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Laboratories, Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Herst Associates Project: NCYC Reported: 05/15/2008 16:06 <br /> 4630 South Highway 94 North Outer Road Project Number: [none] <br /> Saint Chartres,MO 63304 Project Manager: David Vasbinder <br /> Volatile Organic Anal i Method 20) <br /> Quality Control Report _ Method Blank Analysis <br /> Constituent Batch ID QC Sample ID MB Result Units PQL MDL Lab Quals <br /> trans 1,4-Dichloro-2-butene BRD1315 BRD1315-BLK1 NO ug/L 5-- 2.0 <br /> Diisopropyl ether BRD1315 BRD1315-BLK1 NO ug/L 0.50 0.18 <br /> .. <br /> BRD1315 <br /> — -- —......_. ..—_.—_. _—. ..�.. <br /> Ethanol BRD1315-BLK1 NO ug/L 250 57 <br /> Ethyl t-butyl etherBRD1315 BRD1315-BLK1 NO ug/L 0.50 0.22 <br /> 2-Hexanone BRD1315 BRD1315-BLK1 NO ug/L 10 2.5 <br /> . ... <br /> Methyl ethyl ketone BRD1315 BRD1315-BLK1 NO ug/L 10 1.6 <br /> .- -------- <br /> Methyl Iodide BRD1315 BRD1315-BLK1 NO uglL 2,0 <br /> Methyl isobutyl ketone BRD1315 BRD1315-BLK1 NO ug/L 10 <br /> Vinyl acetate BRD1315 BRD1315-BLK1 NO ug/L 10 <br /> 3.1 <br /> _.,.._—._-._ ..... . —__— --- -.. ._.. <br /> 1,2-Dichloroethane-d4(Surrogate) BRD1315 BRD1315-BLK1 104 % 76-114 (LCL- <br /> —., ------------_— --- - - <br /> Toluene-d8(Surrogate) BRD1315 BRD1315-BLK1 101 % 88-110 (LCL-UCL) <br /> 4-Bromofluorobenzene(Surrogate) BRD1315 BRD1315-BLK1 101 % 86_115 (LCL-UCL) <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. Page 35 of 36 <br /> 411)0 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com g <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />