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• r <br />IX. Coal Mine Waste <br />No specific approvals aze granted to the applicant under this section. <br />X. Backfillin$ and Grading <br />Backfilling and grading is discussed under Section 3.5 of Vol. III of the permit application. <br />The Division previously approved the applicant's request for additional time for <br />backfilling and grading following coal removal in a contour strip mine. A detailed <br />written analysis under 2.0~.4(2)(c) has demonstrated that additional time is necessary. <br />The applicant is bonded for a maximum of 4 spoil ridges at any time within each pit azea. <br />Reclamation has historically and is proposed to be completed at approximately the same <br />rate as the disturbance of new ground. (4.14.1) <br />2. In the review of Trapper's application for a permit in 1981, the applicant indicated that' <br />the post-mining topography cannot be absolutely predicted in advance. Consequently, <br />the Division (then the Colorado Mined Land Reclamation Division) attached the <br />following stipulation to the permit. <br />Stipulation No. 10: <br />THE DIVISION DIRECTS THE PERMIT-I`EE TO MONITOR THE POST-MINING TOPOGRAPHY OF <br />THE BACKFILLED AND REGRADED SURFACES OF THE DISTURBED AREA AT THE TRAPPER <br />MINE. MONITORING FOR THIS PURPOSE SHALL CONSIST OF A COMOUR MAP (CONTOUR <br />[MERVAL NOT TO EXCEED 5 FEET) PRODUCED FROM AN ANNUAL SURVEY UTILIZING FIELD <br />OR AERIAL PHOTOGRAMMETRICTECHNlQUES ACCEPTABLE TO THE LIIVIS[ON. THE POST- <br />MINING TOPOGRAPHIC MAPS SHALL BE SUBMITTED TO THE DIVISION FOR REVIEW AND <br />APPROVAL ON AN ANNUAL BASIS, COMMENCING IN JANUARY 1984. <br />XI. Reveeetation <br />The Division previously approved Trapper's revegetation plan as set :forth in Section 3.6, <br />Vol. III of the permit application. The plan is summarized below. <br />The applicant will use introduced species in the reclamation seed rnix. The applicant has <br />submitted information which shows that the introduced species aze desirable and <br />necessary to achieve the approved post-mining land use, and aze n~~t poisonous or <br />noxious. (4.15.2). <br />2. Methods to measure herbaceous cover and production, species div.rsity, and woody plant <br />density are discussed in section 4.4.1 of Volume IV of the permit trpplication. <br />The cover standazds aze based on cover which will keep soil loss, riue to rill and sheet <br />erosion, to less than 4 tons per acre per year based on the application of the Universal Soil <br />Loss Equation. These standazds call fora 52% effective cover on flange sites A and B <br />Trapper Mine 26 May 1?, 1998 <br />