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. Hay/Straw Mulch
<br />Hay and/or straw mulch will be employed in areas where wind or water
<br />erosion is of significant concern. Such azeas may include channel
<br />bottoms and hillside slopes. Any hay or straw employed must be
<br />certified as native and weed and pest free in accordance with U.S.
<br />Department of Agriculture regulations. Hay or straw mulch will be
<br />applied at a rate of two (2) tons per acre and crimped or disked into the
<br />surface of the soil. Application should be perpendiculaz to the
<br />predominant wind direction and/or the direction of surface water flow.
<br />Hydromulch and Tackitier
<br />Hydromulch and tackifier will be used to anchor seed and any
<br />amendments to the soil surface on revegetation azeas where the slope is
<br />greater than 2.5:1 (horizontal: vertical). Hydromulches to be used would
<br />be inert wood and plant fiber products (cellulose), and acceptable
<br />tackifiers would be comprised of plant gums or organic co-polymers.
<br />Hydromulch and tackifiers should be applied with a hydromulcher at a
<br />manufacturers recommended rate of 2500 pounds of hydromulch and
<br />tackifier per acre. Hydromulch and tackifier should be applied after
<br />• seeding, and any application of other soil amendments.
<br />Stubble Mulch
<br />As an alternative to hay or straw mulch in the same applications, stubble
<br />mulch (nurse or cover crop) may be employed. This mulch should only
<br />be employed in areas accessible to mowing, should that be necessary to
<br />control mulch growth or spread. Suitable mulches to be employed would
<br />include sterile crosses of agricultural wheat and native wheatgrasses
<br />(such as the product Regreen®), sorghum, barley, or other agricultural
<br />crop grass. The local Natural Resource Conservation Service office,
<br />Agricultural Extension office, or other crop management agency will be
<br />contacted to determine stubble mulch strip width, direction, and seeding
<br />rate for a specific stubble mulch planting.
<br />Irrigation
<br />Irrigation is not proposed to be employed at the King II Mine.
<br />Revegetation Management
<br />To ensure timely development of the vegetation on the revegetated areas,
<br />and to ensure successful revegetation, management of the revegetated
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<br />National King Coal, LLC ~~ King II Mine
<br />Section 2.05.4
<br />Page 8 May, 2006
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