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PPNW <br /> HOU LABORATORY <br /> 88800INTE INTERCHANGE?RIVE <br /> r;1 HOUSTON TEXAS 7-054 <br /> 17111 660 0901 <br /> Quality Control Report <br />' EXXON Company U S A <br /> UP3708 1 <br /> Analysis Volatile Organics by Method 82608 WorkOrder 01020792 <br /> Method SW8260B Lab Batch ID R30743 <br /> Method Blank Samples in Analytical Batch <br /> Runll? Q_010305A-587389 Units ug/L Lab Sample ID Client Sample ID <br />' Analysis Date 03/05/2001 1926 Analyst JC 01020792-01B MW-1 <br /> 01020792-03B MW-5 <br /> 01 020792-04 8 MVV-6 <br />' — --- - -- i - 01020792-058 MW 7 <br /> Analyte Result Rep Limit 01020792-06B MW-8 <br /> Methyl teR butyl ether f p 5 0 <br /> Surr 1 2-0ichloroethane-d4 1080 62 119 01020792-078 MW-9 <br /> _Surr 4-Bromaftugrobenzene ___96 4 78 123 01020792-088 MW-10 <br />' Surr_Toluene-r18 — 110 01020792-098 VEW-1 <br /> 01020792-10B VEW J <br />' Laboratory Control Sample(LCS) <br /> RunlD C_010305A 587388 Units uglL <br /> Analysis Date 0105/2001 18 36 Analyst JC <br /> Analyte Spike Result -erten{ Lower Upper <br /> Added � - Recovery ' Limit - Limit <br /> 1 1-Dichlaroethene 50 53 106 61 145 <br /> Benzene 50 59 118 76 127 <br /> iChlorobenzene 50 55 110 75 13C <br />' Toluene _ — -- 50 55 1"0 76 125 <br /> Trichloroethene 50 53 106 71 120 <br />' Matrix Spike(MS)1 Matrix Strike Duplicate{MSO} <br />' Sample Spiked 01020792-01 <br /> RunlD Q_010305A 587392 Units uglL <br /> Analysis Date 03/05/2001 20 43 Analyst JC <br /> Analyte Sample MS MS Result MS % MSD MSD Result MSD % RPD RPD Low High <br /> Result Spike Recovery Spike Recovery Limit LimitLimit <br /> Added Added `� <br /> 11-D'ch <br /> loraethene ND 500 520 104— 500, 520 104 0 14 38 172 <br /> (Benzene — _ND 500 570' - 114 500E 570 _ 114 0 11 66 134 <br /> Chlorobenzene ND 5001 530' 106 500 540 108 2 13 671 115 <br /> Toiuene ND 500 540 108 500 540 108 0 13, 591 125 <br /> Trichiaroethene ND 500 520 104 500 520 104 0 141 61 134 <br /> lifters NDIL!-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 01020792 Page 17 <br /> rounding 110 reported RPD may differ from the displayed RPD values but is correct as reported 3,19jo1 3 03 53 Prue <br />