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•i n�u <br /> Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget t.ane Walnut Creek CA 94598 (925)988-9600 FAX(92S)9a8-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> low 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 /> 0 I <br /> I <br /> ATC Associates,Inc Project ATC Projects Sampled 3/16/99 <br /> 1117 lone palm Ave,Suite B Project Number Farmer Property 62596 0001-01 Received 3/17/99 <br /> Modesto,CA 95351 Project Manager Jeanne Hornsey Reported 3126199 <br /> Total Purgeable Hydrocarbons(C6-C12)and BTEX by DHS LUFTIQuallty Control_ <br /> _ Sequoia Analytical-San Carlos <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> LCS(continued,) 9030083-BSI <br /> Ethylbenzene 3/19/99 100 104 ug/1 700-130 104 <br /> Xylenes(total) 300 311 " 700-130 104 <br /> Surrogate a a,a-Triuorotoluene 100 9 11 If600-140 91 1 <br /> Matrix Spike 9030083-MSI <br /> Benzene 3/19/99 10 0 181 ug/l 600-140 <br /> Toluene 10 0 101 600-140 <br /> Ethylbenzene 100 1 1 6 600-140 <br /> Xylenes(total) 300 545 600-140 <br /> Surrogate a a a-Trifluorotoluene 100 12 6 600-140 126 <br /> Matrix Spike Do 9030083-MSD1 <br /> Benzene 3/19199 100 178 ug/1 600-140 25 0 <br /> Toluene 100 9 86 600-140 25 0 <br /> ( ylbenzene 100 114 600-140 25 0 <br /> lenes(total) 300 536 60 0440 25 0 <br /> Surrogate a a a-Trifluorotoluene 100 118 600-140 118 <br /> Batch 9030115 Date Prepared 3/22199 Extraction Method EPA 5030B 1P/Tl <br /> Blank 9030115-BLKI <br /> Purgeable Hydrocarbons as Gasoline 3/22199 ND ug/l 500 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Surrogate aa a-Trnfluorotoluene 100 990 600-140 990 <br /> LCS 9030115-BSI <br /> Benzene 3/22/99 100 939 ug/I 700-130 93 9 <br /> Toluene 100 953 700-130 953 <br /> Ethylbenzene 100 9 63 700-130 963 <br /> Xylenes(total) 300 28 6 700-130 95 3 <br /> Surrogate a a,a-Trifluorotoluene 100 10 7 600-140 107 <br /> Matrix Spike 9030115-MSI L903162-01 <br /> Benzene 3122199 100 149 24 9 ug/l 600-140 100 <br /> Toluene 100 ND 921 600-140 92 1 <br /> Ethylbenzene 100 0 885 101 600-140 92 2 <br /> Xylenes(total} 30 0 ND 267 600-140 89 0 <br /> Surrogate a,a,a-Trifluorotoluene 10 0 131 600-140 131 3 <br /> AEk <br /> W,quoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 11 of 13 <br />