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Ci <br />Ci <br />P - <br />I <br />0 <br />n <br />ii <br />0 <br />Laboratories Inc. <br />Environmental Testing Laboratory Since 1949 <br />W! <br />Geologic Associates Reported: 10/25/2011 16:38 <br />11415 West Bernardo Ct, Ste 200 Project: Corral Hollow EMP <br />San Diego, CA 92127 Project Number: 2011-0115 <br />Project Manager: John Hower <br />Quality Control Report - Method Blank Analysis <br />Constituent QC Sample ID MB Result Units PQL MDL Lab Quals <br />QC Batch ID: BUJ1613 <br />Toluene <br />BUJ1613-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.093 <br />1,2,3-Trichlorobenzene <br />BUJ1613-BLK1 <br />NO <br />ug/L <br />0.50 <br />0.16 <br />1,2,4-Trichlorobenzene <br />BUJ1613-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.19 <br />1,1,1 -Trichloroethane <br />BUJ1613-BLK1 <br />NO <br />ug/L <br />0.50 <br />0.11 <br />1,1,2 -Trichloroethane <br />BUJ1613-BLKI <br />NO <br />ug/L <br />0.50 <br />0.16 <br />Trichloroethene <br />BUJ1613-BLK1 <br />NO <br />ug/L <br />0.50 <br />0.085 <br />Trichlorofluoromethane <br />BUJ1613-BLK1 <br />NO <br />ug/L <br />0.50 <br />0.13 <br />1,2,3-Trichloropropane <br />BUJ1613-BLK1 <br />ND <br />ug/L <br />1.0 <br />0.24 <br />1,2,4-Trimethylbenzene <br />BUJ1613-BLK1 <br />NO <br />ug/L <br />0.50 <br />0.12 <br />1,3,5-Thmethylbenzene <br />BUJ1613-BLK1 <br />NO <br />ug/L <br />0.50 <br />0.12 <br />Vinyl chloride <br />BUJ1613-BLK1 <br />NO <br />ug/L <br />0.50 <br />0.12 <br />Total Xylenes <br />BUJ1613-BLK1 <br />NO <br />ug/L <br />1.0 <br />0.36 <br />Acetone <br />BUJ1613-BLK1 <br />NO <br />ug/L <br />10 <br />4.6 <br />Acetonitrile <br />BUJ1613-BLK1 <br />ND <br />ug/L <br />10 <br />5.5 <br />Acrylonitrile <br />BUJ1613-BLK1 <br />ND <br />ug/L <br />5.0 <br />1.2 <br />Carbon disulfide <br />BUJ1613-BLK1 <br />NO <br />ug/L <br />1.0 <br />0.38 <br />trans-l,4-Dichloro-2-butene <br />BUJ1613-BLK1 <br />NO <br />ug/L <br />5.0 <br />1.4 <br />2-Hexanone <br />BUJ1613-BLKI <br />NO <br />ug/L <br />10 <br />3.4 <br />Methyl ethyl ketone <br />BUJ1613-BLK1 <br />ND <br />ug/L <br />10 <br />2.5 <br />Methyl iodide <br />BUJ1613-BLK1 <br />NO <br />ug/L <br />2.0 <br />0.47 <br />Methyl isobutyl ketone <br />BUJ1613-BLK1 <br />NO <br />ug/L <br />10 <br />2.1 <br />Vinyl acetate <br />BUJ1613-BLK1 <br />NO <br />ug/L <br />10 <br />1.8 <br />p- & m -Xylenes <br />BUJ1613-BLK1 <br />NO <br />ug/L <br />0.50 <br />0.28 <br />o -Xylene <br />BUJ1613-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.082 <br />1,2-Dichloroethane-d4 (Surrogate) <br />BUJ1613-BLK1 <br />103 <br />% <br />76 - 114 (LCL - UCL) <br />Toluene -d8 (Surrogate) <br />BUJ1613-BLK1 <br />101 <br />% <br />88 - 110 <br />(LCL - UCL) <br />4-Bromofluorobenzene (Surrogate) <br />BUJ1613-BLK1 <br />102 <br />% <br />86 - 115 <br />(LCL - UCL) <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 www.bclabs.com Page 11 of 14 <br />