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- , Sequoia680 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 /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> fr <br /> :. X. <br /> ::.,:::,:::.:::.:::. .: <br /> Canonie Environmental Client Project ID: 94-369, Stockton Smith Canal <br /> 1710 Main Street^ - Matrix: Liquid <br /> 'Escalon, CA 95320 <br /> P P <br /> ::::Attention: John Lane Work Order#: 9503J75-01, 5 Reported: Apr 10, 1995> <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> OC Batch#: GCO40595BTEX03A GCO40595BTEX03A GCO40595BTEX03A 00040595BTEX03A <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep. Method: EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst: R.Vincent R.Vincent R.Vincent R.Vincent <br /> MS/MSD#: 9503M3208 9503M3208 9503M3208 9503M3208 <br /> Sample Cone.: N.D. N.D. N.D. N.D. <br /> Prepared Date: 4/5/95 4/5/95 4/5/95 4/5/95 <br /> Analyzed Date: 4/5/95 4/5/95 4/5/95 4/5/95 <br /> Instrument 1.D.#: GCHP3 GCHP3 GCHP3 GCHP3 <br /> Conc. Spiked: 10 ug/L 10 ug/L 10 ug/L 30 ug/L <br /> Result: 8.7 8.8 8.5 26 <br /> >• MS %Recovery: 87 88 85 87 <br /> } <br /> Dup. Result: 9.1 9.5 9.1 27 <br /> MSD% Recov.: 91 95 91 90 <br /> RPD: 4.5 7.7 6.8 3.8 <br /> RPD Limit: 0-50 0-50 0-50 0-50 <br /> {� { <br /> LCS #: <br /> Prepared Date: - - - <br /> Analyzed Date: - <br /> Instrument I.D.#: - <br /> Conc.Spiked: - - <br /> LCS Result: - - <br /> LCS%Recov.: <br /> MS/MSD <br /> LCS 71-133 72-128 72-130 71-120 <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 /> l 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 /> Vickie Tague Clark <br /> Project Manager MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9503,J75.CAN <2> <br /> Od <br />