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` Sequoia 680 Chesapeake Dnve Redwood Clty,CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> IWO Analytical 819 Striker Avenue,Suite 8 Sacramento, CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> ;J {+ xv{ rry ri'}v�Grrr'v {-nj r }{: i v rlry `F 4 tt inr�+ t v,v vtwy.,.4}v4r vi • {v r�r n <br /> Blaine Tech Services,Nlne Ghent Project ID 'Chevron 9-8264%970827 T1 <br /> 1680 Rogers Ave Matrix Liquid <br /> ,"San Jose, CA 95112 <br /> Attention Fran Thie Work Order# 9708E76-01 Reported Sep 9, 19971• <br /> ` rvn v }r ♦ n }ri xv t. . v. vv rvnYv }}.{}r4 ♦r {^ v v v r rrrn r `f r r . v nn ~ r r fir r r h�'t r r f ♦ " v <br /> QUALITY CONTROL DATA REPORT <br /> Analyte 2,4-Dmitro. Pentachloro- Pyrene <br /> toluene phenol <br /> QC Batch# MS0829978270EXA MS0829978270EXA MS0829978270EXA <br /> Analy Method EPA 8270 EPA 8270 EPA 8270 <br /> Prep Method. EPA 3510 EPA 3510 EPA3510 <br /> Analyst" B Pltamah B Pitamah 8 Pitamah <br /> MS/MSD#. 0829BS/BSD 0829BS/BSD 0829BS/BSD <br /> Sample Conc : N D N D N D <br /> Prepared Date 8/29/97 8/29/97 8/29/97 <br /> Analyzed Date 9/2/97 9/2/97 9/2/97 <br /> Instrument LD #. F4 F4 F4 <br /> Conic Spiked 200ug/L 200ug/L 200 ug/L <br /> Result 135 139 188 <br /> MS % Recovery 68 70 94 <br /> Dup Result 131 144 181 <br /> MSD % Recov 66 72 91 <br /> RPD 30 35 38 <br /> RPD Limit 0-30 0-30 0-30 <br /> Control Limits 24-96 9-103 26-127 <br /> Please Note <br /> The LCS is a control sample of known,Interferent-free matrix that is analyzed using the same reagents, <br /> &0,aEIA <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 /> Pnner **MS=Matrix Spike, MSD=MS Duplicate,RPD=Relative%Difference <br /> Panager Page 3 of 3 9708E76 BLA <10> <br />