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1 <br />mbLaboratories Inc. I <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 Quals <br />' <br />QC Batch ID: BTE0264 <br />Benzene <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.086 <br />_ <br />Bromochloromethane <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.23 <br />Bromodichloromethane <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.12 <br />Bromoform <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.23 <br />_ <br />Bromomethane <br />BTE0254-BLK1 <br />ND <br />ug/L <br />1.0 <br />0.20 <br />Carbon tetrachloride <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.18 <br />Chlorobenzene <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.081 <br />Chloroethane <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />- <br />0.11 <br />Chloroform <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.072 <br />Chloromethane <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.11 <br />Dibromochloromethane <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.077 <br />1,2-Dibromo-3-chloropropane <br />1,2-Dibromoethane <br />BTE0254-BLK1 <br />BTE0254-BLK1 <br />ND <br />ND <br />ug/L <br />ug/L <br />1.0 <br />0.50 <br />044 <br />0.16 <br />Dibromomethane <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.19 <br />1,2 -Dichlorobenzene <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.068 <br />1,3 -Dichlorobenzene <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.060 <br />1,4 -Dichlorobenzene <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.083 <br />Dichlorodifluoromethane <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.11 <br />1,1-Dichloroethane <br />BTE0254-BLK1 <br />ND <br />_ <br />ug/L <br />0.50 <br />0.081 <br />1,2-Dichloroethane <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.14 <br />' <br />1,1-Dichloroethene <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.12 <br />cis-1,2-Dichloroethene <br />BTE0254-BLK1 <br />ND <br />- <br />ug/L <br />0.50 <br />0.11 <br />trans- 1,2-Dichloroethene <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.097 <br />' <br />- <br />1,2-Dichloropropane <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.12 <br />1,3-Dichloropropane <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.099 <br />' <br />trans- l,3-Dichloropropene <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.079 <br />Ethylbenzene <br />- <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.12 <br />Hexachlorobutadiene <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.12 <br />' <br />Methylene chloride <br />BTE0254-BLK1 <br />ND <br />ug/L <br />1.0 <br />0.50 <br />Methyl t -butyl ether <br />BTE0254-BLK1 <br />ND <br />_ <br />ug/L <br />0.50 <br />0.11 <br />Naphthalene <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.36 <br />' <br />Styrene <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.093 <br />1,1,2,2 -Tetrachloroethane <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.14 <br />Tetrachloroethene <br />BTE0254-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.13 <br />' <br />The results in this report apply to the samples analyzed in accordance wish the chain of custody document This analytical report must be reproduced in its enarety. <br />All results listed is 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 25 of 29 <br />