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SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue • Suite LM • Concord, California 94520 <br /> (510) 686-9600 • FAX (510) 686-9689 <br /> realian Engineering, Inc Client Project ID Former Unocal#5098,5606 Pacific Ave Sampled Jun 28, 1993 <br /> 1 Stanwell Dr, Ste 400 Sample Descript Water, MW-11 Received Jun 28, 1993 <br /> Concord, CA 94520 Analysis Method EPA 5030/8010 Analyzed Jul 9, 1993 <br /> Attention Avo Avedessian Lab Number 306-1151 Reported Jul 14, 1993 <br /> HALOGENATED VOLATILE ORGANICS (EPA 8010) <br /> Analyte Detection Limit Sample Results <br /> Ng/L Ng/L <br /> Bromodichloromethane 50 N D <br /> Bromoform 50 N D <br /> Bromomethane 100 N D <br /> Carbon tetrachloride 50 N D <br /> Chlorobenzene 50 N D <br /> Chloroethane 100 N D <br /> 2-Chloroethylvinyl ether 100 N D <br /> Chloroform 50 N D <br /> Chloromethane 100 N D <br /> Dibromochloromethane 50 N D <br /> 1,3-Dichlorobenzene 50 N D <br /> 1,4-Dichlorobenzene 50 N D <br /> 1,2-Dichlorobenzene 50 N D <br /> 1,1-Dichloroethane 50 N D <br /> tcorcie ne' .— ..,,, o .,x,.,.,...,r...................�.�.� 340 <br /> is oroet ene 50 <br /> -1,2-Dichloraethene 50 N D <br /> trans-l,2-Dichloroethene 50 N D <br /> 1,2-Dichloropropane 50 N D <br /> cls-1,3-Dichloropropene 50 N D <br /> trans-l,3-Dichloropropene 50 N D <br /> Methylene chloride 500 N D <br /> 1,1,2,2-Tetrachloroethane 50 N D <br /> Tetrachloroethene 50 N D <br /> 1,1,1-Trichloroethane 50 N D <br /> 1,1,2-Trichloroethane 50 N D <br /> Trichloroethene 50 N D <br /> Trichlorofluoromethane 50 N D <br /> Vinyl chloride 100 N D <br /> Analytes reported as N D were not present above the stated limit of detection Because matrix effects and/or other factors <br /> required additional sample dilution,detection limits for this sample have been raised <br /> �©UOIA ANALYT CAL <br /> Ian r e <br /> Project`Manager <br /> 3061150 KE_I <3> <br />