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concentrations in the valley fill aquifer are approximately 0.5 mg/L. At the model cell <br />located at the South pivot, the total increase in fluoride concentration at steady state is <br />predicted to be approximately 0.92 milligrams per liter (mg/L), and a total concentration <br />of 1.42 mg/L. This is the expected maximum concentration in the ground water due to its <br />proximity to the source. As ground water flows downgradient, this fluoride mass <br />disperses and the resultant concentrations decrease. No adsorption was assumed in this <br />analysis; i.e., fluoride was assumed to be conservative. Therefore, dispersion was the <br />only mechanism by which the fluoride concentration was changed. The observation point <br />located along the primary axis of ground water flow at a distance equal to the SLM-2 <br />well showed a total increase in concentration of 0.73 mg/L, which results in a total <br />fluoride concentration of 1.23 mg/L. The results of the solute transport model indicate a <br />total increase in fluoride concentration of approximately 0.46 mg/L at the SLM-2 well, <br />which results in a total fluoride concentration estimate of 0.96 mg/L. It is important to <br />note that all of the observation points are located on the Salazar Ranch, so fluoride <br />concentrations are dispersing in the ground water naturally before leaving the area <br />controlled by Battle Mountain Resources, Inc. Based on this expected maximum <br />concentration increase, the irrigation of the Salazar Ranch pivots with West Pit water will <br />not adversely affect any current or reasonably foreseeable future use of ground water <br />from the valley fill aquifer. <br />