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• 68Qeake Drive Redwood City,CA 940( J (650)364-9600 FAX(650)364-9233 <br /> Sequoia 4o,i N wiget Lane Walnut Creek,C4 94598 (925)988-9600 FAX(925)988-9673 <br /> + 819 Striker Avenue Sulte 8 Sacramento CA 95834' (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 1551 Industrial Road San Carlos,CA 940704111 (650)232-9600 FAX(650)232-9612 <br /> n ihr'.Lf.+{CrC, n is �•'c vh.Y, <br /> 1C,*S.'6r'"j"?l.4 3Yh y,. Js Hrvr r Vor ax "'ni ♦;i'Km 4Fti y.-'Gµ]n]n%� Y}y�• Y +nom { ++ M : *^{+S <br /> h'+,.a6. ,w, 3taY.� xZ. {� 9 Win <br /> L{ i f,,x t w <br /> Cambria nvironmental Tech Client'rojectl: Shelf 341 1 in;5t, §ipon $i <br /> 1144 65th St, Ste C Matrix Liquid : <br /> Oakland, CA 94608 { <br /> Attention Owen Ratchye Work Order# 9903085 01-06 Reported Mar 191 1999r <br /> nW+.�r:r. 1'f Sl Sr 'Y9•A^K+SK F-r r '"C" .� <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Methanol Ethanol Iso-propanol <br /> QC Batch#. GC03MMISHSHSB GCO3059918HSHSB GCO3059918HSHSB <br /> Analy. Method- ISHS ISHS ISHS <br /> Prep Method: HS HS HS <br /> Analyst: M M M M M M <br /> MS/MSD#: 9902E2404 9902E2404 9902e2404 <br /> Sample Cone.: 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 1 D# GCV1 GCv1 GCv1 <br /> Cone. Spiked 8 0 mg/L 8 0 rng/L 8 0 mg/L <br /> Result: 77 88 9 3 <br /> MS%Recovery: 96 110 116 "+� <br /> Dup. Result 73 85 87 ' <br /> MSD%Recov 91 106 109 <br /> RPD" 53 35 67 <br /> RPD Limit: 0-60 0-50 0-50 <br /> V- <br /> 19,; <br /> E•h' Z7 <br /> 1 v }{ , <br /> LCS <br /> rF{fc <br /> #- LCs0305m LCSOM599 LCS030599 <br /> Prepared Date 3/5/99 3/5/99 3/5/99 <br /> Analyzed Date. 3/5/99 3/5/99 3/5/99 <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,interferent free matrix that is analyzed using the same reagents, <br /> SEQUOIA ANALYTICAL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> 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 /> n KI f <br /> Project Manager **MS=Matrix Spike,MSD-MS Duplicate,RPD=Relative%Difference 9903085 CCC <I> <br />