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e Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650) 364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510)988-9600 FAX(510)988-9673 <br /> nker Avenue Suite 8 Sacramento CA 95 (916)921-9600 FAX(S)MA)9,21 01G0 <br /> Analytical McDowell Blvd North Ste D Petaluma.CA 9495 (707)792-1865 FAX(707)792-0342 <br /> Blaine Tech Services, Inc " Client Prolect'ID Shell 3725 S Tracy Blvd <br /> 1680 Rogers Ave Matrix Liquid <br /> San Jose, CA 95112 <br /> Attention Fran Thle Work Order# 9805F08 -01-04 Reported Jun 11, 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Methanol <br /> OC Batch# GCO502981SHSHSB r - <br /> Analy Method: ISHS <br /> Prep Method. HS <br /> Analyst T Sorokin <br /> MS/MSD # 980577244 <br /> Sample Conc N D <br /> Prepared Date 5/29/98 <br /> Analyzed Date: 5/29/98 <br /> instrument I D #: GCv1 <br /> Conc Spiked: 8 0 mg/L <br /> Result 80 ' <br /> MS % Recovery 100 <br /> Dup Result 76 J <br /> MSD % Recov. 95 <br /> RPD 51 <br /> RPD Limit 0-50 <br /> -- - -- -- LCS #: f3LK460298 - -- — --- -- -- —-- --- —---- -_--— -—--- ---- --- - --- - <br /> Prepared Date, 6/2/98 <br /> Analyzed Date: 6/3/98 <br /> Instrument LD #, GCv1 <br /> Conc. Spiked: 8 0 mg/l. <br /> LCS Result: __ _66 - - — - - - - - - <br /> LCS % Recov : 83 <br /> 54-150 <br /> LCS 70-130 <br /> Control Limits - - - <br /> Please Note <br /> The LCS is a control sample of known,Interferent-fres matrix that is analyzed using the same reagents, <br /> UQ A 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 <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 /> Peg ginner <br /> ect Manager **MS=Matrix Spike, MSD=MS Duplicate, RPG=Relative% Difference 9805FO8 BLA <1> <br />