Laserfiche WebLink
IV. Topsoil -Rule 4.06 <br />Soil information can be found in Volume 3, Section 11.1, Volume 4, Section V, and Volume <br />4, Section IV, Appendix IV A. <br />A. The Division previously found that the "reverse sequence soil replacement" plan, in <br />conjunction with the field trials, is appropriate for refuse area reclamation, pursuant to <br />Rule 4.06.2(2)(a). This finding was based on field observations of topsoil and subsoil <br />stockpile vegetation cover, evaluation of topsoil and subsoil chemical and physical <br />properties, and observation and evaluation of RP-1 revegetation data. The subsoil will be <br />more suitable for sustaining desired vegetation than is the available cheatgrass-infested <br />topsoil. Within the refuse areas, a minimum of one foot of topsoil will be replaced, with <br />a minimum nontoxic cover (topsoil and subsoil) thickness of 30 inches. The operator has <br />committed to document topsoil/cover soil material balance quantities of suitable topsoil <br />and subsoil is being salvaged. <br />V. Sealing of Drilled Holes and Underground Openings - Rule 4.07 <br />Sealing of wells, holes, and other openings is discussed in Section V.F of Vol. 4 of the <br />permit application. <br />A. Underground openings requiring sealing at the mine site include mine portals, mine <br />shafts, groundwater monitoring wells, and vent degasification wells. The Division will <br />require that each hole, well, or other underground opening be capped, sealed, backfilled, <br />or otherwise properly managed (4.07.3). <br />VI. Use of Explosives - Rule 4.08 <br />No specific approvals are granted to the applicant under this section. <br />VII. Disposal of Excess Spoil - Rule 4.09 <br />No specific approvals are granted to the applicant under this section <br />VIII. Coal Mine Waste Banks -Rule 4.10 <br />Information pertaining to the handling and disposal of coal processing waste generated by <br />the mining operation is presented in Section IV. D Vol. 4 of the permit application. Map 76 <br />exhibits the location of the 11 refuse disposal areas to be developed over the life of the mine. <br />Map 77A shows the configuration of the first five sub-areas to be developed. Refuse areas <br />RP-1, RP-2/3/4, and RP-5A were developed during previous permit terms. Refuse area RP- <br />1 has been reclaimed; RP-2/3/4 and RP-5A are currently active. <br />Detailed design plans have not been provided for proposed future refuse disposal structures. <br />Pursuant to Rule 2.05.3(8)(ii), detailed design plans will be required prior to initiation of <br />Deserado Mine 25 September 19, 2008