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11 u� Sequoia 680 Chesapeake Drive 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 /> �ill>7 Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> i <br /> Pacific Environmental Group Client Project ID 320-159 1A/9-1452, Main St <br /> 2025 Gateway Place, Suite 440 Matrix SOLID <br /> San.lose, CA 95110 <br /> Attention R DeJung Work Order# 9601762 01-20 Reported Jan 26, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Diesel <br /> QC Batch# 000116960HBPEXA <br /> Anally. Method EPA 8015 Mod <br /> Prep Method EPA 3550/DHS <br /> Analyst J Minkel <br /> MS/MSD# 960176201 <br /> Sample Conc N D <br /> Prepared Date 1/16/96 <br /> Analyzed Date 1/17/96 <br /> Instrument I D # GCHP415 <br /> Conc Spiked 25 mg/kg <br /> I <br /> Result 32 <br /> • MS % Recovery 128 <br /> Dup Result. 29 <br /> MSD % Recov 116 <br /> RPD 10 <br /> RPD Limit 0-50 <br /> LCS # BLK011696 <br /> Prepared Date 1/16/,96 <br /> Analyzed Date: 1/17/96 <br /> Instrument I D # GCHP4B <br /> Conc Spiked 25 mg/kg <br /> LCS Result 20 <br /> LCS % Recov ,. 80 <br /> LCS 38-122 <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 /> j � 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 /> Brucle Fletcher <br /> Project Manager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Retative%Difference 9501762 PPP <3> <br /> -- - nllz� - <br />