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•i ID Sequoia 680 Chesapeake Drive Redwood Cim CA 94063 (415) 364-9600 FAX(415) 364 9233
<br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(5 i0)988 9673
<br /> woAnalytical 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100
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<br /> ,,Blaine Tech Services, Inc
<br /> N„v Y+hClient Project I©r Shell,Stockton/960515 T1
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<br /> '985 Timothy Drive Matrix Liquid <
<br /> 4San Jose, CA 95133 n
<br /> �Attention Jim Keller Work Order# 9605C67-04, 11 Reported May 29, 1995
<br /> QUALITY CONTROL DATA REPORT
<br /> Analyte: Benzene Toluene Ethyl Xylenes
<br /> Benzene
<br /> GC Batch#: GCO52296STEX17A GCO52296BTEX17A GCO52296BTEX17A GCO52296BTEX17A
<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#: 96o5A6004 9605A6OD4 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 1.134. GCHP17 GCHP17 GCHP17 GCHP17
<br /> Conc.Spiked: 10Ng/L long/L 10 fug/L 30yg/L
<br /> Result: 98 96 95 28
<br /> 0M%Recovery. 98 96 95 93
<br /> Dup. Result: 10 10 98 29
<br /> MSD%Recov.: 100 100 98 97
<br /> RPD' 20 41 31 35
<br /> RPD Limd: 0.25 0-25 0-25 0-25
<br /> '.'e,�,.rv.,.,.v.-�.....s,.{r.,.ry,., ~t{ ,nn,(c.v.c ~ ,.,.4 ,. ,,,. °i .,,r, ` v h , ,,.„x , ry r}n . s., 4 r..,...,,,wu A ,nn ..,0 4 c ,• ,...4 cur s.s4 't , 4 ~Y s~...,.,.,.
<br /> LCS BLKo52296 BI.KO52296 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.#: GCHP17 GCHP17 GCHP17 GCHP17
<br /> Conc Spiked: 10ug/L 10Ng/L 10yg/L 30ug/L
<br /> LCS Result: 97 96 97 29
<br /> LCS %Recov.: 97 96 97 97
<br /> 60-140 60-140 60-140 60-140
<br /> LCS 70-130 70-130 70-130 70-130
<br /> Control Limits
<br /> Please Nota
<br /> The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents,
<br /> EA 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 /> P g P er
<br /> Pro ct Manager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9605067 BLA ¢3>
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