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RULE 2: Permit <br /> Page 2.05-33a <br />TR-21 Revised: 2/17/2021 <br /> <br />Runoff form the loadout and stockpile area is routed to a small sedimentation pond at the northeast corner <br />of the area. Runoff from the surrounding area will be diverted in a ditch on the south side of the loadout <br />from discharge east into Lorencito Canyon. An SAE for the small spillage clean-up area on the north side <br />of the tracks and on the west end of the south side of the tracks will be controlled with straw bales and/or <br />silt fencing. <br />Sediment control reservoirs will be constructed prior to disturbance of the overlying watershed, and will <br />be retained through the achievement of the Phase II bond release. Ditches will be reclaimed when they are <br />no longer needed to divert water. Most ponds will be proposed for permanent retention on the condition <br />they meet the requirements of Rule 4.05.9(1) following reclamation. <br />As part of Technical Revision 21, runoff from drill location LC-17 -20 will be filtered through a sediment <br />fence before reporting to Pond 007 via Ditch D9 as shown on Map 2.05.3-7. <br />(5) Topsoil <br />Topsoil and usable subsoil (A and B horizons) will be removed using tracked dozers and excavators. <br />Topsoil and subsoil will be removed from areas to be affected by the surface mines following removal of <br />vegetative cover but prior to any other surface disturbances such as drilling, blasting, or overburden <br />stripping. Salvage areas for the surface mine are shown on Map 2.05.3-3c. <br />LCC will remove topsoil prior to operational disturbances except when slope angles restrict these <br />activities. Additionally, areas with negligible amounts of topsoil will not receive topsoil removal. <br />LCC proposes several approaches for the removal of shrubby vegetation from the head-of-hollow fill <br />areas, and for its subsequent use. Shrub removal in the fill areas will be achieved with clearing or burning. <br />Presently, LCC proposes to accomplish vegetation clearing by chaining or dozing activities. Rotoclearing <br />may be a possibility; however, implementation of this method depends both upon the acquisition of a <br />Madge Rot oclear, and upon its feasibility in rocky and/or steep areas. Burning is retained as an option for <br />vegetation removal due to its function on slopes which are too steep for other management practices. <br />Upon removal, LCC proposes to use the resulting organic material in sediment control practices as well as <br />an organic mulch. Sediment control practices will include the establishment of brush check dams and <br />brush windrows to reduce slope lengths. This additionally will provide shelter areas for wildlife such as <br />small rodents. Alternatively, organic material removed from the surface mine may also be chipped and <br />used as a surface mulch. <br />Vol umes of available soil have been calculated using the average thickness of salvageable soil for each <br />soil type as noted in section 2.04.9. As shown in Table 2.05.3-2, a total of more than 1.5 million cubic <br />yards of topsoil and subsoil have been identified for removal form the surface mines, roads, loadout <br />facility, and ponds. Soils will be salvaged for slopes up to 50 percent as identified on Map 2.05.3 -3e. The <br />proposed amount to be remove and stockpiled excludes one soil type (Louviers-Rombo-Travessilla <br />Complex) due to its elevated rock content. Furthermore, additional soil may be opportunistically salvaged <br />as possible. <br />As part of Technical Revision 21, Topsoil will be salvaged form drill site LC-17-20 prior to construction. <br />Salvaging will include removing the top 12 inches of soil or the amount available and stockpiling this