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conclude the C horizon is suitable for salvage; b) the mixing of A and B lift topsoil <br />was in violation of the regulations; c) the mixed AB lift materials were not shown <br />to be better for revegetation than the separately segregated materials; d) the Bench <br />One materials were not shown to be physically and chemically suitable for <br />establishing acceptable crop yields; e) the increase in allowed electroconductivity <br />levels are likely to be toxic to corn and/or alfalfa, the main crops raised on the <br />Morgan Property. R. 8941 -89706 <br />C. Inadequate Attention to Post - mining land -use, Topography and <br />Irrigation. <br />16. The Morgans objected to the proposal by WFC that the Morgan Property be <br />irrigated via the use of "sideroll" irrigation equipment'. R. 7895. The Morgans <br />objected because this type of irrigation equipment precludes cultivation of corn, a <br />crop which they have historically grown in rotation with alfalfa. Id. and R. 7908, <br />7337, 7350. <br />6 The OSM Technical Compliance Evaluation found a litany of questionable <br />practices, unsupported conclusions, and scientific defects with respect to the <br />reclamation of the Morgan Property. It is unclear whether any of this information <br />was ever brought to the attention of the Board by DRMS, though DRMS and WFC <br />did implement the testing and analysis plan on the Morgan Property which was <br />demanded by OSM. <br />A sideroll irrigator consists of pipe and sprinklers mounted on approximately 40 <br />inch wheels. <br />