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insignificant impact are still valid. <br />4) The PHC predicts the horizontal extent of drawdown in the <br />D and E seams, but does not predict the magnitude of the <br />drawdown, other than stating that the maximum possible <br />drawdowns would be equal to the saturated thickness of <br />each of the aquifers...in other words, total depletion. <br />Because wells completed in the E seam contain water, and <br />the D seam was not mined, it is safe to say that total <br />depletion has not occurred in either aquifer. <br />5) The PHC predicts a stream depletion in Ward and Williams <br />Creeks of up to 7~ or 0.175 cfs, which is equal to the <br />total mine inflow. The fluctuating stream flows show no <br />evidence of a depleting trend. <br />6) The PHC predicts surface water degradation. TDS and SAR <br />have actually been lower than the predicted levels for <br />the past two years with the exception of the downstream <br />SAR in September, 1994. Therefore, surface water quality <br />does not appear to have been significantly affected by <br />mining. <br />7) The table presented on page 2 of the AHR does not include <br />units for TDS. Although the units are mentioned in the <br />text, the operator should keep in mind, for future <br />reports, should be readily comprehensible as a stand- <br />alone unit to facilitate public review. <br />8 ) On page 3 of the AHR, the operator states that it is <br />unlikely that the water level in well E-1 is <br />representative of the water level in the mine. Please <br />have the operator expand on this. Why is it unlikely to <br />represent the water level in the mine. Doe the operator <br />believe the water level in the mine to be above or below <br />the water level in the well? Why? Does the operator <br />believe that water levels in well E-1 have any <br />relationship with water levels in the mine? <br />9) My views regarding the continuation of water level <br />monitoring in wells E-1 and E-3 will depend, in part, on <br />the operator's response to question 8). one well in the <br />E seam is probably sufficient, and as well E-3 has been <br />destroyed, it would seem superfluous to request that it <br />be redrilled at this point. The main question is whether <br />the water level data yielded by well E-1 are useful. <br />That would depend on whether the intent of the well was <br />to monitor water levels in the E seam aquifer or in the <br />mine workings. It is unlikely that the well was intended <br />to monitor mine water levels, as water typically rises <br />faster in the mine workings than in the aquifer itself. <br />If the intent of the well is to monitor levels in the <br />aquifer, then the one well would appear to be sufficient, <br />and well E-3 may be abandoned. <br />