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(c) A _plan for backfill~,_soil stabilization, compacting, and <br />• grading,_with_ contour maps and appropriate cross-sections that show the <br />anticipated final surface_ configuration of t_he proposed permit area, in <br />accordance with 4.14 and for stream channel_ reconstruction in accordance <br />with 4.50.4. <br />RESPONSE: <br />In order to complete the channel repair work by October 31, 1987, a <br />number of steps will have to be followed in each of the areas. The <br />repair areas are as follows: <br />Area Channel Length Access Corridor/Work Area Acreage <br /> (feet) <br />7 551 9 <br />31-1 640 <br /> 11 <br />31-2 310 <br />41 3300 7 <br />51 445 10 <br />51W 395 6 <br />• <br />Prior to beginning work on the channel, an access corridor into the <br />site along with a work area parallel to the channel will be <br />constructed. The access corridor (approximately 100-150 feet wide), <br />will have the topsoil removed (approximately 18 inches deep) by blading <br />it to the side of the cor•ridor•. Topsoil marker signs will be placed in <br />the windrowed soil to minimize the potential for contaminating the <br />soil. If it proves more efficient, the topsoil may be picked up by <br />scrapers and placed in a temporary stockpile adjacent to the corridor <br />and work area. The stockpile would be marked with the appropriate <br />signs. <br />The work area will be constructed on either side of the channel or if <br />conditions allow, just on one side. The total width of the work area <br />will be about 200 feet plus channel width, except for the upstream and <br />downstream gradient ends which will have an approximate 150 feet radius <br />cleared around the ends. The work area will be stripped of topsoil, <br />approximately 18 inches deep, prior to commencing work on the channel. <br />The topsoil will be windrowed to the side and appropriately marked. If <br />it is more efficient, the topsoil may be picked up with scrapers and <br />transported to a stockpile adjacent to the work area for temporary <br />storage. <br />In the event the topsoil is stockpiled for more than one growing <br />season, it will be stabilized witfr the topsoil stockpile seed mixture. <br />It is Colorado Yampa Coal Company's intention to reduce the amount of <br />disturbance associated with the channel repair. When possible, the <br />areal extent of disturbance will be minimized. <br />• <br />Within the access corridor and work area the exposed spoil will be <br />graded to allow safe and efficient working conditions. Upon completion <br />of the work, the spoil will he regraded to blend in with the <br />surrounding topography. <br />TR89-2~ <br />- 51 - <br />Revised 03/01/89 <br />