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ane <br /> Sequoia 404 , CA A l598 <br /> 4 Walnut Creek, G 94598 <br /> 4 Analytical (925 988-9603 <br /> 4D FAX(925)) 988-9673 <br /> Gettler Ryan,Inc -Dublin Project Unocal _ <br /> 6747 Sierra Court Suite J Project Number Unocal#0187 Reported <br /> Dublin CA,94568 1 Project Manager Deanna L Harding 09-Mdr-00 10 44 <br /> Total Purgeable Hydrocarbons (C6-C12),BTEX and MTBE by DHS LUFT- Quality Control <br /> Sequoia Analytical -Walnut Creek <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Lurut Units Level Result %REC Linits RPD Lunit Notes <br /> Batch 00O2002-EPA 5030B[PIT] - <br /> Matrix Spike(00O2002-MSI) Source W003001-02RE I Prepared&Analyzed 02-Mar-00 <br /> Benzene 21 4 0 50 ug/1 200 ND 107 70-130 <br /> Toluene 21 4 0 50 200 ND 107 70-130 <br /> Ethylbenzene 219 0 50 200 ND 109 70-130 <br /> Xylenes(total) 663 0 50 600 ND 111 70-130 <br /> Surrogate q q a-Tnfluorotoluene 309 300 103 70-130 <br /> Matrix Spike Dup (00O2002-MSD1) Source W003001-02REIPrepared&Analyzed 02-Mar-00 <br /> Benzene 209 0 50 ugll 200 ND 104 70.130 236 20 <br /> Toluene 205 0 50 " 200 ND 103 70-130 430 20 <br /> Ethylbenzene 208 050 200 ND 104 70-130 515 20 <br /> Xylenes(total) 631 050 600 ND 105 70-130 4 95 20 <br /> Surrogate a,a a-Tnfluonotoluene _ 310 300 103 70-130 <br /> Batch 00O2003-EPA 5030B [P!T] <br /> Blank(00O2003-BLKI) Prepared&Analyzed 02-Mar-00 <br /> Purgeable hydrocarbons ND 50 ugn — <br /> BenZen.C 1'1D 5w " <br />--- Toluene - - ---------v --- ND---- 0 50 " ------ — -----— — - -- —- —_�... <br /> Ethylbenzenc— <br /> Xylenes(total) ND 050 " <br /> Methyl text-butyl ether -- - - - —ND-=ND - - 25- --fSurrogate ata;a-Tnfluoroioluene 301 300 100 70-130 <br /> LCS(00O2003-BSI) Prepared&Analyzed 02-Mar-00 <br /> Benzene 206 0 50 ug/1 200 103 70430 <br /> Toluene 208 0 50 200 104 70-130 <br /> Ethylbenzene 208 0 50 200 104 70-130 <br /> Xylenes(total) 600 0 50 600 100 70-130 <br /> Surrogate ga a-Tnrfluorotoluene 288 " 300 960 70-130 <br /> Sequoia Analytical-Walnut Creek The results in tins report apply to the samples analyzed to accordance with the chain o <br /> custody document This analytical report must be reproduced in its entzreqp' <br /> Page 18 of 22 <br />