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Secticvz- 2.05.3 <br />elevation of 6,018 feet and a 14-foot reinforced concrete wall on the outlet side of <br />the pond. Pond interior sideslopes are at 3H:1V and the concrete wall is keyed into <br />the competent Rawlins sandstone bedrock, both along its base and sides. The pond <br />can be dewatered either through the 8-inch principal spillway discharge pipe at <br />elevation (invert) 6,027.5 feet or through anopen-slot emergency spillway at <br />elevation 6,029.5 feet. If required for sediment clean-out, Pond E would be <br />dewatered bypumping. Design information for Sedimentation Pond E is provided in <br />Exhibit 2.05-E3, Drainage and Sediment Control Plan, and the pond configuration is <br />illustrated bythe Sedimentation Pond E Map, (Map 2.05-MSI). <br />Sedimentation Pond F -Sedimentation Pond F is located at the base of the slope <br />below the Hubbard Creek Fansite, adjacent to Hubbard Creek. This pond provides <br />drainage and sediment control for the Hubbard Creek Fansite and associated <br />disturbance. The pond was originally constructed as part of the Blue Ribbon Mme <br />facility The pond will be dredged to provide a bottom elevation of 6322.0 feet with <br />Z.SIL• 1V sideslopes. The pond discharges through a 6-inch drop inlet at an <br />elevation of 6329.2, an 12-inch QvII' secondary spillway with an invert elevation of <br />6329.34 and an emergency spillway with an invert elevation of 6329.95. Design <br />information for the sedimentation Pond F is provided in Exhibit 2.05-E3, Drainage <br />and Sediment Control Plan, and the pond configuration is shown on the facility <br />design Hubbard Creek Fansite Map, (2.05-Rl-HFS) within Exhibit 2.05-E 1. <br />Sedimentation ponds have been designed and constructed in compliance with applicable regulatory <br />requirements including applicable provisions for foundation preparation, embankment construction, <br />(avoidance of process waste and other deleteriotts materials and compaction) embankment <br />protection, and installation of non-clogging discharge structures. <br />Miscellaneous Impoundments - <br />Temporary mud pits, associated with exploration and gob vent borehole drilling activities, aze used as <br />"tanks" to hold drilling fluids. Mud pits are drained and/or filled as soon as possible after <br />completion of drilling activities. Such mud pits are considered impoundments and information <br />concerning their design, etc can be found in Exhibit 2.05-E3 -Drainage and Sediment Control Plan, <br />Inspection and Certified Inspection Reports - <br />In accordance with Rules 4.05.09(14) and 4.05.09(15) ponds and miscellaneous impoundments are <br />inspected and certified inspection reports filed on a regulaz basis to assure that they continue to <br />function as designed and to detect anyindications of significant <br />TR-53 2.05-35a Revised Sentember 2005 <br />