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' - Page 8 <br />' The potential plant composition, by air dry weight, is as follows: <br />Percentage <br />' Indian rice grass (Oryzopsis hymenoides) 10-15 <br />Greasewood (Sarcobatus spp•) 10-15 <br />Alkali sacaton (Sporobulus airoides) 10-15 <br />' Saltgrass (Distichlis spicata) 5-10 <br />Fourwing saltbush (Atriplex canescens) 5-10 <br />' Western wheatgrass (Agropyron smithii) 5-10 <br />Galleta (Hilaria jamesii) 5-10 <br />' The total annual biomass production varies from year to year. According to <br />the SCS, a favorable year can produce 900 pounds per acre, median years can <br />produce 750 pounds per acre, and unfavorable years can produce 500 or less <br />' pounds per acre of air dry biomass. <br />According to the Range Site descriptions provided by the SCS, there are no <br />' known threatened or endangered plants found on either the Clayey Saltdesert <br />or the Salt Flats range sites. <br />' OPERATION AND RECLAMATION PLAN <br />The coal waste disposal area (Pit No. 6) will be reclaimed to cropland as <br />requested by Mr. Warren Cockroft, the landowner. The pre-disturbance was <br />native rangeland in poor range condition (estimated 200-300 pounds per acre <br />of air dry forage). The reclamation plan will include the removal, storage, <br />' redistribution of topsoil and fill material, as well as soil stabilization, <br />revegetation, and evaluation of success of reclamation. Figure 2, Reclamation <br />Plan, displays the anticipated graded land surface after reclamation, including <br />' the location of the permanent diversion ditch. <br />' Western Slope Carbon has projected the estimated life of the disposal area to <br />March, 1983. Reclamation of the disposal area will be continuous throughout <br />' the operation. Revegetation will occur during the first normal planting season <br />after the final topsoil grading. The retention embankment will be regraded <br />' (to a 2:1 slope) and both the embankment and the drainage will be revegetated <br />for erosion control. Table 2, Operation/Reclamation Schedule, represents an <br />' estimated timetable for completion of reclamation. <br />