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j Sequoia 680 Chesapeake Dnve Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Blaine Tech Services, Inc Client Project ID Chevron 9-8632/970605-K1 <br /> 1680 Rogers Avenue Matrix Solid <br /> San Jose, CA 95112 <br /> Attention Fran Thie Work Order# 9706358 -05 Reported Jun 20, 1997 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Total Petroleum <br /> Hydrocarbons <br /> OC Batch# IN06147418100A <br /> Analy Method EPA 4181 <br /> Prep Method N A. <br /> Analyst, J Saadeh <br /> MS/MSD # LCS DUP <br /> Sample Conc N D <br /> Prepared Date 6/12/97 <br /> Analyzed Date 6/12/97 <br /> Instrument I D # FTIRi <br /> Conc Spiked 42mg/L <br /> Result 42 <br /> •MS % Recovery 100 <br /> Dup. Result 39 <br /> MSD % Recov 93 <br /> RPD* 74 <br /> RPD Limit. 0-30 <br /> LCS # LCS061297 <br /> Prepared Date* 6/12/97 <br /> Analyzed Date 6/12/97 <br /> Instrument I D # FT1111 <br /> Conc Spiked 4 2 mg/L <br /> LCS Result 39 <br /> LCS % Recov 93 <br /> 60.140 <br /> LCS 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 /> TEO DIA NALYTICAL 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 /> Peggy Penner <br /> Project Manage **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9706358 BLA <1 a <br />