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<br />EXHIBIT C <br />MINING PLAN <br />A. MIPIING DATES <br />Mining will commence on or about March 30, 1999, or as soon thereafter permits are approved and <br />will continue until the completion of the Interstate 70 project (COOT IM (CX) 070~(141)at <br />Limon, which is estimated to be 230 working days. Reclamation will complete by the time the <br />project is finished. <br />B. TOPSOIL REMOVAL AND STOCKPILING <br />Approximately one-half foot of topsoil is present and will be removed from the mining azea and <br />stockpiled along the north side of the permitted area as shown on the Exhibit E Mining Plan Map. <br />The topsoil will be placed back on the reclaimed area during the cover operations. <br />Any runoff from the stockpile will be contained in the pit area No drainage ways will be blocked <br />by contact the stockpile of topsoil. <br />Topsoil replacement will be complete by as soon as the project is completed, which will be in the <br />Fall of 1999. <br />C. ESTIMATED DEPTH OF OVERBURDEN <br />No overburden other then the topsoil will be removed. <br />D. DEPOSIT THICKNESS <br />The depth of the sand deposit is approximately 7-] 0 feet. <br />E. MAJOR COMPONENTS OF THE MINING OPERATION <br />1. A bulldozer will be used initially to open an area of ground to the depth of the sand deposit, <br />which is approximately .5 feet below the surface. <br />2. Excavation is in a terrace situation, with the floor elevation below the known water elevation. <br />The excavation operation will not require any type of de-watering. <br />3. This operation will be affected by Colorado water laws. No ponds will remain to evaporate <br />water, nor will any water course be interrupted. No change in the existing runoff pattern will result. <br />A well permit has been applied for from the State Engineers office for the replacement water <br />needed. <br />4. This sand and borrow excavation is into virgin ground, except for the exposed slopes. It is not <br />anticipated any foreign materials will be encountered. If same were encountered, they would be <br />disposed of in a manner to prevent unsightliness and protect the drainage system from pollution, as <br />determined for the specific material. <br />