Laserfiche WebLink
4.0 - Revegetation Methods - Reclaimed Irrigated Pastureland <br />A significant acreage of the revegetated areas will be returned to a postmining land use of <br />irrigated pasture including lands within the permit area which have not been disturbed, but which <br />have had irrigation water shut -off in order to better control and manage surface and ground water <br />within the mine area during operations. Map 2.05.4 -5 shows all Reclaimed Irrigated Pasturelands <br />as well as all other post -mine land uses. <br />4.1 Topsoil Replacement - General Comments <br />Topsoil replacement operations may be carried out during most of the year, the exception being <br />those periods when wet conditions would preclude handling of the topsoil materials. Prior to <br />replacement of topsoil, the graded spoil will be ripped to reduce compaction. Detailed topsoil <br />handling and replacement plans are provided in Section 2.05.4(2)(d), Topsoil (Redistribution). <br />Prior to final seedbed preparation, soil conditioning and weed control tillage will be carried out <br />through the use of ripping and disking. Ripping or deep disking will relieve any topsoil <br />compaction, will aid in controlling weedy species, and will leave the site in a temporary roughened <br />condition reducing wind and water erosion potential. Disking will be used to condition soil, break <br />up clods, and control weeds through tillage prior to seeding. If annual weeds are a problem, <br />several tillage operations maybe required to get adequate control. Harrowing prior to seeding will <br />be conducted as needed in order to provide the smooth, firm seedbed required. In any areas that <br />may be poorly drained, tillage will be timed in order to reduce bogging, excessive compaction and <br />excessive cloddiness caused by tillage when soils are wet. The best period for tillage in these <br />areas may be in the early spring prior to the irrigation season (prior to mid - April). Section <br />2.05.4(2)(d), Topsoil (Redistribution), contains additional information on subsoil and topsoil <br />conditioning. <br />(Revised: PR -06) 2.05.4(2)(e) - 17 <br />