlanklD M_0109278 s4s443 nits vg/L Lab 5arriLle ID Cfient Semple I❑ <br /> f <br /> alysls Date 09/28/2001 4 57 Analyst JC 01090831-01B <br /> MW-4 <br /> 01090831-02B MW-8 <br /> Analyte Result-[Rep Limit <br /> _Meth I ty ert bugl ether _ _ ND 50, <br /> Surr 1 2 Dichloroethane d4 10401 62 1301 <br /> Surr 4-Bromofluorobenzene 10601 70 1301 <br /> Surr_Toluene-d8 960 741221 <br /> ULaboratory Control Sample LCS <br /> HunID M_0109278 846442 Units ug/L <br /> Analysis Date 09/28/2001 4 04 Analyst JC <br /> Analyte Spike T Result I Percent Lower Upper <br /> Added Recovery Limit Limit <br /> 1 1-Dichloroethene 501 57' 1141 61 145 <br /> Benzene - - - 501 - 54 1081 -761 127 <br />' Chlorobenzene 50 48 96 75 1301 <br /> Toluene 50 501 100' 76 125 <br /> Trichioroethere 50 52' 104 71 _ 120 <br /> Matrix Spike $AS 1 Matrix Spike Du licate MSD <br /> Sample Spiked 01090788 03 <br /> RunID M_0109276 846461 Units ug/L <br /> Analysis Date 09/28/2001 13 01 Analyst JC <br /> Analyte Sample MS MS Result MS°o MSD MSD Result MSD% RPD RPD Law 1 High <br /> Result Spike Recovery Spike — Recovery - Limit Limit I Limit <br /> Added ' Added <br /> 1,1-Dlchioroethene ND 50 41 82� 50 421 840, 2 14 38 172 <br /> nzene --- - ND 50 461 921 50-- - - 45 9001 2T 11_ 66 1341 <br /> lorabenzene ND 50 45� 90 50 451 900 01 13- 67 115 <br /> e - - - - ND 50'-- - 45, 90 50 441 88 0 2 13_ 59 125 <br /> Toluene _ __ -- _ - - - <br /> chlaroethene --- - - - ND 50 41� 82 50 _ - 41 820 0 14 61 134, <br /> L--ers ND/U Not Detected at the Reporting Limit MI Matrix Interference <br /> 3 Analyte detected in the associated Method Blank D- Recovery Unreportable due to Dilution <br /> J Estimated value between MDL and POL . Recovery Outside Advisable OC Limits <br /> Rhe percent recoveries for OC samptes are correct as reported Due to significant figures and <br /> rounding the reported RPO may differ from the displayed Ri values but is correct as reported 1C12101 3 15 44 PM <br />