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The water quality in HI aquifer well GP -3, which is close to the reclaimed A pit, has not <br />been influenced by mining. TDS concentrations were steady for the last few years in well GF -4 after <br />a slight increase for several previous years. This small change may be due to mining but is within <br />natural variations for this aquifer. The water quality in HI well GMT -1 likely has been affected by <br />mining. Its concentrations were within the range of natural concentrations until the increase in the <br />last eight years. The water quality in HI well GC -1, downgradient of the mining in this area, <br />increased in 2005 but returned to previous level in 2006 through 2014. The water quality in HI well <br />GP -7, which is east of the areas mined, has not been affected. The TDS for the first sample in 2014 <br />for well GP -7 seems to be an outlier. <br />The 3rd White Sandstone wells GC -2 and GP -9 are downgradient of mining starting in 2000 <br />and changes in water quality in these wells in 2014 are similar to previous natural changes. TDS in <br />3rd White Sandstone well P -8 were large in 1996 through 2014 and the magnitude and timing of this <br />increase makes it likely that it was caused by upgradient mining in the A pit. <br />The 2nd White Sandstone well P -5 contained enough water to be sampled once this year. <br />The 2014 TDS value falls within the range of historic values. <br />Significant changes in TDS concentrations have been observed in the alluvial wells GC -3, P- <br />1, J -1, and COY. The changes in the Flume alluvial wells had to be natural prior to 2000, while some <br />of the changes in J -1 water could be due to mining. Overall, the TDS for J -1 were higher than <br />normal from 2000 to 2014, but is very similar to the natural levels in the COY alluvial well. The <br />variations in 2014 TDS in Pyeatt alluvial well P -1 are thought to be natural except for a low outlier in <br />the fast sample for 2014. <br />Sulfate concentrations in well GF -4 were fairly steady in 2014 while the sulfate <br />concentrations in well GD -3 overall were fairly steady in the last three years. Sulfate concentrations <br />Trapper Mining Company 6 -4 <br />2014 Annual Report <br />