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NEWMONT <br />GOLDCORP. <br />Fill slopes for the haul roads generally will be constructed at the angle -of -repose of the fill material. <br />In areas of culvert installations, fill placement will be conducted in a manner that maintains the <br />integrity and function of the culvert. <br />During operations, haul road dust will be suppressed using the current methodologies. CC&V is <br />using water for dust suppression on temporary roads and may use magnesium chloride or other <br />suitable dust suppressants for more permanent or established roads. Water used in dust control <br />will be supplied from the established water supply sources, unless another supply becomes <br />available. <br />Haul road stormwater and sediment control will be managed using diversion berms, drainage <br />ditches, culverts, flow -velocity controls, and barriers to sediment movement, including interim re - <br />vegetation. Prior to release to drainages, stormwater runoff will be routed via ditches through <br />sediment control devices consistent with applicable best management practices (BMPs) such as <br />silt fences, rock check dams, and other effective measures. After such temporary detention, <br />stormwater runoff will be allowed to continue down gradient. Flow velocity reduction measures <br />will be employed along channels, as necessary, to minimize erosion. These measures will include, <br />but will not be limited to, vegetative strips, riprap, check dams, geotextile, and use of vegetative <br />debris. These features will be reviewed and maintained as part of the site Stormwater <br />Management Plan, which is provided in Appendix 3. Additional details about stormwater <br />management are provided in Exhibit G. <br />Cripple Creek & Victor Gold Mining Company <br />Cresson Project Amendment 13 <br />18 <br />Exhibit D <br />