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<br />L~ <br />IV. Ground SQater <br />-round Wa E1 va Bona <br />1 <br />Water levels in the alluvial wells at the Edna Mine have remained constant <br />' over the previous years with minor fluctuations occurring seasonally. <br />Elevations of the water in the alluvial wells and the spoils well are shown in <br />' Figure 9. As suggested in the baseline studies, the occurrence of a drawdown <br />in any of the wells is anticipated only during mining at the base of the slope <br />' near Trout Creek. <br />In reviewing the data, it is interesting to note that the spoils well has <br />also reached steady state. The equilibrium of WR-1 is further evidenced <br />' through the surface expression of a spring on the lower portion of west Ridge <br />near the elevation of Trout Creek. <br />(:round water Quality <br />1 Comparisons of water quality data gathered from the alluvial wells at the Edna <br />' Mine must be exercised with caution due to the differing stratigraphic units <br />intersected along Trout Creek adjacent to the various wells. The alluvium in <br />the vicinity of Well TR-1.5 intersects stratigraphy above the Wadqe coal seam <br />' while the alluvium in the vicinity of TR-3 intersects stratigraphy below the <br />Wadge seam. Alluvium in the vicinity of TR-9 intersects even lower <br />stratigraphic units than those at TR-3. The influence from contact with the <br />differing lithologies is not able to be quantified, therefore, differences <br />' between the wells may not be responses to mining related activities. <br />The general characteristics: temperature (Figure 9) and pH (Figure 10) show <br />the expected trends with temperature exhibiting typical seasonal fluctuations <br />and pH remaining constant over the monitoring period. <br />Specific conductivity (Figure 10) values for the three alluvial wells have <br />' remained fairly constant over the period of record and consistent with values <br /> <br />1 <br />