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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 /> 1,3-Dichloropropane BSL1778 BSL1778-BLK1 <0.50 ug/L 0.50 <br /> trans-1,3-Dichloropropene BSL1778 BSL1778-BLK1 <0.50 ug/L 0.50 <br /> Ethylbenzene BSL1778 BSL1778-BLK1 <0.50 ug/L 0.50 <br /> Hexachlorobutadiene BSL1778 BSL1778-BLK1 <0.50 ug/L 0.50 <br /> Methylene chloride BSL1778 BSL1778-BLK1 <1.0 ug/L 1.0 <br /> Methyl t-butyl ether BSL1778 BSL1778-BLK1 <0.50 ug/L 0.50 <br /> Naphthalene BSL1778 BSL1778-BLK1 <0.50 ug/L 0.50 <br /> Styrene BSL1778 BSL1778-BLK1 <0.50 ug/L 0.50 <br /> 1,1,2,2-Tetrachloroethane SSL1778 BSL1778-BLK1 <0.50 ug/L 0.50 <br /> Tetrachloroethene BSL1778 BSL1778-BLK1 <0.50 ug/L 0.50 <br /> Toluene BSL1778 BSL1778-BLK1 <0.50 ug/L 0.50 <br /> 1,2,4-Trichlorobenzene BSL1778 BSL1778-BLK1 <0.50 ug/L 0.50 <br /> 1,1,1-Trichloroethane BSL1778 BSL1778-BLK1 <0.50 ug/L 0.50 <br /> 1,1,2-Trichloroethane BSL1778 BSL1778-BLK1 <0.50 ug/L 0.50 <br /> Trichloroethene BSL1778 BSL1778-BLK1 <0.50 ug/L 0.50 <br /> Trichlorofluoromethane BSL1778 BSL1778-BLK1 <0.50 ug/L 0.50 <br /> 1,2,3-Tdchloropropane BSL1778 BSL1778-BLK1 <1.0 ug/L 1.0 <br /> Vinyl chloride BSL1778 BSL1778-BLK1 <0.50 ug/L 0.50 <br /> Total Xylenes BSL1778 BSL1778-BLK1 <1.0 ug/L 1.0 <br /> Acetone BSL1778 BSL1778-BLK1 <10 ug/L 10 <br /> Acrylonitrile BSL1778 BSL1778-BLK1 <5.0 ug/L 5.0 <br /> t-Amyl Methyl ether BSL1778 BSL1778-BLK1 <0.50 ug/L 0.50 <br /> t-Butyl alcohol BSL1778 BSL1778-BLK1 <10 ug/L 10 <br /> Carbon disulfide BSL1778 BSL1778-BLK1 <1.0 ug/L 1.0 <br /> The resuNs in this report apply to dre.camp/es analyzed in accordance with the chain<f custody document.This analytical report ntu.st be reproduced in its entirely. <br /> All results listed in this report are for the exclusive use of the submitting parry. 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 42 of 44 <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />