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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 826413) <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: BYC0655 <br />Ethyl t -butyl ether <br />BYC0655-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.18 <br />Hexachloroethane <br />BYC0655-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.16 <br />2-Hexanone <br />BYC0655-BLK1 <br />ND <br />ug/L <br />10 <br />3.4 <br />Isobutanol <br />BYC0655-BLKI <br />ND <br />ug/L <br />20 <br />7.7 <br />Methacrylonitrile <br />BYC0655-BLK1 <br />ND <br />ug/L <br />10 <br />1.7 <br />Methyl ethyl ketone <br />BYC0655-BLK1 <br />ND <br />ug/L <br />10 <br />2.5 <br />Methyl iodide <br />BYC0655-BLK1 <br />ND <br />ug/L <br />2.0 <br />0.47 <br />Methyl isobutyl ketone <br />BYC0655-BLK1 <br />ND <br />ug/L <br />10 <br />2.1 <br />Methyl methacrylate <br />BYC0655-BLK1 <br />ND <br />ug/L <br />5.0 <br />1.5 <br />Propionitrile <br />BYC0655-BLK1 <br />ND <br />ug/L <br />20 <br />4.2 <br />Vinyl acetate <br />BYC0655-BLK1 <br />ND <br />ug/L <br />10 <br />1.8 <br />1,24Dichloroethane-d4 (Surrogate( <br />BYC0666-BLKI <br />108 <br />% <br />75 -125 (LCL - UCL( <br />Toluene -d8 (Surrogate) <br />1BYC0655-1BLK1 <br />102 <br />% <br />80 -120 (LCL - UCL) <br />4-Bromofluorebenzene (Surrogate) <br />BYC0666-BLK1 <br />97.2 <br />% <br />80 -120 (LCL - UCL) <br />is <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 43 of 50 <br />