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Sequoia 630 Cnesapeakc Gnvc Rtdwood GN Ca 9!063 �i5) 3e4 9oC0 FaX(4,)1 364 9233 <br /> J <br /> 40; " 1X,get Lane %%alnut Creek CA 94193 1310) 933 90n0 FAX(510) 939 9673 <br /> Analytical 319 Scnkcr A�IrI.e SWI! 3 Sacramento Ca 95334 (916) 921 9o00 FaX(916) 921 0100 <br /> E A Engineering Science &Tech Client Project ID Exxon 7-3942/8373942 1307 <br /> 3488 Mt Diablo Blvd , Ste B-100 Matrix Liquid <br /> Lafayette, CA 94549 Reported Oct 30, 1995 <br /> Attention Tracy Faulkner Work Order 9510E27-08-09 P <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> QC Batch# GC1025956TEX03A GC1025956TEX03A GC102595BTEX03A GC1025956TEX03A <br /> Analy Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep Method EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Anal st B Sullivan B Sullivan 3 Sullivan 8 Sullivan <br /> y OA0606 <br /> MS/MSD # 9510A0606 9510A0606 9510A0606 951N D <br /> Sample Cone N 0 N D N D <br /> Prepared Date 10/25/95 10/25/95 10/25/95 10/25/95 <br /> Analyzed Date 10/25/95 10/25/95 10/25/95 10/25/95 <br /> Instrument I D # GCHP3 GCHP3 GCHP3 GCHP3 <br /> Cone Spiked 10 ug/L 10 ug/L 10 ug/L 30 u9/L <br /> Result 10 10 10 30 <br /> MS % Recovery 100 100 100 100 <br /> Dup Result 10 10 10 30 <br /> MSD % Recov 100 100 100 100 <br /> RPD 00 00 00 00 <br /> RPD Limit 0-50 0-50 0-50 0-50 <br /> LCS # BLK102595 BLK102595 BLK102595 BLK102595 <br /> Prepared Date 10/25/95 10/25/95 10/25/95 10/25/95 <br /> Analyzed Date 10/25/95 10/25/95 10/25/95 10/25/95 <br /> Instrument I D # GCHP3 GCHP3 GCHP3 GCHP3 <br /> Cone Spiked 10ug/L 10pg/L 10ug/L 30u9/L <br /> LCS Result 10 10 10 31 <br /> LCS % Recov 100 100 100 103 <br /> ' M M D <br /> LCS 71 133 72-128 72130 71-120 <br /> Control Limits <br /> Please Note <br /> The LCS Is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> fortified with known quantities of specific compounds and subjected to the entire analytical procedure tf <br /> the recovery of analytes from the matrix spike does not fall within specified control timtts due to matrixInterference the LCS recovery Is to be used to validate the batch <br /> !tALYTICAL <br /> r <br /> Project Manager "MS=Matrix Spike MSD=MS Duplicate RPD=Relative% Difference 9510F27 EEE <3> <br />