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WG2599254 QUALITY CONTROL SUMMARY Pesticides (GC) by Method 8081B L1895603-01 Laboratory Control Sample (LCS) (LCS)R4272954-2 09/12/25 23:07 C p Spike Amount LCS Result LCS Rec. Rec.Limits LCS Qualifier z Analyte mg/kg mg/kg % % TC Endosulfan II 0.0666 0.0691 104 35.0-132 Endosulfan sulfate 0.0666 0.0685 103 35.0-132 FS Endrin 0.0666 0.0627 94.1 34.0-137 Endrin aldehyde 0.0666 0.0585 87.8 23.0-121 Rn Endrin ketone 0.0666 0.0737 ill 35.0-144 Heptachlor 0.0666 0.0672 101 36.0-141 Heptachlor epoxide 0.0666 0.0665 99.8 36.0-134 FSr Hexachlorobenzene 0.0666 0.0590 88.6 33.0-129 Methoxychlor 0.0666 0.0728 109 28.0-150 (S)Decachlorobipheny/ 109 10.0-135 (S)Tetrochloro-m-xylene 91.9 10.0-139 �GI L1895702-18 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS)L1895702-18 09/13/25 00:27•(MS)R4272954-3 09/13/25 00:35•(MSD)R4272954-4 09/13/25 00:44 gAl Spike Amount Original Result MSD Result (dry) (dry) MS Result(dry) (dry) MS Rec. MSD Rec. Dilution Rec.Limits MS Qualifier MSD Qualifier RPD RPD Limits F Analyte mg/kg mg/kg mg/kg mg/kg % % % % % Aldrin 0.0748 ND 0.0629 0.0617 84.1 83.8 1 20.0-135 1.82 37 Alpha BHC 0.0748 ND 0.0683 0.0661 91.4 89.8 1 27.0-140 3.21 35 Beta BHC 0.0748 ND 0.0592 0.0572 79.2 77.7 1 23.0-141 3.51 37 Delta BHC 0.0748 ND 0.0635 0.0621 85.0 84.3 1 21.0-138 2.35 35 Gamma BHC 0.0748 ND 0.0667 0.0644 89.2 87.5 1 27.0-137 3.46 36 4,4-DDD 0.0748 ND 0.0693 0.0680 92.7 92.3 1 15.0-152 1.98 39 4,4-DDE 0.0748 ND 0.0611 0.0600 81.8 81.5 1 10.0-152 1.87 40 4,4-DDT 0.0748 ND 0.0685 0.0641 91.7 87.1 1 10.0-151 6.67 40 Dieldrin 0.0748 ND 0.0642 0.0634 85.9 86.1 1 17.0-145 1.24 37 Endosulfan 1 0.0748 ND 0.0636 0.0626 85.1 85.1 1 20.0-137 1.62 36 Endosulfan 11 0.0748 ND 0.0636 0.0627 85.1 85.2 1 15.0-141 1.44 37 Endosulfan sulfate 0.0748 ND 0.0666 0.0635 89.1 86.3 1 15.0-143 4.71 38 Endrin 0.0748 ND 0.0656 0.0635 87.7 86.3 1 19.0-143 3.16 37 Endrin aldehyde 0.0748 ND 0.0523 0.0509 70.0 69.2 1 10.0-139 2.64 40 Endrin ketone 0.0748 ND 0.0702 0.0666 93.9 90.4 1 17.0-149 5.31 38 Heptachlor 0.0748 ND 0.0723 0.0711 96.7 96.6 1 22.0-138 1.58 37 Heptachlor epoxide 0.0748 ND 0.0663 0.0640 88.6 86.9 1 22.0-138 3.48 36 Hexachlorobenzene 0.0748 ND 0.0587 0.0570 78.5 77.3 1 25.0-126 2.94 35 Methoxychlor 0.0748 ND 0.0906 0.0914 121 124 1 10.0-159 P P 0.872 40 (S)Decachlorobipheny/ 93.0 93.2 10.0-135 (S)Tetrochloro-m-xylene 79.5 77.3 10.0-139 ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE: UniFirst Corporation-Wilmington,MA UNIFIRST 370-CA L1895603 09/23/25 10:16 40 of 53