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M-. ��Lattoggtories Inc.esting Laboratory Since 1949 <br /> Herst Associates Reported: 06/23/2010 12:34 <br /> 4630 South Highway 94 North Outer Road Project: Austin Road/NCYCC Drilling <br /> Saint Charles,MO 63304 Project Number: [none] <br /> Project Manager. Erin Fanning <br /> Volatile Organic Analysis (EPA Method8260) <br /> BCL Sample ID: 1008252-01 Client Sample Flame: Equip Blank,6114/2010 8:45:OOAM <br /> MB Lab <br /> Constituent Result Units PQL MDL Method Bias QuIlE Run# <br /> Styrene NO ug/L 0.50 0.093 EPA-8260 NO <br /> 1,1,1,2-Tetrachloroethane NO ug/L 0.50 0.11 EPA-8260 NO 1 <br /> 1,1,2,2-Tetrachloroethane NO ug/L 0,50 0.14 EPA-8260 NO 1 <br /> Tetrachloroethene NO ug/L 0.50 0.13 EPA-8260 NO <br /> Toluene NO ug/L 0.50 0.093 EPA-8260 NO 1 <br /> 1,2,4-Tdchlorobenzene NO ug/L 0.50 0.17 EPA-8260 NO 1 <br /> _--- ----- -.........._._. <br /> 1,1,1-Trichloroethane NO ug/L 0.50 0.081 EPA-8260 NO 1 <br /> 1:1,2-Trichloroethane -- NO ug/L - 0.50 0.21 EPA-8260 NO .___.._..._. <br /> Trichloroethene NO ug/L 0.50 0.13 EPA-8260 NO 1 <br /> Trichiorot3uoromethane NO ug/L 0.50 0.11 EPA-8260 NO 1-- - - <br /> 1,2,3-Trichloropropane ---~-----NO ug/L 1.0 0.30-EPA-8260 NO - <br /> Vinyl chloride --NO _-�ug/L- 0.50 _-- 0.14 EPA-8260 NO 1 <br /> Total Xylenes NO ug/L 1.0 0.26 EPA-8260 NO 1 <br /> Acetone NO ug/L 10 4,6 EPA-8260 NO 1 <br /> Acetonitrile NO ug/L 10 6.3 EPA-8260 NO 1 <br /> Acrolein NO ug/L 20 8.9 EPA-8260 NO 1 <br /> Acrylonitrile NO ug/L 5.0 1.2 EPA-8260 NO 1 <br /> Allyl chloride NO ug/L 5.0 0.80 EPA-8260 NO <br /> t-Amyl Methyl ether _- NO T ug/L 0.50 0.25 EPA-8260_ NO 1 <br /> t-Butyl alcohol ---- NO ug/L. -._._._ 10 9.4 EPA-8260 V NO <br /> Carbon disulfide NO ug/L 1.0 0.35 EPA-8260 NO <br /> Chloroprene NO ug/L 5.0 0.37 EPA-8260 NO 1 <br /> trans-14-Dichkxo-2-butene NO ug/L 5.0 1.4 EPA-8260 NO <br /> Oiisopropyl ether NO ug/L 0.50 0.19 EPA-8260 NO 1 <br /> Ethanol ND ug/L 250 45 EPA-8260 NO 1 <br /> Ethyl methacrylate NO ug/L 4.0 0.97 EPA-8260 NO 1 <br /> Ethyl t-butyl ether NO ug/L 0.50 0.18 EPA-8260 NO 1 <br /> liexachloroethane NO ug/L 0.50 0.13 EPA-8260 - NO 1 <br /> 2-Hexanone - -- NO ug/L ----10 3.4 EPA-8260 NO - --- 1 -___-- <br /> Isobutanol NO ug/L 20 5.4 EPA-8260 NO 1 <br /> --__----- <br /> Methacrylondrile NO ug/L 10 3.1 EPA-8260 ND 1 <br /> Methyl ethyl ketone NO ug/L 10 2.5 EPA-8260 NO 1 <br /> Methyl iodide NO ug/L 2.0 0.44 EPA-8260 NO 1 <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 in its entirety, <br /> All results listed in this report are for the exclusive use o£the submitting party BC Laboratories,Inc.assumes no responsibility for report nhaalion separation,detachmem or third party interpretation <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.betabs.com Page 8 of 36 <br />