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• 2.05.3 <br />Run -off from the material storage area located below drainage area E and <br />pond C does not go through a treatment facility such as a sediment pond. <br />The material storage area is located north of the haul road along the old rail <br />bed. Run -off from the haul road along the old rail bed does not go through a <br />treatment facility either. Run -off from these adjacent areas is controlled by <br />berms and ditches. A berm along the south side of the area contains <br />drainage to the ditch on the north side of the material storage area. <br />Run -off from the material storage area and haul road is directed to ditch D- <br />E1. Sediment traps will be installed in ditch D -E1 as shown on Map 21 -1. <br />The sediment traps will be straw bales, silt fences or other approved devices. <br />The sediments traps will slow and remove sediment from the run -off from the <br />material storage area and haul road. The sample point for this SAE is near <br />the dewatering valve for pond C. <br />Run -off from the pump station located near the Deer Trail Ditch will not be <br />contained in a sediment pond. The pump station is located below old State <br />Highway 133 in a location where sediment pond construction would be <br />difficult. Run -off from the area disturbed by the pump station construction <br />is will be filtered through a sediment trap such as straw bales, silt fences or <br />other approved devices. The location of the sediment trap for the pump <br />house is presented on Map 21 -1. <br />The vent shaft pad located in Freeman Gulch was covered by a massive <br />slide. It is no longer monitored or maintained. Design of the sediment <br />fences was presented in Volume 111, Exhibit 8 beginning on page Exh -8 - 87. <br />Run -off from the Hubbard Creek vent shaft pad does not go through a <br />treatment facility such as a sediment pond. Run -off from this pad will be <br />filtered through a 40 -foot long sediment fence. Design of the sediment fence <br />is presented in Volume III, Exhibit 8 beginning on page Exh -8 - 209. Flow <br />will be routed to the sediment fence with ditches and berms as shown on <br />Map 39. <br />,7 <br />Run -off from the Hubbard Creek pump station does not go through a <br />treatment facility such as a sediment pond. Run -off from this pad will be <br />filtered through a 50 -foot long sediment fence. Design of the sediment fence <br />is presented in Volume III, Exhibit 8 beginning on page Exh -8 - 234. <br />PR-12 2.05-42- 2/10 <br />