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Modeling of surface water conditions has been utilized as set forth in Exhibit 8, Sediment Control Plan. <br />Characteristics of surface runoff, peak flow, reservoir routing, sediment yield, and theoretical detention time <br />have been modeled using the techniques described in "Procedures for Determining Peak Flows in Colorado' <br />(USDA, SCS 1977) and "Applied Hydrology and Sedimentology For Disturbed Areas" (Barfield, Warner and <br />Haan 1981). These techniques have been incorporated into the DEPOSITS model, which has been utilized in the <br />design of treatment facilities for the underground mine. Finally, streamflow and water quality in streams draining <br />the general area has been modeled using the WATBAL model, for the purposes of the assessment of probable <br />hydrologic consequences of mining on surface water, required by Rule 2.05.6(3). Modeling of ground water <br />conditions has been utilized in this application, specifically under Rule 2.05.6(3) and in Exhibit 9, Aquifer Test <br />TR13 -83 2.04 -11.1 11/03/14 <br />