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VoltaPe Regulator <br />TCC will use three voltage regulators at the mine to increase the effectiveness of its power distribution system. The <br />regulator will be placed on a concrete pad and enclosed within a chain link fence. The location of the regulators is <br />shown on Map 24. <br />Capacitor Bank (MR 01-175) <br />In order to assure the effectiveness of the power delivery system to the mine YVEA will be installing and <br />maintaining two capacitor banks on TCC's property. The location of the capacitor banks is shown on Map 24, <br />Surface Facilities. The capacitor banks will be the property of YVEA and will remain after mining to compliment <br />YVEA's power distribution system. <br />The footprint of the capacitor bank area is approximately 0.2 acres. Within this footprint approximately 12 - 18 <br />inches of topsoil exists and it will be salvaged prior to installation of the capacitor banks. The topsoil, <br />approximately 485 CY's, will be placed on topsoil stockpile SF-1. Also, a segment of Colorado Yampa Coal <br />Company's (CYCC) drainage channel PG 1-2 will be relocated to accommodate construction of the pad the <br />capacitor banks will be constructed upon. The channel will be moved approximately 5 feet to the west of its current <br />location. The channel will re reconstructed as per the design approved in CYCC's permit number C-81-071. The <br />pad will be constructed by importing approximately 700 CY's of selected material into the pad area. The selected <br />material will come from either the clay salvage area located at the refuse pile or materials brought in from off-site. <br />The capacitor banks will be constructed on top of six 3 foot diameter piers, with an 18 inch 5 foot concrete slab on <br />top of the pier. A battery cabinet will be included within the pad area and it will be constructed on a footer <br />approximately 6' x 3' x 1.5'. In addition to the battery cabinet, an additional ] 0 piers will be poured to support <br />• various deadend structures, switchers and fuse panels. All of the piers will be typically 12 feet in depth and three <br />feet in diameter. A security fence will be constructed around the pad to keep unauthorized persons from entering <br />into the site. The pad will extend out from the fence to allow access into the facility and minimize weed growth. <br />The capacitors will be placed and wired into Twentymile's power system. The facility will remain after mining. <br />RetaiuinQ Wall <br />TCC will instal[ a Hilfiger type retaining wall at its' Batch Loadout Facility (BLO}. The location is shown on Map <br />24. The retaining wall will function as a stabilizer to limit any erosion between the access to the BLO and the <br />railroad tracks. The wire basket and rock retaining wall will be buried as part of final reclamation. <br />• <br />MR 01-175 page 2.05-47.1 23 October Ol <br />