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Sequoia 680 Chesapeake Drive Redwood City,CA 94069 <br /> 404 N Wi et Lane (650) 364 9600 1'AX(650)364 9233 <br /> AAnal8 Walnut Creek,CA 94598 (510) 98g 9600 FAX(510)988 9673 <br /> nalytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 <br /> FAX(9I6)921 D 100 <br /> �,,Gettler'Ryan/Geostrategies Client Pro ect ID f h hAtt v <br /> 1 Chevron 9-1848, Manteca <br /> 13164 Gold Camp Drive, #240 Matrix Solid # <br /> ;,Rancho Cordova, CA 95670 k` <br /> ;Attention Greg Gurss Work Order# 9708G33 -01-08 <br /> Reported Sep 11, 1997$a <br /> > hA v <br /> QUALITY CONTROL DATA REPORT <br /> Analyte methanol Ethanol <br /> iso-Propanol <br /> QC Batch#. GCO905971SHSHSA GC0905971SHSi-1SA GC0905971SHSHSA <br /> Analy. Method. ISHS ISHS <br /> Prep. Method. yg ISHS <br /> HS HS <br /> Analyst T Tran T Tran <br /> MS/MSD# 9708G3301 T Tran <br /> Sample Conc - N D 9708G330i 970863301 <br /> Prepared Date 9/5/97 s s s7N D <br /> Analyzed Date 9/5/97 9/5/,97 9/5/97 <br /> Instrument I.D #, GCV1 9/ <br /> Cone Spiked s o m OCV1 GCV1 <br /> v1 <br /> 9/K 9 8 0 m9/K9 8 0 mg/Kg <br /> Result 10 11 70 <br /> .MS % Recovery 125 138 <br /> 125 <br /> Dup Result, 97 11 <br /> MSD % Recov. 11 <br /> 121 138 138 <br /> RPD 30 00 95 <br /> RPD Limit 0-50 0-50 <br /> 0-50 <br /> LCS # BLK090597 BLK090597 13LK090597 <br /> Prepared Date' 9/5/97 9/5/97 9/5/97 <br /> Analyzed Date 9/5/97 9/5/97 9/5/97 <br /> Instrument I D # GCV1 GCV1 <br /> Cone Spiked 8 0 mg/Kg S o m GCV1 <br /> 9/K 9 8 0 mg/Kg <br /> LCS Result 74 76 <br /> LCS % Recov 7 z <br /> 93 95 90 <br /> 50-150 50-150 50-150 <br /> LCS 70-130 70-130 70.130 <br /> Control Limits <br /> Fro <br /> e <br /> VIlect <br /> LYTICAL S rs a control sample of known,interferent-free matrix that is analyzed using the same reagents,n,and analytical methods employed for the samples The matrix spike is an aliquot of sampleh known quantities of specific compounds and subjected to the entire analytical procedure Ifry of analytes from the matrix spike does not fall within specified control limits due to matrixe,the LCS recovery is to be used to validate the batch <br /> ger "*MS=Matrix Spike, MSD=MS Duplicate,RPD=Relative%Difference <br /> ,� 9708633 GET > <br />