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Sequoia 680 Chesapeake Dnve Redwood GM CA 94063 (650) 364 9600 FAX(650)364-9233 <br /> ID 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510) 988-%73 <br /> frol� Analytical 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 92t %00 FAX(916)921 0100 <br /> Blaine Tech Services, Inc Client Project ID Shell Stockton j 971223-F1 <br /> 1680 Rogers Ave Matrix Liquid <br /> San Jose, CA 95112 <br /> Attention Fran Thie Work Order# 9712F97-01 Reported Jan 8, 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Methanol <br /> QC Batch#: GC123097(SHSHSB <br /> Analy. Method. ISHS <br /> Prep. Method: HS <br /> Analyst: T Tran <br /> MS/MSD #. 9712D1505 <br /> Sample Conc N D <br /> Prepared Date 12/30/97 <br /> Analyzed Date 12/30/97 <br /> Instrument 1 D # GCv1 <br /> Conc. Spiked s 0 mg/L <br /> Result. 87 <br /> MS % Recovery: 109 <br /> Dup. Result 91 <br /> MSD % Recov 114 <br /> RPD 45 <br /> -RPD-timit: 0-50 <br /> LCS # BLK123197 <br /> Prepared Date 12/31/97 <br /> Analyzed Date 12/31/97 <br /> Instrument LD #• GCv1 <br /> Conc. Spiked 8 0 mg/L <br /> LCS Result 86 <br /> LCS % Recov. 108 <br /> 50-150 <br /> LCS 50-150 <br /> Control Limits <br /> Please Note <br /> The LCS is a control sample of known,interferent-free matrix that is analyzed using :aliquot <br /> e reagen <br /> S U A NALYTICAL preparation,and analytical methods employed for the samples The matrix spike is an f sarnpifortified with known quantities of specific compounds and subjected to the entire analycedure If <br /> the recovery of analytes from the matrix spike does not fall within specified control limitmatrix <br /> interference,the LCS recovery is to be used to validate the batch <br /> Pe y enner <br /> Project Manager **MS=Matrix Spike, MSD=MS Duplicate, RPD=Relative's Difference 9712F97 BLA <2> <br /> - - - - - -PC/, <br />