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• <br />C~ <br />hence the waste dump area will be broadcast seeded manually. The <br /> <br />depth of seed drilling will range from 0.5 to 1.0 inch. All broadcast <br />seedings will be hand raked. <br />The final slopes of the reclaimed affected land will not exceed a <br />slope of 1:1, horizontal to vertical ratio. This slope, located at <br />the waste dump, will not be too steep to be traversed by livestock. <br />Based upon the climatic features at the mine site, Cotter Corp- <br />oration will begin seedbed preparation and seeding operations during <br />the late April to early f4ay period. This will insure that seed germin- <br />ation takes place during conditions when soil and ambient air temperatures <br />are warming concurrently with increased soil moisture and precipitation <br />totals. <br />Due to the fact that the predominate portion of the aff~=_cted land <br /> <br />is in the flat-lying terrain adjacent to Ralston Creek, slope and soil <br />stability will be assured by the use of straw mulch: The sl~~pe of the <br />waste dump will be stabilized by regrading it to less than the angle of <br />repose. <br />An integral part of the reclamation plan will be the ap~~lication <br />of a four to six inch loamy topsoil horizon to the affected land along <br />the Ralston Creek valley bottom. Soil stability will also be assured by <br />the fact that the topsoil material will be dumped and spread over the <br />affected land with earthmoving equipment, watered and compacted. <br />Imported soil materials to be revegetated will be compa~:ted to insure <br /> <br />against subsidence and severe erosion but not to such a high bulk density <br />that water and root penetration in the upper portion of the soil horizon <br />is reduced. The final seedbed should be firm but not heavily compacted <br />below the 2 to 3 inch depth. The final tillage operation be Fore seeding <br />E-10 <br />