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D Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364-9600 FAX(415) 364 9233
<br /> 404 N Wiget Lane Walnut Creek CA 94.598 (510) 988 9600 FAX(510)988 9673
<br /> Analytical 819 Sinker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100
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<br /> �BlaineTech Services, Incy Client Project ID Shell, Stockton/960515-T1
<br /> ;¢985 Timothy Drive Matrix Liquid }
<br /> San Jose, CA 95133
<br /> ;Attention Jim Keller Work Order# 9605C67-07-09 Reported Mayr 29; 1996
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<br /> QUALITY CONTROL DATA REPORT
<br /> Analyte: Benzene Toluene Ethyl Xylenes
<br /> Benzene
<br /> QC Batch#. GC052296STEX20A G10052296121TE)MA GCO52296BTDMA GC0522%BTEX20A
<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#• 9605A6004 9605A6004 9605A6004 9605A6004
<br /> Sample Conc : N D N D N D N D
<br /> Prepared Date 5/22/96 5/22/96 5/22/96 5/22/96
<br /> Analyzed Date 5/22/96 5/22/96 5/22/96 5/22/96
<br /> Instrument I D.#. GCHP20 GCHP20 GCHP20 GCHP20
<br /> Conc. Spiked: 10 Ng/L 10 Ng/L 10 pg/L 30 ug/L
<br /> Result: 84 85 80 23
<br />*MS %Recovery 84 85 80 77
<br /> Dup. Result 92 94 88 26
<br /> MSD%Recov 92 94 88 87
<br /> RPD: 91 10 95 12
<br /> RPD Limit- 0-25 0-25 0-25 0-25
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<br /> LCS#: BLK052296 BLK052296 BLK052296 BLK052296
<br /> Prepared Date 5/22/96 5/22/96 5/22/96 5/22/96
<br /> Analyzed Date 5/22/96 5/22/96 5/22/96 5/22/96
<br /> Instrument I.D.#: GCHP20 GCHP2o GCHP20 GCHP20
<br /> Conc. Spiked. 10 ug/L 10 fig/L 10 ug/L 30,ug/L
<br /> LCS Result: 94 99 94 28
<br /> LCS%Recov: 94 99 94 93
<br /> 6G-140 60-140 60-140 60-140
<br /> LCS 70-130 70-130 70-130 70.130
<br /> Control Limits
<br /> t1lecPlease Note
<br /> The LCS is a control sample of known,Interferent-free matrix that is analyzed using the same reagents,
<br /> t
<br /> NALYTICAL 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 /> gen **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9605067 BLA <2>
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