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404 N Wiget Lane <br /> Sequoia Walnut Creek CA 94598 <br /> (925)988-9600 <br /> FAX(925)988-%73 <br /> Analytical www sequolalabs com <br /> Settleryan,Inc -Dublin Project Tosco <br /> ,747 Sierra Court Suite 7 Project Number Tosco#4409 Reported <br /> )ubhn CA,94568 Project Manager Deanna L Harding 06-Feb-01 17 2I <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical _Walnut Creek <br /> Reporting <br /> nalyte Result Lumt Chits Dilution Batch Prepared Analyzed Method Notes <br /> W-7(W101522-08)Water Sampled 22-Jan-01 14 28 Received 23-Ian-01 16 00 <br /> �anol ND 500 ugn 1 1 A24014 24-Jan-01 24-Jan-01 EPA 8260B <br /> -Butyl alcohol ND 50 " <br /> ethyl tert-butyl ether 16 20 ^ <br /> i-isopropyl ether ND 20 <br /> hyl tent-butyl ether ND 20 " <br /> t-Amyl methyl ether ND 20 <br /> 2-Dichloroethane ND 20 <br /> hylene dnbrormde ND 20 <br /> rrogate Dibromafluoromethane 111 % 50-IS0 „ <br /> ,rrogate 1,2 Dtchloroethane-d4 962% 50-150 " <br /> 0 <br /> )eq*Analyhcal-Wahiut Creek The results in tins report apply to the samples analyzed In accordance with the chain of <br /> custody documew This analytical report must be reproduced in its entirely <br /> Page 5 of 12 <br />