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"' %ale N4.0,# 885 Jarvis Dr Sequoia Magan Bi8,CA95037 Analytical (408)776-9600 IkIIIIII FAX w� URS Corporation[11 Project: ARCO#434 MLJ0673 2870 Gateway Oaks Dr.,Ste 300 Project Number: ARCO#434 Reported: Sacramento CA,95833 Project Manager: Vera Elarth 11/12/02 10:24 Volatile Organic Compounds by EPA Method 8260B ►. Sequoia Analytical-Morgan Hill Reporting Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes r DI-3(MLJ0673-09)Soil Sampled: 10/22/02 12.30 Received-10/22/02 16:30 Total Xylenes NO 1.2 ug/kg 2.4000000 2J28036 10/28/02 10/29/02 EPA 8260B Benzene NO 1.2 Ethylbenzene NO 1.2 " Toluene ND 1.2 " Surrogate:Dibromofluoromethane 102% 60-140 " b Surrogate:1,2-Dichloroethane-d4 101 % 60-140 " Surrogate:Toluene-d8 83.2% 60-140 " Surrogate:4-Bromofluorobenzene 92.2% 60-140 " tert-Butyl alcohol NO 48 2.4000000 0-10 Methyl tert-butyl ether ND 1.2 " Di-isopropyl ether ND 1.2 Ethyl cert-butyl ether ND 1.2 " tert-Amyl methyl ether ND 1.2 " Surrogate:1,2-Dichloroethane-d4 101 % 60-140 " DI4(MLJO673-10)Soil Sampled: 10/22/02 12:40 Received:10/22/02 16:30 ►. Total Xylenes ND 1.2 ug/kg 2.3900001 2728036 10/28/02 10/29/02 EPA 8260B Benzene ND 1.2 " Ethylbenzene ND 1.2 Toluene ND 1.2 " L Surrogate:Dibromofluoromethane 103% 60-140 " Surrogate:1,2-Dichloroethane-d4 105% 60-140 " Surrogate:Toluene-d8 84.4% 60-140 " Surrogate:4-Bromofluorobenzene 95.8% 60-140 " tert-Butyl alcohol NO 48 2.3900001 0-10 Methyl tert-butyl ether ND 1.2 " " r Di-isopropyl ether ND 1.2 " Ethyl tert-butyl ether NO 1.2 " tert-Amyl methyl ether NO 1.2 " Surrogate:1,2-Dichloroethaned4 105% 60-140 to " " " w.. r Sequoia Analytical-Morgan Hill The results in this report apply to the samples analyzed in accordance with/he chain of custody document.Unless otherwise stated,results are reported on a wet weight basis. This analytical report must be reproduced in its entirety. r 10 of 16 r