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Laboratories Inc. W- -- <br /> Environmental <br /> Testing Laboratory Since 1949 <br /> Herst Associates Project: NCYC Reported: 07/21/2008 16:37 <br /> 4630 South Highway 94 North Outer Road Project Number: [none] <br /> Saint Charles,MO 63304 Project Manager: David Vasbinder <br /> Volatile Organic Analysis (EPA /Method 6260) <br /> BCL Sample ID: 0809206-01 Client Sample Name: Well#4,7/1512008 1:55:OOPM,David Vasbinder <br /> Prep Run Instm- QC MB Lab <br /> Constituent Result Units P L MDL Method Date Date/Time Analyg meet ID Dilution Batch lD Bias Quals <br /> t-Butyl alcohol ND ug/L 10 9.2 EPA-8260 07/18/08 07/19/08 02:26 SVM MS-V9 1 BRG1228 ND <br /> Carbon disulfide ND ug/L 1.0 0.40 EPA-8260 07118/08 07/19/08 02:26 SVM MS-V9 1 BRG1228 ND <br /> trans-1,4-Dichloro-2-butene ND ug/L 5.0 1.4 EPA-8260 07/18/08 07/19/08 02:26 SVM MS-V9 1 BRG1228 <br /> Diisopropyl ether ND ug/L 0.50 0.18 EPA-8260 07/18!08 07/19/08 02:26 SVM MS-V9 1 BRG1228 ND <br /> Ethanol ND ug/L 250 57 EPA-8260 07/18/08 07/19/08 02:26 SVM MS-V9 1 BRG1228 <br /> Ethyl t-butyl ether ND ug/L 0.50 0.22 EPA-8260 07/18/08 07/19/08 02:26 SVM MS-V9 1 BRG1228 ND - - <br /> 2-Hexanone ND ug/L 10 2.5 EPA-8260 07/18/08 07/19/08 02:26 SVM MS-V9 1 BRG1228 ND <br /> Methyl ethyl ketone ND ug/L 10 2.4 EPA-8260 07/18/08 07/19/08 02:26 SVM MS-V9 1 BRG1228 ND <br /> Methyl iodide ND ug/L 2.0 0.42 EPA-8260 07/18/08 07/19/08 02:26 SVM MS-V9 1 BRG1228 ND <br /> Methyl isobutyi ketone ND ug/L 10 3.4 EPA-8260 07/18/08 07/19/08 02:26 SVM MS-V9 1 BRG1228 ND <br /> _.—......—........_.—_—._..._._.. _....-- - <br /> Vinyl acetate ND ug/L 10 2.5 EPA-8260 07/18/08 07/19/08 02:26 SVM MS-V9 1 BRG1228 ND <br /> 1,2-Dichloroethane-d4(Surrogate) 94.6 % 76-114 (LCL-UCL) EPA-8260 07/18/08 07119/08 02:26 SVM MS-V9 1 BRG1228 <br /> ----------- <br /> S <br /> Toluene-d8(Surrogate) 100 % 88-110 -- <br /> ( CL-UCL) EPA-8260 07/18/08 07/19/08 02:26 SVM MS-V9 1 BRG1228 <br /> 4-Bromofluorobenzene(Surrogate) 91.2 /0 86-115 (L--..... <br /> o CL-UCL) EPA-8260 07!18!088/08 07/19/08 02:26„ SVM MS-V9 1 BRG1228 <br /> The results in this report apply to the samples analyzed in accordance with the chain of custody document This analytical report must be reproduced to its entirety. <br /> All results listed in this report are for the exclusive im of the submitting party. BC Laboratories,Inc.assumes no responsibility for report alteration,separation,detachment or third party interpretation. Page 6 0136 <br /> ra oaanR mr a77-AQ11 FAX(8611 327-1918 www.bclabs.com g <br />