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" 680 Chesapeake Drive Redwood City,CA 94063 (650)364-9600 FAX(650)3649233 <br /> Sequoia 404 N WISet lane Walnut Geek 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 /> �1� 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 (65o)232-9600 FAX(650)232-9612 <br /> ttler Ryan,Inc -Dublin Project Unocal <br /> ,6747 Sierra Court Suite 1 Project Number Former Unocal#0123 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 04-Oct-99 10 17 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result Lunit Units Dilution Batch Prepared Analyzed Method Notes <br /> U-3(W909217-04)Water Sampled 09-Sep-99 10 55 Received 10-Sep-99 14 55 <br /> Purgeable Hydrocarbons ND 50 ugA 1 9I15013 15-Sep-99 15-Sep-99 DHS LUFT <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether ND 25 " <br /> Surrogate a,a,a-Tri lrtorotohtene 933% 70-130 " <br /> U4 (W909217-05)Water Sampled 09-Sep-99 13 48 Received 10-Sep-99 14 55 P-01 <br /> Purgeable Hydrocarbons 900 500 ug/l to 9115013 15-Sep-99 15-Sap-99 DHS LUFT <br /> Benzene 29 50 <br /> Toluene 88 50 " <br /> Ethylbenzene ND 5 0 " <br /> X,,lenes (total) 78 50 " <br /> Meth-1 tort-butvl ether ND 25 <br /> Tt ogate a a a-Trifhtototohiene 103 % -0-130 <br /> 5 (W909217-06)Water Sampled 09-Stp 99 11 20 Reserved 10-Sep-99 1.1 55 <br /> Purgeable FI�droL irbon, ND 50 t1=11 1 9115013 15-Sep-99 15-Sep 99 DHS LUFT <br /> Benzene ND 050 <br /> Toluene ND 050 ' <br /> Ethylbenzene ND 030 " <br /> XyltnL%(total) ND 0 50 " <br /> Methr I tort-but,,l ether ND 2 5 " <br /> Sertrogate a a a-Dijiuorotolueue 933% -0-130 <br /> Sequoia Analytical- Walnut Creek The rerullr in tins report c>pply to the uanples rmrrly.ed in crcordance with the churn of <br /> 0 custody document This analyncal report must be reproduced in rix entirety <br /> U r I eg Cy, Yroicc t Ma ger Page 3 of 16 <br />