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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wlget 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 /> Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 1551 Industrial Road San Carlos,CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> Blaine Tech Services Project Shell(2) Sampled 2/23/99 <br /> 1680 Rogers Avenue Project Number Shell 2494 Fremont St,990223-Y4 Received 2/26/99 <br /> San Jose,CA 95112 Project Manager Fran Thie Reported 3/19/99 <br /> z Total"Pntrgeable$ydrocarbons 13 TE7X and/MTBE-hy�DHS LU)ETJQ ality Control„ <br /> aSe [IO[l_,..,., aA]r alyf1Cak-§S n Carlos <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits IN Limit % Notes* <br /> Batch 9030016 Date Prepared 3/3199 Extraction Method EPA 5030B IP/T1 <br /> Blank 9030016-BLK1 <br /> Purgeable Hydrocarbons as Gasoline 3/3/99 ND ug/l 50 0 <br /> Benzene " ND 0 500 <br /> Toluene " ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tert-butyl ether ND " 500 <br /> Surrogate a a,a-Trifluoro toluene to 100 944 to 700-130 944 <br /> LCS 9030016-BSI <br /> Benzene 313/99 100 10 2 ug/1 700-130 102 <br /> Toluene 100 979 1. 700-130 979 <br /> Ethylbenzene 100 100 11700-130 100 <br /> Xylcnes(total) 300 299 " 700-130 997 <br /> Surrogate a a a-Triffuorotoluene 100 911 If 700-130 911 <br /> Matrix Spike 9030016-MSI <br /> Benzene 3/3/99 100 907 ug/1 600-140 907 <br /> Toluene " 100 11 1 600-140 111 <br /> Ethylbenzene " 100 10 2 600-140 102 <br /> Xylenes(total) 300 306 600-140 102 <br /> Surrogate a a a-Trifluoro toluene 100 907 700-130 907 <br /> Matrix Spike Dup 9030016-MSD1 <br /> Benzene 3/3199 l0 0 11 1 ug/l 600-140 Ill 250 201 <br /> Toluene " 100 112 600-140 112 25 0 0 90 <br /> Ethylbenzene " 100 103 600-140 103 250 0 98 <br /> Xylenes(total) " 300 309 600-140 103 250 098 <br />=Surrogate a a,a=Trtfluorotoluene " 10 0 869 70 0-130=86 9 <br /> Batch 9030038 Date Prepared 3110/99 Extraction Method EPA 50306 [P/T1 <br /> Blank 9030038-BLK1 <br /> Purgeable Hydrocarbons as Gasoline 3/10/99 ND ug/l 50 0 <br /> Benzene ItND 0 500 <br /> Toluene <br /> ND 0 500 <br /> - <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tert-butyl ether ND Soo <br /> Surrogate aaa-Trifluoe otoluene 100 885 11 700-130 885 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definer: <br /> Page 5 of 7 <br />