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Sequoia 680 Chesapeake Dnve 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 /> BlaineTechServices, Inc Client Project ID Chevron 9-2033/960515 Al ` <br /> ;985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> .'Attention Jim Keller Work Order# 9605C37-03 Reported May 29, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte 1,2,4-Trichloro 4-Chloro-3 Acenaphthene 4-Nitrophenol <br /> benzene Methylphenol <br /> OC Batch#: MS0522968270EXA MS0522WZ270EXA MS0522968270EXA MS052296WOEXA <br /> Analy. Method, EPA 8270 EPA 8270 EPA 8270 EPA 8270 <br /> Prop Method EPA 3510 EPA 3510 EPA 3510 EPA 3510 <br /> Analyst: B Pitamah B Pdamah B Pitamah B Pitamah <br /> MS/MSD#• 9605A2W3 9605A2603 9605A26W 9605A2603 <br /> Sample Cone.. N D N D N D N D <br /> Prepared Date. 5/22/96 5/22/96 5/22/96 5/22/96 <br /> Analyzed Date: 5/22/96 5/22/96 5/22/96 5/22/96 <br /> Instrument I D #: F4 F4 F4 F4 <br /> Cone. Spiked 200ug/L 200ug/L zoopg/L 200 ug/L <br /> Result: 150 130 170 69 <br /> MS%Recovery: 75 65 85 35 <br /> Dup. Result 160 130 180 82 <br /> MSD%Recov so 65 90 41 <br /> RPD: 65 00 57 17 <br /> RPD Limit 0-18 0-20 0-18 0-47 <br /> LCS#. BLK052296 BLK052296 BLK052296 BLK052296 <br /> Prepared Date: 5/22/96 5/22/96 5/22/96 5/22/96 <br /> Analyzed Date- 5/22/96 5/22/96 5/22/96 5/22/96 <br /> Instrument I D#. F4 F4 F4 F4 <br /> Cone. Spiked: 200 ug/L 200 ug/L 200 ug/L 200 u9/L <br /> LCS Result 160 150 160 33 - <br /> LCS%Recov.. so 75 80 17 <br /> LCS 39-98 23-97 46-118 10 to 80 <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 /> %Pct <br /> ANALYTICAL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> fortified with known quantities of specific compounds acid 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 /> er **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference <br /> nager Page 2 of 3 9605037 BLA <7' <br />