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kxated away from present mining activities and could not have been affected, with the <br />exception of well GP-6 near the F pit. The mining at the F pit has not been bng enough to <br />affect the water quality in QR well GP-ti. <br />The water quality in HI aquifer wells G&5 and GP-3, which are close to the <br />reclaimed A pit, has not been influenced by mining. TDS slightly decreased in 2003 in well <br />GE-2 while a slight increase was observed in well GF-4. This small change may be due to <br />mining but is within natural variations for this aquifer. The water quality in HI well GMP-1 <br />may have been slightly affected by mining, but its concentrations are within the range of <br />natural concentrations. The water quality in HI well GC-1, downgradient of the mining in <br />this area, has not been affected. The water quality in the remainder of the HI wells east of <br />the areas mined have not been affected. <br />The TDS plot of the 3rd White Sandstone well G&2 indigtes it has probably not <br />been affected by mining, and changes are within natural variations for this aquifer. Mining <br />could have caused concentrations to vary in 3rd White Sandstone well GE-3 but the <br />variations observed are also within natural variation. The 3rd White Sandstone wells GC-2 <br />and GP-9 are downgradient of mining starting in 2000 and changes in water quality in these <br />wells in 2003 are similar to previous natural changes. TDS in 3rd White Sandstone well P-8 <br />were large in 1996 through 2003 and the magnitude and timing of this increase makes it <br />likely that it was caused by upgradient mining in the A pit. <br />Significant changes in TDS concentrations have been observed in the alluvial wells <br />GC-3, P-1, J-1, and COY. The changes in the Flume alluvial wells had to be natural prior to <br />2000, while some of the changes in ]-1 water could be due to mining. Overall, the TDS for <br />-1 were higher than normal in 2003 but is very similar to concentrations observed in this <br />6-4 <br />