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404 N Wtget lane <br /> IDSequoia Walnut Creek CA 94598 <br /> (925)988-9600 <br /> FAX <br /> OF Analytical (92S}988-9673 <br /> vwvw sequolalabs corn <br /> Gettler Ryan,Inc -Dublin Project Chevron <br /> 6747 Sierra Court Suite J Project Number Chevron#9-9840 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 06-Jun-01 08 21 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical - Walnut Creek <br /> Reporting <br /> Analyte Result Liriut Units Dilution Batch Prepared Analyzed Method Notes <br /> TB-LB(W105418-01)Water Sampled 17-May-01 00 00 Received 18-May-01 19 20 <br /> Purgeable Hydrocarbons ND 50 ug/1 1 1$29003 29-May-01 29-May-01 EPA <br /> 8ot5M/8020 <br /> Benzene <br /> ND 0 50 <br /> Toluene ND 0 50 " <br /> Ethylbenzene ND 0 50 <br /> Xylenes(total) ND 0 50 <br /> Mcthyl tert-butyl ether ND 2 5 <br /> Surrogate a,a,a-TnJluorotoluene 104% 70-130 " <br /> MW-1 (W105418-02)Water Sampled 17-May-01 18 37 Received 18-May-01 19 20 <br /> Purgeable Hydrocarbons 92 50 ug/I I IE29003 29-May-01 29-May-01 EPA P-01 <br /> 8015M/8020 <br /> Benzene 2 0 0 50 " " " CC-3 <br /> Toluene 0 64 0 50W <br /> benzene 0 68 050 " <br /> es(total) ND 050 <br /> Methyl tert-butyl ether 380 2 5 " CC-3 <br /> Surrogate a a a-Tnfluorotoluene 119 % 70-130 " <br /> MW-2(W105418-03)Water Sampled 17-May-01 18 03 Received 18-May-01 19 20 <br /> Purgeable Hydrocarbons ND 50 ug/l 1 IE29003 29-May-01 29-May-01 EPA <br /> 8015M/8020 <br /> Benzene 7 1 0 50 " CC-3,CF-01 <br /> Toluene 2 1 0 50 " CF-01 <br /> Ethylbenzene ND 0 50 <br /> Xylenes(total) ND 030 <br /> Methyl tent-butyl ether 39 2 5 CC-3 <br /> Surrogate a,a a-Trifluorotoluene 947% 70-130 " <br /> is Analytical- Walnut Creek The results m this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analyhcal report must be reproduced in its entirety <br /> Page 2 of 12 <br />