Laserfiche WebLink
8.0 Topsoil Storage <br />All efforts will be made to direct haul and place all topsoil excavated. When the direct haul of topsoil is not <br />feasible, the topsoil will be stored in stockpiles. <br />Stockpiling of topsoil will be required for topsoil removal in the initial box cut, haul road, spoil stockpile <br />areas, sediment pond, shop area, and final pit/highwall reduction areas. Topsoil stockpiles will either be <br />located in areas that will not be disturbed by the ongoing mining operation or in freshly backfilled areas <br />prior to topsoiling. This will be necessary especially at the end of mine life and on Morgan property prime <br />farmland in order to insure that topsoil is placed correctly for the post mine land use. Stockpiles will also <br />be place in areas where the stored topsoil will not be lost to wind erosion or surface runoff. When a topsoil <br />stockpile is placed, it will not be moved until soil is needed for distribution on graded areas, or is <br />consolidated into other existing stockpiles. Stockpile locations were also evaluated and selected to <br />minimize truck travel distance, to reduce equipment cost, and to increase efficiency. <br />.. .. <br />11RIN1112pit.19 to <br />serve as continuing reminders to personnel that stockpile areas are to be preserved and undisturbed. <br />Any topsoil stockpile which will remain in place less than 90 days will not be revegetated. The surface of <br />each pile will be left in a roughened condition to retard wind and water erosion. A self- contained grader <br />ditch or berm will be constructed around the perimeter of the stockpile to prevent loss of the topsoil <br />resource. <br />Any topsoil stockpile which will remain in place for 90 to 180 days will be stabilized by utilizing an annual <br />grain (barley, oats or wheat) cover crop. The seeding rate will be 70 pound per acre broadcast. <br />Protection and maintenance of "long-term" topsoil stockpiles will begin when a stockpile is temporarily or <br />fully completed and no more additions or withdrawals of topsoil are to be made within a 180 day time <br />period. Topsoil stockpiles will be stabilized primarily by perennial plant establishment. The seed mixture, <br />and seeding rate for long -term topsoil stockpiles is described in the Revegetation Plan, Section 2.05.4 <br />(2)(e). <br />Establishing vegetative cover will aid in overall stabilization and erosion control of stockpiles. Vegetative <br />cover will aid in reducing runoff and raindrop impact and will increase moisture infiltration by maintaining <br />the upper soil surfaces in a friable, noncrusted condition. Organic matter, soil nitrogen, and microorganism <br />August 2013 (PR -08) 2.05.4(2)(d) -15 <br />