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WG2597103 QUALITY CONTROL SUMMARY <br /> Mercury by Method 7470A L1895603-03 <br /> Method Blank (MB) <br /> (MB)R4271437-1 09/10/2514:28 Ed <br /> MB Result MB Qualifier MB MDL MB RDL z <br /> Analyte mg/l mg/1 mg/1 TC <br /> Mercury U 0.000700 0.00200 <br /> 3 <br /> qS <br /> Laboratory Control Sample (LCS) <br /> Rn <br /> (LCS)R4271437-2 09/10/2514:36 <br /> Spike Amount LCS Result LCS Rec. Rec.Limits LCS Qualifier <br /> Analyte mg/I mg/I % % <br /> Mercury 0.00300 0.00279 93.0 80.0-120 [Sr <br /> L1895603-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) <br /> (OS)L1895603-03 09/10/2514:39•(MS)R4271437-4 09/10/2514:45•(MSD)R4271437-6 09/10/2514:48 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/1 mg/I mg/I mg/I % % % % % $AI <br /> Mercury 0.0300 ND 0.0287 0.0278 95.7 92.7 10 75.0-125 3.15 20 <br /> Fc <br /> ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE: <br /> UniFirst Corporation-Wilmington,MA UNIFIRST 370-CA L1895603 09/23/25 10:16 22 of 53 <br />