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(D Sequoia 10 680 Chesapeake Drive Redwood City,CA 940. (415) 364-9600 FAX(415) 364-9233 <br /> 1900 Bates Avenue Suite L ►Concord CA4 <br /> 9 520 (510) 686-9600 FAX(510) 686-9689 <br /> war Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX (916)921-0100 <br /> . <br /> Mill Creeic;.A;:::<:>:.. .........,......................... ............................................................................................................ <br /> ssociates <br /> Client Project ID: 016 <br /> ..P.O. Box 130 Matrix: Solid <br /> Milford, CA 96121 <br /> :....Attention:e on. Russell JuncalWork Order#: 9412679-01-02 Reported: Jan 10 1995:" <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Total Recoverable Acenaphthene Phenanthrene Pyrene <br /> Petroleum Hydrocarb. <br /> QC Batch#: IN0105954181FTA GC1230948310EXA GC1230948310EXA GC1230948310EXA <br /> Analy. Method: EPA 418.1 EPA 8310 EPA 8310 EPA 8310 <br /> Prep. Method: N/A EPA 3550 EPA 3550 EPA 3550 <br /> Analyst: K.Hynes L.Haar L.Haar L.Haar <br /> MS/MSD#: BLK123094 BLK123094 BLK123094 <br /> Sample Conc.: N.D. N.D. N.D. <br /> Prepared Date: 12/30/94 12/30/94 12/30/94 <br /> Analyzed Date: 1/5/95 1/5/95 1/5/95 <br /> Instrument I.D.#: GCw1 GCw1 GCw1 <br /> Conc. Spiked: 1000Ng/Kg 1000Ng/Kg 100pNg/Kg <br /> Result: * 1100 1100 1300 <br /> MS % Recovery: 110 110 130 <br /> Dup. Result: * 990 1000 1200 <br /> MSD % Recov.: 99 100 120 <br /> RPD: 11 9.5 8.0 <br /> RPD Limit: 0-50 0-50 0-50 <br /> LCS#: LCS010595 <br /> Prepared Date: 1/5/95 <br /> Analyzed Date: 1/5/95 <br /> Instrument I.D.#: FTIR1 <br /> Conc. Spiked: 230 mg/Kg <br /> LCS Result: 230 <br /> LCS % Recov.: 100 <br /> 60-140 50-150 50-150 50-150 <br /> LCS 80-120 <br /> Control Limits <br /> *MS/MSD diluted out. <br /> Please Note: <br /> The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> *Ziect <br /> 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 /> Irl nnager **MS=Matrix Spike, MSD=MS Duplicate,RPD=Relative%Difference 9412G79.MMM <2> <br /> t�,rri <br />