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Laboratories Inc. <br /> i ! Environmental Testing Laboratory Since 1949 <br /> Herst Associates Reported: 06109/2010 7:31 <br /> i 4630 South Highway 94 North Outer Road Project NCYC <br /> Saint Charles,MO 63304 Project Number [none] <br /> .............................. Project Manager. Erin Fanning <br /> i Volatile Organic Analysis (EPA Method 8260) <br /> BCL Sample ID: 1007291-03 Client Sample Name: Well#1/CYA#1,6/26/2010 8:46:OOAM,Erin Fanning <br /> MB Lab <br /> Constituent Result Units P L MDL Method Bias quals Run# <br /> Tetrachloroethene 6.2 ug/L 0.50 0.13 EPA-8260 ND ; <br /> Toluene NO ug/L 0.50 0.093 EPA-8260 NO 1 <br /> 1,2,4-Trichiorobenzene NO ug/L 0.50 0.17 EPA-8260 NO 1 <br /> 1,1,1-Trichloroethane NO ug/L 0.50 0.081 EPA-8260 NO <br /> i 1,1,2-Trichloroethane NO ug/L 0.50 0_21 EPA-8260 NO <br /> Trichloroethene 1.2 uglL 0.50 0.13 EPA-8260 ND 1 <br /> Trichlorofluoromethane 0.48 uglL 0.50 0.11 EPA-8260 ND J <br /> 1,2,3-Trichloropropane NO ug/L 1.0 0.30 EPA-8260 NO 1 <br /> Vinyl chloride NO ug/L 0.50 0.14 EPA-8260 NO 1 <br /> -.._-....._._._......._. - - - - <br /> i 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 /> -- -- -._. <br /> .............. <br /> Acrylonitrile <br /> _ - - -- ------- --- - - - - <br /> Acrylonitrile NO ug/L 5.0 1.2 EPA-8260 NO 1 <br /> t-Amyl Methyl ether NO ug/L 0.50 0.25 EPA-8260 NO 1 <br /> t-Butyl alcohol - NO ug/L 10 9.4 EPA-8260 NO <br /> 260 NO <br /> Carbon disulfide NO ug/L 1.0 0.35 EPA-8 <br /> i �_. --- --- ---_ - --- --- --- -- _ _ _ ------------------ _ _ _ _ _- <br /> trans-l,4-Dichloro-2-butene NO ug/L 5.0 1.4 EPA-8260 NO <br /> Diisopropyi ether - NO ug/L 0.50 0.19 EPA-8260 -_ NO 1 <br /> Ethanol --- NO _ ug/L 250 45 EPA-8260 - _ND___. <br /> 1 _ -_ -- -_ ---- - _ -- --------- <br /> Ethyl t-butyl ether NO ug/L 0,50 0.18 EPA-8260 NO 1 <br /> 2-Hexanone ---` NO - ug/L 10 -VV'3.4 EPA-8260 NO 1 - <br /> i 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 /> Methyl isobutyi ketone - NO - ug/L 10 2.1 EPA-8260 NO 1 - <br /> Vinyl acetate - __--- NO ug/L --10 2.4 EPA-8260 ---ND <br /> 1,2-Dichloroethane-d4(Surrogate) 106 % 76-114 (LGL-UCL) EPA-8260 1 <br /> Toluene-d8(Surrogate) 93.1 % 68-110 (LCL-UCL) EPA-8260 1 <br /> 4-Bromofluorobenzene(Surrogate) 93.3 % 86-115 (LCL-UCL) EPA-8260 <br /> i Run QC <br /> Run# Method Prep Date Date/Time Analyst instrument Dilution Batch ID <br /> 1 EPA-8260 06/02/10 06/03110 02:47 MGC MS-V5 1 BTF0199 <br /> 1 <br /> 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 Us 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 93306 (661)327-4911 FAX(661)327-1918 WWW.bclabs.com Page 12 of 32 <br />