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A. <br />1 534 Willow Pass Road, Pittsburg, CA 94565-1701McCabeIl Anlytica Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9 <br />269 <br />-m , <br />` <br />"When Quality Counts" <br />http://www.mccatnpbell.com / E -ma: main@nccampbell.com <br />(Cont.) <br />CA ELAP 1644 <br />Page 7 of 13 <br />QC Summary Report for E524.2 <br />Quality Control Report <br />Client: <br />AdvancedGeo, Inc. <br />WorkOrder: <br />2105883 <br />Date Prepared: <br />05/19/2021 <br />BatchlD: <br />221779 <br />Date Analyzed: <br />05/19/2021 <br />Extraction Method: <br />E524.2 <br />Instrument: <br />GC18 <br />Analytical Method: <br />E524.2 <br />Matrix: <br />Drinking Water <br />Unit: <br />pg/L <br />Project: <br />Mills Property <br />Sample ID: <br />MB/LCS/LCSD-221779 <br />(Cont.) <br />CA ELAP 1644 <br />Page 7 of 13 <br />QC Summary Report for E524.2 <br />Analyte <br />MB <br />Result <br />MDL <br />RL <br />SPK <br />Val <br />MB SS <br />%REC <br />MB SS <br />Limits <br />cis-1,3-Dichloropropene <br />trans-1,3-Dichloropropene <br />Diisopropyl ether (DIPE) <br />Ethylbenzene <br />Ethyl tert-butyl ether (ETRE) <br />Freon 113 <br />Hexachlorobutadiene <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />0.220 <br />0.250 <br />0.160 <br />0.120 <br />0.150 <br />0.0900 <br />0.140 <br />0.500 <br />0.500 <br />0.500 <br />0.500 <br />0.500 <br />0.500 <br />0.500 <br />2-Hexanone <br />ND <br />0.190 <br />1.00 <br />- <br />Isopropylbenzene <br />ND <br />0.130 <br />0.500 <br />- <br />4 -Isopropyl toluene <br />ND <br />0.170 <br />0.500 <br />- <br />Methyl -t -butyl ether (MTBE) <br />ND <br />0.120 <br />0.500 <br />- <br />Methylene chloride <br />4-Methyl-2-pentanone (MIBK) <br />ND <br />ND <br />0.340 <br />0.200 <br />0.500 <br />0.500 <br />- <br />Naphthalene <br />ND <br />0.370 <br />0.500 <br />- <br />- <br />n -Propyl benzene <br />ND <br />0.130 <br />0.500 <br />- <br />- <br />Styrene <br />ND <br />0.190 <br />0.500 <br />- <br />- <br />1,1,1,2 -Tetrachloroethane <br />ND <br />0.160 <br />0.500 <br />- <br />- <br />1,1,2,2 -Tetrachloroethane <br />ND <br />0.140 <br />0.500 <br />- <br />- <br />Tetrachloroethene <br />ND <br />0.120 <br />0.500 <br />- <br />- <br />Toluene <br />1,2,3-Trichlorobenzene <br />ND <br />ND <br />0.140 <br />0.300 <br />0.500 <br />0.500 <br />- <br />- <br />- <br />- <br />1,2,4-Trichlorobenzene <br />ND <br />0.240 <br />0.500 <br />- <br />- <br />- <br />1,1,1 -Trichloroethane <br />ND <br />0.150 <br />0.500 <br />- <br />- <br />- <br />1,1,2 -Trichloroethane <br />ND <br />0.110 <br />0.500 <br />- <br />- <br />- <br />Trichloroethene <br />ND <br />0.100 <br />0.500 <br />- <br />- <br />- <br />Trichlorofluoromethane <br />ND <br />0.110 <br />0.500 <br />- <br />- <br />- <br />1,2,4-Trimethylbenzene <br />ND <br />0.200 <br />0.500 <br />- <br />- <br />- <br />1,3,5-Trimethylbenzene <br />ND <br />0.160 <br />0.500 <br />- <br />- <br />- <br />Vinyl chloride <br />ND <br />0.0950 <br />0.500 <br />- <br />- <br />- <br />m,p-Xylene <br />ND <br />0.220 <br />0.500 <br />- <br />- <br />- <br />o -Xylene <br />ND <br />0.120 <br />0.500 <br />- <br />- <br />- <br />Surrogate Recovery <br />Dibromofluoromethane <br />24.0 <br />25 <br />96 <br />70-130 <br />Toluene -d8 <br />23.8 <br />25 <br />95 <br />70-130 <br />4 -BFB <br />2.67 <br />2.5 <br />107 <br />70-130 <br />(Cont.) <br />CA ELAP 1644 <br />Page 7 of 13 <br />