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Haul road specifications aze contained in Appendix 5-1 which includes profiles and other specifications such as width, gradient, surface specifications, cut and fill information and culvert and ditch information. Specific discussions on the care and maintenance of the outslopes of the haul road have also been described in Appendix 5-1. Road designs have been reviewed and certified by a registered professional engineer as set forth in Appendix 5-1. Oakridge's haul road has been designed to ensure that the construction, maintenance and post-mining conditions of the haul road into and across the site will control erosion, siltation and the pollution of water entering and leaving the azea which the road will cross. The slopes and culverts of the road were designed and aze maintained in such a way to prevent additional contributions of suspended solids to run off outside the permit azea. In addition, there aze no alternative design criteria or specifications other than the proposed culvert spacing which deviates from the criteria set forth in Rule 4.03.1. A section of the haul road crosses over the box cut spoil azea which filled a section of Cazbon Junction Canyon within the permit azea. The watershed above this area is less than one squaze mile. There aze no fords of ephemeral streams. No steep slope cuts aze involved with the subject haul road. The surfacing of the haul road has been described in Appendix 5-1. Initially, a layer of bedrock was established for the haul road and covered with crushed rock and gravel according to the schematic in Appendix 5-1. Road drainage culverts have been designed to accommodate the ten yeaz 24 hour precipitation event. Descriptions of culvert designs, placement, and protection for culvert inlets and outlets have been discussed in Appendix 5-2. The haul road is maintained with graders and other equipment necessary to provide smooth, adequate surface for the hauling of coal from the pit azea to the staging azea. Also, an existing light duty access road is used at the mine. The subject road has been identified on the applicable maps. The existing road will be maintained and upgraded as necessary for mine access. It is expected that the existing road will be graded and graveled with a 2" x 0" gravel for light duty vehicles. No 50-ton coal haulers will use this road. The haul road will remain as a permanent access to the property after mining has been completed. A letter from the landowner has been enclosed in Appendix 5-1 authorizing the haul road to remain after mining and reclamation for the post mining land use. The access roads will also remain as a part of the post mining land use as described in Appendix 5-1. 2.05.3(4) Pouds, Impoundments and Diversions The sediment control system for the mine is being substantially modified for the reclamation only permit. The sediment control system will employ structures to contain runoff from a 10-yeaz, 24- hour precipitation event. The sediment control system will include a new collection ditch from the Permanently Reclaimed Spoils Area to Sediment Pond # 2, Sediment Pond # 2, three detention sumps below the North Pit and North Pit outslope, and a detention sump below the reclaimed TR09, TRll (v1.0) 5-8 Revised 3/98, 8/02