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• <br />• <br />• <br />4.4. Post Mine Hydrologic Balance <br />Precipitation amounts are expected to be similar to pre -mine conditions after mining. The post - <br />mining evapotranspiration rate is similar to the pre -mine values as vegetation is now re- established. <br />If recharge to the spoils is larger than pre -mine values, direct surface runoff will be reduced <br />subsequent to mining. A larger net groundwater discharge to the surface system is likely in areas <br />where spoil springs have developed. These discharges should offset a decrease in direct surface <br />runoff from the reclaimed surfaces. The larger amount of groundwater discharge to springs has <br />increased the water availability for wildlife and livestock in the area for a greater portion of the year. <br />4.5. Sediment Loss Evaluation <br />A SEDCAD+ evaluation of sediment production and yield in approved SL -6 Phase II bond release <br />documents (reclaimed parcels A -B -96, A -B -97, A -B -98, D -A -96, D -B -96, D- AB -97, D- AB -98, H -B -96, <br />H -B -98 and H -C -98) demonstrated that current reclamation conditions will result in equivalent or <br />lesser sediment contributions to surface runoff when compared with pre- mining levels. <br />5.0 Proposed Reduction in Bond Obligation <br />No reduction in the amount of the bond is sought with this bond release application. <br />10 <br />