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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364%00 FAX(650)364 9233 <br /> 404 M Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 %00 FAX(9t6)921.0100, <br /> Z_ <br /> r <br /> f+fOr Wr� �' f f <br /> ;Blame Tech Services,I nc r,Y+ Client Prosect ID- r 8 Q gi8+xccg6n j 970822-14 <br /> 1680 Rogers Ave Matrix Liquid <br /> fi San,lose, CA 95112 { <br /> Attention Fran Thie Work Order# 9708D38-04 A u Reported Sep 8, 1997 , <br /> f fa h { <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Benzene Toluene Ethyl Xylenes Gas ' <br /> Benzene <br /> OC_Batch# _GC082997BTEX17A G_C082997BTEXITA CsC082997$TDC17A GC0829978TEX17A , ---_GC0829978TD(17A <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 A Miraftab A Mirattab A Miraftab <br /> MS/MSD # 9708C7105 9708107105 970807105 970807105 1 -9708C7105 <br /> Sample Cone N D N D N D N D - N D <br /> Prepared Date 8/29/97 8/29/97 8/29/97 8/29/97 8/29/97 <br /> Analyzed Date 8/29/97 8/29/97 8/29/97 8/29/97 T 8/29/97 <br /> Instrument LD # GCHP17 GCHP17 GCHP17 GCHP17 GCHP17 <br /> Cone.Spiked 10yg/L 10Ng/L 10yg/L 30ug/L 60pg/L <br /> Result 86 88 87 26 59 <br /> MS %Recovery 86 88 87 87 98 <br /> Dup Result 84 84 85 F 25 57 <br /> MSD % Recov 84 84 85 83 95 <br /> RPD 24 47 23 39 34 <br /> RPD Limit 0-25 0-25 0-25 0-25 0-25 <br /> LCS #" 8LK082997 BLK082997 BLK082997 T 13LK082997 BLK082997 <br /> Prepared Date - -- 8/29/97 8/29/97 6/29/97 - - - _ 8/29/97 - -- - 8/29/97 <br /> Analyzed Date. 6/29/97 8/29/97 8/29/97 8/29/97 8/29/97 <br /> Instrument I.D # GCHP17 GCHP17 GCHP17 GCHP17 GCHP17 <br /> Cone. Spiked 10 Ng/L 10 vg/L 10 fug/i - 30 dug/L - 60 dug/L <br /> LCS Result 83 83 85 25 57 <br /> LCS % Recov 83 83 85 83 95 <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 /> SE A NALYTICAL 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 enure analytical procedure <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 /> gg ginner <br /> Pr t Manarggr / **IUIg=Mat*,�Cp�4n MC[1_n/ig ni,p[rz►e GiPL1 %Dffe•e^ce 3708D38 SLA <4s <br />