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Sequoia 680 Chesapeake Drive 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 /> Blame Tech Services,Inc Client Project ID Chevron 9-8264%960820,11 <br /> 985 Timothy Drive Matrix Liquid x <br /> San Jose, CA 95133 ` <br /> 'Attention Jim Keller Work Order# 9608C70-01 wt i Reported Sep 44 1996 <br /> fv vy v }i lv Sr. v ` xv1ry r �+' " M1 f r ~ v. r rf.v vv rywr}r ex vfw v xrv♦ M1 rvv v4.vvr s <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Phenol 2-Chlorophenol 1,4-Dichioro N-Nitroso-Di- <br /> benzene N-propylamine <br /> OC Batch# MS0821968270EXA MS082196a270EXA MS0821968270EKA MS0821968270EXA <br /> Analy Method- EPA 8270 EPA 8270 EPA 8270 EPA 8270 <br /> Prep. Method EPA 3510 EPA 3510 EPA 3510 EPA 3510 <br /> Analyst E Manuel E Manuel E Manuel E Manuel <br /> MS/MSD # 96MB7303 960867303 960887303 9608B7303 <br /> Sample Conc N D N D N D N D <br /> Prepared Date 8/21/96 8/21/96 8/21/96 8/21/96 <br /> Analyzed Date 8/22/96 8/22/96 8/22/96 8/22/96 <br /> Instrument I D # F4 F4 F4 F4 <br /> Cone Spiked: 200 pg/L 200 pg/L 200 pg/L 200 pg/L <br /> Result 76 150 120 160 <br /> MS % Recovery. 38 75 60 8d <br /> Dup Result 86 150 130 170 <br /> MSD % Recov • 43 75 65 85 <br /> RPD 12 00 80 61 <br /> RPD Limit: 0-30 0-30 0-30 0-30 <br /> f YSn v <br /> LCS #: BLK082196 BLK082196 BLK082196 BLK082196 <br /> Prepared Date 8/21/96 8/21/96 8/21/96 8/21/96 <br /> Analyzed Date" 8/22/96 8/22/96 8/22/96 8/Z2/96 <br /> Instrument I D # F4 F4 F4 F4 <br /> Cone Spiked: 200 pg/L 2Wpg/L 2Wug/L 200 pg/L <br /> LCS Result. 80 150 120 160 <br /> LCS% Recov.. 40 75 60 80 <br /> DL-132 42-112 42-100 53-107 <br /> LCS 50-114 59-117 5493 55-114 <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 /> SE O1LYTICALApreparation,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 /> an P *" MS=Matnx Spike,MSD=MS Duplicate,RPD=Relative%Difference <br /> jest Manager Page 1 of 3 960SC70 BLP` <2> <br />