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819 StnMr Ave Ste 8 <br /> Sequoia Sacramento, 95834 <br /> (916) <br /> (916)921-960400 <br /> 100 <br /> Analytical www <br /> seq 6ialabs om <br /> www sequo�alabs coin <br /> ler-Ryan-Rancho Cordova Project Former Unocal 0187,Stockton,CA 5301506 <br /> 40 Gold Camp Dr,Ste 170 Project Number NIA Reported <br /> Rancho Cordova CA,95670 Project Manager Geoffrey D Risse 02/06/03 18 03 <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 /> NP-1-22 5301506-04 Water Sampled 01/23/03 07 55 Received 01/23/03 14 25 <br /> Purgeable Hydrocarbons ND 50 ug/l 1 3010538 01/31/03 02/01/03 EPA 80158021 <br /> Benzene ND 050 " IF " <br /> 1. <br /> Toluene ND 0 50 " <br /> Ethylbenzene ND 0 50 " <br /> Xylenes(total) ND 0 50 " <br /> Methyl tert-butyl ether ND 2 0 IF <br /> It <br /> IF <br /> Surrogate a,a,a-Trifluorotoluene 94% 60-140 IF IF <br /> NP-1-65 5301506-05 Water Sampled 01/23/03 08 04 Received 01/23/0314 25 <br /> Purgeable Hydrocarbons ND 50 ug/l 1 3010538 01/31/03 02/01/03 EPA 8015/8021 <br /> Benzene ND 050 IF " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 IF <br /> " <br /> Xylenes(total) ND 0 50 IF <br /> " " <br /> Methyl tert-butyl ether ND 2 0 " 11 <br /> " 11 IF <br /> 0-r " <br /> gate a a a-Trifluorotoluene 96% 60-140 11 11 <br /> 1-111 5301506-06 Water Sampled 01/23/03 08 23 Received 01/23/0314 25 <br /> Purgeable Hydrocarbons ND 50 ug/1 1 3010538 01/31/03 02/01/03 EPA 8015/8021 <br /> Benzene ND 050 <br /> Toluene ND 0 50 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 IF " <br /> Methyl tent-butyl ether ND 20 " " <br /> Surrogate a a,a-Trifluorotoluene 93% 60-140 IF IF IF <br /> iota 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 bas's <br /> This analytical report must be reproduced in its entirety <br /> Page 4 of 9 <br />