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Q% 680 Chesapeake Drive Redwood City ( ) FAX(4t5) 364 9233 <br /> Sequoia CA 94063 415 364 9600 <br /> 404N 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 /> Smith Environmental Client Project ID 14591, 94-367 10/11 <br /> 1260 Graphics Drive Matrix Liquid <br /> Modesto, CA 95351-1502 <br /> Attention Jeanne Hornsey Work Order# 96101361-01, 03 Reported Nov 1, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> OC Batch# GC102496BTEX22A GC102496BTEx22A GC102496STEX22A GC102496BTEX22A <br /> Analy. Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep Method EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst H Porter H Porter H Porter H Porter <br /> MS/MSD # 961OB2402 961082402 961082402 961082402 <br /> Sample Conc NO NO N D N D <br /> Prepared Date 10/24/96 10/24/96 10/24/96 10/24/96 <br /> Analyzed Date 10/24/96 10/24/96 10/24/96 10/24/96 <br /> Instrument I D # GCHP22 GCHP22 GCHP22 GCHP22 <br /> Conc Spiked 10 ug/L 10 Ng/L 10 ug/L 30 pg/L <br /> Result 95 90 90 28 <br /> MS % Recovery 95 90 90 93 <br />. Dup Result 91 86 86 27 <br /> MSD % Recov 91 86 86 90 <br /> RPD 43 45 45 36 <br /> RPD Limit 0-25 0-25 0-25 0-25 <br /> LCS# BLK102496 BLK102496 BLK102496 BLK102496 <br /> Prepared Date 10/24/96 10/24/96 10/24/96 10/24/96 <br /> Analyzed Date 10/24/96 10/24/96 10/24/96 10/24/96 <br /> Instrument I D # GCHP22 GCHP22 GCHP22 GCHP22 <br /> Conc Spiked. 10pg/L 10,ug/L 10ug/L 30ug/L <br /> LCS Result 10 97 97 30 <br /> LCS % Recov 100 97 97 100 <br /> MS/MSD 60-140 60-140 60-140 60-140 <br /> LCS 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 /> SEQUO ALYTICAL 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 /> Vyt kaltis <br /> Protect Maria r * MS=Matrix Spike, MSD=MS Duplicate RPD=Relative%Difference 9610061 SSS <3> <br />