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2.05.4(2)(c) Backfilling and Gradingcontinued) <br />Mine yard area: The mine yazd azea was reclaimed to the approximate original contour <br />in 1992 although its final elevation was approximately 5 to 8 feet higher than the pre- <br />mining elevation. At the request of the landowner (see pages 187.1 a-b), the building <br />and access road are to remain after reclamation for storage of ranch equipment, etc. <br />1) The sediment pond dam will remain intact to provide flood control for the building <br />and the road entrance to the building and for water availability for livestock. The Trout <br />Creek side of the dam has riprap protection which has served well over the years in <br />preventing the Creek from entering the property. The landowner immediately <br />downstream, Bob Baumgartel, has had problems with Trout Creek flooding his property <br />and he is continuously looking for additional rock to serve as rip rap along the banks of <br />the Creek at his site. The landowner of the mine site, Bernard Knott, also desires to <br />maintain the dam for the purpose of flood control. If taken out, high water would create <br />a peninsula of land at the closest corner of the building, which would be vulnerable to <br />flood-caused erosion. The landowner does desire that the cinder block emergency <br />spillway be removed and graded to the same level as the dam. The dam and pond is <br />compatible with the post-mining land use of rangeland. <br />2) A small amount of topsoil from the existing access road will be excavated and <br />placed on top of the spillway area (8' x 15'). This can also be done with a small loader <br />since the access road is adjacent to the pond. <br />3) The east berm will be excavated to the same level as the existing field. This material <br />is very gravelly and will make good roadbase, therefore, it will be placed on the access <br />road to replace the topsoil that was excavated. The current berm is approximately 14 <br />feet wide and averages 1.6 feet high. The approximate volume is 1.6 ft x 14 ft x 210 ft. <br />= 4704 cubic feet or 174 cubic yards. A small 5 to 10 yard truck and small loader must <br />be used to load and place this material. The 174 cy is slightly greater than the 121 cy <br />of topsoil removed from the road, therefore, any excess will be used to raise the road <br />with a slight crown in the center which is better for future road runoff handling and <br />maintenance. <br />4) The areas of the berm, sediment pond and upper part of the dam will be re-seeded <br />according to the approved plan. This total area is approximately 0.24 acres for the pond <br />and dam, 0.07 acres for the east berm. The west berm has been contoured to blend into <br />the terrain and will not be re-disturbed. <br />Ali of these items are shown on the Final Contour Man which is enclosed following <br />this page. <br />P 183 <br />Tl~ l3 <br />