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1 Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> fiill� Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> ttler-Aly n -Oublln m Client Project 10 Unocal SS#0123,Tracy Sampled Marry 16, 1999 <br /> 47 Sierra Court, Suite J Sample Descript Water, U-4 Received Mar 17, 1999 <br /> Dublin, CA 94568 Analysis Method EPA 5030/8010 Analyzed Mar 29, 1999 <br /> Attention Deanna Harding Lab Number 903-1670 Reported Apr 2, 1999 <br /> HALOGENATED VOLATILE ORGANICS (EPA 8010) <br /> Analyte Detection Limit Sample Results <br /> pg/L jig/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 10 N D <br /> Chloroform 050 N D <br /> Chloromethane 10 N D <br /> Dibromochlcromethane 050 N D <br /> 1,3-Dichlorobenzene 050 N D <br /> 1,4-Dichlorobenzene 050 N D <br /> 1,2-Dichlorobenzene 050 N D <br /> 1,1-Dlchloroethane 050 N D <br /> 1,2-Dlchloroethane 050 N D <br /> 1,1-Dichloroethene 050 N D <br /> s-1,2- is oroet ene. .. 050 1 1 <br /> lvnns-1,2-Dichloroethene •• 050 1 1 <br /> --1,2-C)ichloropropane 050 <br /> cls-1,3-Dichloropropene 050 N D <br /> trans-1,3-Dichloropropene 050 N D <br /> [Methylene Chloride. .. 0 .. ... 15 <br /> 1,1,2,2-1 etrachloroethane 050 <br /> Tetrachloroethene , . . . . . 050 - - - - 5 1 <br /> 1,1,11-friChloroethane 050 <br /> NO <br /> 1,1,2-Trichloroethane 050 NO <br /> Trichloroethene 050 •• 0 80 <br /> Trichlorofluoromethane 050 <br /> Vinyl chloride 1 0 N D <br /> Surrogates Control Limit % % Recovery <br /> Dlbromodifluoromethane 50 150 105 <br /> 4-6 romofl uoro benzene 50 150 78 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL,#1271 <br /> tlaJnne Fegley <br /> ect Manager <br /> 9031666 GET <7> <br />