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1 u <br />Laboratories Inc. <br />Environmental Testing Laboratory Since 1949 <br />Volatile Organic Analysis (EPA Method 8260) <br />Quality Control Report - Method Blank Analysis <br />' <br />Constituent <br />QC Sample ID <br />MB Result Units <br />PQL <br />MDL Lab Qualls <br />' <br />QC Batch ID: BTE0254 <br />Toluene <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.093 <br />1,2,4-Trichlorobenzene <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.17 <br />1,1,1 -Trichloroethane <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.081 <br />1,1,2 -Trichloroethane <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.21 <br />Trichloroethene <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.13 <br />Trichlorofluoromethane <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.11 <br />' <br />1,2,3-Trichloropropane <br />BTE0254-BLK1 <br />ug/L <br />1.0 <br />0.30 <br />Vinyl chloride <br />BTE0254-BLK1 <br />_ND <br />ND <br />ug/L <br />0.50 <br />0.14 <br />Total Xylenes <br />BTE0254-BLK1 <br />ND <br />ug/L <br />1.0 <br />0.26 <br />Acetone <br />BTE0254-BLK1 <br />ND <br />ug/L <br />10 <br />4.6 <br />Acrylonitrile <br />BTE0254-BLK1 <br />ND <br />ug/L <br />5.0 <br />1.2 <br />t -Amyl Methyl ether <br />BTE0254 BLK1 <br />ND <br />ug/L <br />0.50 <br />0.25 <br />t -Butyl alcohol <br />BTE0254 BLK1 <br />ND <br />ug/L <br />10 <br />9.4 <br />Carbon disulfide <br />BTE0254-BLK1 <br />ND <br />ug/L <br />1.0 <br />0.35 <br />trans-l,4-Dichloro-2-butene <br />BTE0254-BLK1 <br />ND <br />ug/L <br />5.0 <br />1.4 <br />Diisopropyl ether <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.19 <br />Ethanol <br />BTE0254-BLK1 <br />ND <br />ug/L <br />250 <br />45 <br />Ethyl t -butyl ether <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.18 <br />2-Hexanone <br />BTE0254-BLK1 <br />ND <br />ug/L <br />10 <br />3.4 <br />Methyl ethyl ketone <br />BTE0254-BLK1 <br />ND <br />ug/L <br />10 <br />2.5 <br />' <br />Methyl iodide <br />BTE0254-BLK1 <br />ND <br />ug/L <br />2.0 <br />0.44 <br />Methyl isobutyl ketone <br />BTE0254-BLK1 <br />ND <br />ug/L <br />10 <br />2.1 <br />Vinyl acetate <br />BTE0254-BLK1 <br />ND <br />ug/L <br />10 <br />2.4 <br />1,2-Dichloroethane-d4 (Surrogate) <br />BTE0254-BLK1 <br />102 <br />% <br />76 - 114 <br />(LCL - UCL) <br />Toluene -d8 (Surrogate) <br />BTE0254-BLK1 <br />101 <br />% <br />88-110 <br />(LCL -UCL) <br />4-Bromofluorobenzene (Surrogate) <br />BTE0254-BLK1 <br />99.2 <br />% <br />86 - 115 <br />(LCL - UCL) <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 vwvw.bclabs.com Page 26 of 29 <br />