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Sequoia 680 Chesapeake Drive Redwood City,CA 94063(650)364-9600 FAX(650)364-9233 <br /> 15) 404 N.Wiget Lane Walnut Creek.CA 94598 (925).988=9600 FAX(925)988-9673 <br /> frill,) Analytical 819 Striker Avenue.Suite 8 Sacramento„CA 95834 • (916Y921-9600 FAX(916)9Z1-0100 <br /> 1455 McDowell Blvd.North.Ste.D Petaluma,CA 94954 �- i! (707);79V-1865 FAX(707)792-0342 <br /> e e an::- Du lin n ent»Pr::::: t ::::»>::»>:>:::<:::>::><:::>::::>:;:::::>:>:>>::> ::: <br /> >:::<:. .. <br /> y olec b. osco #11195, Lathrop t:;�;_ ,.� •_ :•Sampled: Apr 9, 1999:::: <br /> 6747 Sierra Court, Suite J Sample Matrix: Water ­`Received: Apr 12, 1999 <br /> Dublin, CA 94568 Analysis Method: EPA 5030/8015 Mod./8020 ;,; Reported: Apr 20, 1999.. <br /> Attention: Doug Lee First Sample #: 904-0867 <br /> :........ ........................ <br /> :;:.. <br /> QC Batch Number: GC041499 <br /> 802005A <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX j MTBE <br /> Reporting Sample <br /> Analyte Limit I.D. <br /> pg/L 904-0867 <br /> CC-1 <br /> Purgeable <br /> Hydrocarbons 50 N.D. <br /> Benzene 0.50 5.3 <br /> Toluene 0.50 N.D. <br /> Ethyl Benzene 0:50 N.D. <br /> Total Xylenes 0.50 N.D. <br /> MTBE 2.5 6,300 <br /> Chromatogram Pattern: <br /> Quality Control Data <br /> Report Limit Multiplication Factor: 10 <br /> Date Analyzed: 4/14/99 <br /> Instrument Identification: HP-5 <br /> Surrogate Recovery, %: 88 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard. <br /> Analytes reported as N.D.were not detected above the stated reporting limit. <br /> SEQUOIA ANALYTICAL, #1271 <br /> anne Fegley Illy <br /> Project Manager <br /> 9040867.GET <1> <br /> t <br />