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( 819 Smlwr Ave Ste 8 <br /> Sequoia�uoia Sacramento CA 95834 <br /> 4D �1 (916)921-9600 <br /> . ' Analytical www FAx(916)9AS2 1 ca 0 <br /> sequoealabs cam <br /> Gettler-Ryan-Rancho Cordova Project Former Unocal 2859,Stockton,CA S211680 <br /> 3140 Gold Camp Dr,Ste 170 Project Number N/A Repot <br /> Rancho Cordova CA,95670 Project Manager Geoffrey D Rtsse 12/13/02 20 12 <br /> Total Purgeable Hydrocarbon,BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical- Sacramento <br /> Reporting <br /> pytc Regult Lmut Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-2(5211680-01)Water Sampled-11/21/02 09.14 Received 11/21/0214 25 <br /> Purgeable Hydrocarbons 11000 5000 ug/i 100 2120095 12/03/02 12/03/02 DHS LUFT <br /> Benzene 840 50 n n n n n n Q-28 <br /> Toluene 710 50 " <br /> Ethylbenzene 880 50 " <br /> Xylenes(total) 3900 SO " <br /> Methyl tett-butyl ether ND 250 n n n n n n <br /> Surrogate a a,a-Trifluorotoluene 97% 60-140 " <br /> MW-10 S211680-02 Water Sampled 13/21/02 09 21 Received 11/21/02 14 25 <br /> Purgeable Hydrocarbons 67000 10000 ugA 200 2120095 12/03/02 12/03/02 DHS LUF'1' <br /> Benzene 4600 100 n n n Q-28 <br /> Toluene 18000 100 <br /> Ethylbenzene 2300 100 <br /> Xylenes(total) 14000 100 <br /> Methyl tert-butyl ether ND 500 <br /> Iurrogate ga,a-Tri luorotoluene 1% 60-140 S-LIM <br /> MW-10(S211680-02RE1)Water Sampled 11/21/02 09 21 Received 11/21/0214 25 HT-R5 <br /> Purgeable Hydrocarbons 67000 10000 ugA 200 2120095 12/13/02 12/13/02 DHS LUFT <br /> Benzene 3800 100 " <br /> Toluene 13000 100 <br /> Ethylbenzene 2100 100 " <br /> Xylenes(total) 13000 100 " <br /> Methyl tert-butyl ether ND 500 " <br /> Surrogate a a a-Trtfluorotoluene 94% 60-140 " <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> • custody document Unless otherwise stated,results are reported on a wet weight bases <br /> This analytical report must be reproduced in its entirety <br /> Page 3 of 8 <br />