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• 2.05.3 <br />4 0.0 -0- <br />5 1.2 6.5" 1000 <br />6 0.6 8.2" 700 <br />Totals 48.7 190300 <br />Additionally, there is a topsoil stockpile associated with the gob pile. <br />According to Volume IV, Appendix C, Calculation Worksheets, the maximum <br />amount of topsoil which will be contained in this stockpile is 3,111 cubic <br />yards. <br />A projected 24,000 cubic yards of topsoil will be stripped and stockpiled for <br />the construction of the unit train loadout. This projected quantity is based on <br />an average 30-inch depth where topsoil is projected to be present within the <br />disturbed area including the disturbance associated with Ponds J & K. The <br />topsoil will be stored in topsoil stockpile F. As per Rule 4.06.2(2)(a)(ii) a <br />variance from topsoil removal may be granted by the Division for good cause <br />. shown. The area under the coverfill pile should qualify for a variance <br />because removal would result in needless damage to soil characteristics as <br />foffows: <br />1. Soil horizons would be destroyed. <br />2. The natural configuration of the land would be altered. <br />3. The oxygen will be cut off from the topsoil whether it is buried or <br />placed in a large stockpile. Therefore, changes to the chemical and <br />biological properties of the topsoil should be the same. <br />Therefore, the topsoil under the coverfill pile will be left in place. A woven <br />geotextile fabric such as Amoco 2006 will be placed under the footprint of the <br />coverfill stockpile to separate the underling topsoil from the coverfill soil. The <br />gotextile is designed for separation, stabilization and reinforcement. Some <br />of the properties of Amoco 2006 follow: 1) Grab Tensile Strength - 315 <br />pounds; 2) Tensile Elongation - 15%; 3) Wide Width Tensile - 2100 pounds <br />per foot; 4) Wide Width Elongation - 25%; 5) Mullen Burst - 600 psi; 6) <br />Puncture - 120 pounds; 7) Trapezoidal Tear - 120 pounds; 8) UV <br />Resistance - 70% @ 500 hours; 9) Apparent Opening Size - 0.425 mm; 10) <br />Permittivity - 0.05 sec'; 11) Flow Rate - 4 gallon per minute per square foot. <br /> <br />PR-06 <br />2.05 - 36 - 12/01 <br />/~pPRovE~ <br />~~IS/oZ <br />