REV98873 - Laserfiche WebLink

Home Browse Search

8-21-1997 3:35PM FROM ENG. WEST ELK MINE 970 9295050 ~ Mourrtain Coal Company waet F.tc RWv Past Oflloe Sax 591 SornsrseR Colorado 87496 Tdephar 4J49bb015 i August 20, 1997 Mr. Michael Boulay Colorado Division of l~imerals and Geology 1313 Sherman Street, Room 215 Denver, CO 80203 P. 2 RE: Minor Revision No. 220 (Material Storage Bench Expansion); West Elk Mine; Permit No. C-80.007 Dear Mike: Mountain Coal Company (MCC) has reviewed the Division's additional adequary questions regazding the above referenced minor revision and provides the following additional information. Issues previously addressed are not included in this letter. 2. The SEDCAD for watershed 21 has been revised to account for the area now disturbed within the watershed. The oew run should be placed in Exhibit 66. DCW-1 was also revised with the new discharge from watershed 21. This ditch design should replace the three designs in Exhibit 66. Also enclosed is a revised Table 43 and 44. MCC has included the discussion presented in previous response letters and the discussion presented in this response letter in the permit text, which is enclosed. The 2,000 - 3,000 CY of material will remain in the portal bench storage bench and at the slope below the mine supply storage light-use road. These two areas and the MS$ will be reclaimed such that the area will be stable, the hydrologic balance will not be impacted, topsoil will be salvaged, stored and replaced, and the disturbed areas will be revegetated. Map 58 and 58A show that these areas will be returned to AOC. 6. As Map 53, Map 53B, Table 36 and Table 36A are revised for future revisions, they will be updated to make the locations of topsoil stockpiles more clear. 7. The bond estimate is acceptable. :~ S' c ely, Cluistine E. Johnstc Permitting Specialis cc: Norm Every, Phil Schmidt, Kathy Welt ~zodaoc