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J. J. Dudash - 2 - August 13, 2003 5. DMG -Only vertical alignment is exempt from Rules 4.03.3(2) and (3). Please revised the wording under Light Use Roads on pages 2.05-25 and 2.05-26., and demonstrate that the existing road is satisfactory for other environmental considerations of these two Rules for use as amine-related light use road. BRL - Pages 2.05-25 and 26 were revised as requested to demonstrate that the new and existing roads are satisfactory for the environmental considerations of Rules 4.03.3(2) and (3). 6. DMG -The 1.5 horizontal to 1 vertical cut slopes to the northwest of the stoker stockpile undercut the haul road to the portals. Please demonstrate that these slopes have a safety factor of 1.3 with regard to the haul road [Rule 4.03.1(3)(e)(ix)], with a surcharge representative of a haul truck. BRL -Enclosed is a Geotechnical Engineering Report for the Coal Preparation Facility dated August 11, 2003. The report is to be inserted into Volume VII, Tab 10. Geotechnical - B Seam Excess Material Stockpile BRL -The DMG and BRL have agreed the B-Seam Excess Material Stockpile does not fall under the coal waste pile regulations because it is a temporary stockpile. Therefore, a few of the adequacy comments listed below are not applicable to this technical revision application. 7. DMG -Please distinguish [Rule 4.09.1(1)], by a standard nomenclature, the designations of spoil and equipment storage areas. On Drawingl4-2, Sheet 2 of 4, there are material storage areas and an (excess material stockpile boundary) excess material stockpile area. In the reclamation plan, please designate the source and quantities of backfill materials (basis for reclamation cost estimates). BRL -Approximately 140,000 cubic yards will be excavated to form the B-Seam portal bench. All of this material will be placed in the temporary excess material stockpile located immediately east of the B-Seam portal bench. Enclosed is Map 15-2. The label on the excess material stockpile was changed to Portal B Excess Material Stockpile. 8. DMG -Please provide a stability analysis specific to the Portal B excess material stockpile. BRL - Enclosed is a Geotechnical Engineering Study for the B-Seam Portal Bench dated July 30, 2003. The report is to be inserted into Volume VII, Tab 10. 9. DMG -Please reformat the application with respect to the plan and design of the (to be specifically designated) excess material stockpile. The Division requests a general and detailed design [Rules 2.05.3(8)(a) and (b)] in standard engineering format, including a plan, cross- section, and specifications. Many of the specifications are stated and could be lifted from pages 2.05- 44 and 2.05-45, and the plan view might be copied from Drawing 15-2. These pages could then be revised to refer to the design in an appropriate location in the Permit Application Package. The terrace drainage slopes are at 14%, and will likely require armor protection for stability. If so, please add this specification to the design. Perimeter and diversion ditches, terrace and bench ditches, etc., should be designed with armor protection. Keyways, and other construction requirements should be indicated thereon. No certification of the design by a registered professional engineer was found in the current submission [Rule 4.09.1(2)]. A stability report of the existing foundation slopes and of the completed (design) pile could be co-located with the design. As the pile is temporary, the Division concurs with no requirement for topsoil, if such is not required to develop a sufficient vegetative cover to minimize erosion of the pile. BRL -Not applicable.