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404 N W Set Lane <br /> Walnut Creek CA 94598 <br /> Sequoia (925)988-9600 <br /> FAX(925)988-%73 <br /> Analytical '"'"'"�`'uo`asaa5`°r' <br /> Gettler Ryan,Inc -Dubhn Project Unocal <br /> 6747 Sierra Court Suite 7 Project Number Unocal#0187 Reported <br /> Dublin CA,94568 Project Manager Deanna L Har&ng 14-Mar-01 10 19 <br /> Total Petroleum Hydrocarbons as Gasoline and BTEX by EPA 8015M/8020M <br /> Sequoia Analytical - Petaluma <br /> Reportuig <br /> Analyte Result Lunt Units Dilution Batch Prepared Analyzed Method Notes <br /> U-12(W102669-13)Water Sampled 27-Feb-01 12 14 Received 28-Feb-01 16 50 <br /> Gasoline 634 500 ug/1 l 1030227 09-Mar-01 09-Mar-01 EPA <br /> 8015M/8020M <br /> Benzene 690 0 500 <br /> Toluene 136 0 500 QR-04 <br /> Ethylbenzene 2 15 0 500 " <br /> Xylenes(total) 151 0 500 " <br /> Methyl tent butyl ether ND 250 <br /> Surrogate a,a,a-Tnfluorotoluene 92 7% 65-135 " <br /> Surrogate 4-Bromofluorobenzene 977% 65-135 " <br /> U-13(W102669-14)Water Sampled 27-Feb-01 13 02 Received 28-Feb-01 16 50 <br /> Gasoline 2610 250 ug/1 5 1030227 09-Mar-01 09-Mar-01 EPA <br /> 8015M/8020M <br /> Benzene 883 250 " <br /> *1, en,,e 834 250 QR-o4 <br /> nzene 507 250s(total) 123 250 <br /> Methyl tert butyl ether ND 12 5 <br /> Surrogate a,a,a-Tnfluorotoluene 105% 65-135 " <br /> Surrogate 4 Bromofluorobenzene 993% 65-135 " <br /> U-14(Wi02669-15)Water Sampled 26-Feb-01 12 43 Received 28-Feb-01 16 50 <br /> Gasohne ND 50 0 ug/l 1 1030229 09-Mar-01 09-Mer-01 EPA <br /> 8015M/8020M <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0500 " <br /> Methyl tent butyl ether ND 250 <br /> Surrogate a,a,a-Tnfluorotoluene 973% 65-135 " <br /> Surrogate 4-Bromofluorobenzene 101 % 65-135 " <br /> Sola Analytical-Walnut Creek The results in flus report apply to the samples analyzed in accordance with the chain of <br /> custody document Tips analytical report must be reproduced to its entirety <br /> Page 18 of 32 <br />