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Sequoia 680 Chesapeake Drive Redwood GM CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510) 988 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> QuChstone Development Client Project ID Chevron #9-2033 Sampled Sep 9, 1996 <br /> P 0 Box 2554 Sample Descript Sod, UOSP A Received Sep 9, 1996 <br /> Santa Rosa, CA 95405 Analysis Method EPA 5030/8010 Analyzed Sep 10, 1996 <br /> Attention Jeff Monroe Lab Number 609-0441 Reported Sep 12, 1996 <br /> QC Batch Number GCO91096801007A <br /> Instrument ID HP-7 <br /> HALOGENATED VOLATILE ORGANICS (EPA 8010) <br /> Analyte Detection Limit Sample Results <br /> pg/kg Ng/kg <br /> Bromodichloromethane 25 N D <br /> Bromoform 25 N D <br /> Bromomethane 50 N D <br /> Carbon tetrachloride 25 N D <br /> Chlorobenzene 25 N D <br /> Chloroethane 25 N D <br /> 2-Chloroethylvinyl ether 50 N D <br /> Chloroform 25 N D <br /> Chloromethane 50 N D <br /> Dibromochloromethane 25 N D <br /> 1,2-Dichlorobenzene 25 N D <br /> 1,3-Dichlorobenzene 25 N D <br /> 4Dichlorobenzene 25 N D <br /> Dichloroethane 25 N D <br /> 1,2-Dlchloroethane 25 N D <br /> 1,1-Dichloroethene 25 N D <br /> cls-1,2-Dichloroethene 25 N D <br /> trans-1,2-Dlchloroethene 25 N D <br /> 1,2-Dichloropropane 25 N D <br /> cls-1,3-Dichloropropene 25 N D <br /> trans-1,3-Dlchloropropene 25 N D <br /> Methylene chloride 250 N D <br /> 1,1,2,2-Tetrachloroethane 25 N D <br /> Tetrachloroethene 25 72 <br /> 1,1,1-Trichloroethane 25 <br /> 1,1,2-Trichloroethane 25 N D <br /> Trichloroethene 25 N D <br /> Trichlorofluoromethane 25 N D <br /> Vinyl chloride 50 N D <br /> Surrogates Control Limit % % Recovery <br /> DibromodifIuoro methane 50 150 89 <br /> 4-Bromofiuorobe nzene 50 150 94 <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 /> SEQUOIA ANALYTICAL, #1271 <br /> *A&� 0 - <br /> Melissa A Brewer <br /> Client Services Representative <br /> 6090441 TOU <4> <br />