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equoia 404 N.,CA lane <br /> ,`J Walnut Creek,CA 94598 <br /> (925)988-9600 <br /> Analytical wFAX(925) 73 <br /> wwsequoialabsxalabs.com <br /> isms, <br /> Gettler Ryan,Inc. -Dublin Project: Tosco <br /> 6747 Sierra Court Suite.l Project Number: Tosco# 11195 Reported: <br /> Dublin CA,94568 Project Manager: Doug Lee 1 1-Mar-02 07:42 <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 (W202365-01)Water Sampled:25-Feb-02 00:00 Received: 25-Feb-02 17:50 <br /> Purgeable Hydrocarbons(C6-C12) ND 50 ugll 1 21328002 28-Feb-02 28-Feb-02 EPA <br /> 8015M/8021 <br /> Benzene ND 0.50 " <br /> Toluene ND 0.50 " <br /> Ethylbenzene ND 0.50 " <br /> Xylenes(total) ND 0.50 " <br /> Methyl tert-butyl ether(MTBE) 130 2.5 " <br /> Surrogate:a,a,a-Trifluorotoluene 121 % 70-130 <br /> B-2(W202365-02)Water Sampled: 25-Feb-02 00:00 Received:25-Feb-0217:50 <br /> Purgeable Hydrocarbons(C6-C12) ND 50 ugll 1 21328002 06-Mar-02 06-Mar-02 EPA <br /> 8015W8021 <br /> Benzene ND 0.50 " <br /> _T luene ND 0.50 " <br /> :;-Z.Lylbenzene ND 0.50 " <br /> Xylenes(total) ND 0.50 " <br /> Surrogate. a,a,a-Trifluorotoluene 87% 70-130 <br /> B-2(W202365-02REI)Water Sampled:25-Feb-02 00:00 Received:25-Feb-02 17:50 <br /> Methyl tert-butyl ether(MTBE) 6100 500 ug/l 200 2B28002 28-Feb-02 28-Feb-02 EPA <br /> 8015M18021 <br /> Surrogate: a,a,a-Trifluorotoluene 105% 70-130 " <br /> B-3(W202365-03)Water Sampled:25-Feb-02 00:00 Received:25-Feb-02 17:50 <br /> Purgeable Hydrocarbons(C6-C 12) ND 50 ug/l 1 21328002 28-Feb-02 28-Feb-02 EPA <br /> 8015M18021 <br /> Benzene ND 0.50 " <br /> 'toluene ND 0.50 " <br /> Ethylbenzene ND 0.50 " <br /> Xylenes(total) ND 0.50 " <br /> Methyl tert-butyl ether(MTBE) ND 2,5 " <br /> Surrogate: a,a,a-fri luorotoluene 118% 70-130 " <br /> 1uoia 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 its entirety. <br /> 2of10 <br />