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Sequoia 680 Chesapeake Drive Pedwood 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 /> :::....:.:.::..:... ............... ............. <br /> Smith Environmental Client Project ID: '14845, 95-12201-02... <br /> €;1260 Graphics Drive Matrix: Liquid <br /> 'Modesto, CA 95351-1502 <br /> Attention: Jeanne Hornsey Work Order#: 9706714 -01, 02 Reported: Jun 27, 1997:;'; <br /> ..:...... .. : :.::.: <br /> ': <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes Gas <br /> Benzene <br /> QC Batch#: GCO61697BTEX07A GCO61697BTEX07A GC061697BTEX07A GC061697BTEX07A GC061697BTEX07A <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 8015M <br /> Prep. Method: EPA 5030 EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst: A.Porter A,Porter A. Porter A.Porter A.Porter <br /> MS/MSD#: 9706585-01 9706585-01 9706585-01 9706585-01 9705585-01 <br /> Sample Cone.: N.D. N.D. N.D. N.D. N.D. <br /> Prepared Date: 6/16/97 6/16/97 5/16/97 6/16/97 6/16/97 <br /> Analyzed Date: 5/16/97 6/16/97 6/16/97 6/16/97 6/16/97 <br /> Instrument I.D.#: GCHP-07 GCHP-07 GCHP-07 GCHP-07 GCHP-07 <br /> Cone. Spiked: 10pg/L 10yg/L 10lig/L 30pg/L 30ug/L <br /> Result: 9.3 11 12 36 72 <br /> MS%Recovery: 93 110 120 120 120 <br /> ' Dup.Result: 8.3 9.7 11 32 65 <br /> MSD %Recov.: 83 97 110 107 108 <br /> RPD: 11 13 8.7 12 10 <br /> RPD Limit: 0-25 0-25 0-25 0-25 0-25 <br /> LCS#: BLK061697 BLK061697 BLK061697 BLK061697 BLK061697 <br /> Prepared Date: 6/16/97 6/16/97 6/16/97 6/16/97 6/16/97 <br /> Analyzed Date: 5/16/97 6/16/97 6/16/97 6/16/97 6/16/97 <br /> Instrument I.D.#: GCHP-07 GCHP-07 GCHP-07 GCHP-07 GCHP-07 <br /> Cone. Spiked: 10lig/L 10Ng/L 10frg/L 30ug/L 60ug/L <br /> LCS Result: 8.9 10 11 34 69 <br /> LCS %Recov.: 89 100 110 113 115 <br /> 60-140 60-140 60-140 60-140 70-130 <br /> LCS 70-130 70-130 70-130 70-130 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 /> SE01JOIAMALYTICAL 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 /> 4- interference,the LCS recovery is to be used to validate the batch. <br /> Shelia Flynn <br /> Project Manager I **MS=Matrix Spike, MSD=MS Duplicate,RPD=Relative 96 Difference 9706714.SSS [1> <br />