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'L Sequoia 680 Chesapeake Dnve Redwood C,ty, CA 94063 (415) 364 9600 FAX(4 15) 364 9233 <br /> 404 N Wiget Lane Walnut Creek, CA 94598 (510) 988 9600 FAX(510) 988 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> v,.. ry p v v n} • '" ry }r .4. it 4 , ry r v ... � r v� .. '. i } t n,... {L } L n`n. n > <br /> Y v v}• ��v ii r v r ♦}t Y v ry } <br /> Blaine Tech Services, Inc Client Project ID Chevron 9-2033/960515-A1 ' <br /> ,,985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> ,'Attention Jim Keller Work Order# 9605C37-02-04 Reported May 29, 1996 <br /> rYr uy l r rvµr r l1v {. , ] • } `t r v r v r ~ rr v ♦4 r u + <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> OC Batch# GC052196BTEX20A GC052196BTEX20A G0052196BTBMA GCO52196BTEX20A <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#. esoww3 9605A6003 9605A6W3 9605A6003 <br /> Sample Conc., N D N D N D N D <br /> Prepared Date: 5/21/96 5/21/96 5/21/96 5/21/96 <br /> Analyzed Date' 5/21/96 5/21/96 5/21/96 5/21/96 <br /> Instrument I.D.#' GCHP20 GCHP20 GCHP20 GCHP20 <br /> Conc.Spiked: long/L 10pg/L 10Ng/L 30Ng/L <br /> Result 62 6 7 69 21 <br /> MS %Recovery. 62 67 69 70 <br /> Dup. Result 70 -18 8 0 24 <br /> MSD %Recov • 70 78 80 80 <br /> RPD' 12 15 15 13 <br /> RPD Limit 0-25 0-25 0-25 0-25 <br /> M1t } ry yr t♦ + <br /> LCS#. BLK052196 BLK052196 BLK052195 BLK052196 <br /> Prepared Date- 5/21/96 5/21/96 5/21/96 5/21/96 <br /> Analyzed Date 5/21/96 5/21/96 5/21/96 5/21/96 <br /> Instrument LD#: GCHP20 GCHP20 GCHP20 GCHP20 <br /> Conc.Spiked, 10Ng/L 10pg/L 10pg/L 30Ng/L <br /> LCS Result 94 99 9 2 27 - <br /> LCS%Recov.: 94 99 92 90 <br /> 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 /> VJectThe LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> ANALYTICAL 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 H <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 /> er <br /> nager **MS=Matrix Spike,MSO=MS Duplicate,RPD=Relative%Difference 9605C37 BLA <3> <br />