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Laboratories, Lnc, <br />Environmental Testing Laboratory Since 1949 <br />Geologic Associates <br />11415 W. Bernardo Ct, Ste 220 <br />San Diego, CA 92127 <br />IAU <br />Reported: <br />Project: <br />Project Number: <br />Project Manager: <br />10/02/2017 16:53 <br />Forward LF Domestic Well Sampling <br />S017.1030 <br />Bill Lopez <br />Volatile Organic Analysis (EPA Method 826013) <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: B[12687 <br />Tetrachloroethene <br />B[12687-BLK1 <br />NO <br />ug/L <br />0.50 <br />0.13 <br />Toluene <br />B[12687-BLK1 <br />NO <br />ug/L <br />0.50 <br />0.093 <br />1,2,4-Tdchlorobenzene <br />B[12687-BLK1 <br />NO <br />ug/L <br />0.50 <br />0.19 <br />1,1,1 -Trichloroethane <br />B[12687-BLK1 <br />NO <br />ug/L <br />0.50 <br />0.11 <br />1,1,2 -Trichloroethane <br />B[12687-BLK1 <br />NO <br />ug/L <br />0.50 <br />0.16 <br />Trichloroethene <br />B[12687-BLK1 <br />NO <br />ug/L <br />0.50 <br />0.085 <br />Trichlorofluoromethane <br />B[12687-BLK1 <br />NO <br />ug/L <br />0.50 <br />0.13 <br />1,2,3-Trichloropropane <br />B[12687-BLK1 <br />NO <br />ug/L <br />1.0 <br />0.24 <br />Vinyl chloride <br />B[12687-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.12 <br />Total Xylenes <br />B[12687-BLK1 <br />NO <br />ug/L <br />1.0 <br />0.36 <br />Acetone <br />B[12687-BLK1 <br />NO <br />ug/L <br />10 <br />4.6 <br />crylonitrile <br />t -Amyl Methyl ether <br />B[12687-BLK1 <br />B[12687-BLK1 <br />NO <br />NO <br />ug/L <br />ug/L <br />5.0 <br />0.50 <br />1.2 <br />0.25 <br />t -Butyl alcohol <br />B[12687-BLK1 <br />NO <br />ug/L <br />10 <br />9.4 <br />Carbon disulfide <br />B[12687-BLK1 <br />NO <br />ug/L <br />1.0 <br />0.38 <br />trans-1,4-Dichloro-2-butene <br />B[12687-BLK1 <br />NO <br />ug/L <br />5.0 <br />1.4 <br />Diisopropyl ether <br />B[12687-BLK1 <br />NO <br />ug/L <br />0.50 <br />0.23 <br />Ethanol <br />B[12687-BLK1 <br />ND <br />ug/L <br />250 <br />50 <br />Ethyl t -butyl ether <br />B[12687-BLK1 <br />ND <br />ug/L <br />0.50 <br />0.18 <br />2-Hexanone <br />B[12687-BLK1 <br />NO <br />ug/L <br />10 <br />3.4 <br />Methyl ethyl ketone <br />B[12687-BLK1 <br />NO <br />ug/L <br />10 <br />2.5 <br />Methyl iodide <br />B[12687-BLK1 <br />NO <br />ug/L <br />2.0 <br />0.47 <br />Methyl isobutyl ketone <br />B[12687-BLK1 <br />NO <br />ug/L <br />10 <br />2.1 <br />Vinyl acetate <br />B[12687-BLK1 <br />NO <br />ug/L <br />10 <br />1.8 <br />1,2-Dichloroethane-d4 (Surrogate) <br />B[12687-BLK1 <br />116 <br />% <br />75 -125 (LCL - UCL) <br />Toluene -d8 (Surrogate) <br />B[12687-BLK7 <br />99.7 <br />% <br />80 -120 (LCL - UCL) <br />4-Bromofluorobenzene (Surrogate) <br />B[12687-BLK1 <br />103 <br />% <br />80 -120 (LCL - UCL) <br />0 <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 />Report ID: 1000655425 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Page 9 of 12 <br />