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,~ <br />MINING PLAN <br />EXHIBIT D <br />BARTLEY GRAVEL PIT (112) <br />Section 15, T40N, R19W, NMPM <br />Expansion of the mining area west and north of 110 Permit <br />No. 84-155 is expected to be required late in the fall of 1986 <br />upon completion of the southerly parts of the presently <br />permitted area. Topsoil remaining on that southerly portion <br />will be dozed west to the existing topsoil stockpile and the <br />remaining sandstone resources ripped and dozed into a stockpile <br />in the "worked out" pit floor immediately to the north. <br />Stockpiles of prepared "product" will then be loaded into trucks <br />for transport to western county road construction and <br />maintenance projects. (See Fig. 1) <br />Following depletion of the resources in the south part of <br />the 110 permitted area topsoil will be shifted to the graded, <br />worked-out pit floor. <br />Topsoil and overburden will then be stripped from the <br />newly permitted (112) Area "A" and stockpiled to either side in <br />the completed southerly end of the 110 permit and westerly <br />adjacent to the new Excavation Area "A". Sandstone resources <br />will be ripped and dozed into stockpiles to the north to be <br />hauled away. Resources should be depleted from Excavation Area <br />"A" late 1986. (See Fig. 2) <br />Succeeding excavations B, C, ~ D will proceed north to <br />northeast along the gas pipeline right-of-way to the northeast <br />boundary corner of the new (112) permitted area. <br />Units for excavation at a particular time are limited by <br />the practicality of moving topsoil and rip-loosened sandstone <br />gravel product by bulldozer. It has been demonstrated that <br />dozing cannot be cost effective over distances greater than 200 <br />to 300 feet. '~Jork units then shall be limited to approximately <br />three acres at a time, although preparations for a fresh area <br />may begin while finishing the on-going area. <br />After depletion of recoverable resource southeast of the <br />pipeline right-of-way, excavation will proceed west and <br />southwest from the northeast corner of the permitted area, using <br />worked out areas to stockpile topsoil and prepared gravel <br />product where practical. All of the permitted area, except the <br />fifty-foot wide pipeline right-of-way, is considered to be major <br />disturbance, since it is all excavated and utilized for <br />processing before reclamation topsoiling can begin. <br />