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5. The Division approved the Applicant's plan for disposal of debris, acid - forming or <br />toxic materials, or materials constituting a fire hazard in a manner designed to prevent <br />contamination of ground or surface waters. A contingency plan has also been developed <br />to prevent sustained combustion of flammable materials [Rule 4.14.3(l)(a)]. <br />6. The Division approved the method and design specifications for covering of acid -and <br />toxic - forming materials in order to prevent leaching into surface and ground water and to <br />ensure backfill stability Rule 4.14.3(2)]. <br />XIIL Revegetation - Rule 4.15 <br />The Permit was found to be in compliance with Rule 4.15 with one Stipulation. <br />STIPULATION 2 <br />PRIOR TO DISTURBING ANY LANDS IN THE LOWER WILSON AREA, THE <br />COLOWYO COAL COMPANY SHALL PROVIDE THE DIVISION WITH A PERMIT <br />REVISION CONTAINING A MINE PLAN AND A RECLAMATION PLAN AND ANY <br />ADDITIONAL BASELINE MONITORING INFORMATION (SURFACE WATER, GROUND <br />WATER, SOILS, VEGETATION, ETC.) REQUESTED BY THE DIVISION. THE <br />APPROVAL OF PERMIT REVISION 02 IS ONLY AN APPROVAL FOR DISTURBANCE <br />IN THE SOUTH TAYLOR PIT (SOUTH TAYLOR PIT, WEST VALLEY FILL, EAST <br />VALLEY FILL AND ASSOCIATED STRUCTURES). NO DISTURBANCE IS APPROVED <br />FOR THE LOWER WILSON AREA WITH THE APPROVAL OF PERMIT REVISION 02. <br />A. Baseline Vegetation Information <br />Baseline vegetation information is found in Section 2.04.10, Exhibit 10 and Maps 3 and 4 of the <br />Permit. A summary of this information is found in the Summary section of this document, <br />"Description of the Environment." Baseline information specific to the PR -2 Lower Wilson and <br />South Taylor expansion areas is presented in Section 2.04. 10 text, Tables 2.04.10 -7 through <br />2.04.10 -32, and Figures 2.04.10 -5 through 2.04.10 -10 of Volume 12. Baseline information <br />specific to PR -03 Collom expansion is found in Section 2.04.10, Table 2.04.10 -33 through Table <br />2.04.10 -76, Table 2.04.11 -20 & 21, Volume 15, Exhibit 10, Item 6, Volume 20, and Map 4C <br />(sheets 1 to 11) in Volume 21. <br />Six major vegetation community types were identified within the Collom expansion area: Aspen, <br />Bottomland, Grassland, Juniper scrub, Mountain shrub and Sagebrush. Four minor community <br />types were also identified in the expansion area: Improved pasture, Cultivated land (cropland), <br />Disturbed area, and wetlands. Mountain Shrub is the dominant community in the Collom <br />expansion area, with lesser but significant acreages of Sagebrush and Aspen Woodland <br />communities. <br />Colowyo Coal Mine C1981 -019 PR -03 60 April 10, 2013 <br />