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1 <br /> a <br /> Gettler-Ryan/Geostrategtes(1) Project Tosco(1) <br /> 6747 Sierra Court,Suite J_ Project Number Unocal SS#08671 Repo <br /> rted <br /> Dublin CA,94568 Project Manager Deanna Harding 02/15/01 13 12 <br /> Total Purgeable Hydrocarbons (C6-C12),BTEX and MTBE by DHS`LUFT - Quality Control <br /> Sequoia Analytical- San Carlos <br /> Rqxx=s spae Soimx %REC RPD <br /> Analyte Reset Lunt Umts Level Result %REC lints RPD lit Notes <br /> Batch 10200334-EPA 5030B <br /> Blank(1020034-BLKI) Prepared&Analyzed 02/12/01 <br /> Purgeable Hydrocarbons as Gasoline ND 500 u9/1 <br /> Benzene ND 0 500 " <br /> Toluene ND 0 500 " <br /> Etbylbenzene ND 0 500 " <br /> Xylenes(total) ND 0 500 " <br /> Methyl tent-butyl ether ND 500 " <br /> Surrogate a,a,a-Trifluorotoluene 87S N 100 875 70-130 <br /> Blank(1020034-BLK2) Prepared&Analyzed 02/13/01 <br /> Purgeable Hydrocarbons as Gasoline ND 500 118/1 _ <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 " <br /> Ethylbenzene ND 0 500 " <br /> Xylenes(total) ND 0 500 <br /> Methyl tert butyl ether ND 500 " <br /> T Surrogate a,a,a-TYzflrsorotoluene 10 7 T �" - 100--- 107-=70-130 _ <br /> LCS(1020034-BSU - -=- - --- - --- ---- -- --- - —Prepared&Analyzed 02112/01_ <br /> Benzene 957 0 500 ug/l too 957 70-130 <br /> Toluene - -- - 944 � -= 0 500 - "=_--=10 0- --- -�=94 4--=70-130 - - - - <br /> Etbylbenzme 964 0 500 100 964 70-130 <br /> Xylenes(total) 290 0 500 300 967 70-130 <br /> Surrogate a,a,a-TrJf:uorotoluene 905 100 905 70-130 <br /> LCS(1020034-BS2) Prepared&Analyzed 02/12/01 _ <br /> Purgeable Hydrocarbons as Gasoline 295 Soo ug/l 250 118 70-130 <br /> Surrogate a,a,a-T'r{fluorotoluene 914 " 100 914 70-130 <br /> Sequoia Analytical-San Carlos The results in this report apply to the samples analyzes'in accordance with the c.naers <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 6 of 13 <br />