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�r r <br /> 404 N Wiget Lane <br /> 4 equoia Walnut Creek CA 94598 <br /> (9Z5)988-9600 <br /> ' -_ _ - - - -_ ,- -- - - -' -- - __-- FAX{925}988-9673 --- <br /> = <br /> Analytical - - - -_ <br /> Mettler Ryan,Inc -Dublin Project Unocal <br /> 6747 Sterna Court Suite J Project Number Unocal SS#5886 Reported _ <br /> �Dublm CA;94568 ---- — —'Project Manager Deanna 1 Harding 14-Sep-99 17 49 <br /> Volatile Organic Compounds by EPA Method 8260A <br /> Sequoia Analytical -Walnut Creek <br /> Repotting <br /> Analyte Restilt Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-101(W908373 Z0)Water Sampled 16-Aug-99 14 05 Received 18-Aug-99 14 00 <br /> Ethanol ND 500 Ug/1 1 9181005 30-Aug-99 30-dug-99 EPA 8260A <br /> tert-Butyl alcohol ND 100 <br /> Methyl tert-butyl ether 71 20 " <br /> Di-isopropyl ether ND 20 ^ <br /> Ethyl ter[butyl ether ND 20 " ^ <br /> tort-Amyl methyl ether ND 20 <br /> Surrogate Dibronrofluoromethane 100% 50-150 ^ ^ <br /> Surrogate 12-Dichloroethane-f4 100% 50-150 ^ <br /> hIW-10D (W908373-21)Water Sampled 16-Aug-99 13 16 Recen.ed 18-Aug-99 14 00 <br /> Ethanol ND 500 uoil 1 9H31005 30-Aug-99 30-aug-99 EP-\8260A <br /> tett-Sut�l dkohol ND 100 <br /> hlLth,I tort-hutnl ether 11 2 0 <br /> Di-t�oprop%i :thcr ND 2 0 <br /> Lthvl terl-hut,�l ether ND 20 <br /> tart-Amyl rneth,�1 ether ND 20 <br /> Srotogaie Drhtonroflrrorontethatre 106% 50-150 <br /> Surrogate 1?-Drcldoroethatre{14 104 % 50-150 <br /> Sequoia Analytical- Walnut Creek The resullr in da s report apply to the tanpley rmuh.ed In arcor&mce wuh rhe chnn of <br /> euvody document Thry am4trcrrl report marl he reproducedmrts enfrrviv <br /> u t L 1�g v 'rolCut ,in.tg <br /> Pa6t- 12 ..r 16 <br />