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WG2596492 QUALITY CONTROL SUMMARY <br /> Volatile Organic Compounds (GC/MS) by Method 8260D L1895603-01 <br /> Method Blank (MB) <br /> (MB)R4272526-3 09/10/2522:13 Ed <br /> MB Result MB Qualifier MB MDL MB RDL PC <br /> Analyte mg/kg mg/kg mg/kg <br /> p-Isopropyltoluene U 0.00213 0.00500 <br /> 2-Butanone(MEK) U 0.0887 0.100 FS <br /> Methylene Chloride U 0.0110 0.0250 <br /> 4-Methyl-2-pentanone(MIBK) U 0.00992 0.0250 Rn <br /> Methyl tert-butyl ether U 0.000773 0.00100 <br /> Naphthalene U 0.00763 0.0125 <br /> n-Propylbenzene U 0.00169 0.00500 FSr <br /> Styrene U 0.00445 0.0125 <br /> 1,1,1,2-Tetrachloroethane U 0.00130 0.00250 <br /> 1,1,2,2-Tetrachloroethane U 0.00116 0.00250 <br /> 1,1,2-Trichlorotrifluoroethane U 0.00281 0.00500 <br /> Tetrachloroethene U 0.00152 0.00250 7Gl <br /> Toluene U 0.00289 0.00500 <br /> 1,2,3-Trichlorobenzene U 0.00699 0.0125 <br /> 1,2,4-Trichlorobenzene U 0.00542 0.0125 $Al <br /> 1,1,1-Trichloroethane U 0.00145 0.00250 <br /> 1,1,2-Trichloroethane U 0.00134 0.00250 FC <br /> Trichloroethene U 0.000891 0.00100 <br /> Trichlorofluoromethane U 0.00261 0.00400 <br /> 1,2,3-Trichloropropane U 0.00612 0.0125 <br /> 1,2,4-Trimethylbenzene U 0.00238 0.00500 <br /> 1,2,3-Trimethylbenzene U 0.00182 0.00500 <br /> 1,3,5-Trimethylbenzene U 0.00228 0.00500 <br /> Vinyl chloride U 0.00201 0.00250 <br /> Xylenes,Total U 0.00280 0.00650 <br /> (S)Toluene-d8 106 75.0-131 <br /> (S)4-Bromofluorobenzene 98.0 67.0-138 <br /> (S)1,2-Dichloroethone-d4 85.4 70.0-130 <br /> Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) <br /> (LCS)R4272526-1 09/10/2519:03•(LCSD)R4272526-2 09/10/2519:23 <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 3.13 3.26 3.25 104 104 10.0-160 0.307 31 <br /> Acrylonitrile 3.13 3.11 2.81 99.4 89.8 45.0-153 10.1 22 <br /> Benzene 0.625 0.667 0.626 107 100 70.0-123 6.34 20 <br /> Bromobenzene 0.625 0.664 0.623 106 99.7 73.0-121 6.37 20 <br /> Bromodichloromethane 0.625 0.595 0.658 95.2 105 73.0-121 10.1 20 <br /> ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE: <br /> UniFirst Corporation-Wilmington,MA UNIFIRST 370-CA L1895603 09/23/25 10:16 30 of 53 <br />