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<br /> <br /> <br /> <br /> 14 <br />irrigation and livestock. NTFM is active in preventing any water loss to North <br />Thompson Creek. <br />A. Surface and Ground Water Monitoring <br /> <br />The last remaining piezometers monitoring ground water were Phase III bond <br />released in bond release no. 6 (SL-6). No ground water monitoring program is <br />currently in effect. <br /> <br />The Division approved cessation of upstream and downstream water monitoring of <br />North Thompson Creek on June 29, 2018, with the approval of TR29. <br /> <br />B. Stream Buffer Zones <br /> <br />Pre-law surface or underground mining activities within 100 feet or through <br />perennial streams or streams with a biological community within the permit areas <br />were recognized in the PAP. The approved reclamation plans included restoration <br />of original stream channels, a requirement that water quality and quantity shall not <br />be adversely affected, and a requirement that appropriate riparian vegetation was to <br />be reestablished. Recognized pre-law areas of disturbance are at Portal 1 and <br />Portal 1 facilities areas, the underground workings beneath North Thompson Creek <br />and the conveyor over the Roaring Fork River. The coal mine waste pile and pond <br />and four water monitoring flumes were permitted (Rule 4.05.18(1)). The conveyor <br />over the Roaring Fork River was removed, reclaimed and fully bond released. The <br />water monitoring flumes in North Thompson Creek and Middle Thompson Creek <br />have been removed and reclaimed. <br /> <br />D. Probable Hydrologic Consequences <br /> <br />There is no known underground mine water discharge from North Thompson <br />Creek Mines in the Middle Thompson Creek drainage. There are no known <br />impacts to groundwater in the Middle Thompson Creek drainage from mining and <br />reclamation activities or to the Roaring Fork River from the loadout site. The load <br />out received Phase III bond release in November 1993 with the approval of SL-3. <br />The Load out area was removed from the permit area with the approval of TR-15 <br />in February 1994. <br /> <br />1) Ground Water <br /> <br />Current discharges indicate that both the North Thompson Creek No. 1 and No. 3 <br />Mines are experiencing mine inflows. The mine portal discharges represent a <br />redirection in the migration of groundwater from pre-mining conditions. Inflow <br />maps, descriptions of inflows and water quality analyses of inflows applicable to <br />periods of mining are within the PAP. The inflow water quality analyses indicate <br />that there may be at least two sources of water. The inflows with low total <br />dissolved solids (TDS) concentrations have water qualities similar to surface <br />waters. This suggests that these inflows may be transmitted directly to the mine