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Sequoia 1551 Industria!Road <br /> San Carlos,CA 907"111 <br /> (650)232-9600 <br /> Analytical FAX(650)z32-9612 <br /> www sequofalabs coin <br /> Geula-Ryan/Geostrategtes{1) ProleM Unocal(l) Sampled 9/29/00 <br /> 6747 Sierra Court,Suite J Project Number Forma Unocal SS#0123 Remved 9x19/00 <br /> Dublin,CA 94568 Project Manager Deanna Hard 10/18/00 <br /> Volatile Organic Compounds by EPA Method 8010B <br /> Sequoia Analytical-San Carlos <br /> Batch Date Date Surrogate Reportmg <br /> Anal Number Anal Limits Lvnut Result Units Notes' <br /> U-5 L009223-06 Water <br /> Freon 113 0100012 1014100 10/4100 100 ND u9/1 <br /> Bromodrehloromethane " 0 500 ND " <br /> Bromoform n n n 0 500 ND " <br /> Bromomethane " " " 100 ND „ <br /> Carbon tetrachloride " " 0 500 ND " <br /> Chlorobenzene " " 0 500 ND " <br /> Chloroethane " " " 100 ND " <br /> 2-Chloroethylvtnyl ether n '^ Soo ND " <br /> Chloroform n rt n 0 500 ND " <br /> Chloromethane " " " 100 ND " <br /> Dibromochloromethane rt rt n 0 500 ND " <br /> 1,3-Dichlorobenzene n n n 0 500 ND " <br /> 1,4-Dichlorobenzene n n w n - �` 0 500 ND n w <br /> 1,2-Duhlorobenzene " " 0 500 ND " <br /> l,l-Dtchloroedtane n n n 0500 ND " <br /> 1,2-Dtchloroethme n n n 0 500 ND " <br /> 1,1-DidilorOethene n n n 0500 ND " <br /> ds-1,2-Dichloroethene n " 0 500 1.73 " <br /> trans-1,2-Dtchlotoethene " 0 500 ND-- -" <br /> - -1,2-Dichloropropane --__ __ n "__ 0 500 ND--! <br /> �cus-1,3-Dtdtloropropene _-- 0500 —ND-----" - <br /> trans-1,3-Dichloropropene n n n 0 500 ND " <br /> r Methylene chloride -_---- - -5 00 <br /> 1,1,2,2-Tetracltlorcedtane " 0 500 ND " <br /> Tetraeldoroethene n rt n 0 500 5.70 " <br /> 1,1,1-Tndtloroed me ;" 0500 ND " <br /> 1,1,2-Tnchloroethane " " 0 500 ND " <br /> Trichloroethene " " 0 500 0.647 " <br /> Trichlorofluoromethane " 0 500 ND " <br /> Vinyl chloride - " 0 500' ND " <br /> Surrogate I-Chloro-1;fluorobenzene " " 700-130 838 % « <br /> ti <br /> Sequoia Analytical-San Carlos *Refer to end ofreport for text of now and definirro <br /> Page 8 of 17 <br />