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Other Soil Surface Stabilization Measures <br />Supplemental soil protection and water conservation measures can be applied to drought affected <br />reclaimed areas where permanent vegetation is being established. These measures may include <br />bonded fiber matrix or an assortment of erosion control blankets. These materials and their <br />application are described in the permit application. These soil stabilization measures will be <br />selected based on site - specific conditions within the drought - affected area, and the <br />manufacturer's design criteria and application recommendations. <br />WATER HARVESTING & RETENTION <br />A variety of water harvesting and retention measures are provided in the Red Rock Mine <br />revegetation plan. They include mulching, cover cropping, placement of erosion control fabrics <br />and surface roughening. As discussed above, this plan also provides for the placement of wind <br />barriers that can reduce evapotranspiration potentials and promote increased soil moisture <br />content through snow capture and retention. <br />STORMWATER RUNOFF CONTROL <br />Habitat Management, Inc. <br />GCC Rio Grande, Inc. -Red Rock Mine <br />Drought Management Plan <br />Storm water runoff control is an integral part of the Red Rock Mine Plan. Surface roughening <br />that harvests and retains water on site is the primary runoff control feature for reclaimed areas. <br />For concentrated surface water flows, stable drainage channels will be reconstructed that will <br />convey runoff safely through the reclaimed areas. Reconstructed drainage channels will be <br />properly constructed to minimize erosion and avoid the formation of gullies. Gully head - cutting <br />and down- cutting can adversely impact storm water runoff infiltration and the formation of <br />shallow groundwater resources along reconstructed drainage channels. Preventing gully <br />formation promotes reclaimed area stability and supports development of local groundwater <br />resources. This in turn serves to enhance plant growth and the development of vegetation <br />communities. <br />9 <br />03 / 03 / 2003 <br />