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Anticline, a major oil-producing area located several miles east of the permit <br />• area. Other major folds in the area are the Wolf Creek Dome, the Chimney Creek <br />Dome, the Williams Park Anticline, and Twentymile Park. The areal structure has <br />also been modified by numerous faults, which are shown on Map 4. <br />Several Upper Cretaceous geologic formations crop out in the area. They <br />are, in ascending order, the Mancos shale, the Iles formation, the Williams Fork <br />formation, and the Lewis shale. <br />The Iles and Williams Fork formations comprise the Mesaverde group and con- <br />tain the lower Mesaverde coals and the middle and upper Mesaverde coals, respec- <br />tively. The coal from the mined out area was located within the Iles formation. <br />In addition, none of the described formations are listed as potential aquifers <br />within the permit area. <br />• Quaternary alluvial deposits in the Yampa River and small tributaries are <br />the main sources of water in the area. Additional water resources are available <br />where ephemeral streams have been dammed to provide water for livestock. <br />The locations and information concerning appropriated and adjudicated water <br />rights in the Meadows No. I mine area were obtained from the Colorado State <br />Engineer office, Division of Water Resources. Table 2.04.5-I shows a compila- <br />tion of the information. Locations were field verified in the immediate vicin- <br />ity of the Meadows No. 1 mine. <br />In the mine disturbed area, no subsurface water was encountered in any of <br />the more than 40 drill holes within the permit area (Map 4A). However, as is <br />implied elsewhere in the application, subsurface water was encountered in <br />drilling other properties controlled by Sun Coal in the vicinity of the <br />~ J <br />- 60 - (Rev. 5/86) <br />