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C. Methods to measure herbaceous cover and production, species diversity, and <br />woody plant density aze discussed in pages 816-150 through SI6-165. These <br />techniques can be found starting on page 779-56aa. The Division approved a <br />change in these methods with the approval of Technical Revision 19, on 11 <br />January 2000 (4.15.7(1)). <br />D. Comparisons between reclaimed and undisturbed azeas, in order to demonstrate <br />that success criteria of 4.15.8, 4.15.9, or 4.15.10 have been met, will be based on <br />the following: <br />Reference azea comparison will be employed when considering reclamation <br />success with production and cover measurements. Reference azeas have been <br />selected for both the mine site and the tipple and have been approved by the <br />Division. Success standards have been selected and supported with literature <br />citations. The Division has approved a woody plant density standard of 1500 <br />stems per acre to apply to both the tipple azea and the mine site. <br />The Division proposes to re-approve the basis for this comparison. <br />E. The Division proposes to re-approve the reference areas which the applicant has <br />selected based on the requirements of Rule 4.15.7(3). <br />F. The reference azeas will be utilized to deternune cover and productivity success of <br />reclaimed azeas in a manner, which the Division finds acceptable (4.15.7(4)). <br />G. Based on information submitted by Kerr Coal on pages 780-78bbb to 780-78eee, <br />the woody plant density standard is 1500 stems per acre (4.15.8(3) and (4)). <br />VII. Protection of Fish, Wildlife, and Related Environmental Values <br />A. The applicant has proposed the use of persistent pesticides on the site during <br />reclamation operations only if necessary. Kerr will consult with the Colorado <br />State University Extension Service to determine control measures. Prior to <br />implementation of any control measure, Kerr will consult with the Division <br />(4.18(4)(g))~ <br />VIII. Operations on Alluvial Valley Floors -Rules 2.06.8 and 4.24 <br />Identification of Alluvial Valley Floors <br />The applicant has identified five azeas within or adjacent to the mine plan area, and one <br />azea within or adjacent to the loadout, which meet the geomorphic criteria of alluvial <br />valley floors. Deposits of unconsolidated alluvial materials were identified along the <br />Marc Mine Permit Renewal 04 <br />11 January, 2002 <br />_22_ <br />