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they will be grouted from the bottom to the top to stabilize them in the hole. !n order to hang the <br />• power cable in the hole a steel structure will be constructed over two or three of the cased holes. <br />(The additional holes borings are discussed in the following paragraph.) These structures aze ~ <br />metal beams supported on metals legs, which are bolted into a concrete footer. The beams will be `~ r,,,) <br />either l4' (one each) or 10' (up to three) feet in length, and the legs will be approximately 6.5' or i ~" <br />8' in height. The footers are approximately 4' x 4' x 4'. The 14' beam structures will be placed <br />over the 24" borehole. Also, a 7' x 10' by .3' pad will be poured around the 24' borehole. The <br />10" beam structures will be placed over the 6" diameter borings. A 7' x 6' x .3' pad will be <br />poured around these borings. <br />As part of the above, TCC will advance up to throe additional 6 inch cased borings at the existing <br />NMD Power Borehole. This is required due to problems encountered in grouting the casing as <br />approved in TR 00-37. These borings will be located on the same pad as the NMD Power <br />Borehole, as they will terminate in the same entry underground as the NMD Power Borehole. <br />During the boring of the holes the existing mud pit will be utilized, although it will require that it <br />be dug out and reestablished at the site. It is in the same location as it was originally located. <br />When the borings aze complete the pit will be backfilled and the pad graded as per the above. <br />connection with or to facilitate the surface coal mining and reclamation operations. The <br />description shall include: <br />(il (A) Location: <br />• (Bl Plans of the structure which describe its current <br />condition• <br />(Cl Approximate dates on which construction of the existing <br />structure was begun and completed: and <br />D) A showine. includine relevant monitoring data or other <br />evidence. whether the structure meets the desigrr <br />requirements or performance standards of Rule 4 or is <br />elieible for exemption from the desien requirements as set <br />forth in 2.07.6 <br />(ii) A wmpliance plan for each existing structure that is <br />proposed to be modified or reconstructed for use in connection <br />with or to facilitate the surface coal mining and reclamation <br />operation. The com~ance plan shall include: <br />(Al Desi r s~ifications for the modification or <br />reconstruction of the structure to meet the requirements of these Rules: <br />(Bl A construction schedule which shows dates for <br />beginning and competing interim steps and final reconstruction: <br />(C1 Provisions for monitoring the structure during and after <br />modification or reconstruction to ensure that the performance standards of these Rules are met; <br />. and <br />fU~'rf~~FJ~:? F,UG 1 9 2000 <br />MR 00-169 2.05-65.3 08/01/00 <br />