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Sequoia 404 N WiLane <br /> Walnut Creek CAA 94598 <br /> 4 la) (925)988-%oo <br /> FAX 988-9673 <br /> 44w Analytical www sequoialabs com <br /> Geitler RN an Inc - Dublin Project Tosca <br /> 6747 Sit.rra Court Suite , Project Number Toscon' 11192 Reported <br /> Dublin CA 94568 - Project Manager Doug Lee 19-Oct-01-10 48 <br /> Total Purgeable Hydrocarbons (C6-C1.2), BTEX and MTBE by DHS LUFT - Quality Control <br /> Sequoia Analytical - Walnut Creek <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch IJ08002 - EPA 5030E P/T <br /> LCS (IJ08002-BS2) Prepared&Analyzed 09-Oct-01 <br /> BtniLnt 181 050 ug/l 200 90 5 70-130 <br /> I uiuuit 192 050 200 960 70-130 <br /> 1 thylbenceni 20 1 050 200 100 70-130 <br /> Xs lints(total) 597 050 600 995 70-130 <br /> Siuioiwie uua-Irifluormoluene 304 300 101 70-130 <br /> LCS(IJ08002-BS3) Prepared&Analyzed 10-Oct-01 <br /> Benzene 183 050 ug/l 200 91 5 70-130 <br /> 1 ulucne 1 9 4 050 200 970 70-130 <br /> I the ihtniuu 203 0 50 200 102 70-130 <br /> X%Imes(total) 607 050 600 101 70-130 <br /> Surrogate o a a-Trifluorololuene 301 <br /> 300 100 70-130 • <br /> Matrix Spike(IJ08002-MSI) Source W110138-07 Prepared 08-Oct-01 Analyzed 10-Oct-01 <br /> Benzene 18 6 050 ug/l 200 ND 930 70-130 <br /> Toluene 196 050 200 ND 980 70-130 <br /> Lthylbenzene 201 0 50 200 ND 100 70-130 <br /> Xylenes(total) 603 050 600 ND 100 70-130 <br /> .Surrogate a a a Trii luorotoluene 303 300 101 70-130-- <br /> Matrix <br /> 0-130—Matrix Spike Dup (IJ08002-MSD1) Source W110138-07 Prepared 08-Oct-01 Analyzed 10-Oct-OI <br /> Rtniuu 191 0 50 ug/l 200 1, 95 5 70-130 ---i-6-5 20 <br /> 1 AUL11k 200 0 50 200 ND 100 70-130 202 20 <br /> 1 ihs lhuvtnt 208 050 200 ND 104 70-130 342 20 <br /> �s luu.((01e1) 62 7 050 600 ND 104 70-130 390 20 <br /> Sierrukuu it u u Iri(luorwoluene 30 -, 300 102 70-130 <br /> Sequoia Analytical - Walnut Creek The results to this report apply to the samples analyzed to accordance with the chi <br /> custody document This analytical report must be reproduced in its en <br /> Page 6 of 10 <br />