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Ditches, and ponds are inspected annually in accordance with Rule 4.05.9(13). After <br />significant precipitation events, ditches, channels, and ponds will be cleaned and repaired <br />as required. Hay bales and riprap aze inspected periodically and repaired as required. <br />2.05.3(5) Topsoil <br />Topsoil as used in this application will be defined to be the "A" soil horizon. From the <br />soils information Section 2.04.9, it has been determined that topsoil is either scarce, non- <br />existent or difficult to salvage in a major portion of the azea to be disturbed by mining. <br />Results of chemical analyses indicate that horizon "B" and "C" offer suitable revegetation <br />potential, particulazly in Falfa clay loam, 3 to 8 percent slopes. The basic soil salvage <br />plan is to retrieve all existing, suitable soil in areas where retrieval is practicable and <br />make up deficiencies from disturbed areas occurring on the Falfa clay loam soil. <br />The delineation of stripping areas and depths are shown on Map 5-3 and Table 5-2 <br />indicating soil balance numerics. Existing stockpile locations aze shown on Map 5-7; <br />approximate dimensions aze shown on Table 5-3. <br />The operational aspects of soil stripping and respreading occur in the following order. <br />Initially, trees and lazge shrubs aze grubbed and removed from the area. Next suitable soil <br />materials are salvaged and either stockpiled or returned to an azea ready for re-topsoiling. <br />After respreading, the replaced soil materials aze seeded and mulched. <br />The soil stockpiles have been seeded with the following seed mix: <br />Species lbs./acre <br />Slender Wheatgrass 10.0 <br />Western Wheatgrass 10.0 <br />Thickspike Wheatgrass 10.0 <br />Crested Wheatgrass 3.0 <br />Perennial Rye Grass 3.0 <br />Cicer Milkvetch 1.0 <br />Utah Sweetvetch 1.0 <br />Total Seed Rate 38.0 <br />2.05.3(6) Overburden <br />From the eazly mining activities the swell factor has been estimated at 30%. This swell is <br />based upon a calculation made from the existing pit and fill azea. It should be noted that <br />there is a slight variance between the original topographic maps and those flown in 1990 <br />by Air Photo Surveys. Thus, the most recent determination of swell continues to be <br />TR08, TRl1(v1.0) 5-18 Revised 9/97, 08/02 <br />