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.1 r, <br /> �7La uoia 680Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 1 404 N W Set Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> tr�ll>� Analytical 8t9 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792-1865 FAX(707)792-0342 <br /> •� v fi <br /> .Gettler Ryhan/Ge-ostrategies 'Client Project ID Former Unoc' ..>a <br /> al Facility#5098' <br /> 36747 Sierra Court, Ste J Matrix Uquid <br /> Dublin, CA 94568 <br /> Attention Deanna Harding Work Order# 9809909 01-10 Reported Oct 9, 1998 . <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Methanol Ethanol iso-propanol <br /> QC Batch#- GCO917981SHSHSB GCO917981SHSHSB GCO917981SHSHSS <br /> Analy Method ISHS ISHS ISHS <br /> Prep Method HS HS HS <br /> Analyst T Sorokin T Sorokin T Sorokin <br /> MS/MSD # 980974107 980974107 980974107 <br /> Sample Conc N D ND ND <br /> Prepared Date 9/16/98 9/16/98 9/16/98 <br /> Analyzed Date 9/16/98 9/16/98 9/16/98 <br /> Instrument I.D # GCV1 GCV1 GCV1 <br /> Conic Spiked 8 0 mg/L 8 0 mg/L 8 0 mg/L <br /> Result 71 7 9 84 <br /> MS % Recovery 89 99 105 <br /> Dup Result 68 79 83 <br /> is MSD % Recov 85 99 104 <br /> RPD 43 00 12 <br /> RPD Limit 0-50 0-50 0-50 <br /> LCS #. LCS091798 LCS091698 LCS091698 <br /> Prepared Date 9/17/98 9/16/98 9/16/98 <br /> Analyzed Date 9/17/98 9/16/98 9/16/98 <br /> Instrument I D # GCV1 GCV1 GCV1 <br /> Conic Spiked 8 0 mg/L 8 0 mg/L 8 0 mg/L <br /> LCS Result 67 70 75 <br /> LCS % Recov.. 84 88 94 <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 /> SEQUOIA ANALYTICAL preparation,and analytical methods employed for the samples The matnx spike is an aliquot of sample <br /> fortified with known quantities of specific compounds and subjected to the entire analytical procedure if <br /> r S the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> Tod Granlcher interference,the LCS recovery Is to be used to validate the batch <br /> Project Manager **MS=Matrix Spike,MSD-MS Duplicate,RPD-Flelative%Difference 9809909 GET e2> <br />