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predicted or developed in these units. The Rollins Sandstone is the exception <br />and, although it is usually 100 or more feet thick and is very extensive <br />laterally, yields from a well in the Rollins Sandstone would not be expected to <br />yield more than 25 to 50 gpm. The Rollins Sandstone is approximately 300- <br />350 feet stratigraphically below the proposed D seam workings. <br />Surface water information can be found in the permit in Section 2.04.5(1). In <br />addition, Volume 8 of the permit addressed a number of concerns expressed by the <br />Division during the first permit review with regard to potential impacts of the <br />operation on the surface water regime. Volume 9 of the permit contains post- <br />mining drainage profiles and cross sections of the disturbed area. <br />A description of surface water occurrence and mining impacts on surface water <br />within the permit and adjacent areas can be found in the "Probable Hydrologic <br />Consequences of Mining" section of this document and the "Cumulative Hydrologic <br />Impact Study" document for this mine area. <br />Surface drainage systems within or adjacent to the permit area are Ward Creek, <br />Williams Creek, Cottonwood Creek, Kiser Creek, Rowell Draw, and agricultural <br />irrigation systems. Both Ward and Williams Creek are calcium bicarbonate water <br />with low salinities (TDS ranging from 100-300 mg/1). <br />Geologv-Rule 2.04.5 and 2.04.6 <br />The geology sections in the permit application can be found in Section 2.09.5. <br />For a description of the geology of the area, refer to the "Probable Hydrologic <br />Consequences of Mining" section of this document. <br />Climatological Information-Rule 2.04.8 <br />The climatological information in the permit application can be found in <br />Section 2.09.8. <br />The Red Canyon Mine lies on the southern slope of Grand Mesa in a small box <br />canyon about 5 miles northwest from Cedaredge, Colorado. The closest climatic <br />data station is in Cedaredge at an elevation on 6200 feet. The climate is <br />considered semi-arid with an annual precipitation of 12-14 inches. <br />Soils-Rule 2.04.9 <br />Information on soil resources can be found in Section 2.04.9 of the permit. <br />The soil type in the 21-acre surface disturbance is a Beenom-Absarokee <br />Association which varies in depth from 5 inches along the side slopes to 12 <br />inches along the drainage bottom. Deeper, more productive soils have developed <br />along the major streams and in the "glacial-alluvial" deposits in the more level <br />uplands to the north and west of the surface disturbance area. Detailed analysis <br />of the soil was obtained from 55 representative sites throughout the area. Each <br />site is shown on the Soils Map, 2.04.9-1, contained in the permit. Soil samples <br />were taken in areas to gather information about refuse, topsoil, overburden, and <br />coal fines. Soils at the facilities area had been severely disturbed by previous <br />surface activity associated with underground mining. <br />6 <br />