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Sequoia 404 N. CLane <br /> Walnut® t Creek,,CAA 94598 <br /> (925)988-9600 <br /> Analytical wFAX(925)988-9673 <br /> ww.sequoialabs.com <br /> Gettler Ryan,Inc.-Dublin Project: Tosco <br /> 6747 Sierra Court Suite 7 Project Number: Tosco# 11195 Reported: <br /> Dublin CA, 94568 Project Manager: Doug Lee 13-Mar-02 08:19 <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 /> B-1-9(W202395-01)Soil Sampled: 25-Feb-02 00:00 Received:25-Feb-02 17.50 <br /> Purgeable Hydrocarbons(C6-C12) ND 1.0 mg/kg 20 2CO1003 01-Mar-02 01-Mar-02 EPA 8015/8021 <br /> Beozeue ND 0.0050 " <br /> Toluene ND 0.0050 " <br /> Ethylbenzene ND 0A050 " <br /> Xylenes(total) ND 0.0050 " <br /> Methyl tent-butyl ether(MTBE) ND 0.050 " <br /> Surrogate' a,a,a-Trifluorotoluene 95% " 40-140 11 " " <br /> B-2-9(W20Z395-02)Soil Sampled:25-Feb-02 00:00 Received:25-Feb-02 17:50 <br /> Purgeable Hydrocarbons(C6-C12) ND 1.0 mg/kg 20 2CO1003 01-Mar-02 01-Mar-02 EPA 8 0 1 518 02 1 <br /> Benzene ND 0.0050 " <br /> Toluene ND 0.0050 " <br /> Ethylbenzene ND 0.0050 " <br /> ylenes(total) ND 0.0050 <br /> _ethyl tent-butyl ether(MTBE) ND 0.050 " <br /> Surrogate: a,a,a-Tris luorotoluene 87% 40-140 " <br /> B-3-9(W202395-03)Soil Sampled: 25-Feb-02 00:00 Received:25-Feb-02 17:50 <br /> Purgeable Hydrocarbons(C6-C12) ND LO mg/kg 20 2CO1003 01-Mar-02 01-Mar-02 EPA 8015/8021 <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(MTBE) ND 0.050 " <br /> Surrogate:a,a,a-Trrfhrorotohrene 98% 40-140 " <br /> i <br /> >:'quoia Analytical- Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain of <br /> cuslody document. This analytical report must he reproduced in its entirety. <br /> 2 of 8 <br />