1987-03-27_REVISION - C1981038 (6)

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COLORADO WESTMORELAND INC. III IIIIIIIIIIIIIIII 999 _ Doc 1)ate:12/11/2001 P.O. Box 1299 Paonia, Colorado 81428 O 303-527-4135 March 25, 1987 ," • suesioia av ar wesrMOae~nrvo COOS COM~n rvv u r ~ ... Mr. Thomas A. Schreiner, Reclamation Specialist Colorado Mined Lartd Reclamation Division 423 Centennial Building 1313 Sherman Street Denver, Colorado 80203 RE: TECHNICAL REVISION APPLICATION, PERMIT C-83-0 8, ~ARD VALLEY MINE ROCK SLOPES Dear Tom: R~~~~~~® G1AR ? 7 1987 MIiVtO ~,rvU RECLAMATION DIVISION Colorado 4Jestmoreland Inc, (CWI) had designed the new Orchard Valley West Mine to he an interim coal haulage facility until access to the coal reserve from the Orchard Valley Mine (OVM) was constructed, allowing utilization of the existing coal haulage facilities. After evaluation and consideration of exploration data at the OVM site and safety and economic feasibility analyses to determine the best access location, CWI has designed, with the assistance of Golder Associates of Golden, Colorado, rock slope portals and entries below the fire damaged OVM to intersect with the First West Mains being developed from the Orchard Valley West Mine. This technical revision application addresses the construction of the rock slope portals and entries, as well as rock fills to be constructed from development rock. Two or three portals and entries would be driven utilizing drilling and blasting methods, a road header rock miner or a combination of the two methods. As the portals and rock fills would be constructed on previously disturbed areas, no revisions to the drainage, topsoil, vegetation, reclamation or final reclaimed configuration plans are needed. The portal and parking lot levels would be backfilled per approved reclaimed configuration designs and would, in fact, reduce the amount of reclamation upon final abandonment. The rock slopes technical revision application is contained in one volume, di- vided into four sections - Application Form, Text, Attachments and Maps. The Text portion lists each part of the Colorado Mined Land Reclamation Board Regu- lations and discusses any changes or additions to the text in the existing ap- proved permit applicable to the rock slopes construction. Upon approval of the technical revision and before the end of the required public notice period, re- vised pages for the existing permit would be submitted to the Division. The At- tachments Section contains supplemental information such as laboratory analyses, appurtenant correspondence, reclamation cost calculations, etc. referenced i'n the text. The Maps Section contains all revised maps, drawings and designs. C41I plans to begin construction of the rock slopes on June 15, 1987. Recently ~ though, CWI has been experiencing problems with coal quality in the Orchard Val- ley West Mine. Quality is projected to improve as the South III Submain is ad- vanced north, but should the problem persist, creating continued difficulty in ;.~ ~~