Laserfiche WebLink
69 KV Powerline <br />TCC constructed a 69 KV powerline as shown on Map 24, Surface Facilities. The line provided power to the <br />substation that powered the 8050 dragline. A trailing cable extended from the substation located near the Batch- <br />• Weigh system to the dragline. Once the dragline, which is not the property of TCC, was moved from the site, <br />the trailing cable was removed. It is anticipated the substation will be removed unless needed for other <br />applications at the mine. When the powerline is no longer needed, it will be taken down and removed from the <br />site. <br />Washnlant II Powerline and Substation (TR07-59. MR07-222. Washulant 1T1 <br />A new 69 KV distribution line was extended approximately 350 feet from the existing 69KV line to the <br />Washplant II MCC Building. Powerline construction involved the limited disturbance required to place 4 <br />powerpoles and string conductors, with pole placement avoiding the Foidel Creek buffer zone. A second <br />redundant distribution line was constructed from the Sandstones Power Substation to the new Washplant II <br />Substation. Construction of the new distribution line requued placement of five new powerpoles, and associated <br />powerline construction (approximately 2,100 feet of new line). Powerpole installation involved the use of <br />existing roads or limited overland access to the individual pole locations, localized shallow auger drilling to set <br />each pole, pole placement and anchoring, and distribution of the limited drill cuttings over the small azea <br />surrounding each pole. Given the very limited temporary disturbance involved, TCC did not include topsoil <br />recovery for the individual powerpole locations. It should be noted that pole locations were selected specifically <br />to avoid stream buffer zones or other sensitive areas. Construction of the distribution lines involved the use of <br />existing roads or limited overland access by a bucket truck and cable truck to install cross-bars, insulators and <br />conductors. All cross-bars have installed raptor deten•ents, consistent with approved raptor protection <br />guidelines. Installation of the new dedicated Washplant Substation required construction of a 40 x 60 foot <br />concrete pad, enclosed by an 8-foot high chain-link fence and installation of steel supports, transformers, and <br />associated control and electrical switch-geaz. The existing 24-inch culvert, in the substation location, was <br />extended approximately 120 feet to convey drainage under the substation area. <br />• <br />• <br />MR07-222 2.05-47.1 08/28!07 <br />