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404 N Wlget Lane <br /> Sequoia WalnutC(92 )9W96 8 <br /> (925)988-9600 <br /> FAX(925)988.9673 <br /> Analyticalwww sequolalabs corn <br /> Gettler Ryan,Inc -Dublin Project Unocal <br /> 6747 Sierra Court Suite 7 Project Number Unocal 4 0187 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 14-Mar-01 10 19 <br /> Total Petroleum Hydrocarbons as Gasoline and BTEX by EPA 8015M/8020M <br /> Sequoia Analytical - Petaluma <br /> Reporting <br /> Analyte Result Lieut Units Dilution Batch Prepared Analyzed Method Notes <br /> U-9 (W102669-10)Water Sampled 27-Feb-010936 Received 28-Feb-01 16 50 <br /> Gasoline ND 500 ug/I 1 1030227 09-Mer-01 09-Mar-01 EPA <br /> 8015M/8020M <br /> Benzene ND 0 500 " <br /> Toluene ND 0 500 ^ " <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 " <br /> Methyl tert-butyl ether ND 250 " <br /> Surrogate a,a,a-Tnfluorotoluene .993% 65-135 " <br /> Surrogate 4-Bromofluorobenzene 977% 65-135 <br /> U-10(W102669-11)Water Sampled 27-Feb-01 1107 Received 28-Feb-01 16 50 <br /> Gasoh ne 334 500 ug/l 1 1030227 09-Mer-01 09-Mar-01 EPA <br /> 8015M/8020M <br /> Benzene 304 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene -- - - - - - -0852- - -0500--- <br /> Xylenes <br /> 0500---Xylenes(total) ND 0 500 <br /> Mcthyl tert-butyl ether ND 250 " <br /> Surrogate a,a,a-Tnfluorotoluene 101 % 65-135 " <br /> Surrogate 4 Bromofluorobenzene - --987-% -65-135 - <br /> U-11 (W102669-12)Water Sampled 27-Feb-01 10 16 Received 28-Feb-01 16 50 <br /> Gasoline ND 500 ug11 1 1030227 09-Mar-01 09-Mar-Ol EPA <br /> 8015MIS020M <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND - 0 500 <br /> Methyl tert-butyl ether ND 2 50 <br /> Surrogate a aa-Thfluorotoluene 997% 65-135 <br /> Surrogate 4-Bromofluorobenzene 993% 65-135 " <br /> Sequoia Analytical-Walnut Creek The results in this report apply to the samples analysed in accordance with the charm <br /> custody document_ Tins analytical report must be reproduced in its entire <br /> Page 17 of 32 <br /> ti�% <br />