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HOUSTON LABORATORY <br /> 8880 INTERCHANGE DRIVE <br />' HOUSTON TEXAS 77054 <br /> 0 {743)660 0901 <br /> Quality Control Report <br /> lAnallysis <br /> EXXON Company U S A <br /> UP0137 1 Volatile Organics by Method 82608 WorkOrder 00120251 <br /> Method SW8260B Lab Batch ID R26202 <br /> Method Blank Samples in Analytical Batch <br /> RuniD 0_001213B 506731 Units ug/L Lab Sample ID Client Sample ID <br />�nalysis Date 12/14/2000 0 39 Analyst JC 00120251 01B MW-1 <br /> 00120251-02B MW-2 <br /> 00120251-03B MW-3 <br /> _ -� Analyte _ Result IRep Limit; 00120251-04B MW-4 <br /> - � T <br /> 1 2 D,bromcelhane_ ND 5 p 00120251-058 MW-5 <br /> 11 2 Dichiomethane_ �' ND 5 000120251-068 MW-6 <br /> Dusopropylether NDI 10 00120251-07B MW-7 <br />' Methyl tart butyl ether=_= _ND___5 0 00120251-08B VEW-2 <br /> :t-Butvl alcohol ND 500 <br /> tart-Arriyi methyl ether NDi 19I <br /> Etert Butyl e1W ether NDf 101 <br /> Surr 12_Dichloroethaned4 _ 10201 62119, <br />' Surr 4 BromDf uorobenzene 104 01 78 1231, <br /> I Surr Toluene-d8 96 0� 74 122' <br /> Laboratory Control Sample(LCS) <br /> Run0 Q_00121313-506730 Units ug/L <br /> Analysis Date 12/13/2000 23 44 Analyst JC <br /> Analyte Spike Result Percent Lower I Upper I <br /> Added Recovery Limit Limit <br />' 1 1_Dtchloroethene _ 50, 411 _ _ 82 51 1451 <br /> Benzene 50, 53, 106 �75 1271 <br /> Chlorobenzene 50', 54;� 108 75 1301 <br />' ,Totuene _-��- - 501 51; 102, 76 125 <br /> Trichloroethene 501 541 108 71! 1201 <br /> Matrix Spike(IVES)/Matrix Spike Duplicate(MSD) <br /> Sample Spiked 00120251-02 <br />' RunID Q_001213B 508501 Units ug/L <br /> Analysis Date 12/14/2000 2 03 Analyst JC <br /> Analyte _ Sample MS MS Result MS % MSD MSD Result MSD% , RPD ! RPD Low High , <br /> Result Spike ; Recovery Spike Recovery i Limit , Limit Limit <br /> Added Added <br /> 1-Dichloroethene - ND' 50 _ 42 84' 50' _ 391 78 71 141 381 1721 <br /> enzene 4 NDi 50 541 108, 50 52 1041 41 11� 661 134E <br /> 1Chlorobenzene _ ND1 �50i 541 10Bf 501 52; 1041 4� 131 671 1151` <br /> oluene _ - _ _ _ND,_ 50' 51' 102' 50, — 48` 9W 61 13, 591 1251 <br /> leis �NDlU -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 00120251 Page 19 <br /> rounding the reported RPD may differ from the dlspiayed RPD values but is correct as reported 121211001D 0916 AM <br />