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819 Striker Avenue Suite 8 <br /> Sequoia Sacramento CA 95834 <br /> (916)9Z 1-%W—N <br /> FAX(916)921-0100 <br /> 4VAnalytical www sequoiaiabs corn <br /> Gettler-Ryan-Rancho Cordova Project Former Unocal 2859, Stockton,CA S210536 <br /> 3140 Gold Camp Dr,Ste 170 Prosect Number N/A Reported <br /> Rancho Cordova CA,95670 Project Manager Geoffrey D Rtsse 11/08/02 18 35 <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 /> MW-2(S210536-01)Water Sampled 10/21/02 10 02 Received 10/21/02 15 10 <br /> Purgeable Hydrocarbons 48000 20000 ug/1 400 2100387 10/30/02 10/30/02 DHS LUFT <br /> Benzene 2000 200 " " " " " " <br /> Toluene 8300 200 It " <br /> Ethylbenzene 3100 200 " <br /> Xylenes(total) 10000 200 " <br /> Methyl tert-butyl ether ND 1000 " <br /> Surrogate a a,a-Trifluorotoluene 94% 60-140 " <br /> MW-10(5210536-02)Water Sampled 10/21/02 09 52 Received 10/21/02 15 10 <br /> Purgeable Hydrocarbons 120000 50000 ugA 1000 2100387 10/30/02 10/30/02 DHS LUFT <br /> Benzene 6700 500 11 11 " IF <br /> Toluene 24000 500 <br /> Ethylbenzene 3000 500 " <br /> Wes(total) 22000 500 <br /> Y111 <br /> tert-butyl ether ND 2500 <br /> Surrogate a a a-Trifluorotoluene 95% 60-140 " <br /> MW-11 (5210536-03)Water Sampled 10/21/02 09 46 Received 10/21/02 15 10 <br /> Purgeable Hydrocarbons 30000 10000 ug/l 200 2100387 10/30/02 10/30/02 DHS LUFT <br /> Benzene 570 100 " <br /> Toluene 180 100 " <br /> Ethylbenzene 1700 100 IF " <br /> Xylenes(total) 8100 100 " 1. " " <br /> Methyl tert-butyl ether ND 500 IF I. " <br /> Surrogate a,a,a-Trifluorotoluene 95% 60-140 IF " <br /> 11 <br /> o1a Analytical- Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced m its entirety <br /> Page 3 of 8 <br />