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' HOUSTON LABORATORY <br /> 8880 INTERCHANGE DRIVE <br /> ® HOUSTON TX 77054 <br /> • Otaallty Control Report (713) ssQ 0901 <br /> EXXON Company U S A <br /> U P3708 1 <br /> Analysis Volatile Organics by Method 82608 WorkOrder 01080655 <br /> Method SW8260B Lab Batch ID R42374 <br /> Method Blank Samples in Analytical Batch <br /> Rump M0108278 808740 Units ug/L Lab Sample ID Client Sample ID <br />'Analysis Date 08/27/2001 20 23 Analyst JC 01080655-03B MW-5 <br /> 01080655-048 MW-6 <br /> 01080655 05B MW 7 <br /> - 01080655-07B MW 9 <br />' Analyte — Result IiRep Limit) <br /> 01080655-088 MW-10 <br /> Methyl tort-bu other ND' 50 <br /> Surr 1,2 Dichioroethane d4 1020 62119f 01Q8065509B VEW-1 <br /> Surr 4 Bromoftuorobe nzen_e_ 106 04 78 123 <br /> Surr Toluene ds 100 01 74 122 <br /> Laboratory Control Sample(LCSl <br />' RuniD M 0108278808738 Units ug/L <br /> Analysis Date 08/27/2001 19 32 Analyst JC <br />' Analyte 1 Spike Result Percent Lower Upper <br /> Added Recovery Limit Limit <br /> 1,1-Dichloroethere 50 42 84 61 1451 <br />'. Benzene- - - - - - -_ 50 47 - 94 76 --- 127 <br /> Chforobenzene 50 47 94 75T 130 <br /> Toluene 50 46 92 76 125 <br />' Tnchleroethene - 50 461 921 71 120 <br />' Matrix Spike MS}/Matrix Spike Duplicate(MSD) <br /> Sample Spiked 01080530-20 <br /> RunlD M_0108278-808744 Units ug/L <br />' Analysis Date 08/27/2001 21 14 Analyst JC <br /> Analyte Sample r MSMS Result MS°o MSD MSD Result MSD% RPO RPD Low THcgh <br /> Result Spike kI Recovery Spike Recovery Limit Limit; Limit <br /> Added f Added <br /> 1-❑ichloroethene NDI 25001 2200 88 2500 21001 84 01 5 14 381 1721 <br /> nzene NDI 2500 24001 96 2500 2400 9561 OI 11 66'r 1341 <br /> hlorobenzene NDI 2500 2400 96 2500 24001 960 01 131 67 115 <br /> Toluene ND 25001 2300 92 2500 23001 92 01 0 13 591 1251 <br /> ichloroethene ND 25001 24001 96 2500L 2300' 92 01 4 14' 61F <br /> 1341 <br /> iers ND/U Not Detected at the Reporting Limit MI Matrix Interference <br /> B Analyte detected in the associated Method Blank D- Recovery Unreportable due to Dilution <br /> J - Estimated value between MDL and PQL ' Recovery Outside Advisable QC Limits <br /> The percent recoveries for QC samples are correct as reported Due to significant figures and <br /> rounding ttie reported RPD may differ from the displayed RPD values buts correct as reported e/31,01 122 00 PM <br />