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1534 Willow Pass Road, Pittsburg, CA 94565-1701 <br />_ M c C a m p b e I l Analytical, Inc. Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 <br />"When Quality Counts" http://www.mccatnpbell.com / E-mail: main@mccampbell.com <br />Client: <br />Date Prepared: <br />Date Analyzed: <br />Instrument: <br />Matrix: <br />Project: <br />Quality Control Report <br />Fremouw Environmental Services, Inc. WorkOrder: 1812236 <br />12/6/18 BatchID: 169550 <br />12/7/18 Extraction Method: E200.8 <br />ICP-MS3 Analytical Method: E200.8 <br />Water Unit: µg/L <br />Pick N Pull/ Stockton Sample ID: MB/LCS/LCSD-169550 <br />1812236-001 DMS/MSD <br />QC Report for Metals (>1% <br />Sediment Content) <br />Analyte <br />MB <br />Result <br />RL <br />SPK MB SS MB SS <br />Val %REC Limits <br />Antimony <br />Arsenic <br />Barium <br />ND <br />ND <br />ND <br />2.5 <br />2.5 <br />25 <br />- - <br />- - <br />- - - <br />Beryllium <br />ND <br />2.5 <br />- - - <br />Cadmium <br />ND <br />2.5 <br />- - - <br />Chromium <br />ND <br />2.5 <br />- - - <br />Cobalt <br />ND <br />2.5 <br />- - - <br />Copper <br />ND <br />5.0 <br />- - - <br />Lead <br />ND <br />2.5 <br />- - - <br />Mercury <br />ND <br />0.25 <br />- - - <br />Molybdenum <br />ND <br />2.5 <br />- - - <br />Nickel <br />ND <br />2.5 <br />- - - <br />Selenium <br />ND <br />2.5 <br />- - - <br />Silver <br />ND <br />2.5 <br />- - - <br />Thallium <br />ND <br />2.5 <br />- - - <br />Vanadium <br />ND <br />2.5 <br />- - - <br />Zinc <br />ND <br />25 <br />- - - <br />Surrogate Recovery <br />Terbium <br />2600 <br />2500 105 70-130 <br />(Cont.) <br />Page 9 of 17 <br />