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#=QC# <br />QUALITY CONTROL DATA <br />Pace Project No.: <br />Project: <br />10650001 <br />B2204011.00-Revised Report <br />Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. <br />QC Batch: <br />QC Batch Method: <br />Analysis Method: <br />Analysis Description: <br />876659 <br />EPA 3050B <br />EPA 6020B <br />6020B Solids UPD5 <br />Laboratory: Pace Analytical Services - Minneapolis <br />Associated Lab Samples: 10650001001, 10650001002, 10650001003, 10650001004, 10650001005, 10650001006 <br />Parameter Units <br />Blank <br />Result <br />Reporting <br />Limit Qualifiers <br />METHOD BLANK: 4622737 <br />Associated Lab Samples:10650001001, 10650001002, 10650001003, 10650001004, 10650001005, 10650001006 <br />Matrix: Solid <br />AnalyzedMDL <br />Arsenic mg/kg <0.14 0.50 04/24/23 17:130.14 <br />Copper mg/kg <0.30 0.99 04/24/23 17:130.30 <br />Parameter Units <br />LCS <br />Result <br />% Rec <br />Limits Qualifiers% RecConc. <br />4622738LABORATORY CONTROL SAMPLE: <br />LCSSpike <br />Arsenic mg/kg 50.248.7 103 80-120 <br />Copper mg/kg 53.648.7 110 80-120 <br />Parameter Units <br />MS <br />Result <br />% Rec <br />Limits Qual% RecConc. <br />4622739MATRIX SPIKE & MATRIX SPIKE DUPLICATE: <br />MSSpike <br />Result <br />10649835001 <br />4622740 <br />MSD <br />Result <br />MSD <br />% Rec RPD RPD <br />Max <br />MSDMS <br />Spike <br />Conc. <br />Arsenic mg/kg 51.6 101 75-125102 1 2051.63.2 55.2 56.0 <br />Copper mg/kg 51.6 115 75-125109 4 2051.616.5 75.6 72.6 <br />REPORT OF LABORATORY ANALYSIS <br />This report shall not be reproduced, except in full, <br />without the written consent of Pace Analytical Services, LLC.Date: 05/02/2023 11:28 AM <br />Pace Analytical Services, LLC <br />1700 Elm Street <br />Minneapolis, MN 55414 <br />(612)607-1700 <br />Page 14 of 24