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A <br /> Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N Wlget Lane Walnut Creek CA 94598 (92S)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 11WO Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> i <br /> Gettler-Ryan- Sac Project Tosco l l 193,Stockton,CA Sampled 12/29/98 <br /> 3164 Gold Camp Dr,Ste 240 Project Number 140205 03 Received 12/29/93 <br /> Rancho Cordova,CA 95670 Project Manager Todd Del Frate ---Reported 1/5-6199 <br /> Total Purgeable Hydrocarbons(C6-C12), BTEX and MTBE by DHS LUFT/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Motes* <br /> Batch. 9010047 Date Prepared 115199 Extraction Method. EPA 5030B(NleOW <br /> Blank 9010047-BI.K1 <br /> Purgeable Hydrocarbons 115/99 ND mg/kg 1 00 <br /> Benzene ND 000500 <br /> Toluene ND 000500 <br /> Ethylbenzene ND 000500 <br /> Xylenes(total) ND 000500 <br /> Methvl tert-butyl ether ND 00500 <br /> Surrogate aaa-Trifhtoi otoluene 0200 0 190 600-140 95 0 <br /> ILLS 9010047-BSI <br /> Benzene 1/5/99 0200 0 196 mg/kg 70 0-130 980 <br /> Toluene 0200 0 198 700-130 99 0 <br /> Ethylbenzene 0200 0200 700-130 100 <br /> WIes(total) 0 600 0 586 700-130 97 7 <br /> tert-butvl ether 0200 0 179 700-130 89 5 <br /> Surrogate a a a-Tris luorotoluene 0200 0 187 600-140 93 5 <br /> Matrix Spike 9010047-MSI 5901008-09 <br /> Benzene 1/5/99 0200 ND 0 161 mg/kg 600-140 805 <br /> Toluene 0200 ND 0 167 600-140 835 <br /> Ethylbenzene 0200 ND 0 167 600-140 835 <br /> Xylenes(total) 0 600 ND 0 501 600-140 835 <br /> Methyl tert-butyl ether 0200 ND 0 154 600-140 770 <br /> Surrogate a a a-Trifluorotoluene 0200 0 182 600-140 910 <br /> Matrix Spike Dun 9010047-MSDI 590008-09 <br /> Benzene 1/5/99 0200 ND 0 163 mg/kg 600-140 815 25 0 1 23 <br /> Toluene 0200 ND 0 161 600-140 805 25 0 366 <br /> Ethylbenzene 0200 ND 0 168 600-140 840 25 0 0 597 <br /> Xylenes(total) " 0 600 ND 0 502 600-140 83 7 25 0 0 239 <br /> Methyl tert-butyl ether 0200 ND 0 160 600-140 800 25 0 382 <br /> Surrogate a a a-Trifluorotoluene 0200 0 177 600-140 885 <br /> Sequoia Analytical -Sacramento *Refer to end of report for text of notes and definitions <br /> a2 <br /> _� ! �! <br /> Linda C Schneider, Laboratory Director Page 3 of 4 <br />