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•1 y <br /> 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 /> i <br /> s n.a,. .a.,..`x A. ,!. •r ,:`.. i„ .. v`t A, r M1„ ,,.,, v nv+.:,v.> v ,` � . `mac'}� •, ., . ' .s ,.. s <br /> n Blaine Tech Services, Inc v, v�Client Project ID Chevron 9-8632/951201-G2 <br /> 985 Timothy Drive Matrix Liquid <br /> San Jose,CA 95133 x <br /> "Attention Jim Keller Work Order# 9512138-05 Reported Dec 18, 1995-, <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> OC Batch#: GC120595BTEX21A GC120595BTEX21A GC120595BTEX21A GC120595BTEX21A <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 #. 9511H1503 9511H1503 9511H1503 9511H1503 <br /> Sample Cone N D N D N D N D <br /> Prepared Date- 12/5/95 12/5/95 12/5/95 12/5/95 <br /> Analyzed Date 12/5/95 12/5/95 12/5/95 12/5/95 <br /> Instrument I D.#' GCHP21 GCHP21 GCHP21 GCHP21 <br /> Cone.Spiked. 10}tg/L 10ug/L 10ug/L song/L <br /> Result 10 98 9 4 28 <br /> MS %Recovery: 100 98 94 93 <br /> Dup Result: 97 91 86 26 <br /> MSD%Recov : 97 91 86 87 <br /> RPD: 30 74 89 74 <br /> RPD Limit: 0-50 0-50 0-50 0-50 <br /> LCS #- BLK120595 BLK120595 BLK120595 BLK120595 <br /> Prepared Date 12/5/95 12/5/95 12/5/95 12/5/95 <br /> Analyzed Date- 12/5/95 12/5/95 12/5/95 12/5/95 <br /> Instrument I D #: GCHP21 GCHP21 GCHP21 GCHP21 <br /> Cone. Spiked, 10Ng/L 10pg/L 10pg/L 30ug/L <br /> LCS Result: 10 10 10 30 <br /> LCS%Recov.: 100 100 100 100 <br /> LCS 71-133 72-128 72-130 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 /> S I A 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 /> g e <br /> Pro] Manager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9512138 BLA <3> <br />