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.i <br /> j 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 /> Iwo Analytical 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> f Blaine Tech Services, Inc Client Project ID Chevron 948632/951201-G2 �> <br /> 985 Timothy Drive Matrix Liquidry <br /> 'nSan Jose, CA 95133 ; <br /> ',Attention Jim Keller Work Order# 9512138-01 Reported Dec 18, 1995'vt <br /> nnrvry ,n ryv n{v�n~i♦ 1, ry v 4 4 4 , A !S L` r v t t . . . r t . ♦, 4 ,n v4, rrt <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: 2,4-Dtnrtro- Pentachloro- Pyrene <br /> toluene phenol <br /> OC Batch#: MS1130958270EXB MS1130958270EXB MS1130958270EXB <br /> Analy. Method: EPA 8270 EPA 8270 EPA 8270 <br /> Prep. Method: EPA 3510 EPA 3510 EPA 3510 <br /> Analyst. B Pltamah B Pdamah B Prtamah <br /> M S/MSD# 9511 K0001 9511 K0001 9511 K0001 <br /> Sample Cone.: N D N D N D <br /> Prepared Date: 11/30/95 11/30/95 11/30/95 <br /> Analyzed Date: 11/30/95 11/30/95 11/30/95 <br /> Instrument I D.# H5 H5 H5 <br /> Cone. Spiked 200pg/L 200ug/L 200pg/L <br /> Result- 120 130 140 <br /> MS % Recovery 60 65 70 <br /> Dup. Result. 130 160 150 <br /> MSD %Recov: 65 so 75 <br /> RPD. 80 21 69 <br /> RPD Limit 0-50 0-50 0-50 <br /> LCS #. BLK113095 BLK113095 BLK113095 <br /> Prepared Date: 11/30/95 11/30/95 11/30/95 <br /> Analyzed Date. 11/30/95 11/30/95 11/30/95 <br /> Instrument I D # H5 H5 H5 <br /> Cone Spiked 200ug/L 200pg/L 200 ug/L <br /> LCS Result: 130 150 160 <br /> LCS%Recov : 65 75 80 <br /> LCS 39-139 14-176 52-115 <br /> Control Limits <br /> Please Note <br /> The LCS 1s a control sample of known,interferent free matrix that 1s analyzed using the same reagents, <br /> es rtT <br /> ICAL preparation,and analytical methods employed for the samples The matrix spike 1s an aliquot of sample <br /> fortified with known quantities of specific compounds and subjected to the entire analytical procedure N <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> terference,the LCS recovery is to be used to validate the batch <br /> **MS=Matrix Sp1ke,MSD M$Duplicate,RPD=Relative%Difference <br /> Project Manager Page 3 of 3 9512138 BLA <8> <br />