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Laboratories, Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Herst Associates Reported: 06/09/2010 7:31 <br /> 4630 South Highway 94 North Outer Road Project: NCYC <br /> Saint Charles,MO 63304 Project Number Inone]...... - - - <br /> Project Manager: Erin Fanning <br /> Volatile Organic Analysis (EPA Method 8260) <br /> BCL Sample ID: 1007291-02 Client Sample Name: Well#2/CYA#2 DUP,5/26/2010 '8:37:OOAM, Erin Fanning <br /> MB Lab <br /> Constituent Result Units P MDL Method Bias Quals Run# <br /> Tetrachloroethene 7.2 ug/L 0.50 0.13 EPA-8260 NO <br /> Toluene NO ug/L. 0.50 0.093 EPA-8260 NO <br /> 1,2,4-Trichlorobenzene NO ug/L 0.50 0.17 EPA-8260 NO <br /> 1,1,1-Trichloroethane NO ug/L 0.50 0.081 EPA-8260 NO <br /> 1,1,2-Trichloroethane NO ug/L 0.50 0.21 EPA-8260 NO <br /> Trichloroethene 1.5 ug/L 0.50 0.13 EPA-8260 NO <br /> ------------- <br /> Trichlorofluoromethane 0.39 ug/L 0.50 0.11 EPA-8260 ND J <br /> .... <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 <br /> ............... <br /> Total Xylenes NO ug/L 1.0 0.26 EPA-8260 NO <br /> Acetone NO ug/L 10 4.6 EPA-8260 NO <br /> Acrylonitrile NO ug/L 5.0 1.2 EPA-8260 NO <br /> t-Amyl Methyl ether NO ug/L 0.50 0.25 EPA-8260 NO <br /> ------------ <br /> t-Butyl alcohol NO ug/L 10 9.4 EPA-8260 NO <br /> Carbon disulfide NO ug/L 1.0 0.35 EPA-8260 NO <br /> ... -......--•------------ <br /> trans-l,4-Dichloro-2-butene NO ug/L 5.0 1.4 EPA-8260 NO <br /> ............. <br /> Diisopropyl ether NO ug/L 0.50 0.19 EPA-8260 NO <br /> Ethanol NO ug/L 250 45 EPA-8260 NO <br /> Ethyl t-butyl ether NO ug/L 0.50 0.18 EPA-8260 NO <br /> 2-Hexanone NO uglL 10 3.4 EPA-8260 NO <br /> Methyl ethyl ketone NO ug/L 10 2.5 EPA-8260 NO <br /> --------------- - -.-.-- -- ..._._ <br /> Methyl <br /> -------------Methyl iodide NO ug/L 2.0 0A4 EPA-8260 NO <br /> .......------- <br /> Methyl <br /> ----- <br /> Methyl Isolutyl ketone NO ugfL. 10 2.1 EPA-8260 NO <br /> Vinyl acetate NO ug/L 10 2.4 EPA-8260 NO <br /> 1,2-Dichloroethane-d4(Surrogate) 114 % 76-114 (LCL-UCL) EPA-8260 <br /> Toluene-d8(Surrogate) 91.5 % 88-I 10 (LCL.-UCL) EPA-8260 <br /> 4-Bromofluorobenzene(Surrogate) 86.2 % 86-115 (LCL-UCL) EPA-8260 <br /> ................................. ........... <br /> Run QC <br /> Run# Method Prep Date Date/Time Analyst Instrument Dilution Batch 10 <br /> 1 EPA-8260 06102/10 06/03/10 02:18 MGC MS-V5 1 BTF0199 <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 repos 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.bclabs.com Page 10 of 32 <br />