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15) Sequoia 10680 Chesapeake Drive Redwood City,CA 9409 (415) 364-9600 FAX(415) 364-9233 <br /> 1900 Bates Avenue,Suite L Concord,CA 94520 (510) 686.9600 FAX(510)686-9689 <br /> TIW Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> . :::::.:::.::.::.:::.::.:::::::.::.::.:::.:::.:::.:::.:::.::.;:.:::::.::.:::.::.::.::.:::.:::.::::.:::.:::.::.::::::::::.:: <br /> .Mill ..... <br /> r.,ek Associates ::....................:::::::::Client Pro`ectpo:>s<:::;:::......................................................................................................................................... <br /> Ce <br /> P.O. Box 130 Matrix: Liquid <br /> ;:::Milford, CA 96121 <br /> Work Order#: 9412B64 -01-04 Reported: Jan 4 1995:::':: <br /> :::.........................................................................................................................................................................................................................................................................�...............::: <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Lead Total Recoverable <br /> Petroleum Hydrocarbons <br /> OC Batch#: ME1220947000MDA IN1229944181FTA <br /> Analy. Method: EPA 239.2 EPA 418.1 <br /> Prep. Method: EPA 3020 N/A <br /> Analyst: J.Martinez K.Hynes <br /> MS/MSD#: 9412139601 BLK122994 <br /> Sample Conc.: N.D. N.D. <br /> Prepared Date: 12/20/94 12/29/94 <br /> Analyzed Date: 12/20/94 12/29/94 <br /> Instrument I.D.#: MTJA1 FTIR1 <br /> Conc. Spiked: 0.050 mg/L 7.0 mg/L <br /> Result: 0.036 7.2 <br /> MS%Recovery: 72 103 <br /> Dup. Result: 0.034 7.1 <br /> MSD%Recov.: 68 101 <br /> RPD: 5.7 1.4 <br /> RPD Limit: 0-30 0-30 <br /> LCS #: BLK122094 <br /> Prepared Date: 12/20/94 <br /> Analyzed Date: 12/20/94 <br /> Instrument I.D.#: MTJA1 <br /> Conc. Spiked: 0.050 mg/L <br /> LCS Result: 0.050 <br /> LCS% Recov.: 100 - <br /> 70-130 <br /> LCS 75-125 <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 /> S U I 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 /> 5S n hin <br /> Project Manager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9412B64.AAA <1> <br /> In <br />