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18 July 1984 <br />Page 3 <br />East Pit Plan•1. ---- <br />This plan places approximately 273,000 cu. yds. in the East pit to eleminate <br />any gepmorphological remnants on the eastern wall of the East pit. <br />Approximately 90,000 cu. yds. would be removed from OS N2 to initate filling, <br />and to prepare a scraper haul road into the northern end of the pit. As in the <br />proce dure for the West pit, stairstep lifts would be constructed from the east <br />wall working stepwise downward to the west. Since the east wall is 100 ft. above <br />the southern floor of the East pit, it will require lengthy adverse l0Y and 12% <br />grades to bring fill material up to the top of the east walls. <br />Most of the west wall of the East pit is of a lesser slope than 2:1, so that. <br />roads and terraces built to facilitate scrapers coming from OS #2 will be easy <br />to finish grade. <br />It is estimated it would take more than 7; years to complete this plan. <br />East Pit Plan 2. ---- <br />This plan places approximately 128,000 cu. yds. in the East pit. The same <br />methods are used as in Plan 1, however the adverse grades and yardages are <br />approximately half those in Plan 1. <br />This plan gives a minimum of 20 ft. of cover over the topmost teal seam, and <br />would leave exposed a portion of the Verdos sandstone in places and would leave <br />remnants the Verdos conglomeratic colluvum on the east wall of the pit. These <br />remnants are stable and would blend in with the surrounding terrain visually. <br />It is estimated this plan would be complete in some three years, weather per- <br />mitting. <br />Topsoil replacement would come from topsoil stockpiles 2 and 3. It is felt <br />most of topsoil stockpile 1 will be used in the West pit and the nose of OS ~2. <br />Magpie Diversion and Channel ------- <br />Sedimentation pond "D" at the north end of the West pit would be filled at the <br />last stages of the reclamation of the West pit, and its dewatering equipment <br />and gates removed and the dike eliminated between pond "D" and the Magpie Div- <br />ersion. <br />The small drainage from the remains of the West pit and the confluence of the <br />unnamed drainage to the west of the West pit would meet some 500 ft. upstream <br />of the Magpie diversion. This drainage is dry most of the year and runs only <br />during storms and during the spring runoff periods. <br />Attention is directed to Attachments D, E, F, and L of the approved reclamation <br />plan in Volume 1. These discuss graded channel bottoms, restored channel bottoms <br />