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<br />Bedrock ground water aquifers have been identified as, the Wolf Creek coal <br />seam, the Wadge coal seam and the Wadge overburden including the discontinuous <br />Lennox coal seam. All aquifers exhibit water table conditions near the <br />outcrop, however, observation wells installed downdip indicate the aquifers <br />are all under artesian conditions with increased pressure related to increased <br />depth. Quality in all aquifers is poor and undesirable for use as either a <br />drinking or irrigation supply. <br />Ground water occurs in the alluvium associated with Hubberson Gulch within and <br />adjacent to the permit boundary. Quality of this water prohibits its use for <br />drinking and severely limits its use for irrigation. <br />The mine permit boundary encompasses two surface watersheds. Most of the mine <br />site and all the proposed disturbed areas will drain into Hubberson Gulch and <br />an unnamed tributary to Dry Creek. The numerous small drainages are ephemeral <br />in nature. Hubberson Gulch downstream of the mine site to its confluence with <br />Dry Creek is intermittent. A small area on the eastern edge of the permit <br />boundary drains to Sage Creek, an intermittant stream. As previously <br />discussed, there will be no disturbed area drainage directed to Sage Creek. <br />Both Sage Creek and Dry Creek confluence with the Yampa River near Hayden, <br />Colorado. <br />The average annual precipitation at the mine site is approximately 16 inches. <br />The precipitation is consistent throughout the year with no significant dry <br />periods. <br />The mean annual temperature is 42oF. The average maximum and minimum <br />temperatures are 66oF and 17oF respectively. <br />Regionally, wind directions run east-west following the Yampa River Valley. <br />More localized wind patterns trend along the side valleys. <br />The current and historic land use of the area in which the proposed operation <br />is located is grazing land for livestock and habitat for wildlife. Regional <br />land use patterns are oriented in three relatively distinct bands. Irrigated <br />cropland is closely associated with the floodplain of the Yampa River. To the <br />south, non-irrigated crops are grown on the sloping upland surfaces. The area <br />nearest the proposed mining operation is mostly hilly and mountainous terrain <br />and used primarily as rangeland for livestock grazing and wildlife habitat. <br />NO cropland will be disturbed by actual mining. <br />The soils found within and adjacent to the mine plan area are typical of soils <br />found in the cold, semi-arid regions of the Western United States. The soils <br />are generally moderately deep (20 to 40 inches) to shallow (10 to 20 inches) <br />and have developed in weathered, interbedded fine sandstone, siltstone, and <br />shale, and in local slopewash and colluvium. Most of the soils are Borollic <br />Vertic Camborthids, Lithic Cryoborolls, and Pachic Cryoborolls. <br />-$- <br />