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_Wal' Laboratories, Inc. <br />Environmental Testing Laboratory Since 1949 <br />Geologic Associates <br />11415 W. Bernardo Ct, Ste 220 <br />San Diego, CA 92127 <br />Reported: 03/17/2015 16:31 <br />Project: French Camp <br />Project Number: [none] <br />Project Manager: Bill Lopez <br />Volatile Organic Analysis (EPA Method 82606) <br />Quality Control Report - Method Blank Analysis <br />Constituent <br />QC Sample ID <br />MB Result <br />Units <br />PQL <br />MDL Lab Quals <br />QC Batch ID: BYC0643 <br />Benzene <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.083 <br />Bromochloromethane <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.24 <br />Bromodichloromethane <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.14 <br />Bromoform <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.27 <br />Bromomethane <br />BYC0643-BLK1 <br />ND <br />ug/L <br />1.0 <br />0.25 <br />Carbon tetrachloride <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.18 <br />Chlorobenzene <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.093 <br />Chloroethane <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.14 <br />Chloroform <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.12 <br />Chloromethane <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.14 <br />Dibromochloromethane <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.13 <br />1,2-Dibromo-3-chloropropane <br />BYC0643-BLK1 <br />ND <br />ug/L <br />1.0 <br />0.44 <br />1,2-Dibromoethane <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.16 <br />Dibromomethane <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.24 Now <br />1,2 -Dichlorobenzene <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.072 <br />1,3 -Dichlorobenzene <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.15 <br />1,4 -Dichlorobenzene <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.062 <br />Dichlorodifluoromethane <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.099 <br />1,1-Dichloroethane <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.11 <br />1,2-Dichloroethane <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.17 <br />1,1-Dichloroethene <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.18 <br />cis-1,2-Dichloroethene <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.085 <br />trans-1,2-Dichloroethene <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.15 <br />1,2-Dichloropropane <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.13 <br />1,3-Dichloropropane <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.086 <br />2,2-Dichloropropane <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.13 <br />1,1-Dichloropropene <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.085 <br />cis-1,3-Dichloropropene <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.14 <br />trans-1,3-Dichloropropene <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.079 <br />Ethylbenzene <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.098 <br />Hexachlorobutadiene <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.17 <br />Methylene chloride <br />BYC0643-BLK1 <br />ND <br />ug/L <br />1.0 <br />0.48 <br />Methyl t -butyl ether <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.11 <br />Naphthalene <br />BYC0643-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.36 + <br />The results in this report apply to the samples analyzed in accordance with the chain of'custody document. This analytical report must he 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 />Report ID: 1000335374 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Page 39 of 50 <br />