Laserfiche WebLink
embankment. All of the area around the pond is disturbed therefore, the easiest access route into the belt will be <br />• chosen and the mobile equipment will be driven over this route. <br />The existing drainage control plan was slightly modified to control drainage from the site. The modifications are <br />shown on Map 24. The modifications included rerouting ditch D-2 so that it carries runoff and mine water around <br />the southern side of the coal stockpile area. The ditch, as shown on Map 24, drains into Pond D. Two culverts will <br />be placed in the Ditch D-2 at the locations shown on Map 24. Anew ditch, which has been labeled Ditch E-2, was <br />added to drain the water from the northern part of the stockpile into Pond E. This does not increase the drainage <br />area tributary to Pond E. Therefore, Pond E does not require resizing. Two culverts were placed in this ditch to <br />pass water under an access point into the stockpile and under the haul road. The design information for the ditch <br />and culverts is contained in Exhibit 8. <br />A coal preparation plant and associated support facilities was constructed adjacent to the overland conveyor in the area <br />betwcen existing Pond E and the existing low-quality coal stockpile as shown on Map 24. <br />Site preparation and grading activities involved the following: <br />• Placement of a culvert in Ditch D-3 on the south side of the overland conveyor. <br />• Grading to establish effective access and flat areas for installation of the preparation plant feed hoppers and <br />transfer conveyors <br />• Grading to establish access and flat areas for construction of the preparation plant, thickener, intermediate <br />feed point, and clean and stoker coal stockpiles on the north side of the overland conveyor <br />• • The grading necessary to expand the existing coal stockpile area to the north <br />The regraded configuration and future facility locations are shown on Map 24. Required grading involved movement <br />of approximately 54,000 CY of material, with approximately 31,000 CY of cut and 23,000 CY of fill. Supplemental <br />fill material was obtained from the area of the ventilation borehole. Site preparation and grading activities for the <br />preparation plant and coal stockpile expansion required modification of drainage structures in the effected areas. <br />Required modifications, as shown on Map 24, include the following: <br />• Elimination of the lower portion of Ditch D-2 and diversion of the upper portion of Ditch D-2 to Ditch <br />E-2 <br />• Modification of the discharges from Site 109 and the Wedge sump to divert discharge flows to Site 114 <br />(Emerald Springs). <br />• Addition of Ditch E-3 to intercept and route runoff from the former stoker coal storage small area <br />exemption to Pond E. <br />• Relocation and reconstruction of Pond E and the resulting relocation of the lower portion of Ditch E-1 <br />consistent with the new pond location. <br />• Installation of a new culvert in Ditch D-3 to allow backfilling of a portion of the existing ditch in order to <br />provide both access and a flat azea for installation of feed hoppers and transfer conveyors for the proposed <br />preparation plant. <br />• • Redesign and relocation of a portion of Ditch E-I on the north edge of the expanded coal stockpile area <br />and associated access road. <br />pppROVED APR 2 4 2000 <br />Permit Renewal No. 3 2.05-28 12/10/98 <br />