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10 2.05.3 <br />Run -off from the material storage area located below drainage area E and pond C <br />does not go through a treatment facility such as a sediment pond. The material <br />storage area is located north of the haul road along the old rail bed. Run -off from the <br />haul road along the old rail bed does not go through a treatment facility either. Run- <br />off from these adjacent areas is controlled by berms and ditches. A berm along the <br />south side of the area contains drainage to the ditch on the north side of the material <br />storage area. <br />Run -off from the material storage area and haul road is directed to ditch D -E1. <br />Sediment traps will be installed in ditch D -E1 as shown on Map 21 -1. The sediment <br />traps will be straw bales, silt fences or other approved devices. The sediments traps <br />will slow and remove sediment from the run-off from the material storage area and <br />haul road. The sample point for this SAE near the dewatering valve for pond C. <br />Run -off from the pump station located near the Deer Trail Ditch will not be contained <br />in a sediment pond. The pump station is located below old State Highway 133 in a <br />location where sediment pond construction would be difficult. Run -off from the area <br />disturbed by the pump station construction will be filtered through a sediment trap <br />such as straw bales, silt fences or other approved devices. The location of the <br />sediment trap for the pump house is presented on Map 21 -1. <br />The vent shaft pad located in Freeman Gulch will be considered a small area <br />exemption. The operator will monitor the Flow from the small area exemption to <br />assure compliance with 4.05.2(3). The operator will use its best efforts to obtain <br />samples. The samples will be analyzed for pH, conductivity and total settleable <br />solids. Samples will be in compliance if they contain settleable solid levels of 0.5 ml /I <br />or less and the pH is greater than 6.5 and less than 9.0. <br />Run -off from the Freeman Gulch vent shaft pad does not go through a treatment <br />facility such as a sediment pond. Run -off from this pad will be filtered through one <br />of two sediment fences. Sediment fence #1 is 130 -feet long with a tieback of 5 -feet. <br />Sediment fence #2 is 30 -feet long with a tieback of 5 -feet. Design of the sediment <br />fences is presented in Volume III, Exhibit 8 beginning on page Exh -8 - 87. Flow will <br />be routed to the sediment fences with a series of berms as shown on Map 35. <br />Run -off from the Hubbard Creek vent shaft pad does not go through a treatment <br />facility such as a sediment pond. Run -off from this pad will be filtered through a 40- <br />foot long sediment fence. Design of the sediment fence is presented in Volume III, <br />Exhibit 8 beginning on page Exh -8 - 209. Flow will be routed to the sediment fence <br />with ditches and berms as shown on Map 39. <br />2.05-33- 0/07 <br />fMOVED <br />