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680 Chesapeake Drrve Redwood City CA 94063 (650) 364-9600 FAX(650) 364 9233 <br /> 1 Sequoia 404 N Wiget Lane Walnut Creek CA 94598 (925)988 9600 FAX(925)988-9673 <br /> 819 Stoker Avenue Swte 8 Sacramento CA 95834 (916)921-9600 FAX(916)921 0100 <br /> Analytical 1455 MCDoweil Blvd North Ste D Petaluma CA 94954 (707) 792 1865 FAX(707)79Z 0342 <br /> Blaine Tech Services, Inc Client Project ID Chevron 9-8264/ 980810-T1 <br /> 1680 Rogers Ave Matrix Liquid <br /> San Jose, CA 95112 <br /> Attention Fran Thie Work Order # 9808910-01 Reported Aug 31, 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Total Recoverable <br /> Petroleum Hydrocarbons <br /> QC Batch# SPOS20985520EXB <br /> Analy Method SM 552OBF <br /> Prep Method SM 5520BF <br /> Analyst H Olonan <br /> MS/MSD # BLK082098 <br /> Sample Conc N D <br /> Prepared Date 8/20/98 <br /> Analyzed Date 8/24/98 <br /> Instrument I D # MANUAL <br /> Conc Spiked 10 mg/L <br /> Result 84 <br /> MS % Recovery 84 <br /> Dup Result 8 3 <br /> MSD % Recov 83 <br /> RPD 12 <br /> RPD Limit 0-30 <br /> LCS # <br /> Prepared Date <br /> Analyzed Date <br /> Instrument LD # <br /> Conc Spiked <br /> LCS Result <br /> LCS % Recov <br /> 60-140 <br /> LCS 70-130 <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 /> SECU01 NALYTICAL 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 /> Vctlegory <br /> Interference,the LCS recovery is to be used to validate the batchnager **MS=Matrix Spike,MSD=MS Duplicate RPD=Relative% Difference 9808910 BLA <Qa <br />