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_ �E.virotnme�nt�alt!s�ting �1949 <br /> Herst Associates Reported: 07/21/2010 16:44 <br /> 4630 South Highway 94 North Outer Road Project: NCYC <br /> Saint Charles,MO 63304 Project Number: [none] <br /> Project Manager: Erin Fanning <br /> Volatile Organic Analysis (EPA Method 8260) <br /> BCL Sample ID: 1009909-01 Client Sample Name: Well#4/CYA#4,7/15/2010 8:10:OOAM,Erin Fanning <br /> MB Lab <br /> Constituent Result Units PQL MDL Method Bias Quals Run# <br /> Benzene ND ug/L 0.50 0.083 EPA-8260 ND 1 <br /> Bromochloromethane ND ug/L 0.50 _0.24 EPA-8260 ND 1 <br /> Bromodichloromethane ND ug/L 0.50 0.14 EPA-8260 ND <br /> Bromoform ND ug/L 0.50 0.27 EPA-8260 ND <br /> Bromomethane ND ug/L 1.0 0.25 EPA-8260 ND 1 <br /> Carbon tetrachloride ND ug/L 0.50 0.18 EPA-8260 ND <br /> Chlorobenzene ND ug/L 0.50 0.093 EPA-8260 ND <br /> Chloroethane ND ug/L 0.50 0.14 EPA-8260 _ ND <br /> Chloroform ND ug/L 0.50 0.12 EPA-8260 ND 1 <br /> Chloromethane ND ug/L 0.50 0.14 EPA-8260 ND 1 <br /> Dibromochloromethane ND ug/L 0.50 0.13 EPA-8260 ND 1 <br /> 1,2-Dibromo-3-chloropropane ND ug/L 1.0 0.44 EPA-8260 ND 1 <br /> 1,2-Dibromoethane ND ug/L 0.50 0.16 EPA-8260 ND 1 <br /> Dibromomethane ND ug/L 0.50 0.24 EPA-8260 ND 1 <br /> 1,2-Dichlorobenzene ND ug/L 0.50 0.072 EPA-8260 ND <br /> 1,3-Dichlorobenzene ND ug/L 0.50 0.15 EPA-8260 ND 1 <br /> 1,4-Dichlorobenzene ND ug/L 0.50 0.062 EPA-8260 ND 1 <br /> Dichlorodifluoromethane 0.96 ug/L 0_60 0.099 EPA-8260 ND 1 <br /> 1,1-Dichloroethane 0.16 ug/L 0.60 0.11 EPA-8260 ND J 1 <br /> 1,2-Dichloroethane ND ug/L 0.50 0.17 EPA-8260 ND 1 <br /> ' 1,1-Dichloroethene ND _ ug/L 0.50 0.18 EPA-8260 ND <br /> cis-1,2-Dichloroethene ND ug/L 0.50 0.085 EPA-8260 ND <br /> trans-1,2-Dichloroethene ND ug/L 0.50 0.15 EPA-8260 ND <br /> 1,2-Dichloropropane ND ug/L 0.50 0.13 EPA-8260 ND 1 <br /> 1,3-Dichloropropane ND ug/L 0.50 0.086 EPA-8260 ND 1 <br /> trans-l,3-Dichloropropene ND ug/L 0.50 0.079 EPA-8260 ND _ 1 <br /> Ethylbenzene ND ug/L 0.50 0.098 EPA-8260 ND <br /> Hexachlorobutadiene ND ug/L 0.50 0.17 EPA-8260 ND <br /> ' Methylene chloride ND ug/L 1.0 0.48 EPA-8260 ND 1 - <br /> Methyl t-butyl ether ND ug/L 0.50 0.11 EPA-8260 ND <br /> Naphthalene ND - ug/L 0.50 0.36 EPA-8260 ND 1 <br /> Styrene ND ug/L 0.50 0.068 EPA-8260 ND <br /> 1,1,2,2-Tetrachloroethane ND ug/L 0.50 0.17 EPA-8260 ND 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 of the submitting party. BC Laboratories,Inc.assumes no responsibility for report alteration,separation,detachment or third party interpretation. <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.belabs.com Page 7 of 29 <br />