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Sequoia680 Chesapeake Dnve Redwood City,CA 94063 (650) 364-9600 FAX(650)364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> fall' Analytical 819 Striker Avenue,Suite a Sacramento,CA 95834 (916) 921 9600 FAX(916)921 MO <br /> V Blaine Tech Services, Inc " + Ghent Protect ID Shell Stockton /97i009-G2 <br /> }1680 Rogers Ave Matrix Liquid <br /> `,San.Jose, CA 95112 <br /> Attention Fran Thie Work Order# 9710596-06, 08 Reported Oct 17, 1997, <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Benzene Toluene Ethyl Xylenes Gas <br /> Benzene <br /> OC Batch#. GC101397BTEX03A GC101397BTEX03A GC101397BTEX03A GC101397BTEX03A GC101397BTEX03A <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.Miraftab A Miraftab k Miraftab A.Miraftab A.Miraftab <br /> MS/MSD # 971057803 971057803 971057803 971057803 971057803 <br /> Sample Cone . N D N D N D N D N D <br /> Prepared Date. 10/13/,97 10/13/97 10/13/97 10/13/97 10/13/97 <br /> Analyzed Date. 10/13/97 10/13/97 10/13/97 10/13/97 10/13/97 <br /> Instrument i D #: GCHP3 GCHP3 GCHP3 GCHP3 GCHP3 <br /> Cone Spiked 10 pg/L 10 yg/L 10 pg/L 30 pg/L 60 pg/L <br /> Result 85 84 84 23 66 <br /> of % Recovery 85 84 84 77 110 <br /> Dup. Result- 88 87 87 24 68 <br /> MSD % Recov 88 87 87 80 113 <br /> RPD` 35 35 35 43 30 <br /> RPD Limit: 0-25 0-25 0-25 0-25 0-25 <br /> LCS # BLK101397 BLK101397 BLK101397 BLK101397 BLK101397 <br /> Prepared Date: 10/13/97 10/13/97 10/13/97 10/13/97 10/13/97 <br /> Analyzed Date: 10/13/97 10/13/97 10/13/97 10/13/97 10/13/97 <br /> Instrument I D.# GCHP3 GCHP3 GCHP3 GCHP3 GCHP3 <br /> Conc. Spiked 10pg/L 10 pg/L 10 jig/L 30 pg/L 60 pg/L <br /> LCS Result 491 89 89 25 70 <br /> LCS % Recov.: 91 89 89 83 117 <br /> 60-140 60-140 60-140 60-140 60-140 <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 /> 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 /> eg Pe ner <br /> o ct Manager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9710596 BLA <5> <br />