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Laboratories Inc. <br />Environmental Testing Laboratory Since 1949 <br />Herst Associates Reported: 06/21/2010 9:33 <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: 1008301-09 Client Sample Name: Trip Blank, 6/15/2010 12:00:OOAM <br />MB Lab <br />Constituent Result Units P L MDL Method Bias Quals Run # <br />Tetrachioroethene <br />NO <br />ug/L <br />0.50 <br />0.13 <br />EPA -8260 <br />NO <br />1 <br />Toluene - <br />- NO <br />ug/L <br />0.50 <br />0.093 <br />EPA -8260 <br />NO <br />1,2,4-Trichlorobenzene <br />NO <br />-- <br />ug/L <br />- <br />0.50 <br />0.17 <br />_ - <br />EPA -8260 <br />NO <br />1,1,1 -Trichloroethane <br />NO <br />ug/L <br />0.50 <br />0.081 <br />EPA -8260 <br />NO <br />1 <br />1,1,2 -Trichloroethane <br />ND-._.__._--_.__._.-._-------.-------_-__-__-- <br />ug/L <br />0.50 <br />0.21 <br />EPA -8260 <br />NO <br />Trichloroethene <br />NO <br />ug/L <br />0.50 <br />0.13 <br />EPA -8260 <br />NO <br />1 <br />Trichlorofluoromethane <br />NO <br />ug/L <br />0.50 <br />0.11 <br />EPA -8260 <br />NO <br />1,2,3-Trichloropropene <br />- __ <br />__-._.__.---_ <br />NO <br />ug/L <br />1.0 <br />0.30 <br />EPA -8260 <br />NO <br />Vinyl chloride <br />---- - <br />NO <br />ug/L <br />0.50 <br />0.14 <br />---------.-_.__.. <br />EPA -8260 <br />NO <br />------_---.. <br />1 <br />Total Xylenes <br />_-- _ <br />NO <br />......................-- <br />ug/L <br />--- <br />1.0 <br />0.26 <br />EPA -8260 <br />NO <br />1 <br />Acetone <br />NO <br />ug/L <br />10 <br />4.6 <br />EPA -8260 <br />NO <br />Acrylonitrile <br />NO <br />ug/L <br />5.0 <br />1.2 <br />EPA -8260 <br />NO <br />t -Amyl Methyl ether <br />NO <br />ug/L <br />0.50 <br />0.25 <br />EPA -8260 <br />NO <br />1 <br />t -Butyl alcohol <br />NO <br />ug/L <br />10 <br />9.4 <br />EPA -8260 <br />NO <br />Carbon disulfide <br />trans- l,4-Dichloro-2-butene <br />NO <br />NO <br />ug/L <br />ug/L <br />1.0 <br />5.0 <br />0.35 <br />1.4 <br />EPA -8260 <br />EPA -8260 <br />NO <br />NO <br />1 <br />1 <br />Diisopropyi ether <br />NO <br />ug/L <br />0.50 <br />0.19 <br />EPA -8260 <br />NO <br />E <br />Ethanol <br />NO <br />ug/L <br />250 <br />45 <br />EPA -8260 <br />NO <br />1 <br />Ethyl t -butyl ether <br />NO <br />ug/L <br />0.50 <br />0.18 <br />EPA -8260 <br />NO <br />1 <br />2-Hexanone <br />NO <br />ug/L <br />10 <br />3.4 <br />EPA -8260.._ <br />NO <br />Methyl ethyl ketone <br />Methyl <br />NO <br />ug/L <br />10 <br />2.5 <br />EPA -8260 <br />NO <br />1 <br />Methyl iodide <br />NO <br />ug/L <br />2.0 <br />0.44 <br />EPA -8260 <br />NO <br />1 <br />lsobutyl ketone <br />NO <br />ug/L <br />10 <br />2.1 <br />EPA -8260 <br />NO <br />'Methyl <br />Vinyl acetate <br />NO <br />ug/L <br />10 <br />2.4 <br />EPA -8260 <br />NO <br />1,2-Dichioroethane-d4 (Surrogate) <br />113 <br />% <br />76 - 114 (LCL - UCL) <br />EPA -8260 <br />q <br />Toluene -d8 (Surrogate) <br />99.4 <br />% <br />88 - 110 (LCL - UCL) <br />EPA -8260 <br />1 <br />4-Bromofluorobenzene (Surrogate) <br />95.6 <br />% <br />86 - 115 (LCL - UCL) <br />EPA -8260 <br />1 <br />' <br />Run # Method <br />Prep Date <br />Run <br />Date/Time Analyst <br />Instrument Dilution <br />QC <br />Batch ID <br />1 EPA -8260 <br />06/16/10 <br />06/17/10 10:40 JCC <br />HPCHEM 1 <br />BTF1132 <br />-- <br />- -- <br />- <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.bclabs.com Page 24 of 29 <br />