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s � y � � 680 Chesapeake Dr1ve Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> y+ i•i 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> r a 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> k„^ a lytical 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Blaine Technical Services,Inc Project Shell Oil Co Sampled 1/14/99 <br /> 1680 Rogers Ave Project Number 341 East Matti-Ripon/P990114-Y3 Received 1119/99 <br /> San Jose,CA 95112 -- --— - Project Mana er Fran Thie _ Reported 3/15/99_ - <br /> _ Total Petroleum Hydrocarbons as Gasoline and BTEX by EPA 8015NU8020MIQuality Control <br /> Sequoia Analytical-Petaluma <br /> Date Spike Sample QC Reporting Linut Recov RPD RPD <br /> lAnalyte_ Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 9010393 Date Prepared 1/22/99 Extraction Method EPA 5030 waters <br />=Blank 9010393=BbK1 <br /> Gasoline 1/22/99 ND ug/1 Soo <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 2 00 <br /> Surrogate a,a a-Tnfluorotoluene 300 378 650-135 126 <br /> Surrogate 4-Bromofluorobenzene 300 277 650-135 923 <br /> LCS 9010393-BS1 <br /> Benzene 1/22/99 100 107 ug/I 650-135 107 <br /> Toluene 100 107 650-135 107 <br /> Ethylbenzene 100 103 650-135 103 <br /> Xylenes(total) 300 323 650-135 108 <br /> Surrogate a,a,a-Trifluorotoluene 300 365 650-135 122 <br /> Matrix Spike 9010393-MSI P901180-01 <br /> Benzene 1/22/99 100 209 101 ug/1 650-135 98 9 <br /> Toluene 100 ND 990 650-135 99 0 <br /> Ethylbenzene 100 ND 95 1 65 0-135 951 <br /> Xylenes(total) 300 0 673 295 650-135 981 <br /> Surrogate a a a-Trifluorotoluene 300 351 650-135 117 <br /> Matrix Spike Dup. 9010393-MSD1 P901180-01 <br /> Benzene 1/22/99 100 209 112 ug/l 650-135 110 200 106 <br /> Toluene 100 ND 111 = 650-135 111 200 114 <br /> "Ethylbenzene 100 ND 107 650-135 107 200 118 <br /> Xylenes(total) 300 0 673 330 650-135 110 200 114 _ <br /> Surrogate a,a,a-Trifluorotoluene 300 375 650-135 125 <br /> Sequoia Analytical-Petaluma *Refer to end of report for text of notes and definitions <br /> MAR 1-5 1999 <br /> 4 € <br /> Page 4 of 6 <br />