2019-11-27_HYDROLOGY - M1977300 (5)

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ACZI-aboratories, Inc. 2773 Downhill Drive Steamboat Springs,CO 80487(800)334-5493 Alexco Water&Environmental Inc. ACZ Sample ID: L50186-01 Project ID: Schwarzwalder Mine Date Sampled: 02126119 09:15 Sample ID: SW-NWRP Date Received: 02/27/19 Sample Matrix: Surface Wafer Inorganic Prep Parameter EPA Method Dilution Result Qual XQ Units MDL PQL Date Analyff-I Cyanide,WAD SM4500-CN[-distillation 03/02/19 9:19 wtc Phosphorus,total M365.1 -Auto Ascorbic 03/07/19 12:49 ttg Acid Digestion Total Hot Plate M200.2 ICP-MS 03/01/19 13:46 rap Digestion Total Hot Plate M200.2 ICP 03/06/19 11:33 dcm Digestion Metals Analysis Parameter EPA Method Dilution Result Qual • Units MDL PQL Date Anally-0 Aluminum,dissolved M200 7 ICP 1 U mg/L 0.03 0.2 03/01/19 1.53 dcm Aluminum,total M200.7 ICP 1 0.05 B mg/L 0.03 0.2 03/07/19 19:57 dcm Antimony,dissolved M200.8 ICP-MS 1 U mg/L 0.0004 0 002 03/05/19 11:33 mfm Antimony,total M200.8 ICP-MS 1 U mg/L 00004 0.002 03/04/19 13:58 mfm Arsenic,dissolved M200.8 ICP-MS 1 U mg/L 0.0002 0.001 03/05/19 11:33 mfm Arsenic,total M200.8 ICP-MS 1 0.0003 B mg/L 0.0002 0.001 03/04/19 13:58 mfm Boron,dissolved M200.7 ICP 1 U mg/L 0.01 0.05 03/01/19 16:29 dcm Boron,total M200 7 ICP 1 U mg/L 0.01 0.05 03/08/19 14.41 dcm Calcium,dissolved M200.7 ICP 1 32.4 mg/L 0.1 0.5 03/01/19 1:53 dcm Chromium,dissolved M200.7 ICP 1 U mg/L 0.01 0.05 03/01/19 16:29 dcm Chromium,total M200.7 ICP 1 U mg/L 0.01 0.05 03/07/19 19:57 dcm Copper,dissolved M200.7 ICP 1 U mg/L 0.01 005 03/01/19 1:53 dcm Copper,total M200.7 ICP 1 U mg/L 0.01 0.05 03/07/19 19:57 dcm Iron,dissolved M200.7 ICP 1 0.19 mg/L 0.02 0.05 03/01/19 16:29 dcm Iron,total M200.7 ICP 1 0.80 mg/L 0.02 0.05 03/07/19 19.57 dcm Lead,dissolved M200.8 ICP-MS 1 U * mg/L 0.0001 0.0005 03/05/19 11:33 mfm Lead,total M200 8 ICP-MS 1 0.0002 B mg/L 00001 0.0005 03/04/19 13:58 mfm Magnesium,dissolved M200.7 ICP 1 9.2 mg/L 0.2 1 03/01/19 1:53 dcm Manganese,dissolved M200.7 ICP 1 0.029 B mg/L 0.005 0.03 03/04/19 18:26 dcm Manganese,total M200.7 ICP 1 0.190 mg/L 0.005 0.03 03/07/19 19:57 dcm Mercury,dissolved M245.1 CVAA 1 U * mg/L 0.0002 0.001 03/05/19 10:23 the Mercury,total M245.1 CVAA 1 U mg/L 0.0002 0.001 03/07/19 11:46 the Molybdenum,dissolved M200.7 ICP 1 U mg/L 0.02 0.1 03/01/19 1:53 dcm Molybdenum,total M200.7 ICP 1 U mg/L 0.02 0.1 03/07/19 19:57 dcm Potassium,dissolved M200.7 ICP 1 1.6 mg/L 0.2 1 03/01/19 1:53 dcm Silver,dissolved M200.8 ICP-MS 1 U mg/L 0.0001 0.0005 03/05/19 11:33 mfm Silver,total M200.8 ICP-MS 1 U mg/L 0.0001 0.0005 03/04/19 13:58 mfm Sodium,dissolved M200.7 ICP 1 16.0 mg/L 0.2 1 03/01/19 1:53 dcm Thallium,dissolved M200 8 ICP-MS 1 U * mg/L 0.0001 0.0005 03/05/19 11-33 mfm Thallium,total M200.8 ICP-MS 1 U mg/L 0.0001 0.0005 03/04/19 13:58 mfm Uranium,dissolved M200.8 ICP-MS 1 0.0099 mg/L 0.0001 0.0005 03/05/19 11:33 mfm Uranium,total M200.8 ICP-MS 1 0.0156 mg/L 0.0001 0.0005 03/04/19 13:58 mfm Zinc,dissolved M200.7 ICP 1 U mg/L 0.01 005 03/01/19 1:53 dcm Zinc,total M200.7 ICP 1 U mg/L 0.01 0.05 03/07/19 19:57 dcm REPIN.02 06.05.01 *Please refer to Qualifier Reports for details L50186-1909231419 Page 3 of 31