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Sequoia 819 Sinker Ave Ste 8 <br /> Sacramento,CA 95814 <br /> (916)921 9600 <br /> ► Analytical FAX(9)6)9210100 <br /> www sequoietabs com <br /> er-Ryan-Dublin Project Former Unocal 5098,Stockton,CA 5302592 <br /> Sierra Court,Ste J Project Number N/A Reported <br /> ubhn CA,94568 Project]Manager Deanna L 'Harding 03/10/03 17 17 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical - Sacramento <br /> Reponeng <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> DW-14A(5302592-16)Water Sampled 02/18/03 17 20 Received 02/24/0315 30 <br /> $thylbenzene ND 050 ug/l 1 3020415 02/28/03 02/28/03 EPA 8260B <br /> xachlorobutadiene ND 1 0 <br /> opropylbenzene ND 050 " <br /> -7sopropyltoluene ND 050 <br /> Methylene chloride ND 1 0 " <br /> ethyl tert-butyl ether ND 050 " <br /> aphthalene ND 1 0 <br /> n-Propylbenzene ND 050 <br /> U1 'enc ND 050 <br /> " " <br /> 1,l,2-Tetrachloroethane ND 050 <br /> , ,2,2-Tetrachloroethane ND 1 0 " <br /> Tetrachloroethene ND 050 " <br /> Ulu-TrichIGTobenzene <br /> ene ND 050 <br /> ND 050 <br /> 1,2,4-Tnchlorobenzene ND 050 <br /> rlchiorocthane ND 050 <br /> nchloroethane ND 050 <br /> rtChioroethene ND 050 " <br /> chlorofluoromethane ND 0 50 <br /> ,3-Trtchloropropane ND 10 <br /> k,4-Tnmethylbenzene <br /> ND 050 " <br /> 1,3,5-Trlmethylbenzene ND 050 <br /> Inyl chloride ND 050 <br /> lines(total) ND 050 <br /> Surrogate Dtbromo uoromethane 100/ 70-1 <br /> g .fl 30 .. ., ., <br /> rrogate 1,2-DCA44 95% 70-130 <br /> rrogate Toluene-d8 114% 70-130 <br /> arrogate 4-BFB 106% 70-130 <br /> N+ <br /> S&a Analytical- Sacramento The results to this report apply to the samples analjned in accordance with the chain of <br /> custody document Unless otherwise stated t esults are reported on a wet weight basis <br /> This analytical report must be i ep+oduced to its entirety <br /> Page 57 of 126 <br />