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1 <br /> Sequoia 680 Chesapeake Drive Redwood CiM CA 94063 (415) 364 9600 FAX(415) 364 9239 <br /> %� 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 96W FAX(510)988 9673 <br /> �I� Analytical 819 Stnkcr Avenue Suite 8 Sacramento,CA 95834 (916) 921 96W FAX(916)921 0100 <br /> ,..<i,�^,^'at8£`.c,µ� ct ;,i :c ic.,.L „ ,c �,<}, x: ,:k: ' = „a„` - • <br /> Blaine Tech Services, Inc Client Project ID Chevron 9-2033 /960822-Gl <br /> X985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> Attention Jim Keller Work Order# 9608E47-03 Reported Sep 11, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> OC Batch#' GC083096BTEX2IA GC083096BTEX2IA 1300&3096BTEXVA GCO83096BTEX21A <br /> Aanaly. Method. EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep. Method EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst' D Jirsa D Jirsa D Jirsa D Jirsa <br /> MS/MSD # 9W8E7603 96ME7603 960SE7603 960SE7603 <br /> Sample Cone . N D N D N D N D <br /> Prepared Date* 8/30/96 8/30/96 8/30/96 8/30/96 <br /> Analyzed Date 8/30/96 8/30/96 8/30/96 8/30/96 <br /> Instrument I D #: GCHP21 GCHP21 GCHP21 GCHP21 <br /> Cone Spiked 10 jag/L 101ig/L 10 jig/L 30Yg/L <br /> Result. 11 99 98 30 <br />•MS % Recovery 110 99 98 i00 <br /> Dup. Result. 11 10 10 32 <br /> MSD % Recov 110 100 100 107 <br /> RPD' 00 10 20 65 <br /> RPD Limit: 0-25 0-25 0-25 0-25 <br /> LCS # BLK083096 BLK083096 BLK083096 BLK083096 <br /> Prepared Date. 8/30/96 8/30/96 8/30/96 8/30/96 <br /> Analyzed Date 8/30/96 8/30/96 8/30/96 8/30/96 <br /> Instrument LD.#: GCHP21 GCHP21 GCHP21 GCHP21 <br /> Cone. Spiked 1opg/L 10pg/L 10pg/L 30yg/L <br /> LCS Result. 11 10 10 31 <br /> LCS% Recov 110 100 100 103 <br /> 60-140 60-140 60-140 60-140 <br /> LCS 70.130 70.130 70.130 70-130 <br /> Control Limits <br /> Please Note <br /> The LCS is a control sample of known,interferent4ree matrix that is analyzed using the same reagents, <br />�SE 1 A LYTICAL 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 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 /> Pe Penner <br /> Project Manager *"MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9608E47 BLA 47> <br />