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SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue • Suite LM • Concord, California 94520 <br /> (510) 686-9600 • FAX (510) 686-9689 <br /> Kaprealtan Engineering, Inc Client Project ID Unocal#5421,7303 Pacific Ave,Stockton Sampled Nov 10, 1992 <br /> 2401 Stanwell Drive, Suite 400 Sample Descript Soil, EB3-(5) Received Nov 11, 1992 <br /> Concord, CA 94520 Analysis Method EPA 5030/8010 Analyzed Nov 17, 1992 <br /> Attention Mardo Kaprealian, P E Lab Number 211-0484 Reported Nov 25, 1992 <br /> HALOGENATED VOLATILE ORGANICS (EPA 8010) <br /> Analyte Detection Limit Sample Results <br /> Ng/kg Ng/k9 <br /> Bro modichloro methane 50 N D <br /> Bromoform 50 N D <br /> Bromomethane 10 N D <br /> Carbon tetrachloride 50 N D <br /> Chlorobenzene 60 N D <br /> Chloroethane 10 N D <br /> 2-Chloroethylvinyl ether 10 N D <br /> Chloroform 50 N D <br /> Chloromethane 10 N D <br /> Dibromochloromethane 50 N D <br /> 1,2-Dichlorobenzene so N D <br /> 1,3-Dichlorobenzene 50 N D <br /> 1,4-Dichlorobenzene 50 N D <br /> 1,1-Dichloroethane 50 N D <br /> 1,2-Dichloroethane 50 N D <br /> 1,1-Dichloroethene 50 N D <br /> cis-1,2-Dichloroethene 50 N D <br /> trans-1,2-Dichloroethene 50 N D <br /> 1,2-Dichloropropane 50 N D <br /> cis-1,3-Dichloropropene 50 N D <br /> trans-1,3-Dichloropropene 50 N D <br /> Methylene chloride 50 N D <br /> 1,1,2,2-Te■ytr/�achloro8ethane 50 N D <br /> kd6 eno....a.a...a...a................... ................. SJO ataiata...a.Z.at N....a...a.a.a.a.a.. <br /> so <br /> 1,1,1- ric oroet ane 50 <br /> 1,1,2-Trichloroethane 50 N D <br /> Trichloroethene so N D <br /> Trichlorofluoromethane 50 N D <br /> Vinyl chloride 10 N D <br /> Analytes reported as N D were not present above the stated limit of detection <br />.SECU A ANALYTICAL <br /> co A hieffo <br /> Project Manager 2110460 KEI <18> <br />