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Disturbance of soils and vegetation during the mine <br />• operation will be minimized. The inherent advantages to <br />underground mining will be utilized to minimize these <br />disturbances. Surface structures and facilities associated <br />with the Golden Eagle Mine do not occupy a significant portion <br />of the total affected area. In addition, subsidence of the <br />surface is controlled to ensure that these environmental <br />resources are not affected. <br />During the collection and preparation of data to show <br />the existing environmental resources at and surrounding the <br />Golden Eagle Mine, Basin has not encountered any threatened or <br />endangered species of plants or animals which will be affected <br />by the Golden Eagle mine operation. Bald eagles have been <br />reported in the vicinity, but there are no known active or <br />inactive eagle nests in the mine affected area or its immediate <br />surrounding areas. Therefore, no impact to threatened or <br />endangered species is expected. <br />• <br />The habitat associated with the Purgatoire River and its <br />surrounding areas will be protected by Basin Resources within <br />the current plan. <br />Protection of Hvdrological Balance <br />Probable Hydrologic Conseouences Overview -Mining of the Golden <br />Eagle Mine will affect the surface and ground water regime to <br />varying degrees in different ways, depending on whether one is <br />looking at the situation during mining, or the situation <br />following the end of mining. There will be both quantitative <br />and qualitative changes in the hydrologic regime. <br />During mining, impacts to ground water will include the pumping <br />of mine inflows which will dewater the coal aquifer and may <br />• dewater other water bearing zones in the overburden aquifer. <br />2.05-34 (Revised 04/27/94) <br />