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drainage patterns across each road will be reestablished, and all disturbed areas will be revegetated. <br />Certain roads will be retained for postmining use, in accordance with landowner requests for use <br />following completion of mining and reclamation. Road retention narrative and documentation is <br />provided on Page 14-14 and in Appendix 14-5. New Access Road IA, to be constructed in <br />conjunction with South Portals area reclamation, will be retained in its entirety for the alternative <br />postmining land use, as will a short upper segment of existing Access Road 1. Landowner request for <br />retention of these road segments is provided on Appendix pages A14-5-29 and A14-29-30. In <br />addition to the haul road and access road segments specified below, portions of Light Use Road 1, <br />Light Use Road 6, and Light Use Road 4 which were pre-existing, minimally modified and used only <br />occasionally by the operator, will be retained following reclamation in accordance with landowner <br />requests. <br />A. Haul Roads <br />The permittee has made a demonstration, based on site-specific precipitation rates, percent <br />of grade, and soil properties, that use of alternative specifications for culvert and bridge <br />sizing will not result in increased erosion. The Division therefore proposes to approve the <br />use of the alternative specifications for the following culverts or bridges, also referred to as <br />the "dip-sections," where Haul Roads 2, 3, and 4, cross Coal Gulch. The structures are <br />depicted on Exhibits 8A, 9A, 10B, 19, and 51 (4.03.1(4)(e)(vi)). <br />The operator and landowners have requested retention of Haul Road 4 from the CRDA-1 <br />turnoff to the CRDA-3 turnoff, and the entire length of Haul Road 5. Also, Haul Road 3 <br />between the county road and the rail loop will be retained for the postmining land use in its <br />present configuration. The subject roads comply with all applicable performance <br />standards, retention is compatible with the approved postmining land use, and written <br />landowner requests for road retention have been provided (4.03.1(1)(f). <br />B. Access Roads <br />The operator and landowners have requested the retention of a short segment of Access <br />Road 1, and the entirety of Access Roads 1A, 2, and 3 as documented in Appendix 14-5. <br />Retention is compatible with the approved post mining land use and landowner desires, <br />and the roads comply with all applicable performance standards. Therefore, the Division <br />has approved retention of the access roads as specified in Appendix 14-5 (4.03.2(1)(f)). <br />H. Hydrologic Balance - Rule 4.05.2 <br />A. Water Quality Standards and Effluent Limitations <br />With the exception of approved small area exemptions, all surface discharges from the Roadside <br />Portal Mines will pass through sediment ponds or treatment facilities designed to ensure that all <br />discharges meet applicable effluent limits under the operator's Colorado Discharge Permit <br />System (CDPS) permit, for the Roadside Portal Mines. Water discharged from underground <br />workings is clarified by sufficient settling time in underground sumps or abandoned mine <br />workings prior to discharge into the Colorado River. A storm water permit and spill prevention <br />Permit Revision No. 4 19 February 3, 2009