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• DRMS was requested to lower the success standard for woody stem density as the reference <br />area contained over 3,500 stems per acre. It seemed unlikely that this standard could be <br />achieved within the ten year bond release period without replanting the seedlings. Through <br />TR45, DRMS reduced this density to 500 stems per acre. <br />• As per Greystone Consultants, a variance application requesting 24 inches of soil cover would be <br />appropriate given the vegetative and soils data collected to date and with data collected at other <br />mines in the state which indicate that revegetation success can be achieved with a 24 inch soil <br />cover. <br />A copy of Greystone's report is included at the end of this section as Appendix "A ". In response to <br />TR45 application, DRMS lowered the cover requirement to 30 inches with a minimum of 12 inches of <br />topsoil. <br />V.H Removal, Storage and Redistribution of Topsoil and Subsoil <br />All areas to be disturbed at any time during the construction, operation, or reclamation of the mine <br />and its surface facilities will have available topsoil or other suitable growth media separately removed <br />and segregated from other fill material. Available topsoil was determined from the soil assessment <br />contained in Section 11.1. Topsoil or other suitable growth media are stockpiled in various locations to <br />be used during final reclamation. Disturbed areas to be covered with topsoil are indicated on Maps <br />43, 44, 45 and 46 ( "D" Portal), Map 55 (Water Tank Area), Map 92 (Alluvial Wells), Map 89 <br />(Ventilation Entry), Map 77 (Refuse Area 1), Map 77A (Refuse Area 5a), Map 150 (Refuse Area <br />2/3/4), Map 151 (B Seam ventilation shaft and access) and Map 104 (railroad loadout area). Roads <br />which are to be reclaimed will be covered with topsoil as shown on Map 69 (Haul Road) and Map 55 <br />(Water Tank Road). In addition, all areas disturbed during the removal of roads, conveyors, or utilities <br />will be covered with topsoil. A summary of the disturbed areas is shown in Table V -3. <br />Before the removal of the topsoil, all trees and large brush are cleared and placed in windrows. <br />Grass, weeds and small brush are not separated from the topsoil. Grass, weeds and small brush <br />intermixed with the topsoil aid in preventing over compaction and adds organic material to the <br />stockpiled topsoil. <br />Topsoil is stripped and transported to the stockpiles by scrapers or front -end loaders and trucks. In <br />some cases where large amounts of rock fragments are intermixed with the topsoil, it might be <br />necessary to strip the topsoil with dozers and then transport it to the stockpiles via front -end loaders <br />and trucks. In order to prevent over compaction during stockpiling, compaction water is not used and <br />driving over the deposited soil is limited to only that which is necessary to stockpile the material. <br />During construction, topsoil was stripped to various depths depending on soil type and site specific <br />conditions, as indicated on Map 28 ( "D" Portal Area), Map 52 (Water Storage Area and Access <br />Permit Renewal RN -6 (0412014) V -23 <br />