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WG2597241 QUALITY CONTROL SUMMARY <br /> Mercury by Method 7471E L1895603-01 <br /> Method Blank (MB) <br /> (MB)R4271355-1 09/10/2511:04 Cp <br /> MB Result MB Qualifier MB MDL MB RDL z <br /> Analyte mg/kg mg/kg mg/kg TC <br /> Mercury U 0.0206 0.0400 <br /> 3 <br /> qS <br /> Laboratory Control Sample (LCS) <br /> Rn <br /> (LCS)R4271355-2 09/10/2511:06 <br /> Spike Amount LCS Result LCS Rec. Rec.Limits LCS Qualifier <br /> Analyte mg/kg mg/kg % % <br /> Mercury 0.500 0.492 98.4 80.0-120 [Sr <br /> L1895676-08 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) <br /> (OS)L1895676-08 09/10/2511:09•(MS)R4271355-4 09/10/2511:14•(MSD)R4271355-5 09/10/2511:22 7G1 <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/kg mg/kg mg/kg mg/kg % % % % % $AI <br /> Mercury 0.500 ND 0.522 0.522 104 104 1 75.0-125 0.0598 20 <br /> Fc <br /> ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE: <br /> UniFirst Corporation-Wilmington,MA UNIFIRST 370-CA L1895603 09/23/25 10:16 23 of 53 <br />