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680 Chesapeake Drive Redwood Cl' 194063 (650)3649600 FAX(650)3649233 <br /> S e qu o 1 a 404 N.Wiget Lane Walnut Cree, .94598 (925)988-9600 FAX(925)988-9673 <br /> 1 <br /> 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 4 4,,,D- 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 /> Pinnacle/IT Project: Arco <br /> 2201 Broadway Suite 101 Project Number: Arco#6080 Reported: <br /> Oakland CA,94612 Project Manager: Joel Coffman 28-Sep-99 12:07 <br /> Total Purgeable Hydrocarbons (C6-C12) and BTEX by DHS LUFT <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Anal}'red Method Notes <br /> ND4(W909267-01)Soil Sampled: 13-Sep-99 00:00 Received: 14-Sep-99 14:40 P-01,S-01 <br /> Purgeable Hydrocarbons 3300 200 mg/kg 4000 9I20013 17-Sep-99 17-Sep-99 DHS LUFT <br /> Benzene ND 1.0 if " " " " " <br /> Toluene 26 1.0 <br /> Ethylbenzene 36 1.0 " <br /> Xylenes(total) 350 1.0 " <br /> Surrogate:a,a,a-Trifluorotoluene % 40-140 " <br /> SD4(W909267-02)Soil Sampled: 13-Sep-99 00:00 Received: 14-Sep-99 14:40 P-(11,S-II1 <br /> Purgeable Hydrocarbons 9800 500 mg/kg 10000 9I20013 17-Sep-99 17-Sep-99 DHS LUFT <br /> Benzene ND 2.5 " <br /> Toluene 52 2.5 " <br /> Ethylbenzene 78 2.5 <br /> Xylenes(total) 950 2.5 " <br /> Surrogate:a,a,a-Trifluorotoluene % 40-140 " <br /> ESW4(W909267-03)Soil Sampled: 13-Sep-99 00:00 Received: 14-Sep-99 14:40 <br /> Purgeable Hydrocarbons ND 1.0 mg/kg 20 9120013 17-Sep-99 17-Sep-99 DHS LUFT <br /> Benzene ND 0.0050 <br /> Toluene ND 0.0050 <br /> Ethylbenzene ND 0.0050 " <br /> Xylenes(total) 0.026 0.0050 " <br /> Surrogate:a,a,a-Trifluorotoluene 98.3% 40-140 " <br /> SPL4(W909267-04)Soil Sampled: 13-Sep-99 00:00 Received: 14-Sep-9914:40 <br /> Purgeable Hydrocarbons ND 1.0 mg/kg 20 9I20013 17-Sep-99 17-Sep-99 DHS LUFT <br /> Benzene ND 0.0050 it 11 11 " " " <br /> Toluene ND 0.0050 " <br /> Ethylbenzene ND 0.0050 <br /> Xylenes(total) 0.014 0.0050 <br /> Surrogate:a,a,a-Trifluorotoluene 93.3% 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 analydcal report must be reproduced in its entirety. <br /> Y <br /> Dimp a Sharma,Protect Manager Page 2 of 1 l <br />