Laserfiche WebLink
0 3.6.3.1 Regraded Spoil Preparation <br />Regrading, shaping, and surface leveling generally follow the same procedures as croplands (refer to <br />Section 3.6.2.1). The primary exception is that rangeland areas generally occur on steeper slopes and <br />less effort is expended during recontouring to produce a smooth even surface suitable for farm <br />machinery. In fact, a roughened surface with maximum micro-habitat diversity is encouraged on <br />rangeland areas. Therefore, recontoured spoils are not dragged nor are rocks removed. <br />3.6.3.2 Topsoil Replacemertt <br />As of December, 1987, Trapper Mine replaces the equivalent of approximately twelve inches of topsoil <br />on regraded lands being returned to rangeland that were disturbed prior to May 3, 1978, and have not <br />had topsoil replaced as of December, 1987. The equivalent of approximately twelve inches of topsoil <br />will be replaced on regraded lands being returned to rangeland that were disturbed after May 3, 1978 <br />(also see Section 4.9.4) and have not had topsoil replaced as of December, 1987. This takes place <br />during the summer and tall as does cropland soil redeposition. <br />• Monitoring will be similar to that found in Section 3.6.2.2. If sampling indicates a mean topsoil depth of <br /><6 inches replaced topsoil on an area > one half acre, additional soil may be added to reach the <br />desired depth. See Section 4.9.3 for depth variances. <br />Soil not suitable for cropland that had been stockpiled or is in the process of removal is applied to <br />reclaimed rangeland areas. <br />Soil depths for replacement to yield the required depth will vary slightly depending upon individual soil <br />compaction characteristics. <br />PR-3 _ <br />• 3-82 ?'EViSION APPROVED <br />DATE