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Southfield Mine <br />Minor Revision Request No. 16 <br />South Fan Installation <br />Table 33, Proposed Temporary and Permanent Seed Mixtures and <br />Seeding Rates, in the EFCI permit document. <br />Open Fan Portal and Stabilize Surrounding Highwall Areas <br />Once any fill material covering the portal opening is removed, any loose <br />material around the portal will be excavated. In addition, adjacent <br />highwall areas will be scaled to remove loose rocks or other materials. <br />As appropriate to maintain stability, minimize potential hazards and <br />facilitate installation of the fan housing, EFCI may construct block walls, <br />install steel netting or construct other protective structures at the portal <br />opening. <br />Extend Existing Powerline to the Site <br />When the Monarch No. 4 Mine ceased operations in the 1940's, <br />Southern Colorado Power Company (SCPC) removed the transformers <br />and one section of line. The rest of the transmission line was left in- <br />place and can be used as the power supply for the proposed fan <br />installation. EFCI has contacted SCPC and requested that they extend <br />the existing power transmission line to the proposed fan installation. <br />This will involve placement of 3 new line poles and installation of three ~~~ <br />transformers, a single power supply cable and related powerline d~ <br />} <br />components. Additional line poles will not require "raptor-proof" Imo,-, <br />crossarm design since a single shielded power supply cable will be ~el^l <br />utilized. The additional poles will be located as shown on the South <br />Mine Fan Installation Map, (Map MR16-1 ). <br />~~ cork P7 ie remB1 B.BBO <br />12/2J/Bt 9Pm 10 <br />