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Table 5 shows predictions of salt loading impacts on the San t4iquel River. <br />These values are derived from the product of flow and TDS concentrations, <br />Baseline levels appear to be strongly influenced by flow. Flows registered in <br />April 1987, resulted in salt loading of 1000 tons/day whereas predictions of <br />salinity loading during low flows never exceeded 85 tons/day. Salt loads as a <br />percentage change from baseline were more sensitive than changes in TDS <br />levels. Salt loading from operational impacts for mean flows and greater is <br />relatively small. The greatest change in salt load predictions occurred <br />during the irrigation season for spoils discharge (long term) impact. <br />Based upon an analysis of the probable hydrologic consequences of mining at <br />the Nucla permit area, the cumulative hydrologic impacts of mining to the <br />prevailing hydrologic regime will not cause material damage offsite. As there <br />are no additional coal mines in the Nucla area, the probable hydrologic <br />consequences of the two Nucla mines is the same as the cumulative hydrologic <br />impact statement for the region. <br />_27_ <br />