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Section 816.111 (b) Con tirued. <br />• 60 percent. Plant cover data taken.in 1979 indicated that the <br />total cover on the site was 89 percent. Comparison of these cover <br />values with those found on Table 41, Comparison of Available Cover <br />and Production Data on Energy Ptines No. I and 2, indicates that for <br />the voluntary reclamation done in 1974, approximately five years <br />are needed before total ground cover values are similar. On more <br />recent reclamation tracts, such as Area 10 where forage production <br />tl~e first growing season was equal to that found on the 1974 seeding <br />after nearly two and one half years, it is estimated that cover <br />will reach premining levels after approximately three years. The <br />erosion potential from surface mined lands then, from the standpoint <br />of ground cover, should be not greater than those found on natural <br />areas. According to 30 CFR Section 816.112 which requires that the <br />vegetation be capable of controlling erosion, it can be concluded <br />that the plant species proposed for the three revegetation seed <br />mixtures are capable of providing the soil stabilization needed to <br />• control erosion. <br />Section 816.112 Revegetation: Use of introduced species. <br />Introduced species, may be substituted for native species only if <br />approved by the reo latory authority ender the following conditions: <br />(a) After appropriate field trials have demonstrated that the intro- <br />duced species are des cable and necessary to achieve the approved <br />postmining land use; <br />Examination of the three seed mixtures proposed for reclamation of <br />rangeland, cropland, and pastureland indicates that Energy Fuels <br />desires to include in the mixtures some introduced species for <br />which regulatory approval is required. <br />• <br />Pastureland }fixture <br />816-142 <br />