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Sequoia 404 N Wlget Lane <br /> Walnut Creek, CA 94598 <br /> (925) 988-9600 <br /> 4wr Analytical FAX(925) 988-9673 <br /> 0 <br /> Gettler Ryan,Inc -Dublin Project Tosco <br /> 6747 Sierra Court Suite J Project Number Tosco 4 6981 Reported <br /> Dublin CA,94568- - — Project Manager--Dcanna L—Harding - - l 0-Fete-00 I 100 <br /> Total Purgeable Hydrocarbons (C6-Cl2), 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 OB03002: Prepared 03-Feb-00 Using EPA 5030B (P/TJ <br /> Blank(OB03002-BLKI) <br /> Purgeable Hydrocarbons ND 50 USA <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether ND 25 " <br /> Sup rogate a a a-Tref Iuorotoluene 353 300 118 70430 <br /> LCS(OB03002-BSI) <br /> Benzene 203 050 ugfl 200 101 70-130 <br /> Toluene 202 050 200 101 70-130 <br /> Ethylbenzene 206 050 200 103 70-130 <br /> Xylenes(total) 609 050 600 102 70-130 <br /> Surrogate a a a-Trtfluorotoluene 307 300 101 70-130 <br /> Matrix Spike(OB03002-MSI) Source W001654-09 <br /> Benzene 228 050 ug/l 200 ND 114 70-130 <br /> Toluene - 238 050 200 16 111 70-130 <br /> Ethylbenzene 230 050 200 ND 113 70-130 <br /> Xylenes(total) 704 050 600 22 114 70-130 <br /> Surrogate a a a Trrfluorotoluene 305 " 300 101 70.130 <br /> Matrix Spike Dup(OB03002-M_SDI) Source W001654-09 <br /> Benzene 229 050 ugA 200 ND 114 70-130 0 438 20 <br /> Toluene 239 050 200 16 111 70-130 0 419 20 <br /> Ethylbenzene 231 050 200 ND 116 70-130 0 434 20 <br /> Xylenes(total) 713 050 600 22 115 70-130 127 20 <br /> Surrogate a,aa-Trifluoiotoluene 319 300 106 70-130 <br /> Sequoia Analytical- Walnut Creek The i esuks in t rs report apply to he samples analyzed m accoidance with the charn of <br /> document This anab tical report must be re produced in tis en <br /> Alan B Keinp,Laboratory Director Page 15 of 20 <br />