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Sequoia 680 Chesapeake Drive Redwood CRY CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94599 (925)988-9600 FAX(92 5)988-9673 <br /> N-0Analytical 8l9 Striker Avenue Suite 8 Sacramento CA 95$34 (916)921-9600 FAX(915)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 1551 Industrial Road San Carlos,CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> v <br /> Sequoia Analytical Client Project ID S902349/PEG <br /> 819 Striker Ave, Suite 8 Matrix Liquid <br /> Sacramento, CA 95834 <br /> Attention Sandra R Hanson Work Order# 9903046 Reported Mar 10, 1999 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Methanol Ethanol Iso-Propanol <br /> GIC Batch# GC03059918HSHSB GC0305991SHSHSB GC0305991SHSHSB <br /> Anally Method ISMS ISHS ISHS <br /> Prep Method HS HS HS <br /> Analyst M M MM M M <br /> MS/MSD# 99021=2404 9902E2404 9902E2404 <br /> Sample Conc ' N D N D N D <br /> Prepared Date 3/4/99 3/4/99 3/4/99 <br /> Analyzed Date. 3/4/99 3/4/99 3/4/99 <br /> Instrument I D#- GCv1 GCv1 GCv1 <br /> Cone Spiked 8 0 mg/L 8 0 mg/L 8 0 mg/L <br /> Result' 77 88 9 3 <br /> �S% Recovery 96 110 116 <br /> Dup Result 73 85 87 <br /> MSD %Recov 91 106 109 <br /> RPD. 53 35 67 <br /> RPD Limit 0-50 0-50 0-50 <br /> LCS# LCS030599 LCS030599 LCS030599 <br /> Prepared Date 3/5/99 3/4/99 3/4/99 <br /> Analyzed Date 3/5/99 3/4/99 3/4/99 <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. 83 91 91 <br /> LCS %Recov 104 114 114 <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,interferent4ree matrix that is analyzed using the same reagents, <br /> QUOIA AN L I AL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> fortified with known quantities of speciftc compounds and subfected to the entire analytical procedure If <br /> the recovery of analytes from the matrix spike does not tall within specified control limits due to matrix <br /> interference,the LCS recovery is to be used to validate the batch <br /> !Davi plchette **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative 96 Difference <br /> Project Manager 9903046 SSS <1 <br />