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will be a highwall. The east slope of the slot cut will be the angle of repose of the backfill, which <br />is approximately 40 degrees. The 115 feet wide distance is the opening at the bottom of the cut. <br />The slot will begin approximately 630 feet south of the intersection of BB Road and 27.00 Road <br />and will extend about 920 feet north of the intersection. The total length of the slot cut is about <br />2330 feet. This open "turn" slot is necessary to allow for a safe truck -shovel working area and <br />for the overburden push dozer(s) to dump their spoil off the coal edge when the mining operation <br />turns from the southern end of the BB Detour Road and advances westward. Map 2.05.3(3)-2 <br />shows a typical cross section of the Pit Turn Slot Cut. WFC plans on making up the deficit <br />backfill volume this cut will create when it mines west of 27.00 Road and the overburden depth <br />increases. WFC anticipates that by the end of 2004 the slot cut will be backfilled, graded and <br />topsoiled by the normal ongoing mining processes. At that point a revision for bond reduction <br />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 />2. Exploration Drill Holes <br />The New Horizon Mine coal reserves are based on approximately 115 boreholes drilled between <br />the mid -1980's and 2004. The bulk were drilled by Peabody Coal Company in the 1980's with <br />Western Fuels - Colorado (WFC) drilling about 55 holes from 1993 to 2004. Occasionally, <br />WFC needs to drill infill holes within the existing array to make more certain of its' reserve <br />estimations concerning various mining parameters such as coal quality, coal and overburden <br />thickness, etc. WFC anticipates that from the year 2003 and onward such infill holes will <br />occasionally be needed. See Attachment 2.05.3(3)-10 for details. <br />3. Relocation of the CCC West Lateral Ditch <br />An agreement between the Colorado Cooperative Company (CCC) and Western Fuels Colorado <br />was reached in 2001 to install a primary 26" HDPE pipeline and a secondary 12" HDPE pipeline <br />to temporary divert and distribute approximate 38cfs of water to the lawful water share owners <br />while mining through the original West Lateral Ditch located within the permit boundary. After <br />the land was reclaimed, the same pipelines were reinstalled into the approximate original ROW <br />of the original open ditch. Gate valves and mechanical flow meters were installed at agreed upon <br />locations along the pipeline so each land owner could meter their shares of water out of one or <br />the other or both of the two main pipelines. It was decided and agreed upon that a big benefit of <br />keeping the pipelines as a permanent structure across the final graded reclamation was that <br />leakage of water from an open ditch through disturbed ground would be eliminated, plus it <br />would give the downstream water users some pressure to better irrigate their land with. As of <br />2007, the 28" & 12" HDPE pipelines had been permanently buried in their final resting place, <br />Page 2.05.3(3)-46 October 2015 (TR -69) <br />