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SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue a Suite LM a Concord, California 94520 <br />. (415) 686-9600 a FAX (415) 686-9689 <br /> Kaprealian Engineering, Inc Client Project ID Unocal, 7303 Pacific Ave , Stockton Sampled Jun 26, 1991 <br /> P O Box 996 Sample Descript Water, MW1 Received Jun 26, 1991 <br /> Benicia, CA 94510 Analysis Method EPA 5030/8010 Analyzed Jul 3, 1991 <br /> Attention Mardo Kaprealian, P E Lab Number 106-0740 EF Reported Jul 11, 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-Dichloroberlizeno...... ........ 2.0 y. 5.8 <br /> 1 3-Dichlorobenzene 20 N D <br /> 0-Dichlorobenzene 20 N D <br /> , -Dichloroethane 050 N D <br /> 1,2-Dichloroethane 050 N D <br /> 1,1-Dichloroethene 10 N D <br /> cis-1,2-Dichloroethene 10 N D <br /> trans-1,2-Dichloroethene 10 N D <br /> 1,2-Dichloropropane 050 N D <br /> cis-1,3-Dichloropropene 50 N D <br /> trans-1,3-Dichloropropene 50 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 /> 06UOIA ANALYTICAL <br /> C�C UV <br /> Belinda C Vega <br /> Laboratory Director 1060740 KEI <8> <br />