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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 /> 1455 Analytical 1551 IndDowailRohdd North Ste D San(uma Carlos CA 94070 41 11 (65) 232 9600 FAX(694954 (707) 792 1865 FAX 00)232 967)792 12 <br /> Gettler Rvan Lie. -Dublin Project Tosco <br /> 6747 Sierra Court Suite J Project Number Tosco#6981 Reported <br /> Dublin CA,94568 Project Manager Stege Carter 04-0cJ-99 09 27 <br /> Total Purgeable Hydrocarbons (C6-C12) and BTEX in Air by DHS LUFT - Quality Control <br /> Sequoia Analytical - Walnut Creek <br /> Reporting Spike SDurl,e %REC RPD <br /> Analyte Result Limit Units LeN el Result %REC Lit-nits RPD Limit Notes <br /> B,itc.h 91211112 Pe epat ed 21-Sep-99 Utitng EPA 5030B jP/T] <br /> LCS(9I2I012-BS3) <br /> Bonzene 394 0 010 mg`rn'Air 400 985 70-130 <br /> toluene 346 0 010 400 865 70 130 <br /> Ftltylhenzene 366 0 010 4 00 91 5 70 130 <br /> lV lenee(total) 119 0 010 120 992 70 130 <br /> Sunagate n o a Difluototolneiie 5 72 600 953 70-130 <br /> LCS Dup (91211112-BSDI) <br /> Benzene 1 99 0 010 mghn'Air 200 995 70 130 8 92 20 <br /> Toluene 176 0 010 200 880 70 130 828 20 <br /> Cihylbenzene 1 97 0 010 2 00 985 70 130 13 0 20 <br /> \Vlenec(total) 6 18 0 010 600 103 70-130 949 20 <br /> gate a a a-Ti tnuor otoluene 354 600 923 70-130 <br /> , quota Analytical- Walnut Creek The mwits in dit s report apply to the srnuple s cmali-ed i n crmrdance u uh the chain of <br /> custody document This analytrcal report must be reproducedin its entirety <br /> rjme Fegley, Project Maw& <br /> � Page 7 of 8 <br />