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680 Chesapeake Drive Redwood C[ CA 94063 650 364-9600 FAX(650)364-9233 <br /> Sequoia 404 N ftet lane ry <br /> S Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Oettler-kYan -Dublin Client Project Ib Unocal 8S#5098, Stockton Sampled Dec 22, 1998 <br /> 6747 Sierra Court, Suite J Sample Descnpt Water, MW-10 Received Dec 23, 1998 <br /> Dublin, CA 94568 Analysis Method EPA 5030/8010 Analyzed Dec 31, 1998 <br /> Attention Deanna Harding Lab Number 812-2065 Reported Jan 13, 1999 <br /> HALOGENATED VOLATILE ORGANICS (EPA 8010) <br /> Analyte Detection Limit Sample Results <br /> yg/L Ng/L <br /> Bromodichloromethane 050 N D <br /> Bromoform 050 N D <br /> Bromomethane 10 N D <br /> Carbon tetrachloride 050 N D <br /> Chlorobenzene 050 N D <br /> Chloroethane 1 0 N D <br /> Chloroform 050 N D <br /> Chloromethane 1 0 N D <br /> Dibrornochloromethane 050 N D <br /> 1,3-Dichlorobenzene 050 N D <br /> 1,4-Dichlorobenzene 050 N D <br /> 1,2-Dichlorobenzene 0 50 N D <br /> 1,1-Dichloroethane 050 N D <br /> 1,2-Dichloroethane 0 50 N D <br /> 1*ans-11,2-Dichloroethene <br /> i-Dlchloroethene 050 N D <br /> s-1,2-Dichloroethene 050 N D <br /> 050 ND <br /> 1,2-Dichloropropane 050 N D <br /> cls-1,3-Dlchloropropene 050 N D <br /> trans-1,3-Dichloropropene 050 ND <br /> Methylene chloride 50 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 0 50 N D <br /> Trichlorofluoromethane 050 N D <br /> Vinyl chloride 1 0 N D <br /> Surrogates Control Limit % % Recovery <br /> Dibromodlfluoromethane 50 150 83 <br /> 4-Bromofluorobenzene 50 150 75 <br /> Analytes reporter!as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL, #1271 <br /> UAAUU,t, <br /> J lanne Fegley <br /> ro]ect Manager <br /> 8122064 GET <3> <br />