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819 Striker Ave Ste 8 <br /> 4INAnalytical <br /> Sequoia sact�m(916 92 95834 <br /> 900(916)921-9600 ww, quc)i sabs.co 0 <br /> www,seyuoiakabs.wm <br /> Gettler-Ryan-Dublin Project: Former Unocal 0187,Stockton,CA S309067 <br /> 6747 Sierra Court,Ste.J Project Number: N/A Reported: <br /> Dublin CA,94568 Project Manager: Deanna L.Harding 09/15/03 16:39 <br /> Gasoline (2-Methylpentane to 1,2,4-Trimethylbenzene) and BTEX by EPA 8015M and 8021B <br /> Sequoia Analytical - Sacramento <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> U-12(5309067-13)Water Sampled:08/28/03 17:37 Received: 09/02/03 16:20 <br /> Purgeable Hydrocarbons 850 50 ug/l 1 3090052 09/04/03 09/05/03 EPA 8021B <br /> Benzene 36 0.50 " <br /> Toluene 2.8 0.50 " <br /> Ethylbenzene 1.3 0.50 " <br /> Xylenes(total) 5.5 0.50 <br /> Methyl tert-butyl ether 17 2.0 <br /> Surrogate:a,a,a-Trifluorotoluene 96% 60-140 <br /> U-13(S309067-14)Water Sampled:08/28/03 18:06 Received:09/02/03 16:20 <br /> Purgeable Hydrocarbons ND 50 ug/l 1 3090052 09/04/03 09/04/03 EPA 8021B <br /> Benzene 1.8 0.50 " " QR-04 <br /> Toluene ND 0.50 " <br /> Ethylbenzene ND 0.50 <br /> Xytotal) ND 0.50 " <br /> Me rt-butyl ether ND 2.0 <br /> Surrogate:a,a,4-Trifluorotoluene 84% 60-140 <br /> U-14(S309067-15)Water Sampled:08/28/03 10:46 Received:09/02/03 16:20 <br /> Purgeable Hydrocarbons ND 50 ug/l 1 3090052 09/04/03 09/04/03 EPA 9021B <br /> Benzene ND 0.50 " <br /> Toluene ND 0.50 <br /> Ethylbenzene ND 0.50 " <br /> Xylenes(total) ND 0.50 <br /> Methyl tert-butyl ether ND 2.0 " <br /> Surrogate:a,a,a-Trifluorotoluene 72% 60-140 <br /> Se a 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 hasis_ <br /> This analytical report must he reproduced in its entirety. <br /> s <br /> Page 8 of 29 <br /> 1 <br />