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of the Second Park Lateral ditch as shown on Map 2.05.5 -1 Postmining Land Use <br />Map. <br />With respect to the Meehan property, on those areas to the south of Meehan Draw, <br />all of the soil materials which are largely, Progresso (81 PRO and 82 PRO) soils, <br />with inclusions of Pinon (77 PIN) soils (Map 2.04.9 -3, Topsoil Salvage Map) would <br />be stripped as a single unit, with the Progresso and Pinon soils being stripped <br />together at the time of both topsoil salvage and redistribution. Similarly, all of the <br />soils to the north of Meehan Draw on the Meehan property, which are all Pinon (77 <br />PIN and 78 PIN) corresponding to soil polygons 9, 14 and 17, with a very small <br />inclusion of Progresso (81 PRO), corresponding to soil polygon 19, would be <br />stripped in one topsoil removal and reapplication unit. <br />On the Glasier property, which includes mostly Pinon (77 PIN and 78 PIN) soils, <br />corresponding to soil polygons 2, 8, 9 and 10, along with some inclusions of <br />Progresso (81 PRO and 82 PRO soils, corresponding to soil polygons 1, 3, 4, 5, 6, 7, <br />and 11 would be stripped in one topsoil removal and reapplication unit. <br />In addition, the discussion found on PAP pages 12 and 13 regarding the CSU and <br />Plateau topsoil segregation studies will be amended as followings. The paragraph on <br />page 12 commencing with the text "Another reason ..." will be deleted through the <br />second full paragraph found on page 13, which ends with the wording "capability of <br />self - regeneration" and the following narrative will be inserted at the end of the first <br />paragraph of PAP page 12. . <br />Due to inconsistencies in the definition of land use terminology between the OSM <br />and DRMS regulations regarding the terms "Grazingland" and "Pastureland" it <br />has been determined that the best indicator regarding the revegetation potential <br />should be individual plant species response. Therefore, in the following discussion, <br />plant species responses as defined by the two target plant species which are most <br />valuable to the landowner in the postmining situation are addressed. The two target <br />species are Alfalfa and Smooth Bromegrass as these two plants hold the most <br />economic value to the landowner in the post- mining situation. <br />In topsoil segregation and depth studies established in North Dakota in 1974 and <br />monitored from 1976 through 1979, Powers and others (1981) reported on the <br />productivity of Alfalfa planted on plots with subsoil thickness ranging from 0 to 190 <br />cm and topsoil thickness ranging from zero to 60 cm, on mediums ranging from <br />straight subsoil, various depths of subsoil covered by 30 and 60 cm of topsoil and a <br />combined mixed topsoil. When averaged across all years, the highest production of <br />Alfalfa was 2.24 metric tons/ha, which was associated with the 20 cm of topsoil over <br />70 cm of subsoil treatment. Overall average production of Alfalfa averaged 1.50 <br />Page 27 <br />