2008-05-01_REVISION - M1973007SG (5)

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SOILS INFORMATION limiting gas transfer into and out of the soil. In a natural prairie situation, this would be a great time for a fire to clean up the duff and inject a great deal of nutrient into the soil. Unfortunately, in this location, a grass fire would be hazardous to adjacent developed land. As mining proceeds, this accumulation of duff will be removed and incorporated into the soil. This is not as beneficial as burning,but, under the circumstances, is the best that can be done. Harvesting the existing grass as hay or use for mulching revegetation areas would not be a bad idea,but is not a necessity. Soil Salvage Recommendations for the Site On the west side of Academy Boulevard, soil salvage is impossible. What soil is there has already been "salvaged" and is in various piles around the site. Moving those piles would not be wise as it would further harm the growth characteristics that have developed in the surface layers of these piles since the time they were first produced. On the west side of Academy, it becomes a matter of finding the best use for what soil is available. On the east side of Academy, it is a different matter. It is recommended that on land yet to be mined, soil be salvaged to the depth where the color changes from dark to light. This zone is readily apparent and well defined. Using this method essentially all the best soil will be saved and the inferior subsoil avoided. An actual depth cannot be stated because it tends to vary considerably throughout the site. But for calculation purposes, five inches is considered a working figure. In the higher elevation areas this figure may drop to 3 to 4 inches in a few places while on the more protected sites it could be as much as 12 inches or more. But if the dark to light boundary is used, essentially all will be saved. It is not recommended that any soil from the east side of Academy be hauled to the soil deficient west side of Academy, unless there is a much greater surplus of soil than is expected. No surplus is expected,but if there is a surplus it could be used on the west side of Academy. It is anticipated that all the soil salvaged on the east side of Academy will be needed to reclaim that area. Soils Specific to the Little Johnson Reservoir Area As done elsewhere in this amendment, relevant portions of the Little Johnson Amendment are inserted into this document. The following descriptions pertain only to this specific area and do not necessarily apply to the rest of the site. --------------------------------------------------------------------------------------------------------------------------- The soils in the Little Johnson area deviate drastically from the original soils that occurred in this area. Virtually all of the soils within the basin that was the former reservoir site have been extensively altered by the presence of the reservoir or by disturbances of other types. No soils could Daniels Sand Pit#2 Amendment (2008) Exhibit I Page 6 of 8