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1994 Production and Geologic Conditions <br />Approximately 747,000 tons of coal was produced fran the Mine in 1994 under <br />Federal Coal Leases C-37210 and C-27432. Production was sustained from January <br />through mid October when the mine was idled because of the lack of a coal <br />market. <br />Mining at the West Mine during 1994 entailed both panel advance development and <br />pillar retreat extraction. Panel Y was pillared from the end, crosscut 54, back <br />to crosscut 26. Panel Z was advanced to the end (from crosscut 22 - 44) and <br />pillared back to crosscut 15. The 1st East Mains and Panel X were developed. <br />See Map No. 2-5 which presents the location of the mining performed during 1994. <br />Panel Y: <br />Mined Length: Panel Y was developed on advance in 1993. In 1994 <br />approximately 3600 feet of the panel was pillared. <br />Overburden Thickness: <br />Varying fr®n 1,000 to 2,000 feet. <br />Mining Height: 9-11 feet on advance; 15-18 feet on retreat. <br />Roof: Comprised of mudstones tending to air slack. Top coal of 2-3 <br />feet in thickness was left on the roof to prevent problems <br />• associated with this strata type. Top coal of 4-5 feet is <br />left on the roof in high cover azeas. <br />Ribs: Rib were fair under cover less than 1600 feet. Rib were poor <br />in azeas with cover over 1600 feet. <br />Floor: The lower "D" seam was used as floor which provided competent <br />conditions. <br />An~nalous Conditions: <br />Small seeps from both roof and floor sources were encountered <br />on development and resulted in muddy areas and temporary <br />pools of standing water. <br />Panel Z: <br />Mined Length: Approximately 2700 feet of panel advance development followed <br />by approximately 3800 feet of pillar extraction upon retreat <br />fran the section. <br />Overburden Thickness: <br />Varying from approximately 1,250 to 2,000 feet. <br />Mining Height: 9-11 feet on advance. 15-18 feet on retreat. <br />Roof: Cong~rised of mudstones tending to air slack. Top coal of 2-3 <br />• feet in thickness was left on the roof to prevent problems <br />associated with this strata type. Top coal of 4-5 feet is <br />left on the roof in high cover areas. <br />