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f, <br /> • Sequoia680 Chesapeake Drive Redwood GM 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 /> fall? Analytical 819 Striker Avenue Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921 0100 <br /> Blaine Tech Services, Inc Client Project ID Chevron 9-2033 /960822-G1 v <br /> t'985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> Attention Jim Keller Work Order# 9608E47-01 Reported Sep 11, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte 1,2,4-Trichloro 4-Chloro-3 Acenaphthene 4-Nitrophenol <br /> benzene Methylphenol <br /> GC Batch# MSo826%w70EXA MS08269W70EKA MS0826968270EXA MS0826968270EXA <br /> Analy, Method EPA 8270 EPA 8270 EPA 8270 EPA 8270 <br /> Pre . Method EPA 3510 EPA 3510 EPA 3510 EPA 3510 <br /> Analyst. B Pitamah B Pitamah B Pitamah B Pitamah <br /> MS/MSD #. 9608E790,4 9608E7904 9608E7904 9608E7904 <br /> Sample Cone , N D N D u D N D <br /> Prepared Date 8/26/96 8/26/96 8/26/96 8/26/96 <br /> Analyzed Date 8/27/96 8/27/96 8/27/96 8/27/96 <br /> Instrument I D # F4 F4 F4 F4 <br /> Cone Spiked 200 Ng/L 200 yg/L 200 yg/L 200 pg/L <br /> Result' 170 170 220 63 <br /> MS % Recovery 85 85 110 32 <br /> Dup Result 180 170 230 83 <br /> MSD % Recov 90 85 115 42 <br /> RPD 57 00 44 27 <br /> RPD Limit 0-30 0-30 0-30 0-30 <br /> LCS #. BLK082696 BLK082M BLK082M BLK082M <br /> Prepared Date 8/26/96 8/26/96 8/26/96 8/26/96 <br /> Analyzed Date 8/26/96 8/26/96 8/26/96 8/26/96 <br /> Instrument I D.# Hs H5 H5 H5 <br /> Conc Spiked 200 ug/L 200 pg/L 200 ug/L zoo Ng/L <br /> LCS Result: 150 170 180 47 <br /> LCS%Recov ,, 75 85 90 24 <br /> 43-107 42-107 43-107 DL-118 <br /> LCS 60-95 54100 51-96 21-114 <br /> Control Limits <br /> Please Note <br /> The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> tU AN LYTICAL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> ,rtified with known quantities of specific compounds and subjected to the entire analytical procedure Ifthe 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 /> nner *"MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference <br /> Project Manager Page 2 of 3 9608E47 SLA -e3> <br />