2020-03-19_INSPECTION - M1977410

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7;f, (iiiTrust our People.Trust our Data Sittings.MT 880.735.4489-Casper.WY 888.235.0515 Gillette.WY 866.888.7175 .Helena,MT 877.472.0711 QA/QC Summary Report Prepared by Billings, MT Branch Client: Nederland Mining Consultants Work Order. B20020969 Report Date: 02/26/20 I Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual Method: E200.7 Analytical Run:ICP204-B_200218A Lab ID: ICV 5 Continuing Calibration Verification Standard 02/18/20 16:05 Calcium 25.8 mg/L 1.0 103 95 105 Magnesium 26.2 mg/L 1.0 105 95 105 Potassium 26.3 mg/L 1.1 105 95 105 Sodium 26.4 mg/L 1.0 105 95 105 Zinc 2.48 mg/L 0.010 99 95 105 Method: E200.7 Batch:R335580 Lab ID: MB-7400DIS200218A 5 Method Blank Run:ICP204-B_200218A 02/18/20 14:02 Calcium ND mg/L 0.08 Magnesium ND mg/L 0.02 Potassium ND mg/L 0.4 Sodium ND mg/L 0.06 Zinc ND mg/L 0.003 Lab ID: LFB-7400131S200218A 5 Laboratory Fortified Blank Run:ICP204-B_200218A 02/18/20 14:11 Calcium 51.9 mg/L 1.0 104 85 115 Magnesium 51.8 mg/L 1.0 104 85 115 Potassium 51.8 mg/L 1.0 104 85 115 Sodium 51.8 mg/L 1.0 104 85 115 Zinc 0.963 mg/L 0.010 96 85 115 Lab ID: 820020977-003BMS2 5 Sample Matrix Spike Run:ICP204-B_200218A 02/18/20 17:43 Calcium 244 mg/L 1.0 97 70 130 Magnesium 242 mg/L 1.0 97 70 130 Potassium 241 mg/L 1.9 96 70 130 Sodium 241 mg/L 1.5 96 70 130 Zinc 4.84 mg/L 0.016 93 70 130 Lab ID: B20020977-003BMSD 5 Sample Matrix Spike Duplicate Run:ICP204-B_200218A 02/18/20 17:56 Calcium 244 mg/L 1.0 97 70 130 0.0 20 Magnesium 242 mg/L 1.0 96 70 130 0.4 20 Potassium 240 mg/L 1.9 96 70 130 0.3 20 Sodium 238 mg/L 1.5 95 70 130 1.0 20 Zinc 4.82 mg/L 0.016 93 70 130 0.5 20 Lab ID: MB-141902 5 Method Blank Run:ICP204B 200218A 02/18/20 18:08 Calcium ND mg/L 0.08 Magnesium ND mg/L 0.02 Potassium ND mg/L 0.4 Sodium ND mg/L 0.06 Zinc ND mg/L 0.003 Qualifiers: RL-Analyte Reporting Limit ND-Not detected at the Reporting Limit(RL) Page 3 of 8