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HOLtST LABORATORY <br /> 8660 INTERCHANGE DRIVE <br />' HOUSTON TEXAS 77054 <br /> Q (713]560 0401 <br /> . Quality Control Report <br />' EXXON Company U S A <br /> UP0137 1 <br /> Analysis Gasoline Range Organics WorkOrder 00120251 <br />' Method CA_GRO Lab Batch ID R26177 <br /> Method Blank Samples in Analytical Batch <br /> RuniD HP_U_001213B 506369 Units mg/L Lab Sample ID Client Sample I❑ <br />'Analysis Date 12/13/2000 10 51 Analyst DL 00120251-07A MW-7 <br /> 00120251-08A VE W-2 <br /> Analyte_ �— Result IRep Limit' <br /> Gaso€ine Range Organics NDI 0 050 <br /> i Surr 1 4-Ddluarobenzene 101 31 621441 <br /> Surr 4 Bramofluorobenzene _ 100 3' 44-153 <br /> Laboratory Control Sample (LCS) � <br /> RunlD HP_U_001213B 506368 Units mg/L <br /> Analysis Date 12/13/2000 10 00 Analyst DL <br /> Analyte Spike' Result _ Percent Lower Upper Added Recovery Limit I Limit <br /> Gasoline Range Organics 11 0 861 86, 70 130 <br /> Matrix Spike(MS)1 Matrix Spike Duplicate(MSD} <br />' Sample Spiked 00120278 06 <br /> RuniD HP_U_0012138 506327 Units mg1L <br /> Anaiysis Date 12/13/2000 12 30 Analyst DL <br /> Analyte Sample MS i MS Result MS% MSD MSD Result I MSD% i RPD 1 RPD Low High <br /> Result ; Spike Recovery Spike Recovery i Limit Limit Limit <br /> Added 1 ! Added 1 <br /> ,Gasoline Range Organics ND[ 09 0 881 9771 0 9 0 94' 1041 6 65' 361 361 1601 <br /> I <br /> ifiers ND/U-Not Detected at the Reporting Limit M1 -Matrix Interference <br /> B-Analyte detected In the associated Method Blank D-Recovery Unreportab9e 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 17 <br /> rounding,the reported RPD may differ from the displayed RPD values but Is correct as reported 12/21/00 10 09 11 AM <br />