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~, 1 - • • PRELIt97NARY ADEOUA(.'Y f?EVIEW Grand Mesa Coal Company - Rerl Canyon Mine Mau 8. 1981 2.03 Legal and Financial Requirements I. Rule 2.03.4(4) requires a statement of any current or previously held coal mining permits. Since Crand Mesa currently bolds a permit, it should be indicated along with any prior permits. 2.09.3 General Requirements: Site Description and Land Use Information I. Rule 2. 04.3(2)(a) requires a narrative of the existing land uses. A more detailed description should be provided relative to the information provided on the Land use map. The applicant should indicate whether areas designated as farmland are dryland or irrigated and specify what crops are grown. It i5 assumed that portions of the permit area not designated as farmland or pastureland are rangeland. A brief discussion regarding the seasonal use of the area by wildlife and Livestock (if any) should be provided. 2. Rule 2.09.3(2)(b) requires an estimate of the productivity of those areas affected or to be affected by surface operations before any mining. SCS range site productivity in formation would be sufficient. 2.04.9 Cultural Resources Information Appropriate sections have been forwarded to the State historical Preservation Office. 2.09.6 Geology Description 1. The nature of the coal and interburden of the seams to he mined should be discussed in further detail. The Local fracturing, cleating, and the presence of stringers should be mentioned in the plan. A general geologic description of the Iles formation of the Mesa Verde Group should be provided. 2. Dri1Z core data has been submitted for only one test bole (NCE-80-3C). Lithologic Logs for all drill holes used in the preparation of the geologic cross-sections should be submitted with the plan. 3. Additional cross-sections, as required by 2.09.6(2)(a)(.ii) arc needed to characCerize Che geology of the entire permit .arch. Arc.~s of potential. influence to the alluvial aquifers should be dcl.incated wiCh East-West cross-sections. The portion of the mine in Sections 12 and 13 should be covered with a North-South cross-section. 4. A listing of reserves for the D seam within coal Lease D-036906, including in-place, minable and recoverable reserves should be provided. A thickness isopach map of the D seam is also requested.