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Quality Control Report <br />McCampbell Analytical, Inc.1534 Willow Pass Road, Pittsburg, CA 94565-1701 <br />Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 <br />http://www.mccampbell.com / E-mail: main@mccampbell.com"When Quality Counts" <br />Client:AdvancedGeo, Inc. <br />Project:S.J. Cogen <br />Date Analyzed:06/29/2020 <br />Date Prepared:06/26/2020 - 06/27/2020 <br />WorkOrder:2006B65 <br />BatchID:200794 <br />Analytical Method:E200.8 <br />Unit:µg/L <br />Sample ID:MB/LCS/LCSD-200794 <br />2006B65-032BMS/MSD <br />Instrument:ICP-MS5 <br />Matrix:Water <br />Extraction Method:E200.8 <br />QC Report for Metals (>1% Sediment Content) <br />Analyte MB <br />Result <br />MDL RL SPK <br />Val <br />MB SS <br />%REC <br />MB SS <br />Limits <br />Lead ND 1.00 2.50 --- <br />Surrogate Recovery <br />Terbium 2490 2500 100 70-130 <br />Analyte LCS <br />Result <br />LCSD <br />Result <br />SPK <br />Val <br />LCS <br />%REC <br />LCSD <br />%REC <br />LCS/LCSD <br />Limits <br />RPD RPD <br />Limit <br />Lead 223 246 250 89 98 85-115 9.86 20 <br />Surrogate Recovery <br />Terbium 2560 2580 2500 102 103 70-130 0.643 20 <br />Analyte MS <br />Result <br />MSD <br />Result <br />SPK <br />Val <br />SPKRef <br />Val <br />MS <br />%REC <br />MSD <br />%REC <br />MS/MSD <br /> Limits <br />RPD RPD <br />Limit <br />MS <br />DF <br />Lead 2800 2730 2500 368.8 97 95 85-115 2.59 201 <br />Surrogate Recovery <br />Terbium 25,200 25,500 250001 101 102 70-130 1.27 20 <br />Page 60 of 87