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within a reasonable range of values and the model was run. Changes to the drawdown in the <br />surmner period mining simulation as a result of the variation of the parameter was noted. A <br />sutmnary of the results of the sensitivity analysis is shown in Table-2. <br />The results of the sensitivity analysis on the variation of the recharge rate from Idaho Creek <br />and the Smith & Emmons Ditch show that the drawdown from the mining operation is not <br />dependant on the rate of infiltration from the structures. A 100 percent variation in the <br />recharge rate resulted in a variation of the results of the model of less than 0.4 feet. <br />Lafarge West, Inc. -7- Applegate Group, Inc. <br />Duckworth Pi[ Groundwater Study Mazch, 2004 <br />