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WG2598321 QUALITY CONTROL SUMMARY <br /> Chlorinated Acid Herbicides (GC) by Method 8151A L1895744-02 <br /> Method Blank (MB) Ed <br /> (MB)R4273625-1 09/15/2519:06 <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 84.8 14.0-158 <br /> Rn <br /> Laboratory Control Sample (LCS) <br /> (LCS)R4273625-2 09/15/2519:16 5Sr <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 0.0230 92.0 26.0-165 <br /> 2,4-D 0.0250 0.0223 89.2 10.0-200 <br /> (S)2,4-Dich/oropheny/Acetic <br /> Acid 89.6 14.0158 <br /> [Al <br /> L1895617-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) 9 <br /> (OS)L1895617-02 09/15/25 22:10•(MS)R4273625-3 09/15/25 22:20•(MSD)R4273625-4 09/15/25 22:30 SC <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 0.0242 0.0250 96.8 100 1 26.0-165 3.25 20 <br /> 2,4-D 0.0250 ND 0.0249 0.0257 99.6 103 1 10.0-200 3.16 20 <br /> (S)2,4-Dich/oropheny/Acetic 89.2 91.8 14.0-158 <br /> Acid <br /> ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE: <br /> UniFirst Corporation-Wilmington,MA UNIFIRST 370-CA L1895744 09/23/25 10:17 37 of 53 <br />