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Sequoia 680 Chesapeake Drive Redwood City.CA 94063 (650) 364-9600 FAX(650) 364-9233 <br /> 404 N.Wiget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue.Suite 8 Sacramento.CA 95834 (916)921-9600 FAX(916)921-0100 <br /> mW Analytical 1455 McDowell Blvd. North,Ste.D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> ATC Associates, Inc. Client Project ID: Inland Paint 17295.0001 <br /> 1260 Graphics Drive Matrix: Liquid <br /> '} ",.Modesto, CA 95351-1502 s <br /> :Attention: Drew Van Allen Work Order#: 9809C78 01-03 Reported: Oct 1, 1998 <br /> ;<.>. - <br /> ' QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes TPH <br /> Benzene <br /> QC Batch#: H124G41W H124G41W H124G41W H124G41W H124G41W <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 8015M <br /> ' Prep. Method: 0 0 0 0 <br /> Analyst: N.A. N.A. N.A. N.A. N.A- <br /> MS/MSD #: V8090709 V8090709 V8090709 V8090709 V8090709 <br /> ' Sample Conc.: 0.092 2.6 0.74 8.9 44 <br /> Prepared Date: 9/24/98 9/24/98 9/24/98 9/24/98 9/24/98 <br /> Analyzed Date: 9/24/98 9/24/98 9/24/98 9/24/98 9/24/98 <br /> ' Instrument I.D.#: N.A. N.A. N.A. N.A. N.A. <br /> Conc.Spiked: 20 ppb 20 ppb 20 ppb 60 ppb 220 ppb <br /> Result: 20 22 21 69 274 <br /> MS %Recovery: 99 96 101 100 105 <br /> Dup. Result: 20 22 21 69 290 <br /> MSD% Recov.: 98 94 100 100 112 <br /> ' RPD: 1.5 1.1 1.3 0.16 5.7 <br /> RPD Limit: 0-25 0-25 0.25 0-25 0-25 <br /> X. <br /> ............................. <br /> LCS#: <br /> ' Prepared Date: <br /> Analyzed Date: <br /> ' Instrument I.D.#: <br /> Conc.Spiked: <br /> LCS Result: <br /> LCS%Recov.: <br /> LCS <br /> ControlControl Limits 82-120 81-115 84-115 83-115 78-120 <br /> Please Note: <br /> The LCS is a control sam pie 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 /> ELAP#1197 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 /> Ito imy�j� <br /> ' Project Manager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9809C78.AAA <2> <br />