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Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Sinker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> ' J x t ry r .. s .....,.,.rn v n n• r rvr rm v vv . n x r ^ vv,. . v rY'ivv.x C n <br /> Blaine Tech Services, Inc Client Project 1D Chevron 9-1918/960430-L1' ° <br /> G4 <br /> 985 Timothy Drive Matrix Liquid <br /> 'San Jose, CA 95133 <br /> Attention Jim Keller Work Order# 9604K48-01-03, 05, 07 Reported May 10, 1996,' <br /> rvyv r v. ♦ w . x{}{ [ i <br /> v 41 ' - 1 n • t o } v + + + r+ C r r r n <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> QC Batch# GC050696BTEX21A GCO50696BTEX21A GCO50696BTEX21A GC050696BTEX2IA <br /> Analy Method. EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep Method EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst J Woo J Woo J Woo J Woo <br /> MS/MSD# 96041-15103 9604H5103 96041-15103 9604H5103 <br /> Sample Cone N D N D N D N D <br /> Prepared Date 5/6/96 5/6/96 5/6/96 5/6/96 <br /> Analyzed Date 5/6/96 5/6/96 5/6/96 5/6/96 <br /> Instrument I D# GCHP21 GCHP21 GCHP21 GCHP21 <br /> Cone.Spiked 10pg/L 10pg/L 10pg/L 30pg/L <br /> Result 11 11 11 34 <br /> MS % Recovery 110 110 110 113 <br /> Dup Result 11 11 11 35 <br /> MSD%Recov.. 110 110 110 117 <br /> RPD 00 00 00 29 <br /> RPD Limit 0.25 0.25 0-25 0-25 <br /> a <br /> LCS# BLK050696 BLK050696 BLK050696 BLKOSW96 <br /> Prepared Date. 5/6/96 5/6/96 5/6/96 5/6/96 <br /> Analyzed Date- 5/6/96 5/6/96 5/6/96 5/6/96 <br /> Instrument I D #. GCHP21 GCHP21 GCHP21 GCHP21 <br /> Cone Spiked' 10pg/L 10pg/L 10pg/L 30pg/L <br /> LCS Result. 85 10 10 30 <br /> LCS%Recov 85 100 100 100 <br /> M 60-140 60.140 60.140 60.140 <br /> LCS 70-130 70-130 70-130 70-130 <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 /> (� ALYTICAL 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 If <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> interference,the LCS recovery is to be used to validate the batch <br /> Cytnner <br /> Project Manager **MS=Matrix Spike,MSD-MS Duplicate,RPD=Relative%Difference 9604K48 BLA <5> <br /> i <br />