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4.05.2 and if the disturbed surface drainage area within the <br />total disturbed surface area is small, the exemption may be <br />given. <br />The operator has one area at the train loadout area which falls <br />within the guidelines of Rule 4.05.2(3)(a)(b). This area is <br />described as follows: <br />Mine Silo Area Railroad Outslope <br />This area consists of approximately 1.5 acres of revegetated <br />disturbance occupying outslopes of the railroad embankment <br />developed at the train loadout facility. This small area <br />exemption is depicted on Map 7. Flow from this area travels <br />through a grass filter established below the site. The grass <br />filter consists of the toe of outslopes of the railroad <br />embankment developed at the train loadout facility. The grass <br />filter consists primarily of Smooth Brome and is established on <br />the perimeter of an irrigated orchard. Cover in the grass filter <br />area is conservatively estimated at 50 percent. No mixing of <br />Osurface drainage and underground mine drainage occurs within <br />or results from this small area exemption. <br />SedCad- modeling utilized to describe this site predicts runoff <br />from the site will occur in compliance with the allowable <br />settleable solids concentration. The SedCad- modeling is <br />presented in Exhibit 8 Protection of the Hydrologic Balance, <br />pages SAE -26 through SAE -30. Couldn't find these pages... <br />(iii) Probable Hydrologic Consequences. <br />The probable hydrologic consequences may be divided into <br />surface water and groundwater systems. The effects will be <br />organized as follows: <br />Effect to surface water from mine facilities. <br />Effect to ground water from mine facilities. <br />RN -07 2.05-38 02/1B <br />