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Sequoia SBO Chesapeake Drive Redwood City,CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 4D 404 N ,Viget Lane Walnut CreekCA 9459$ <br /> g (510) 98$ 9600 FAX(510)98$ 9673 <br /> q1W Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Blaine Tech Services, Inc ClienfProject ID Shell Stockton j 971009-G2 Y { <br /> f <br /> 1680 Rogers Ave Matrix Liquid <br /> San Jose, CA 95112 u <br /> x <br /> Attention Fran Thle Work Order# 9710596 -01-09 Reported Oct 17, 1997„ <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Methanol Ethanol Iso-Propanol <br /> QC Batch#: GC1013971SHSHSB GC1013971SHSHSB GC1013971SHSHS13 <br /> Analy. Method: ISH5 ISHS 1SHS <br /> Prep Method: HS HS HS <br /> Analyst: T Tran T Tran T Tran <br /> MS/MSD#: 971005201 971005201 971005201 <br /> Sample Conc : N D N D N D <br /> Prepared Date: 10/13/97 10/13/97 10/13/97 <br /> Analyzed Date: 10/13/97 10/13/97 10/13/97 <br /> Instrument I D #: GCV1 GCV1 GCV1 <br /> Conc. Spiked: 8 0 mg/L 8 0 mg/L 8 0 mg/L <br /> Result- 79 81 79 <br /> dr % Recovery 99 101 99 <br /> Dup Result: 75 so 78 <br /> MSD % Recov : 94 100 98 <br /> RPD: 52 12 13 <br /> RPD Limit: 0-50 0-50 0-50 <br /> LCS # BLK101497 BLK101497 BLK101497 <br /> Prepared Date: 10/14/97 10/14/97 10/14/97 <br /> Analyzed Date: 10/14/97 10/14/97 10/14/97 <br /> Instrument I.D #: GCV1 GCV1 GCV1 <br /> Conc. Spiked: 8 0 mg/L 8 0 mg/L 8 0 mg/L <br /> LCS Result n7 7 77 76 <br /> LCS % Recov - 96 96 95 <br /> 50-150 50.150 50.150 <br /> LCS 50-150 50.150 50.150 <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 /> ?gyenner <br /> NALYTICAL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> rtified 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 /> P <br /> interference,the LCS recovery is to be used to validate the batch <br /> Project Manager *"MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9710596 BLA a 1> <br />