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f Sequoia 81wnen ,CA 5834 <br /> '���'y Sacramento,CA 95834 <br /> (916)921-9600 <br /> FAX Analytical ww.se uoiala16) -4100 <br /> ww�v.sequoialabs.cam <br /> i <br /> Gettler-Ryan-Rancho Cordova Project: Former Unocal 0187,Stockton,CA S308456 <br /> 3140 Gold Camp Dr.,Ste. 170 Project Number: N/A Reported: <br /> Rancho Cordova CA,95670 Project Manager: Geoffrey D.Risse 09/08/03 15:29 <br /> Gasoline(2-Methylpentane to 1,2,4-Trimethylbenzene) and BTEX by EPA 8015M and 8021B <br /> Sequoia Analytical- Sacramento <br /> mfg <br /> Analyte Result Limit Unita Dilution Batch Prepared Analyzed Method Notes <br /> U-10(S308456-01)Water Sampled:08/22/03 07:06 Received:08/22/0313:41 <br /> Purgeable Hydrocarbons 700 50 ug/l 1 3080298 08/25/03 08/25/03 EPA 8015/8021 <br /> Benzene 6.7 0.50 " <br /> Toluene 4.7 0.50 " <br /> Ethylbenzene 8.5 0.50 <br /> Xylenes(total) 5.6 0.50 <br /> Methyl tert-butyl ether ND 2.0 ^ " <br /> Surrogate:a,a,a-Trifluorotoluene 122% 60-140 " <br /> NP-2-22(5308456-02)Water Sampled:08/22/03 07:15 Received:08122/0313:41 <br /> Purgeable Hydrocarbons 750 100 ug/1 2 3080298 08/25/03 08/25/03 EPA 8015/8021 <br /> Benzene 7.4 1.0 <br /> Toluene 5.2 1.0 " <br /> Ethylbenzene 9.4 1.0 <br /> Xylenes(total) 6.2 1.0 " <br /> Am&bAethvl tert-butyl ether ND 4.0 ^ <br /> urrogate:aa,a-Triuorotoluene 102% 60-140 <br /> NP-2-60(5308456-03)Water Sampled:08/22/03 07:20 Received:08/22/03 13:41 <br /> Purgeable Hydrocarbons 670 50 ug/I 1 3080298 08/25/03 08/26/03 EPA 8015/8021 <br /> Benzene 6.3 0.50 " " " <br /> Toluene 4.6 0.50 " <br /> Ethylbenzene 8.1 0.50 " <br /> Xylenes(total) 5.4 0.50 " <br /> Methyl tert-butyl ether ND 2.0 " <br /> Surrogate:a,a,a-Triuorololuene 108% 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 basis. <br /> This analytical report must be reproduced in its entirety. <br /> Page 3 of 9 <br />