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=41 McCampbell Analytical, Inc. <br />ssmi4i "When Quality Counts" <br />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 <br /> <br />Quality Control Report <br />Client: <br />Date Prepared: <br />Date Analyzed: <br />Instrument: <br />Matrix: <br />Project: <br />Castle Analytical Laboratory <br />07/28/2020 <br />07/29/2020 <br />ICP-MS5 <br />Water <br />2007093/ Mizkan DRT 3297 / DRT 1026 <br />WorkOrder: <br />BatchID: <br />Extraction Method: <br />Analytical Method: <br />Unit: <br />Sample ID: <br />2007D44 <br />202653 <br />E200.8 <br />E200.8 <br />pg/L <br />MB/LCS/LCSD-202653 <br />2007D44-001EMS/MSD <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 />Arsenic ND 0.790 2.50 <br />Cadmium ND 0.360 2.50 <br />Chromium ND 1.00 2.50 <br />Copper ND 2.30 2.50 <br />Lead ND 1.00 2.50 <br />Mercury ND 0.100 0.250 <br />Nickel ND 0.840 2.50 <br />Silver ND 0.260 2.50 <br />Zinc ND 19.0 25.0 <br />Surrogate Recovery <br />Terbium 2740 2500 109 70-130 <br />(Cont.) <br />CA ELAP 1644 • NELAP 40330RELAP <br />Page 23 of 30