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• will be proposed. As of the Mid Term Review of 2006, the slot cut has been mined through and <br />reclaimed. No future slot cuts are planned for the operation. <br />Exploration Drill Holes The New Horizon Mine coal reserves are based on approximately 115 <br />boreholes drilled between the mid-1980's and 2004. The bulk were drilled by Peabody Coal <br />Company in the 1980's with Western Fuels -Colorado (WFC) drilling about 55 holes from 1993 to <br />2004. Occasionally, WFC needs to drill infill holes within the existing array to make more certain of <br />its' reserve estimations concerning various mining parameters such as coal quality, coal and <br />overburden thickness, etc. WFC anticipates that from the year 2003 and onward such infill holes <br />will occasionally be needed. See Attachment 2.05.3(3)-10 for details. <br />Temoorarv Relocation for CC Comoanv West Lateral Ditch <br />The Colorado Cooperative Company has operated an irrigation ditch known as the West Lateral <br />Ditch to irrigate lands in the area for many decades. With the mines advance to the north though <br />BB Road, this ditch needs to be diverted. Since the temporary detour route involves rises and dips, <br />a pipeline must be used. The plans enclosed in this document show the detailed design of the <br />. pipeline temporary route and the permanent relocation. <br />After evaluation of all alternatives, it is believed that a high density polyethylene (HDPE) pipeline is <br />the best choice for the temporary and permanent routes. Although expensive, we feel that this <br />design will best suit the long term needs of the CC Co. <br />In April, 1999, the mine was operating in cuts 40-45 as shown on Map 2.05.3-1. This encompasses <br />the full operation sequence from topsoil stripping to overburden blasting, removal, coal removal, <br />backfilling and soil replacement. A temporary open cut will be left south of BB Road and a detour <br />will be built for BB Road in preparation for the crossing of BB Road in mid-2000. Mining will <br />proceed north on the Martin and Benson properties until the outcrop is reached south of the BB <br />Road detour. This will occur sometime in mid 2003. In order to balance the low overburden cuts <br />near the outcrop, cuts 66-69 may be taken on the west side of 2700 Road while mining northeast <br />of the Sunshine Comer (intersection of BB Road and 2700 Road). <br />The portion of ditch to be replaced begins near the eastern portion of the Martin property and ends <br />at the ditch crossing of 2700 Road. This distance is approximately 4616 feet with an elevation drop <br />of 77 feet. This is an average grade of 1.67%. The ditch will be disrupted in early 2002, therefore <br />the temporary route will need to be installed prior to this time. Installation would be undertaken well <br />• in advance of the irrigation season to ensure that the system is fully functional when it is needed. <br />(Revised July 2006) 2.05.3(3)-53 <br />