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Sequoia 819Stno54 <br /> Sacramento,,CA CA 9568 34 <br /> (916)921-9600 <br /> OIOD <br /> • Analytical www <br /> ,vww sequo�atalu mm <br /> Gettler-Ryan-Rancho Cordova Project Former Unocal 0187,Stockton,CA S211681 <br /> 3140 Gold Camp Dr,Ste 170 Project Number NIA Reported <br /> Rancho Cordova CA,95670 Project Manager Geoffrey D Rtsse 12/13/02 20 19 <br /> Total Purgeable Hydrocarbon,BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical-Sacramento <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> U-10 5211681-01 Water Sampled 11/21/02 07 02 Received 11/21/02 14 25 <br /> Purgeable Hydrocarbons ND 50 ug/1 1 2120085 12/05/02 12/05/02 DHS LUFr <br /> Benzene ND 050 " <br /> Toluene ND 050 <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 <br /> Methyl tert-butyl ether ND 2 5 " <br /> Surrogate a a,a-Tnfluorotoluene 107% 60-140 <br /> NP-2-22 S211681-02 Water Sampled 11/21/02 07 14 Received 11/21/02 14 25 <br /> Purgeable Hydrocarbons ND 50 ug/I l 2120085 12/05/02 12105/02 DHS LUFT <br /> Benzene ND 050 <br /> Toluene ND 050 <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether ND 25 „ <br /> urrogate a,a,a-Tri luorotoluene III% 60-140 " <br /> NP-2-60(S211681-03)Water Sampled 11/21/020725 Received I1/21/02 14 25 _ - <br /> Purgeable Hydrocarbons 3700 1200 ug/I 25 2120085 12/05/02 12/05/02 DHS LUFT <br /> Benzene 1700 12 <br /> Toluene 33 12 <br /> Ethylbenzene 35 12 " Q-28 <br /> Xylenes(total) 84 12 <br /> Methyl tert-butyl ether ND 62 " <br /> Surrogate a aa-Trtfluorotoluene 114% 60-140 " <br /> Sequoia Analytical- Sacramento The results in this report apply to the samples analyred to accordance with the chain of <br /> custody document Unless otherwise stated results are reported on a wet weight blasts <br /> This analytical report must be reproduced to its entirety <br /> Page 3 of 9 <br />