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SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue • Suite LM • Concord, California 94520 <br /> tip (415) 686-9600 0 FAX (415) 686-9689 <br /> Kaprealian Engineering, Inc Client Project ID Unocal,7303 Pacific Ave,Stockton Sampled ------ <br /> P O Box 996 Sample Descript DI Blank Received ------ <br /> Benicia, <br /> ----- <br /> Benicia, CA 94510 Analysis Method EPA 5030/8010 Analyzed Mar 27, 1991 <br /> Attention Mardo Kaprealian, P E Lab Number ------ Reported Apr 10, 1991 <br /> HALOGENATED VOLATILE ORGANICS (EPA 8010) <br /> Analyte Detection Limit Sample Results <br /> pg/L Ng/L <br /> Bromodichloromethane 10 N D <br /> Bromoform 10 N D <br /> Bromomethane 10 N D <br /> Carbon tetrachloride 10 N D <br /> Chlorobenzene 10 N D <br /> Chloroethane 50 N D <br /> 2-Chloroethylvinyl ether 10 N D <br /> Chloroform 050 N D <br /> Chloromethane 050 N D <br /> Dibromochloromethane 050 N D <br /> 1,2-Dichlorobenzene 20 N D <br /> 1,3-Dichlorobenzene 20 N D <br /> 404-Dichlorobenzene 20 N D <br /> ,1-Dichloroethane 050 N D <br /> 1,2-Dichloroethane 050 N D <br /> 1,1-Dichloroethene 10 N D <br /> cls-1,2-Dichloroethene 10 N D <br /> trans-l,2-Dichloroethene 10 N D <br /> 1,2-Dichloropropane 050 N D <br /> cis-1,3-Dichloropropene 50 N D <br /> trans-l,3-Dichloropropene so N D <br /> Methylene chloride 20 N D <br /> 1,1,2,2-Tetrachloroethane 050 N D <br /> Tetrachloroethene 050 N D <br /> 1,1,1-Trichloroethane 050 N D <br /> 1,1,2-Trichloroethane 050 N D <br /> Trichloroethene 050 N D <br /> Trichlorofluoromethane 10 N D <br /> Vinyl chloride 20 N D <br /> Analytes reported as N D were not present above the stated limit of detection <br /> IDEQUOIA ANALYTICAL <br /> Belinda C Vega <br /> Laboratory Director 1030899 KEI <11 <br />