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.. Labo�ato�ies Ine. i <br />' Environmental Testing Laboratory Since 1949 <br />Herst Associates Reported: 05/21/2010 12:25 <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: 1005786-01 Client Sample Name: Well #4/ CYA #4, 4/27/2010 1:59:OOPM, Erin'Fanning <br />' MB Lab <br />Constituent Result Units PQL MDL Method Bias Qualls Run # <br />Tetrachloroethene <br />1.5 <br />ug/L <br />0.50 <br />0.13 <br />EPA -8260 <br />ND <br />Toluene <br />ND <br />ug/L <br />0.50 <br />0.093 <br />EPA -8260 <br />ND <br />1 <br />' <br />1,2,4-Trichlorobenzene <br />ND <br />ug/L <br />- <br />0.50 <br />0.17 <br />EPA -8260 <br />ND <br />1 <br />1,1,1 -Trichloroethane <br />ND <br />ug/L <br />0.50 <br />0.081 <br />EPA -8260 <br />ND <br />1 <br />1,1,2 -Trichloroethane <br />ND <br />ug/L <br />0.50 <br />0.21 <br />EPA -8260 <br />ND <br />1 <br />Trichloroethene <br />0.36 <br />ug/L <br />0.50 <br />0.13 <br />EPA -8260 <br />ND J <br />1 <br />Trichlorofluoromethane <br />ND <br />ug/L <br />0.50 <br />0.11 <br />EPA -8260 <br />ND <br />' <br />1,2,3-Trichloropropane <br />ND <br />ug/L <br />1.0 <br />0.30 <br />EPA -8260 <br />ND <br />Vinyl chloride <br />ND <br />ug/L <br />0.50 <br />0.14 <br />EPA -8260 <br />ND <br />1 <br />Total Xylenes <br />ND <br />ug/L <br />1.0 <br />0.26 <br />EPA -8260 <br />ND <br />Acetone <br />ND <br />ug/L <br />10 <br />4.6 <br />EPA -8260 <br />-1 <br />ND <br />Acrylonitrile <br />t -Amyl Methyl ether <br />t -Butyl alcohol <br />ND <br />ND <br />ND <br />ug/L <br />ug/L <br />ug/L <br />5.0 <br />0.50 <br />10 <br />1.2 <br />0.25 <br />9.4 <br />EPA -8260 <br />EPA -8260 <br />EPA -8260 <br />ND <br />ND <br />ND <br />1 <br />1 <br />1 <br />Carbon disulfide <br />ND <br />ug/L <br />1.0 <br />0.35 <br />EPA -8260 <br />ND <br />1 <br />trans-1,4-Dichloro-2-butene <br />ND <br />ug/L <br />5.0 <br />1.4 <br />EPA -8260 <br />ND <br />1 <br />Diisopropyl ether <br />ND <br />ug/L <br />0.50 <br />0.19 <br />EPA -8260 <br />ND <br />1 <br />' <br />Ethanol <br />ND <br />ug/L <br />250 <br />45 <br />EPA -8260_ <br />ND <br />1 <br />Ethyl t -butyl ether <br />ND <br />ug/L <br />0.50 <br />0.18 <br />EPA -8260 <br />ND <br />1 <br />2-Hexanone <br />ND <br />ug/L <br />10 <br />3.4 <br />EPA -8260 <br />ND <br />1 <br />' <br />Methyl ethyl ketone <br />ND <br />ug/L <br />10 <br />2.5 <br />EPA -8260 <br />ND <br />Methyl iodide <br />ND <br />ug/L <br />2.0 <br />0.44 <br />EPA -8260 <br />ND <br />Methyl isobutyl ketone <br />ND <br />ug/L <br />10 <br />2.1 <br />EPA -8260 <br />ND <br />1 <br />' <br />Vinyl acetate <br />ND <br />- <br />ug/L <br />10 <br />2.4 <br />EPA -8260 <br />ND <br />1,2-Dichloroethane-d4 (Surrogate) <br />101 <br />% <br />76-114 (LCL - <br />UCL) <br />EPA -8260 <br />1 <br />Toluene -d8 (Surrogate) <br />97.1 <br />% <br />88-110 (LCL - <br />UCL) <br />EPA -8260 <br />4-Bromofluorobenzene (Surrogate) <br />97.7 <br />% <br />86-115 (LCL - <br />UCL) <br />EPA -8260 <br />' <br />Run # Method <br />Prep Date <br />Run <br />Date/Time <br />Analyst <br />Instrument Dilution <br />QC <br />Batch ID <br />1 EPA -8260 <br />05/05/10 <br />05/06/10 18:57 JCC <br />MS -V4 1 <br />BTE0254 <br />' <br />The results in this report apply to the samples analyzed in accordance with the chain ol'custody document. This analytical report must he 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.bclabs.com Page 8 of 29 <br />