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WG2596075 QUALITY CONTROL SUMMARY <br /> Chlorinated Acid Herbicides (GC) by Method 8151A L1895603-02 <br /> Method Blank (MB) <br /> (MB)R4272758-1 09/12/2515:46 Ed <br /> MB Result MB Qualifier MB MDL MB RDL PC <br /> Analyte mgA mg/1 mgA <br /> 2,4,5-TP(Silvex) U 0.000667 0.00200 <br /> 2,4-D U 0.000667 0.00200 E <br /> (S)2,4-Dich/oropheny/Acetic <br /> Acid 94.4 14.0-158 <br /> Rn <br /> Laboratory Control Sample (LCS) <br /> (LCS)R4272758-2 09/12/2515:56 5 S r <br /> Spike Amount LCS Result LCS Rec. Rec.Limits LCS Qualifier <br /> Analyte mg/1 mg/I % <br /> 2,4,5-TP(Silvex) 0.0250 0.0244 97.6 50.0-125 <br /> 2,4-D 0.0250 0.0266 106 50.0-120 <br /> (S)2,4-Dich/oropheny/Acetic <br /> Acid 99.2 14.0 158 <br /> [Al <br /> L1894520-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) <br /> (OS)L1894520-02 09/12/25 21:34•(MS)R4272758-3 09/12/25 21:44•(MSD)R4272758-4 09/12/25 21:54 9SC <br /> Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec.Limits MS Qualifier MSD Qualifier RPD RPD Limits <br /> Analyte mg/1 mg/I mg/1 mg/1 % % % % % <br /> 2,4,5-TP(Silvex) 0.0250 ND 0.0226 0.0253 90.4 101 1 50.0-125 11.3 20 <br /> 2,4-D 0.0250 ND 0.0325 0.0312 130 125 1 50.0-120 J5 J5 P 4.08 20 <br /> (S)2,4-Dich/oropheny/Acetic 123 123 14.0-158 <br /> Acid <br /> ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE: <br /> UniFirst Corporation-Wilmington,MA UNIFIRST 370-CA L1895603 09/23/25 10:16 35 of 53 <br />