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Laboratories Inc. <br /> Environmental 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 8260) <br /> BCL Sample ID: 080920 -05 Client Sample Name: Well#2,7/15/2008 2:22:OOPM,David Vasbinder <br /> Prep Run Instru- QC MB Lab <br /> Constituent Result Units PQL MDL Method Date Dateff ime Analyst ment ID Dilution Batch ID Sias Qualls <br /> t-Butyl alcohol NO ug/L 10 9.2 EPA-8260 07/18108 07/19/08 04:11 SVM MS-V9 1 BRG1228 NO <br /> Carbon disulfide NO ug/L 1.0 0.40 EPA-8260 07/18/08 07/19/08 04:11 SVM MS-V9 1 BRG1228 NO <br /> --- -— _ ----- --------- -- —.._..__.-._---._. ..___ <br /> trans-1,4-Dichloro-2-butene NO ug/L 5.0 1.4 EPA-8260 07/18/08 07/19/08 04:11 SVM MS-V9 1 BRG1228 NO <br /> Diisopropyl ether ND ug/L 0.50 0.18 EPA-8260 07/18108 07/19/08 04:11 SVM MS-V9 1 BRG1228 NO <br /> Ethanol NO ug/L 250 57 EPA-8260 07/18/08 07/19/08 04:11 SVM MS-V9 1 BRG1228 NO <br /> _.- --------- _ ....._-_._-__.-- -_. __.---- _—_. _._-. _-- <br /> Ethyl t-butyl ether NO ug/L 0.50 0.22 EPA-8260 07/18/08 07/19/08 04:11 SVM MS-V9 1 BRG1228 NO <br /> 2-Hexanone NO ug/L 10 2.5 EPA-8260 07/18/08 07/19/08 04:11 SVM MS-V9 1 BRG1228 NO <br /> Methyl ethyl ketone NO ug/L 10 2.4 EPA-8260 07/18/08 07/19/08 04:11 SVM MS-V9 1 BRG1228 NO <br /> Methyl iodide NO ug/L 2.0 0.42 EPA-8260 07/18/08 07/19/08 04:11 SVM MS-V9 1 BRG1228 NO <br /> Methyl isobutyl ketone NO ug/L 10 3.4 EPA-8260 07/18/08 07/19/08 04:11 SVM MS-V9 1 BRG1228 NO <br /> ---- --- —._.— __ ..--._ — - — __ ..-- .-- <br /> Vinyl acetate NO ug/L 10 2.5 EPA-8260 07/18108 07/19/08 04:11 SVM MS-V9 1 BRG1228 NO <br /> 1,2-Dichloroethane-d4(Surrogate) 103 % 76-114 (LCL-UCL) EPA-8260 07/18/08 07/19/08 04:11 SVM MS-V9 1 BRG1228 <br /> .......-.....—.. -- —— ......_—.. - -- .__......--._. ---------._.. <br /> Toluene-d8(Surrogate) 101 % 88-110 (LCL-UCL) EPA-8260 07/18/08 07/19/08 04:11 SVM MS-V9 1 BRG1228 <br /> .._----....... - - - <br /> 4-Bromofluorobenaene(Surrogate) 92.1 % 86-115 (LCL-UCL) EPA-8260 07/18/08 07/19/08 04:11 SVM MS-V9 1 BRG1228 <br /> The results in this report apply to the samples anab ed in accordance with the chain of eu-stody document. This analytical report must be reproduced in its entirety. <br /> All results listed in this report are for the exclusive use of the submittinit party. 13C laboratories,Inc.assumes no responsabiliry for report alteration,separation,detachment or third party interpretation. <br /> A4nn AH-,c r-4 PeL—efi.w ra o'tznA rFa1N'177-AQ11 FAX/8811 377-1918 W,."..bclabs.com Page 18 of 36 <br />