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groundwater table. This map, in conjunction with a map of the reclaimed surface <br />contour, delineates those areas suitable for isolating the oxidized coal. <br />XI. Revegetation <br />The applicant has proposed a revegetation seed mix composed of predominantly native <br />grasses, fortis, and shrubs, and provided the required justification for the use of the two <br />introduced species in the seed mix. The permit application contains a discussion, Section <br />F, page 9, of the introduced species. <br />The applicant has stated that no pest or disease control will be used on site. Noxious <br />weeds will be controlled according to Colorado State University Extension Service <br />recommendations. Weed control measures will be previously approved by the Division <br />before implementation. <br />The operator has committed to conducting a biennial revegetation monitoring program. <br />The details of the program are outlined in Walden Coal Company's response to <br />Stipulation 5 of the 1983 permit approval and in Section F of the permit. <br />In several aeeas of the permit, the applicant has stated that Division regulations will be <br />superseded by Bureau of Land Management regulations with respect to the haul road <br />across Bureau of Land Management surface. The BLM has agreed to accept Division <br />requirements for reclamation and revegetation. <br />The operation is in compliance with the requirements of this Section. <br />The Division approved the use of introduced species in the reclamation seed mix. <br />The applicant has submitted information which shows that the introduced species <br />aze desirable and necessary to achieve the approved post-mining land use, and aze <br />not poisonous or noxious. The permit application contains a discussion, Section <br />F, page 9, of the introduced species. (4.15.2). <br />2. The Division approved the use of a mulch of 2 tons/acre of straw as a means to <br />meet soil stabilization requirements. (4.15.4). <br />3. Methods to measure herbaceous cover and production, species diversity, and <br />woody plant density are discussed in Appendix B of the permit. These techniques <br />include the use of two reference areas to determine reclamation success. <br />Sampling studies were designed to quantify species composition, cover, <br />frequency, and density for the two vegetation types. Herbaceous layer <br />productivity studies in both community types were conducted using a harvest <br />method. Shrub cover, frequency and density were obtained using the Lindsey <br />Bourg Strip Mine. C-81-021 24 August 4, 1998 <br />