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XYI. Mine Facilities, Coal Handlin Structures, Roads, Ponds, Im oundmeni:s and aversions - u es an Information concerning the mine facilities, coal handling structures, roads, ponds, and support facilities can be found in Section 2,05.3 (pages 2.05.5-21Rb through 2.05.3-57) of the permit application. A. Roads The applicant presents a discussion of roads in Section 4.03 of Volume 2 of the permit application. Road locations and designs are presented in Exhibit 17 and on Map 27. The Division reviewed these designs for compliance with the design and performance standards of Rule 4.03. Most roads found at the Eagie Mines are Tocated on gentle slopes of less than 5% grade. Only light-use roads which give access to monitoring sites are found on steeper slopes. The operator is not proposing any new roads in the application. AlT roads are existing structures. The design report prepared by C.T.L. Thompson (Exhibit 17) demonstrates that the existing roads were designed with sound engineering practices and are structurally stable. For the purpose of examining road cuts and road embankment conditions the operator looked at the worst case road segments at the mine. No variances from the road design requirements were requested, The roads at the mine were designed for proper road drainage as well as compatibility with the sediment control system. A few access and light-use road segments did not require roadside drainage ditches to collect runoff due to the fact that the grade is only 2-5~. An example is the access road on the southeast edge of the surface facilities arena. Roads were pitched to allow sheet runoff to disperse into adjacent grassland. On steeper roads, roadside drainage ditches are used to collect runoff and safely discharge it. Much of the runoff from the roads is passed through a sedimentation pond to decrease suspended solids. Culverts are provided at intersections with drainage channels so as not to interfere with the natural stream flows. The operator presented design information on the road bridge that crosses the Williams Fork River. This bridge has been designed to safely pass the river flow resulting from a 100-year storm event. One variance from the road drainage requirements is granted to the applicant. Rule 4.03.1(4)(e) and 4.03.2(4)(e) contains specific requirements for culvert spacing to discharge water at periodic intervals from the mine roads. The Division has not required Empire Energy Corporation to adhere to these spacing requirements. The roads are existing structures built before this requirement was implemented. The roads either discharge water as sheet flgw or into a roadside ditch that has been designed to handle the runoff generated by a 10-year, 24-hour precipitation event. For these reasons, additional road drainage culverts were not required. -5b-