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east drainage area below the plateau (Topsoil Borrow Area: See Map King I-007).
<br />This soil material was obtained from an area around and above the shop
<br />building and coal storage area prior to 1972. It has overgrown with natural
<br />vegetation, and is therefore stabilized and protected adequately from wind and water
<br />erosion. The upper reaches of the east drainage area in which stockpiled topsoil lies
<br />is included in the disturbed area shown on Map King I-007. The Topsoil Borrow
<br />Area consists of an area of 1.5 acres with an estimated average depth of 7 feet, or
<br />approximately 16,940 cubic yards of material. This area has been sampled and
<br />analyzed by the soils lab at Colorado State University. For results of these analyses,
<br />see Appendix 12(3). The area under stockpiled soil will not require replacement of
<br />topsoil; however, all areas disturbed by removal of topsoil will be reclaimed in the
<br />same manner as described for mine disturbed area in Section 2.05.4.
<br />Suitable plant growth medium (subsoil) should also be obtainable from the
<br />sediment ponds overburden and embankment material. These soils have also been
<br />sampled and analyzed by the soils lab at Colorado State University (See Appendix
<br />12(3)). Stockpiled soils (Subsoil Storage Area) are free from contamination with
<br />stockpiled coal and are located so as to eliminate erosion of the stored soils (See Map
<br />King I-007). Reclamation of the permit area would commence at the end of the life of
<br />the mine.
<br />RECLAMATION SOILS
<br />All stockpiled topsoil plus the suitable overburden/sediment pond material to
<br />be used in reclamation will be tested for the following parameters:
<br />1.
<br />2. Ph
<br />Conductivity
<br />3. Texture (particle size distribution)
<br />4. Sodium absorption ratio
<br />5. Saturation percentage
<br />6. If Ph is over 8, test will be made for selenium and boron.
<br />7. Fertilization:
<br /> Nitrogen
<br /> Phosphorus
<br /> Potassium
<br />8. Suitability of the soil as a plant growth material.
<br />Table 1: SCS Soil Survey Interpretations Data
<br />Mine Plan Area
<br /> Depth
<br />Increments Texture U.S.D.A Ph E.C.
<br />Lazear Series 0-4 1 stl 1 7.9-8.4
<br /> 4-14 1, 1 7.9-8.4
<br /> 0-10 l .cl 7.9-8.4 <4.0
<br />
<br />Bi Blue 10-18 c 7.9-8.4
<br /> 18-60 cl c 7.4-8.4
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<br />National King Coal, LLC King I Mine
<br />Section 2.04.9
<br />Page 2 February, 2007
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