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OWe suggest the following as a minimum: <br />1. <br />Soil testing and use of fertilizers (broadcast) as needed. <br />2. <br />Compacted surfaces (e.g. roads) should be ripped or chisel plowed to a <br />depth of 18 inches with 24 inches preferred before topsoil application. <br />3. <br />After topsoil is graded, lightly ripping or chisel plowing map help "bind" <br />the different layers of soil types. Using a disk may also be sufficient. <br />4. <br />The use of microbial agents such a mycorrhizae inoculates and <br />humates is recommended on poor soils. Caution should be <br />exercised to prevent a mixing of topsoil with lower layers, to the <br />extent that a degrading the tilth of the topsoil occurs. <br />5. <br />Supplementing the seed bed with organic material is not required <br />but highly recommended, this includes: hay, straw, and manure <br />from the ranching operation, crimped straw at one ton/acre, or <br />straw based blankets and wattles. <br />6. <br />Due to the lack of topsoil one may have to rely on a subsoil as a <br />basic plant growth medium. if this is the case it is suggested that <br />1, 3, 4, and 5 are utilized singularly or in combination. <br />See Appendix A (section Soil Preparation and Seeding) for descriptions of <br />methods and recommended soil amendments. <br />Erosion, Sediment Control, and Waste Rock Product <br />O(Construction Materials Rule 6.3.4 (1e)) <br />N <br />Rock products that are remnants of the mining process can be used in the <br />following manner: <br />1. Erosion and sediment control during the final reclaim. See Appendix A. <br />2. Stockpiled and used on the Vista Del Sol ranch. Select an area for the <br />stockpile that does not impact the reclamation. <br />3. Buried in the reclaim and covered with growth medium and <br />overburden as previously discussed. <br />One erosion/sediment control structure, a berm, is present on the western <br />portion of the pit (Photo 6). This structure should remain in place until <br />mining ceases. Once mining is finished the berm should be reduced in height <br />and seeded. A small rise should be left to help control water movement into <br />West Twin Wash and reduce the potential for the bank of the wash being <br />eroded or collapsing. Water movement into the wash can also be controlled <br />with ORDS, wattles, rock mulch, and water bars. See Appendix A <br />36 1 P <br />1011 1'tMII L c.RAV11. I'll. % 1';1A DLL Y -,L R 1NCI 1 <br />li'i�IN INV IRrlN.%It N IAL AND \Q1JA I ICS m %�IVVW CAI A Ili1ti1NI NV 1 L LONI <br />