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Revised May 26, 1992 <br />It should also be clarified that consistent with Map 6, Soils - <br />South, there will be small areas of rock outcrop, rocky steep <br />slopes, etc. where the topsoil depth is 0 inches. where this <br />occurs there will not be an attempt to recover topsoil or otherwise <br />disturb the area before disturbance by mining. <br />Colowyo does not plan to use overburden material for topsoil <br />substitutes or as a supplement to topsoil. Colowyo will remove <br />topsoil before any mining operations commence and always maintain <br />a buffer zone between the area stripped of topsoil and the <br />overburden drilling and blasting operations. As depicted on the <br />Topsoil Handling Map (Map 28), the topsoil handling program will <br />result in an orderly sequence for the continuous removal, storage <br />or reapplication of topsoil. The redistribution of topsoil will be <br />done at a time when the physical and chemical properties of the <br />topsoil can be protected from alteration while minimizing the <br />potential for erosion. <br />• Topsoil and vegetation matter is windrowed during initial sediment <br />'i pond construction then typically re-spread onto the outslope of the <br />_, pond embankment to facilitate revegetation and erosion control. <br />The pond embankments are constructed utilizing in-place materials <br />directly below the upper topsoil zone. This colluvial material is <br />"topsoil" in nature and will be utilized at a future date for pond <br />reclamation. Since the nature of the embankment material functions <br />readily as a topsoil material no additional topsoil will be <br />required for final reclamation of the site. <br />4.06.3 Storage <br />The estimated quantities of topsoil to be stockpiled are found in <br />Section 2.05, Table 1, Topsoil Schedule for Mining Area. As can be <br />seen from this table, topsoil stockpiles exist for support <br />facilities and the mining area. All of the existing or proposed <br />stockpiles result where immediate redistribution will not be <br />practical, either because redistribution areas are not available at <br />• the time of topsoil removal, or because more topsoil is being <br />4.06-2 <br />