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equo 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> i 404 N Wiget Lane Walnut Creek CA 94598 (925)988-%00 FAX(925)988-9673 <br /> � � � 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> w4* 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> lytil <br /> 110Blaine Tech Services, Inc Client Project ID Shell 1071 North Main St <br /> 1680 Rogers Ave Matrix Liquid <br /> San Jose, CA 95112 <br /> Attention Fran Thie Work Order# 9810727 -01-05 Reported Oct 30, 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Methanol Ethanol iso-Propanol <br /> QC Batch# GC1016981SHSHSB GC1016981SHSHS13 GC1016981SHSHSB <br /> Analy Method ISHS EPA 8020 EPA 8020 <br /> Prep Method HS HS HS <br /> Analyst T Sorokin T Sorokin T Sorokin <br /> MS/MSD# 981074217 981074217 981074217 <br /> Sample Cone ND ND ND <br /> Prepared Date 10/15/98 10/15/98 10/15/98 <br /> Analyzed Date 10/15/98 10/15/98 10/15/98 <br /> Instrument I D # GCV1 GCV1 GCv1 <br /> Conc Spiked 8 0 mg/L 8 0 mg/L 8 0 mg/L <br /> Result 72 84 87 <br /> MS % Recovery 90 105 109 <br /> Dup Result 70 81 85 <br /> MSD % Recov 88 101 106 <br /> RPD 28 36 23 <br /> RPD Limit 0-50 0-50 0-50 <br /> LCS # LCS101698 LCS101698 LCS101698 <br /> Prepared Date 10/16/98 10/16/98 10/16/98 <br /> Analyzed Date 10/16/98 10/16/98 10/16/98 <br /> Instrument I D # GCV1 GCV1 GCV1 <br /> Cone Spiked 8 0 mg/L 8 0 mg/L 8 0 mg/L <br /> LCS Result 70 75 77 <br /> LCS % Recov 88 94 96 <br /> 50-150 50-150 50-150 <br /> LCS 70-130 70-130 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 /> S 1 NALYTICAL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> f 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 /> g Penner <br /> P`e ect Manager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative% Difference 9810727 BLA <1> <br />