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1 <br />1 <br />J <br />1 <br />J <br />J <br />1 <br />1 <br />1 <br />J <br />Page 13 <br />MULCHING <br />The embankment and drainages will be mulched with weed-free straw applied <br />with a straw blower or a hydromulcher at a rate of 1.5 to 2 tons per acre. <br />IRRIGATION <br />Irrigation is not proposed since the species selected for revegetation are <br />well adapted to the climatic regime of the area. Should lower than normal <br />(average) precipitation occur, water trucks will have to haul water in to <br />supplement the precipitation. <br />DETERMINING REVEGETATION SUCCESS <br />The Soil Conservation Service (SCS) has identified the Chipeta Soil series <br />as an unsuitable soil for growing crops. This was based upon slope, sodic <br />conditions, and clay content. <br />The reclamation of the disposal area will have slopes of 20:1 (horizontal <br />to vertical) or less. Cooper 6 Clark's soil sample has shown the SAR value <br />and electrical conductivity (EC) to be low (2.53 and 1.85, respectively). <br />Contrary to SCS's findings, Western Slope Carbon believes the soil is suitable <br />for cropland. <br />Western Slope Carbon will use adjacent lands producing the same crop on the <br />same soil as a success standard. If the same soil cannot be located growing <br />the same crop, an adjustment factor will be developed with MLRD's recommenda- <br />l tions and approval. <br />I Crop production will equal or exceed the production provided by the standard <br />for at least two consecutive years. A 90% statistical confidence level will ~ <br />be used for determining whether the productions are equal. <br />RECLAMATION COSTS <br />I All reclamation work will be performed by an outside contractor. Reclamation <br />work will include: <br />1. Grading the coal waste at two-foot layers. <br />2. Distributing three feet of fill material over the <br />I graded coal waste. <br />