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Method Blank (MB) <br />(MB) R3729468-3 11/11/2111:12 <br />MB Result MB Qualifier MB MDL MB RDL <br />Analyte mg/kg mg/kg mg/kg <br />p-lsopropyltoluene U 0.00255 0.00500 <br />2-Butanone (MEK) 0.110 0.0635 0.100 <br />Methylene Chloride U 0.00664 0.0250 <br />4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250 <br />Methyl tert-butyl ether U 0.000350 0.00100 <br />Naphthalene U 0.00488 0.0125 <br />n-Propylbenzene U 0.000950 0.00500 <br />Styrene U 0.000229 0.0125 <br />1,1.1,2-Tetrachloroethane U 0.000948 0.00250 <br />1,1,2,2-Tetrachloroethane U 0.000695 0.00250 <br />Tetrachloroethene U 0.000896 0.00250 <br />Toluene U 0.00130 0.00500 <br />1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250 <br />1,2,3-Trichlorobenzene U 0.00733 0.0125 <br />1,2,4-Trichlorobenzene U 0.00440 0.0125 <br />1,1,1-Trichloroethane U 0.000923 0.00250 <br />1,1,2-Trichloroethane U 0.000597 0.00250 <br />Trichloroethene U 0.000584 0.00100 <br />Trichlorofluoromethane U 0.000827 0.00250 <br />1,23-Trichloropropane U 0.00162 0.0125 <br />1,2,3-Trimethylbenzene U 0.00158 0.00500 <br />1,2,4-Trimethylbenzene U 0.00158 0.00500 <br />13,5-Trimethylbenzene U 0.00200 0.00500 <br />Vinyl chloride U 0.00116 0.00250 <br />Xylenes, Total U 0.000880 0.00650 <br />(S) Toluene-d8 105 75.0-131 <br />(S) 4-Bromotluorobenzene 99.0 67.0-138 <br />(S)1,2-Dichloroethane-d4 91.6 70.0-130 <br />WG1772736 QUALITY CONTROL SUMMARY <br />Volatile Organic Compounds (GC/MS) by Method 8260B L1427948-01 <br />Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) <br />(LCS) R3729468-1 11/11/21 09:54. (LCSD) R3729468-2 11/11/2110:14 <br />Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits <br />Analyte mg/kg mg/kg mg/kg % % % % % <br />Acetone 0.625 0.626 0.649 100 104 10.0-160 3.61 31 <br />Acrylonitrile 0.625 0.482 0.496 77.1 79.4 45.0-153 2.86 22 <br />Benzene 0.125 0.138 0.138 110 110 70.0-123 0.000 20 <br />Bromobenzene 0.125 0.111 0.105 88.8 84.0 73.0-121 5.56 20 <br />Bromodichloromethane 0.125 0.134 0.137 107 110 73.0-121 2.21 20 <br />ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE: <br />ATC -San Ramon, CA 2048504278 L1427948 11/15/2115:54 15 01 21