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819 SU13cer Ave Ste 8 <br /> Sequoia Sacramento CA 95834 <br /> (916)921-9600 <br /> Analytical FAX(916)921-0100 <br /> www scquoialabs cmn <br /> ' Geological Technics,Inc Project-Cardoza 5412258 <br /> 1101 7th Street Project Number 662 2 Reported <br /> ' Modesto CA,95354 ProjectManner Joseph Angulo 12/23/0412 28 <br /> GasolineWEMOxygenates by EPA method 8260$ <br /> ' <br /> Sequoia Analytical- Sacramento <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Moto <br /> ' EW-1(5412258-05)Water Sampled 12/08!04 00 00 Received 12/09/0412 20 <br /> Tert-butyl alcohol ND 10 ug/l 2 4120262 12/20/04 12/21/04 EPA 8260E <br /> Methyl tert-butyl ether 160 10 <br /> Dl-isopropyl ether ND 10 <br /> ' Ethyl tert-butyl ether ND 10 <br /> Tert-amyl methyl ether ND 10 " <br /> 1,2-Dichloroethane ND 10 " <br /> 1,2-Dlbromoethane(EDB) ND 10 <br /> ' Benzene ND to <br /> Ethylbenzene ND 10 <br /> Toluene ND 10 <br /> Xylenes(total) ND 10 <br /> Gasoline Range Organics(C4-C12) 180 100 " <br /> Surrogate 1,2-DCA-d4 88% 60-140 " <br /> Surrogate Toluene-d8 115% 60-140 ^ <br /> 1WE_ <br /> urrogate 4BFB 98% 60-140W-1(S412258-06)Water Sampled 12/09/04 08 00 Received 12/09/04 12 20 <br /> ' Tert-butyl alcohol ND 10 ugfl 2 4120262 12/20/04 12/21/04 EPA 8260B <br /> Methyl.tert-butyl ether 170 10 " <br /> Dl-isopropyl ether ND 10 ^ <br /> Ethyl tert-butyl etber ND 10 <br /> ' Tert-amyl methyl ether ND 10 " <br /> 1,2-Dichloroethane ND 10 <br /> 1,2-Dibromoethane(EDB) ND 10 " <br /> Benzene ND 10 <br /> Ethylbenzene ND i0 <br /> Toluene ND 10 " ^ <br /> Xylenes(total) ND 10 <br /> Gasoline Range Organics(C4-C12) 200 100 " ^ <br /> ' Surrogate 1,2-DCA-d4 97% 60440 <br /> Surrogate Toluene-d8 95% 60-140 " <br /> Surrogate 4-BFB 101 % 60-140 " <br /> 1 <br /> ' <br /> Sequoia Analytical-Sacramento The results to 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 muse be reproduced in its entirety <br /> Page 7 of 13 <br />