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a 680 Chesapeake Drive Redwood Cir 1 94063 (650)364-9600 FAX(650)364-9233 <br /> ' 1 <br /> Se uoia 404 N.Wiget Lane Walnut Cree. 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 /> 455 McDowell Blvd.North,Ste.D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Analytical ',551 Industrial Road San Carlos,CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> Pinnacle/IT Project: Arco <br /> 2201 Broadway Suite 101 Project Number: Arco#6080 Reported: <br /> Oakland CA,94612 Project Manager: Joel Coffman 27-Sep-99 16:20 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical - Walnut Creek <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> SPC 1,2,3,4(W909505-01)Soil Sampled: 24-Sep-99 14:10 Received:24-Sep-99 16:25 <br /> Purgeable Hydrocarbons ND 1.0 mg/kg 20 9I27007 27-Sep-99 27-Sep-99 DHS LUFT <br /> Benzene ND 0.0050 <br /> Toluene ND 0.0050 " <br /> Ethylbenzene ND 0.0050 <br /> Xylenes(total) ND 0.0050 <br /> Methyl tert-butyl ether ND 0.050 <br /> Sun•ogate:a,a,a-Trifluorotoluene 98.3% 40-140 " <br /> SPfM(W909505-02)Soil Sampled:24-Sep-99 14:20 Received: 24-Sep-99 16:25 A-01,S-04 <br /> Purgeable Hydrocarbons 99 10 mg/kg 200 9127007 27-Sep-99 27-Sep-99 DHS LUFT <br /> Benzene ND 0.050 <br /> Toluene ND 0.050 <br /> Ethylbenzene 0.053 0.050 <br /> Xylenes(total) 0.090 0.050 <br /> Methyl tert-butyl ether ND 0.50 <br /> Surrogate:a,a,a-Trifluorotoluene 157% 40-140 " <br /> Sequoia Analytical-Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must he reproduced in i is entirety. <br /> Dimple S larma,Project Manager Page 2 of 6 <br />