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WG2600506 QUALITY CONTROL SUMMARY Pesticides (GC) by Method 8081B L1895744-01 Laboratory Control Sample (LCS) (LCS)R4273999-2 09/15/25 22:49 C p Spike Amount LCS Result LCS Rec. Rec.Limits LCS Qualifier PC Analyte mg/kg mg/kg % % Endosulfan II 0.0666 0.0495 74.3 35.0-132 Endosulfan sulfate 0.0666 0.0482 72.4 35.0-132 FS Endrin 0.0666 0.0508 76.3 34.0-137 Endrin aldehyde 0.0666 0.0423 63.5 23.0-121 Rn Endrin ketone 0.0666 0.0486 73.0 35.0-144 Heptachlor 0.0666 0.0486 73.0 36.0-141 Heptachlor epoxide 0.0666 0.0496 74.5 36.0-134 FSr Hexachlorobenzene 0.0666 0.0486 73.0 33.0-129 Methoxychlor 0.0666 0.0514 77.2 28.0-150 (S)Decachlorobipheny/ 68.3 10.0-135 (S)Tetrochloro-m-xylene 73.4 10.0-139 �GI L1896774-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS)L1896774-01 09/16/25 01:14•(MS)R4273999-3 09/16/25 01:25•(MSD)R4273999-4 09/16/25 01:35 gAl Spike Amount Original Result MS Result MSD Result 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 0.0656 ND 0.0552 0.0515 84.1 78.5 1 20.0-135 6.94 37 Alpha BHC 0.0656 ND 0.0594 0.0561 90.5 85.5 1 27.0-140 5.71 35 Beta BHC 0.0656 ND 0.0530 0.0506 80.8 77.1 1 23.0-141 4.63 37 Delta BHC 0.0656 ND 0.0520 0.0505 79.3 77.0 1 21.0-138 2.93 35 Gamma BHC 0.0656 ND 0.0563 0.0532 85.8 81.1 1 27.0-137 5.66 36 4,4-DDD 0.0656 ND 0.0521 0.0491 79.4 74.8 1 15.0-152 5.93 39 4,4-DDE 0.0656 ND 0.0570 0.0533 86.9 81.3 1 10.0-152 6.71 40 4,4-DDT 0.0656 ND 0.0522 0.0481 79.6 73.3 1 10.0-151 8.18 40 Dieldrin 0.0656 ND 0.0533 0.0501 81.3 76.4 1 17.0-145 6.19 37 Endosulfan 1 0.0656 ND 0.0541 0.0510 82.5 77.7 1 20.0-137 5.90 36 Endosulfan 11 0.0656 ND 0.0510 0.0470 77.7 71.6 1 15.0-141 8.16 37 Endosulfan sulfate 0.0656 ND 0.0485 0.0449 73.9 68.4 1 15.0-143 7.71 38 Endrin 0.0656 ND 0.0551 0.0519 84.0 79.1 1 19.0-143 5.98 37 Endrin aldehyde 0.0656 ND 0.0418 0.0391 63.7 59.6 1 10.0-139 6.67 40 Endrin ketone 0.0656 ND 0.0480 0.0438 73.2 66.8 1 17.0-149 9.15 38 Heptachlor 0.0656 ND 0.0562 0.0531 85.7 80.9 1 22.0-138 5.67 37 Heptachlor epoxide 0.0656 ND 0.0538 0.0506 82.0 77.1 1 22.0-138 6.13 36 Hexachlorobenzene 0.0656 ND 0.0539 0.0510 82.2 77.7 1 25.0-126 5.53 35 Methoxychlor 0.0656 ND 0.0553 0.0513 84.3 78.2 1 10.0-159 7.50 40 (S)Decochlorobiphenyl 65.2 58.5 10.0-135 (S)Tetrachloro-m-xylene 79.0 73.5 10.0-139 ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE: UniFirst Corporation-Wilmington,MA UNIFIRST 370-CA L1895744 09/23/25 10:17 40 of 53