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WG2599386 QUALITY CONTROL SUMMARY Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1895603-02 Method Blank (MB) (MB)R4274292-2 09/16/2511:01 Ed MB Result MB Qualifier MB MDL MB RDL PC Analyte mgA mgA mg/1 1,4-Dichlorobenzene U 0.0333 0.100 2,4-Dinitrotoluene U 0.0333 0.100 FS Hexachlorobenzene U 0.0333 0.100 Hexachloro-1,3-butadiene U 0.0333 0.100 Rn Hexachloroethane U 0.0333 0.100 Nitrobenzene U 0.0333 0.100 Pyridine U 0.0333 0.100 FSr 3&4-Methyl Phenol U 0.0333 0.100 2-Methylphenol U 0.0333 0.100 Pentachlorophenol U 0.0333 0.100 2,4,5-Trichlorophenol U 0.0333 0.100 2,4,6-Trichlorophenol U 0.0333 0.100 (S)2-Fluorophenol 40.6 10.0-120 7 G (S)Phenol-d5 23.6 10.0-120 (S)Nitrobenzene-d5 79.3 10.0-127 $AI (S)2-Fluorobiphenyl 83.6 10.0-130 (S)2,4,6-Tribromopheno/ 99.0 10.0-155 FSC (S)p-Terphenyl-d14 98.5 10.0-128 Laboratory Control Sample (LCS) (LCS)R4274292-1 09/16/2510:39 Spike Amount LCS Result LCS Rec. Rec.Limits LCS Qualifier Analyte mg/I mg/I % % 1,4-Dichlorobenzene 0.500 0.265 53.0 18.0-120 2,4-Dinitrotoluene 0.500 0.392 78.4 49.0-124 Hexachlorobenzene 0.500 0.361 72.2 44.0-120 Hexachloro-1,3-butadiene 0.500 0.252 50.4 19.0-120 Hexachloroethane 0.500 0.264 52.8 15.0-120 Nitrobenzene 0.500 0.254 50.8 27.0-120 Pyridine 0.500 0.131 26.2 10.0-120 3&4-Methyl Phenol 0.500 0.244 48.8 31.0-120 2-Methylphenol 0.500 0.227 45.4 28.0-120 Pentachlorophenol 0.500 0.304 60.8 23.0-120 2,4,5-Trichlorophenol 0.500 0.371 74.2 44.0-120 2,4,6-Trichlorophenol 0.500 0.374 74.8 42.0-120 (S)2-Fluorophenol 35.8 10.0-120 (S)Phenol-d5 23.3 10.0-120 (S)Nitrobenzene-d5 60.6 10.0-127 ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE: UniFirst Corporation-Wilmington,MA UNIFIRST 370-CA L1895603 09/23/25 10:16 48 of 53