Laserfiche WebLink
will be sufficient to achieve successful revegetation on the regraded areas. This <br />determination is based on an evaluation of the salvaged material as well as the surficial <br />material over which the topsoil will be respread. <br />A portion of the remaining disturbed area will be retained as a ranch road which existed <br />prior to the mine. In the aeeas where the rood will be left, it will be reduced in width and <br />outslopes will be reclaimed. <br />A portion of the mine bench will not be topsoiled. These aeeas consist of fill which was <br />used for grading the road and original ground. Prior to issuance of the initial permanent <br />regulatory program permit, the applicant supplied analyses from grab samples of this <br />material. Although these analyses indicated that the material is suitable for reclamation, <br />it was insufficient for the determination of reclamation feasibility. A stipulation was <br />subsequently attached to the initial permit which required the applicant to provide further <br />analyses of the fill taken to a depth of four feet. The samples taken in response to the <br />stipulation were composite samples taken to a depth of four feet. The analyses indicated <br />slightly elevated SAR levels and an elevated salt level. None of these levels would create <br />a problem during reclamation if proper cultural treatments aze used. However, it was not <br />evident whether one distinct layer was elevating these levels or whether the chemical <br />chazacteristics were uniform throughout the four foot sampling depth. <br />In general, the surface layer is the zone where any degradation of soil chazacteristics <br />occurs on a mining operation through such things as deposition of coal, watering for dust <br />suppression, and deposition of sale leached from neazby coal stockpiles. If the surface <br />layer has been degraded by surface activities, this layer can easily be isolated during <br />regrading. <br />The applicant proposes to test the soil and add the appropriate fertilizers one yeaz after <br />seeding and planting. The applicant's justification for this is that fertilization prior to <br />seeding will encourage undesirable weedy species to invade the reclaimed site. The <br />Division agrees with this contention in part. However, because phosphorous is relatively <br />immobile and does not readily leach into the soil, it is best to incorporate it into the soil <br />prior to seeding. The following stipulation is therefore necessary. <br />Stipulation No. 7 <br />TOPSOIL MUST BE ANALYZED FOR FERTILIZER ELEMENTS (N,P,K) PRIOR <br />TO SEEDING. IF THE SOIL IS FOUND TO BE PHOSPHOROUS DEFICIENT, <br />PHOSPHOROUS MUST BE INCORPORATED INTO THE TOPSOIL DURING THE <br />RESPREAD[NG PROCESS. ANY OTHER FERTILIZER ELEMENTS WHICH ARE <br />DEFICIENT [N THE TOPSOIL SHALL BE ADDED AFTER ONE YEARS GROWTH <br />OF VEGETATION AT A TIME OF YEAR APPROVED BY THE DIVISION. <br />38 <br />