Laserfiche WebLink
mine plan for the East Pit, West Pit and Section 16 Pit, South Taylor Pit and Collom expansion, <br />respectively. Section 2.05.4 of the Permit contains the reclamation plan, and Section 4.14 <br />contains the performance standards for backfilling and grading (Volume 1 for the East Pit, West <br />Pit, Section 16 Pit, Facilities Area and Gossard Loadout, Volume 12 for the South Taylor Pit, <br />and Volume 15 for Collom expansion area). <br />Plans for dealing with and monitoring acid- and toxic - forming overburden are described in Rules <br />2.04.6 and 2.05 of the Permit (Volume 1 for the East Pit, West Pit, Section 16 Pit, Facilities Area <br />and Gossard Loadout, Volume 12 for the South Taylor Pit, and Volume 15 for the Collom <br />expansion area) and in Section B, Item III of this document. Acid - forming overburden has not <br />been encountered at Colowyo; however, monitoring continues for materials with high sodium <br />adsorption ratios. <br />The Division added stipulations No. 2 and No. 8 to the operations and reclamation plan for the <br />Colowyo Mine with approval of PR -02. Stipulation No. 8 was complied with and terminated <br />with the submittal of TR72 on March 14, 2008. Stipulation No. 2 remains in effect. <br />STIPULATION 2 <br />PRIOR TO DISTURBING ANY LANDS IN THE LOWER WILSON AREA, THE <br />COLOWYO COAL COMPANY SHALL PROVIDE THE DIVISION WITH A PERMIT <br />REVISION CONTAINING A MINE PLAN AND A RECLAMATION PLAN AND ANY <br />ADDITIONAL BASELINE MONITORING INFORMATION (SURFACE WATER, GROUND <br />WATER, SOILS, VEGETATION, ETC.) REQUESTED BY THE DIVISION. THE <br />APPROVAL OF PERMIT REVISION 02 IS ONLY AN APPROVAL FOR DISTURBANCE <br />IN THE SOUTH TAYLOR PIT (SOUTH TAYLOR PIT, WEST VALLEY FILL, EAST <br />VALLEY FILL AND ASSOCIATED STRUCTURES). NO DISTURBANCE IS APPROVED <br />FOR THE LOWER WILSON AREA WITH THE APPROVAL OF PERMIT REVISION 02. <br />B. Contemporaneous Reclamation <br />Section 4.13 of the Permit contains information on contemporaneous reclamation for Colowyo's <br />multi -seam operations, with additional information found in Sections 2.05.4 and 4.14 (Volume 1 <br />for the East Pit, West Pit, Section 16 Pit, Facilities Area and Gossard Loadout, Volume 12 for <br />the South Taylor Pit and Volume 15 for the Collom expansion area). Backfilling and grading <br />cannot begin with multi -seam operations until the lowest seams are mined. Therefore, backfilling <br />and grading cannot be completed within 180 days of the removal of the uppermost coal seams. In <br />addition, the number of spoil ridges may exceed four at multi -seam operations. <br />In addition, variances from contemporaneous reclamation have been granted to accommodate <br />high -wall mining operations. <br />Colowyo Coal Mine C1981 -019 PR -03 57 April 10, 2013 <br />