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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> (D 404 Irl Wiget Lane Walnut Creek,CA 94598 (510) 98B 9600 FAX(510)988 9673 <br /> Iwo Analytical 819 Sinker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> . vu^frvvv+ r rr+-wn +vv+ iv a *+ r`n-r ♦v`` r '' ♦' ` a' ' v r . v ♦ ♦w Nf v,n+nvv e110 >- r ' 4 Y ry +rt ryfn r,'v3a'Y vrrnv +.v4rvv♦�+ n `� <br /> nWrvrv} O+v 4•• <br /> 'Blaine Tech Services, Inc Client Project ID Chevron 9-4183/960515-A2 Y <br /> ,985 Timothy Drive Matrix Liquid x< <br /> {'San Jose, CA 95133 }t <br /> }Attention Jim Keller Work Order# 9605036-01-04 v Reported May`29 1996 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> QC Batch#: GCO52196BTEX03A GCO52196BTEX03A G0052196BTEK03A GCO52196BTEX03A <br /> Analy. Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep. Method. EPA 5030 EPA 5030 EPA 5030 EPA 50.30 <br /> Analyst* J Woo J Woo J Woo J Woo <br /> MS/MSD#• 96o5A6003 9W5AWW 9605A6003 9W5A6003 <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 # GCHP3 GCHP3 GCHP3 GCHP3 <br /> Conc. Spiked long/L loyg/L 10pg/L 30pg/L <br /> Result: 70 73 76 22 <br /> MS %Recovery 70 73 76 73 <br /> Dup. Result: 75 8 0 84 25 <br /> MSD % Recov, 75 80 84 83 <br /> RPD: 69 92 10 13 <br /> RPD Limit: 0-25 0-25 0.25 0-25 <br /> ria ry v J + ♦v �+ t + w {, r t r n1 .. f } r `vy r S Y v ~ 'y ~ z r r- v v�� yr O <br /> ry�Y. 4 + s S ~ + {. of . ` .�} s ` n 4 . +. n• a r r <br /> LCS#: BLK052196 BLK052196 BLK052196 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 I.D.#: GCHP3 GCHP3 GCHP3 GCHP3 <br /> Conc. Spiked' 10 ug/L 10 Fig/L 10 ug/L 30 Ng/L <br /> LCS Result. 77 82 86 25 <br /> LCS %Recov : 77 82 86 87 <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 /> The LCS is a control sample of known,interferent-tree matrix that is analyzed using the same reagents, <br /> es tnnere <br /> ALYTICAL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> fortified with known quantities of specificoompounds 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 /> r *•MS=Matrix Spike, MSD=MS Duplicate,RPD=Relative%Difference 9605036 BLA 42> <br />