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404 N Wlget Lane <br /> Sequoia Walnut Geek,CA 94$90 <br /> (925)988-9600 <br /> PAX(925)%8-%73 <br /> Analytical s� lala�stn <br /> Gettler Ryan,lnc -Dublin Project Tosca <br /> 6747 Sierra Court Suite J Project Number Tosco 4 11192 Reported <br /> Dublin CA,94568 Project Manager Doug Lee 18-Jan-01 07 35 <br /> Total Purgeable Hydrocarbons (C6-C12) and BTEX by DHS LUFT - Quality Control <br /> Sequoia Analytical - Walnut Creek <br /> Reporting Spike Source %REC RPD <br /> Analyte 'Result Lumt Units Level Result %REC Lmuts J RPD Limit Notes <br /> Batch 1A16004-EPA 5030B [PIT] <br /> Blank(1A16004-BLKI) r Prepared&Analyzed 15-Jan-01 i <br /> Purgeable Hydrocarbons ND 50 ugn <br /> 5 <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 v <br /> Xylencs(total) ND 050 " <br /> Surrogate a a a-Trrfluorotoluene 38 0 300 127 70-130 <br /> LCS(1A16004-BSI) Prepared&Analyzed 15-Jan-Ol <br /> Benzene 192 050 ug/l 200 960 70-130 <br /> e � <br /> Toluene 194 050 200 970 70-130 <br /> Ethylbenzene 19 0 0 50 20 0 950 70-130 <br /> , r <br /> Xylenes(total) 556 0 50 600 92 7 70-130 <br /> Surrogate a a a-Trt}luorotoluene 33 2 ' 300 111 -70-130 <br /> Matrix Spike(lA16004-MSI) Source W101090-02 Prepared&Analyzed 15-Jan-01 <br /> Benzene 1618, 0 50 ug/1 200 ND 840 70-130 <br /> Toluene q 168 050 200 ND 840 70-130 <br /> Ethylbenzene 183 0 50 , 200 093 868 70-130 <br /> Xylcnes(total) 513 050 600 ND 855 70-130 <br /> Surrogate aaa-Tnfluorotoluene 301 300 100 70.130 <br /> Matrix Spike Dnp (1A16004-MSDI) Source W101090-02 Prepared&Analyzed 15-Jan-01 <br /> Benzene 182 050 ug/l 200 ND 910 70-130 800 20 <br /> Toluene 181 0 50 200 ND 90 5 70-130 745 20 <br /> Ethylbenzene 187 050 200 093 889 70-130 2 16 20 <br /> Xylenes(total) 533 050 600 ND 888 70-130 3 82 20 <br /> Surrogate aa,a-Tnfluorvtoluene 301 300 100 70-130 <br /> R <br /> I <br /> Sequoia Analytical-Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain <br /> custody document.Tits analytical report must be reproduced in its entrr� <br /> Page 5 of 9 ' <br /> r <br />