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• <br /> IT) <br /> 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 /> 1%j7 Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)911 0100 <br /> Blaine Tech Services, Inc Client Project ID Chevron 9-8264 /661105-Cl <br /> 985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> Attention Jim Keller Work Order# 9611258-01 Reported Nov 23, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> a <br /> Analyte' Phenol 2-Chlorophenol 1,4-Dichloro- N-Nitroso-Di- <br /> benzene N-propylamine <br /> OC Batch#- MS1108968270EXA MS1108%8270EXA MS1108968270EXA M$1108968270E=XA <br /> Analy Method EPA 8270 EPA 8270 EPA 8270 EPA 8270 <br /> - Prep Method' EPA 3510 EPA 3510 EPA 3510 EPA 3510 <br /> Analyst- B Pitamah B Piiamah B Pitamah B Pitamah <br /> MS/MSD#. BLK110896 BLK110896 BLK110896 BLK110896 <br /> Sample Conc N D N D N D N D <br /> Prepared Date- 11/8/96 11/8/96 11/8/96 11/8/96 <br /> Analyzed Date 11/11/96 11/11/96 11/11/96 11/11/96 <br /> Instrument 1 D # F4 F4 F4 F4 <br /> Conc. Spiked- 200pg/L 200ug/L 200Eig/L 200lig/L <br /> Result: 54 133 98 143 <br /> MS % Recovery 27 67 49 72 <br /> Dup Result 56 134 105 149 <br /> MSD % Recov : 28 67 53 75 <br /> RPD 35 070 69 41 <br /> RPD Limit 0-30 0 30 0-30 0-30 <br /> LCS#' - - - <br /> Prepared Date: - <br /> Analyzed Date - - - - <br /> Instrument I.D #. - - - <br /> Conc. Spiked: <br /> LCS Result: - - <br /> LCS % Recov - - - <br /> MS/MSD <br /> LCS <br /> Control Limits 12-110 27-123 36-97 41-116 <br /> Please Note <br /> The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> SEQUOIA 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 and subjected to the entire analytical procedure 9 <br /> he recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> t interference,the LCS recovery is to be used to validate the batch <br /> Peggy Penner **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference <br /> Project Manag Page 1 of 3 9611258 gilt <3> <br />