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® LABORATORIES, INC. <br /> Herst Associates Project: NCYC Reported: 03/20/2008 12:48 <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 264) <br /> BCL Sample ID: 0803475-05 Client Sample Name: Well #2/CYA#2,3/13/2008 12:33:OOPM, David Vasbinder <br /> Prep Run Instru- QC MB Lab <br /> Constituent Result Units PQL MDL Method Date Date/Time Analyst ment ID Dilution Batch lD Bias Quals <br /> t-Butyl alcohol <10 ug/L 10 EPA-8260 03/18/08 03/19/08 03:57 ANO MS-V4 1 BRC0903 ND <br /> _ .................._. _. --...... _ — ---- --- <br /> Carbon disulfide <1.0 ug/L 1.0 EPA-8260 03/18/08 03/19/08 03:57 ANO MS-V4 1 BRC0903 ND <br /> trans-l,4-Dichloro-2-butene <5.0 ug/L 5.0 EPA-8260 03/18/08 03/19108 03:57 ANO MS-V4 1 BRC0903 ND <br /> . -------- .... -- _-.. <br /> Diisopropyl ether <0.50 ug/L 0.50 EPA-8260 03/18/08 03/19/08 03:57 ANO MS-V4 1 BRC0903 ND <br /> ._ . ..._._..._ _.__ ---- --_.._.............. _.- ....-- — <br /> Ethanol <250 ug/L 250 EPA-8260 03/18/08 03/19/08 03:57 ANO MS-V4 1 BRC0903 ND <br /> .. —..__--------- --- - - _ _—_ _. -- — - -- — ... _. <br /> Ethyl t-butyl ether <0.50 uglL 0.50 EPA-8260 03/18/08 03/19/08 03:57 ANO MS-V4 1 BRC0903 ND <br /> - ......_..-...---------- --- — __._�...... _._...._....--- - _ —_ —.. <br /> 2-Hexanone <10 ug/L 10 EPA-8260 03118/08 03/19/08 03:57 ANO MS-V4 1 BRC0903 ND <br /> -1.1--------- —-------— ......._ _ ----- -. . -- —_.. --------._ --�_..- — - -- <br /> Methyl ethyl ketone <10 ug/L 10 EPA-8260 03/18/08 03/19/08 03:57 ANO MS-V4 1 BRC0903 ND <br /> ----- <br /> Methyl_iodide ...._ . ... —._.._.. --_ .. <br /> ._.. <2.a _ug/L 2.0 _. _.._. _ EPA-82 ........ <br /> --- .,....- _.. <br /> y 60 03/18/08 03/19/08 03:57 ANO MS-V4 1 BRC0903 ND <br /> Methyl isobutyl ketone <10 ug/L 10 EPA-8260 03/18/08 03/19/08 03:57 ANO MS-V4 1 BRC0903 ND <br /> Vinyl acetate <10 ug/L 10 EPA-8260 03/18/08 03/19/08 03:57 ANO MS-V4 1 BRC0903 ND <br /> .....-..._......_ ..... ... ------ ...- ------------. - -- — --- - <br /> 1,2 Dichloroethane-d4(Surrogate) 106 % 76-114 (LCL-UCL) EPA-8260 03/18/08 03/19/08 03:57 ANO MS-V4 1 BRC0903 <br /> .-- <br /> Toluene-d8(Surrogate) 102 % 88-110 (LGL-UCL) EPA-8260 03/18/08 03/19/08 03:57 ANO MS-V4 1 BRC0903 <br /> ....... —.._ -0._ -- - -- <br /> 4-Bromofluorobenzene(Surrogate) 96.1 /0 86-115 (LCL-UCL) EPA-8260 03/18/08 03/19/08 03:57 ANO MS-V4 1 BRC0903 <br /> 13C Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety, <br /> All results listed in this report are for the exclusive use of the submitting party.BC Laboratories,Inc.assumes no responsibility for report alteration,separation, detachment or third party interpretation. Page 20 of 38 <br /> 4100 Atlas Court-Bakersfield,CA 93308-(661)327-4911 -FAX(661)327-1918-www.bclabs.com <br />