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Ourav Silver Mines Inc. Table 2 <br /> Technical Revision 11 <br /> Table 2. Sampling Frequency, Field Parameters for Sampling Locations <br /> Laboratory <br /> Station ID Station Type Status Sampling Frequency Paramter List Field Parameters <br /> SW-1 <br /> SW-2 <br /> SW-3 <br /> pH,Temperature, Specific Conductivity, Oxidation <br /> SW-4 Surface Water Voluntary Voluntary Surface Water <br /> Reduction Potential, Dissolved Oxygen, Flow Rate <br /> SW-15 <br /> SW-16 <br /> SW-17 <br /> GW-1A <br /> GW 1B Quarterly <br /> GW-2A <br /> GW-2B Groundwater Required Quarterly Groundwater pH,Temperature, Depth to Groundwater <br /> GW-3R <br /> GW-3B <br /> GW-4 Quarterly2 <br /> UG-1 Voluntary Inactive <br /> UG-2 Required Quarterly3 <br /> UG-3 Voluntary Inactive <br /> UG-4 Required Annual <br /> UG-5 Required Quarterly <br /> UG-6 Mine Water Voluntary Inactive Groundwater pH,Temperature, Flow Rate, Oil and Grease Visual <br /> UG-7 Voluntary Voluntary <br /> UG-8 Required Quarterly3 <br /> UG-9 Voluntary Voluntary <br /> UG-10 Required Annual <br /> Notes: <br /> 1. No sampling required until the Atlas Tailing Facility is disturbed. Quarterly sampling required thereafter per Nov. 13, 2015 communication. <br /> 2. Quarterly once constructed <br /> 3. Annual sampling until mine production begins. Quarterly sampling required thereafter. <br /> Page 1 3/26/2020 <br />