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M = = IIS ® = IIS = II. = ® ® = r r = <br /> Laboratories Inc. ; <br /> Environmental Testing Laboratory Since 1949 <br /> Herst Associates Project: NCYC Reported: 01/11/2010 16:10 <br /> 4630 South Highway 94 North Outer Road Project Number: [none] <br /> Saint Charles,MO 63304 Project Manager: Erin Fanning <br /> Volatile Organic Analysis (EPA Method 8260) <br /> Quality Control Repo - Method Blank Analysis <br /> Constituent Batch ID QC Sample ID MB Result Units PQL MDL Lab Quals <br /> 1,1,1-Trichloroethane BSL1460 BSL1460-BLK1 <0.50 ug/L 0.50 <br /> 1,1,2-Trichloroethane BSL1460 BSL1460-BLK1 <0.50 ug/L 0.50 <br /> Trichloroethene BSL1460 BSL1460-BLK1 <0.50 ug/L 0.50 <br /> Trichlorofluoromethane BSL1460 BSL1460-BLK1 <0.50 ug/L 0.50 <br /> 1,2,3-Trichloropropane BSL1460 BSL1460-BLK1 <1.0 ug/L 1.0 <br /> Vinyl chloride BSL1460 BSL1460-BLK1 <0.50 ug/L 0.50 <br /> Total Xylenes BSL1460 BSL1460-BLK1 <1.0 ug/L 1.0 <br /> Acetone BSL1460 BSL1460-BLK1 <10 ug/L 10 <br /> Acrylonitrile BSL1460 BSL1460-BLK1 <5.0 ug/L 5.0 <br /> t-Amyl Methyl ether BSL1460 BSL1460-BLK1 <0.50 ug/L 0.50 <br /> t-Butyl alcohol BSL1460 BSL1460-BLK1 <10 ug/L 10 <br /> Carbon disulfide BSL1460 BSL1460-BLK1 <1.0 ug/L 1.0 <br /> trans-1,4-Dichloro-2-butene BSL1460 BSL1460-BLK1 <5.0 ug/L 5.0 <br /> Diisopropyl ether BSL1460 BSL1460-BLK1 <0.50 ug/L 0.50 <br /> Ethanol BSL1460 BSL1460-BLK1 <250 ug/L 250 <br /> Ethyl t-butyl ether BSL1460 BSL1460-BLK1 <0.50 ug/L 0.50 <br /> 2-Hexanone BSL1460 BSL1460-BLK1 <10 ug/L 10 <br /> Methyl ethyl ketone BSL1460 BSL1460-BLK1 <10 ug/L 10 <br /> Methyl iodide BSL1460 BSL1460-BLK1 <2.0 ug/L 2.0 <br /> Methyl isobutyl ketone BSL1460 BSL1460-BLK1 <10 ug/L 10 <br /> Vinyl acetate BSL1460 BSL1460-BLK1 <10 ug/L 10 <br /> 1,2-Dichloroethane-d4(Surrogate) BSL1460 BSL1460-BLK1 104 % 76-114 (LCL-UCL) <br /> Toluene-d8(Surrogate) BSL1460 BSL1460-BLK1 99.5 % 88-110 (LCL-UCL) <br /> 4-Bromofluorobenzene(Surrogate) BSL1460 BSL1460-BLK1 98.2 % 86-115 (LCL-UCL) <br /> The results in this report apply to the samples analyzed in accordance with the chain q/cusrodv document.This analytical report musi 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 40 of 44 <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />