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2.05.3(2) Operation Description -Permit Area <br />• Underground coal mining operations began in the permit area in 1899 and have <br />run intermittently until the present time. Operations using current mining methods <br />began in 1974. From 1974 to 1999, approximately 243 acres of surface lands were <br />disturbed in conjunction with mining operations. Disturbance of additional surface <br />lands during the life of the permit is only planned at Cameo Borrow Area No. 2. <br />Exhibits 6A through 11A, 13C, 51 and 52, Tab Section 13 show the location of each <br />disturbed surface area and Table 3-1 describes the buildings and structures in each <br />area. In the period from 1974 through 1999, a total of 3,524 acres were affected in <br />conjunction with underground mining activities. Between 1993 and 1997, 566 acres <br />were affected. Table 12-1 presents areas disturbed to date. Table 12-2 presents the <br />acres affected by the North and South Portal workings through 1999. The <br />underground mining sequence and aerial extent of affected lands is depicted in Exhibit <br />• 5 and Appendix 12-2. <br />The revised Exhibit 5, Life of Mine plan for the "B" Seam is attached. Mining <br />ceased at the Roadside Portals on December 2, 1999. The North Mine was sealed <br />during January and February 2000. The Roadside South Mine will be sealed during <br />the first half 2000. <br />C-SEAM EXPLORATION <br />In September 1999, all C-Seam coal production was halted after a decision to <br />suspend the operations of the mine was made. Better quality coal and better mining <br />conditions found in the Cameo B Seam retreating section allowed the operator to mine <br />coal at the most efficient levels during the months leading up to the suspension. <br />The following is a summary of the rationale for mining the C-Seam, the <br />conditions found while mining and the mechanism employed in the mining of the C- <br />• Seam. <br />Volume 3 Tab 12 12-3 5/00 <br />