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Laboratories Inc. <br /> Laboratories <br /> 1949 <br /> JW�Envtirotnm�ental T!s!fing 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 Method 8260) <br /> BCL Sample ID: 1008252-01 =Client Sample Name: Equip Blank,6/14/2010 8:45:00AM <br /> MB Lab <br /> Constituent Result Units PQL MDL, Method Bias Quals Run# <br /> Benzene ND ug/L 0.50 0.086 EPA-8260 ND 1 <br /> ............. <br /> Bromochloromethane ND ug/L 0.50 0.23 EPA-8260 NO <br /> Bromodichloromethane ND ug/L 0.50 0.12 EPA-8260 ND <br /> Bromoform ND ug/L 0.50 0,23 EPA-8260 NO <br /> Brornomethane NO ug/L 1.0 0.20 EPA-8260 ND <br /> Carbon tetrachloride ND ug/L 0.50 0.18 EPA-8260 ND <br /> Chlorobenzene ND ug/L 0.50 0.081 EPA-8260 NO <br /> Chloroethane ND ug/L 0,50 0.11 EPA-8260 ND <br /> Chloroform 0.38 ug/L 0.50 0.072 EPA-8260 ND J <br /> Chloromethane ND ug/L 0.50 0.11 EPA-8260 <br /> Dibromochloromethane ND ug/L 0.50 0.077 EPA-8260 ND <br /> 1,2-Dibromo-3-chloropropane _____--ND <br /> ------- <br /> ND ug/L i-O 0.44 EPA-8260 NO <br /> 1,2-Dibromoethane ND ug/L 0.50 0.16 EPA-8260 NO <br /> -- - <br /> Dibrornomethane ND ug/L 0.50 0.19 EPA-8260 ND <br /> 1,2-Dichlorobenzene ND ug/L 0.50 0.068 EPA-8260 ND <br /> 1,3-Dichlorobenzene ND ug/L 0.50 0.060 EPA-8260 ND <br /> 1,4-Dichlorobenzene ND ug/L 0.50 0.083 EPA-8260 ND <br /> Dichlorodifluoromethane NO ug/L 0.50 0.41 EPA-8260 ND <br /> 1,1-Dichloroethane ND ug/L 0.50 0.081 EPA-8260 ND <br /> 1,2-Dlchloroethane ND ug/L 0.50 0.14 EPA-8260 ND <br /> 1,1-Dichloroethene ND ug/L 0.50 0.12 EPA-8260 ND <br /> cis-1,2-Dichloroethene ND ug/L 0.50 0.11 EPA-8260 ND <br /> trans-1,2-Dichloroethene ND ug/L 0.50 0,097 EPA-8260 ND <br /> 1,2-Dichloropropane ND ug/L 0.50 0.12 EPA-8260 ND <br /> 1,3-Dichloropropane ND ug/L 0.50 0.099 EPA-8260 ND <br /> ----------- ------ <br /> 2,2-Dichloropropane ND ug/L 0.50 0.11 EPA-8260 NO <br /> 1,1-Dichloropropene ND ug/L 0.50 0.11 EPA-8260 ND <br /> cis-1,3-Dichloropropene ND ug/L 0.50 0.098 EPA-8260 NO <br /> trans-11,3-Dichloropropene ND ug/L OZO 0,079 EPA-8260 ND <br /> Ethylbenzene ND ug/L 0.50 0.12 EPA-8260 ND <br /> Hexachlorobutadiene ND ug/L 0.50 0.12 EPA-8260 NO, <br /> Methylene chloride ND ug/L 1.0 0.50 EPA-8260 ND <br /> Naphthalene ND ug/L 0.50 0.36 EPA-8260 ND <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 of the submitting party BC Laboratories,Inc.assumes no responsibility for report alteratiorl separation,detachment or third party interpretation <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 7 of 36 <br />