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Sequoia 404 N Wlget lane <br /> Walnut Creek CA"§4598 <br /> m%ff Analytical (925988-9600 <br /> FAX(925))988-9673 <br /> Gettler Ryan/Geostrategies-Dublin Project Unocal <br /> 6747 Steird Court Suite J Project Number Former Unocal Station 2859 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 03-Sep-99 10 15 <br /> - Y Total Purgeable Hydrocarbons (C&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 /> NP-1 (W908424-04)Water Sampled 19-Aug-99 09 43 Received 20-Aug-99 17 00 P-0I <br /> Purgeable.Hydrocarbons 1600 250 ug/l 5 91-131021 30-Aug 99 30-Aug-99 DHS LUFT <br /> Benzene 38 2 5 " <br /> Toluene 17 2 5 " <br /> Ethylbenzene 8 5 2 5 <br /> Xylenes (total) 63 2 5 <br /> Methyl tert-butyl ether 16 13 " <br /> Surrogate a a a-Trifluorotoluene 113 % 70-130 " <br /> MW-2(W908424-05)Water Sampled 19-Aug-99 10 48 Received 20-Aug-99 17 00 P-01 <br /> Purgeable HN drotarbons 83000 10000 ug/l 200 9H31021 30-Aug 99 30-Aug-99 DHS LUFT <br /> Benzine I800 100 <br /> -- Toluene - 16000 100 <br /> Ethylbenzene 3600 100 " <br /> X}Is-nes (total) 17000 100 <br /> Nlethvl tert-butyl ether ND 500 <br /> Surrogate a a a-Tnfluorololuene 100 % '70-130 " <br /> r hIW-10(W9084244)6)Water Sampled 19-Aug-99 10 54 Recened 20-Aug-99 17 00 P-0I <br /> Purgeable H)drncarbons 130000 20000 ug/1 400 9101010 31-Aug 99 31-Aug-99 DHS LUFT <br /> Benzene - 9700 200 " <br /> Toluene 56000 200 " <br /> Elh\lhlnLlne 4600 200 ^ " <br /> X)IIRI! (total) 2701111 200 <br /> Methyl tert-butyl ether ND 1000 <br /> Surrogate a a a-Tri luaotoluene 867% 70-130 " <br /> Sequoia Analytical-Walnut Creek The resalrs in thrs report apply to the samples awalyzed in accordance with the churn of <br /> custody document This analytical report must be reproduced in its enorrry <br /> I it AA LIA <br /> r i <br /> u arils e- n reject Manager a I Page 3 of 6 <br />