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ENERGY Trust our People.Trust our Data. Billings,Mt 800.735.4489•Casper.WY 888.235.0515 <br /> www energylab.com Gillette.WY 866.686.7175• Helena,MT 817.412.0111 <br /> QA/QC Summary Report <br /> Prepared by Billings, MT Branch <br /> Client: Nederland Mining Consultants Work Order: B20021855 Report Date: 03/11/20 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E200.8 Batch: 142275 <br /> Lab ID: B20021855-001DMSD 7 Sample Matrix Spike Duplicate Run: ICPMS208-B_200302A 03/02/20 22:37 <br /> Lead 0.0982 mg/L 0.0010 96 70 130 0.6 20 <br /> Zinc 0.133 mg/L 0.010 101 70 130 0.1 20 <br /> Method: E200.8 Batch:R337254 <br /> Lab ID: LRB 10 Method Blank Run:ICPMS208-B 200302A 03/02/20 15:12 <br /> Arsenic ND mg/L 0.00005 <br /> Cadmium ND mg/L 0.00002 <br /> Chromium ND mg/L 0.0001 <br /> Copper ND mg/L 0.0003 <br /> Lead ND mg/L 0.00003 <br /> Manganese ND mg/L 0.00004 <br /> Nickel ND mg/L 0.0001 <br /> Selenium ND mg/L 0.00002 <br /> Silver ND mg/L 0.00003 <br /> Zinc ND mg/L 0.002 <br /> Lab ID: LFB 10 Laboratory Fortified Blank Run: ICPMS208-B_200302A 03/02/20 15:28 <br /> Arsenic 0.0498 mg/L 0.0050 100 85 115 <br /> Cadmium 0.0494 mg/L 0.0010 99 85 115 <br /> Chromium 0.0503 mg/L 0.010 101 85 115 <br /> Copper 0.0489 mg/L 0.010 98 85 115 <br /> Lead 0.0500 mg/L 0.010 100 85 115 <br /> Manganese 0.0507 mg/L 0.010 101 85 115 <br /> Nickel 0.0514 mg/L 0.010 103 85 115 <br /> Selenium 0.0501 mg/L 0.0050 100 85 115 <br /> Silver 0.0192 mg/L 0.0050 96 85 115 <br /> Zinc 0.0508 mg/L 0.010 101 85 115 <br /> Lab ID: MB-142263 10 Method Blank Run: ICPMS208-B 200302A 03/02/20 19:18 <br /> Arsenic ND mg/L 0.00005 <br /> Cadmium ND mg/L 0.00002 <br /> Chromium ND mg/L 0.0001 <br /> Copper 0.003 mg/L 0.0003 <br /> Lead 0.00003 mg/L 0.00003 <br /> Manganese 0.00005 mg/L 0.00004 <br /> Nickel ND mg/L 0.0001 <br /> Selenium 0.00005 mg/L 0.00002 <br /> Silver ND mg/L 0.00003 <br /> Zinc 0.002 mg/L 0.002 <br /> Lab ID: B20021852-002AMS 10 Sample Matrix Spike Run: ICPMS208-B_200302A 03/02/20 22:13 <br /> Arsenic 0.100 mg/L 0.0010 99 70 130 <br /> Cadmium 0.0972 mg/L 0.0010 97 70 130 <br /> Chromium 0.0996 mg/L 0.0050 99 70 130 <br /> Copper 0.122 mg/L 0.0050 99 70 130 <br /> Lead 0.0966 mg/L 0.0010 96 70 130 <br /> Qualifiers: <br /> RL-Analyte Reporting Limit ND-Not detected at the Reporting Limit(RL) <br /> Page 9 of 13 <br />