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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 forthis SAE nearthe <br />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 />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 will be considered a small area <br />exemption. The operator will monitor the flow from the small area exemption <br />to assure compliance with 4.05.2(3). The operator will use its best efforts to <br />obtain samples. The samples will be analyzed for pH, conductivity and total <br />settleable solids. Samples will be in compliance if they contain settleable <br />solid levels of 0.5 ml/I or less and the pH is greater than 6.5 and less than <br />9.0. <br />Run-off from the vent shaft pad does not go through a treatment facility such <br />as a sediment pond. Run-off from this pad will be filtered through one of two <br />sediment fences. Sediment fence #1 is 130-feet long with a tie back of 5- <br />feet. Sediment fence #2 is 30-feet long with a tie back of 5-feet. Design of <br />the sediment fences is presented in Volume III, Exhibit 8 beginning on page <br />Exh-8 - 87. Flow will be routed to the sediment fences with a series of berms <br />as shown on Map 35. <br />MR-78 2.05 - 33 - 01/07 <br />A PPRo~Ep <br />Z/rZ/o~ <br />