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WG2596492 QUALITY CONTROL SUMMARY Volatile Organic Compounds (GC/MS) by Method 8260D L1895603-01 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) C (LCS)R4272526-1 09/10/2519:03•(LCSD)R4272526-2 09/10/2519:23 p Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec.Limits LCS Qualifier LCSD Qualifier RPD RPD Limits z Analyte mg/kg mg/kg mg/kg % % % % % TC Naphthalene 0.625 0.371 0.388 59.4 62.1 59.0-130 4.48 20 n-Propylbenzene 0.625 0.709 0.650 113 104 74.0-126 8.68 20 FS Styrene 0.625 0.637 0.621 102 99.4 72.0-127 2.54 20 1,1,1,2-Tetrachloroethane 0.625 0.680 0.659 109 105 74.0-129 3.14 20 Rn 1,1,2,2-Tetrachloroethane 0.625 0.573 0.505 91.7 80.8 68.0-128 12.6 20 1,1,2-Trichlorotrifluoroethane 0.625 0.799 0.766 128 123 61.0-139 4.22 20 Tetrachloroethene 0.625 0.726 0.701 116 112 70.0-136 3.50 20 FSr Toluene 0.625 0.665 0.636 106 102 75.0-121 4.46 20 1,2,3-Trichlorobenzene 0.625 0.485 0.459 77.6 73.4 59.0-139 5.51 20 1,2,4-Trichlorobenzene 0.625 0.596 0.546 95.4 87.4 62.0-137 8.76 20 1,1,1-Trichloroethane 0.625 0.704 0.681 113 109 69.0-126 3.32 20 1,1,2-Trichloroethane 0.625 0.618 0.592 98.9 94.7 78.0-123 4.30 20 7G1 Trichloroethene 0.625 0.747 0.744 120 119 76.0-126 0.402 20 Trichlorofluoromethane 0.625 0.743 0.781 119 125 61.0-142 4.99 20 1,2,3-Trichloropropane 0.625 0.565 0.495 90.4 79.2 67.0-129 13.2 20 $AI 1,2,4-Trimethylbenzene 0.625 0.681 0.630 109 101 70.0-126 7.78 20 1,2,3-Trimethylbenzene 0.625 0.668 0.639 107 102 74.0-124 4.44 20 Fc 1,3,5-Trimethylbenzene 0.625 0.689 0.635 110 102 73.0-127 8.16 20 Vinyl chloride 0.625 0.640 0.710 102 114 63.0-134 10.4 20 Xylenes,Total 1.88 1.98 1.91 105 102 72.0-127 3.60 20 (S)Toluene-dB 98.8 97.4 75.0-131 (S)4-Bromofluorobenzene 91.2 91.3 67.0-138 (S)1,2-Dichloroethone-d4 96.2 96.6 70.0-130 ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE: UniFirst Corporation-Wilmington,MA UNIFIRST 370-CA L1895603 09/23/25 10:16 32 of 53