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ONE LAB. NATIONWIDE. 111 QUALITY CONTROL SUMMARY <br />L1280736-01 <br />WG1570681 <br />Mercury by Method 7471A <br />ACCOUNT: <br />UPRR - Patriot Environmental Services <br />SDG: DATE/TIME: PAGE: <br />L1280736 11/12/2014:37 11 of 23 <br />PROJECT: <br />11-20-00650 <br />Method Blank (MB) <br />(MB) R3589705-1 11/05/20 09:55 <br />MB Result MB Qualifier MB MDL MB RDL <br />Analyte mg/kg mg/kg mg/kg <br />Mercury U 0.0180 0.0400 <br />'Ss <br />4 <br />Cn <br />Sr <br />6 <br />Qc <br />7 G1 <br />Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits <br />20 <br />Al <br />75.0-125 7.03 <br />9 <br />SC <br />Laboratory Control Sample (LCS) <br />(LCS) R3589705-2 11/05/20 09:58 <br />Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier <br />Analyte mg/kg mg/kg <br />Mercury 0.500 0.515 103 80.0-120 <br />L1280016-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) <br />(OS) L1280016-01 11/05/20 10:00 • (MS) R3589705-3 11/05/20 10:03 • (MSD) R3589705-4 11/05/20 10:05 <br />Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution <br />Analyte mg/kg mg/kg mg/kg mg/kg <br />Mercury 0.500 U 0.470 0.439 94.1 87.7 1 <br />1 Cp <br />Tc