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Sequoia 680 Chesapeake Drive Redwood Clty CA 94063 (650)364-9600 FAX(650)364-9133 <br /> 404 N "get 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 /> Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 1 551 Industrial Road San Carlos,CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> alneTechServices Protect Shell(1) Sampled 4115199 <br /> 1 b8Q Rogers Avenue Protect Number Shell 2575 Country Club Blvd,Stockton Received 4116199 <br /> San Jose,CA 95112 Protect Manager Fran Thie Reported 516/99 <br /> Total Purgeable Hydrocarbons(C&C`12),BTEX and MTBE by DHS LUFT/Quality Control <br /> Sequoia Analytical-Sag Carlos <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit IN Notes* <br /> Blank(continued) 9040122-BLKI <br /> Methyl tert-butyl ether 4/24/99 ND ug/1 500 <br /> Surrogate a a a-Trifluorotoluene If10 0 850 if700-130 85 0 <br /> I <br /> LCS 9040122-BSI <br /> Benzene 4/24/99 100 929 ug/1 700-130 92 9 <br /> Toluene 100 932 700-130 93 2 <br /> Ethylbenzene 100 936 700-130 93 6 <br /> Xylenes(total) 300 28 2 700-130 94 0 <br /> Surrogate a,a,a-Trzuorotoluene 100 852 700-130 852 <br /> Matrix Spike 9040122-MSI L904290-32 <br /> Benzene 4/24/99 l0 0 0 912 103 ug/l 600-140 93 9 <br /> Toluene " 100 ND 955 600-140 955 <br /> Ethylbenzene 100 ND 9 87 600-140 987 <br /> lens(total) 300 132 302 600-140 96.3 <br /> rogate a a,a-Trifluorotoluene 100 982 700-130 982 <br /> Matrix Spike Du p 9040122-MSD1 L904290-32 <br /> Benzene 4/24199 100 0 912 103 ug/1 600-140 93 9 25 0 0 <br /> Toluene 10 0 ND 9 94 600-140 994 25 0 4 00 <br /> Ethylbenzene 100 ND 9 65 600-140 965 25 0 225 <br /> Xylenes(total) 300 1 32 300 600-140 956 25 0 0 730 <br /> Surrogate a a a-Trifluorotoluene 100 889 700-130 889 <br /> Batch 9040134 Date Prepared 4/27/99 Extraction Method EPA 5030B (PITT <br /> Blank 9040134-BLK1 <br /> Purgeable Hydrocarbons as Gasoline 4/27199 ND ug/1 500 <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 5 00 <br /> Surrogate a,a a-Tnfluorotoluene to100 7 88 700-130 78 8 <br /> LCS 9040134-BSI <br /> Purgeable Hydrocarbons as Gasoline 4127199 250 251 ug/1 700-130 100 <br /> Surrogate a,a,a-Trifluorotoluene r100 8 99 700-130 899 <br /> Matrix_Spike 9040134-MSI <br /> Purgeable Hydrocarbons as Gasoline 4/27/99 250 217 ug/1 600-140 <br /> Surrogate a a,a-Tnfluorotoluene Yf100 118 it700-130 118 <br /> uoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> page 26 of 32 <br />