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supports, transformers, and associated control and electrical switch -gear. The existing 24 -inch culvert, in the <br />substation location, was extended approximately 120 feet to convey drainage under the substation area. <br />6MN Reservoir Powerline (MR08 -232) <br />A new powerline was extended approximately 1,500 feet between existing electrical Substation 12 (NW <br />Ventilation Fan) and the eastern edge of the proposed 6MN Reservoir. Powerline construction involved the <br />minimal disturbance required to place 15 powerpoles and string conductors, with pole placement avoiding the <br />Fish Creek buffer zone. The powerline construction project was necessary to supply power for pumps at the <br />6MN Reservoir. Exhibit 49R illustrates the powerline/pole locations. <br />15LT Powerline and Transformer (MR11 -258) <br />A new powerline will be constructed from primary Substation 14 (18 -Left Ventilation Shaft) to supply power to <br />the 15 -Left Ventilation Borehole installation. The new powerline will extend approximately 8,550 feet, and will <br />require the placement of up to 40 new powerpoles. A transformer at Substation 14 will convert the incoming <br />69KV power to 12,470V for distribution to 15LT. Powerline construction will involve the minimal disturbance <br />required to place powerpoles and string conductors, with pole placement avoiding the Fish Creek buffer zone. <br />Construction of a new powerline is necessary because the nearby distribution line from the Fish Creek Water <br />Treatment Facility does not have sufficient capacity to meet the power requirements for the 15LT installation. <br />Exhibit 49Y illustrates the powerline /pole locations. <br />MRl 1-258 2.05 -47.1 10/25/11 <br />