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• Fills comprised of unconsolidated soil and regolith materials will be seeded for <br /> stabilization. Slope configurations of 2HAV are expected to revegetate to <br /> relatively dense and stable grass stands. Stormwater controls consistent with <br /> those mentioned above will be employed along soil fills. <br /> 3.6.2 Interim Revegetation <br /> Seeding will follow disturbance in a timely manner. Areas disturbed in the limited <br /> construction window afforded by climatic conditions in the Williams Fork Valley <br /> will be seeded in the fall prior to the onset of winter weather. September is <br /> considered the optimum planting time due to cold temperatures that limit seed <br /> germination and mimic natural timing of seed dissemination. Late season <br /> construction activity resulting in disturbances after September will be seeded <br /> immediately following snowmelt. The access available along the conveyor <br /> corridor will not limit early spring seeding, if required. In no case will seeding <br /> • take place between July 20 and August 31. This planting window is considered <br /> risky due to potential for seed germination within an inadequate seedling <br /> establishment time frame. <br /> Site preparation for interim seeding activity will consist of light scarification of <br /> compacted level areas using ripping and harrow equipment. Given the presence <br /> of glacial till and weathered fractured bedrock that will be used to construct the <br /> cut and fill slopes, freshly constructed slopes are expected to have adequate <br /> microsites and be suitably friable for seed to soil contact. Crusting of the fill <br /> surfaces is not expected, but in the unlikely circumstance that surface materials <br /> show a propensity to crust or condense, chain dragging may be employed <br /> immediately prior to seeding. <br /> Interim seeding will utilize broadcast techniques in a two pass operation. <br /> . Seeding will use a modified Climax Seed Mixture (Table 2) at a rate of 30 pls. <br /> Ift <br /> 21 <br /> January 16,IM <br /> Plan.doc <br />