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luoe1998 &aergy Fuels Carl, loc. Ground Water 1997 Aaaur! Xjdrabgy Rcpixt Field and laboratory data collected from monitor wells 14iW-8, MW-10, MW-16, MW-23, and MW-65 are summarized as described below. All data was collected in compliance with the approved monitoring program. Water quality data for wells 10, 16, 23 and 65 aze shown on Tables S, 6, 7 and 8, respectively. Water quality samples are not obtained at 11dW-8 as described in the permit application. As mentioned in the previous AHR, MW-10 was mined-through. Observations during the period of this report show the well is dry and draining into the mine openings. A review of monitoring data for each well through the period of this report indicate that water quality data are consistent with previous reporting periods. Water quality in 11dW-16 shows slight improvement. The water quality in MW-23 is consistent with previous reporting periods. At MW-65, the data shows a moderate increase in the amount of nitrogen ammonia. Additional monitoring will show if this is a sustained trend. Water quality in all wells remains within acceptable ranges for material damage criteria. Well levels for all monitoring wells are summa,;~pr on Table 4, and water level data are presented graphically for the five monitor wells on Figures 3, 4, 5, 6, and 7. A review of water levels data shows steadily declining water levels at MW-23; seasonally fluctuating levels at MW-lti; and stable levels at 11riW~5. Well 14IW-8 was mined-through in 1993 and immediately went dry. Subsequent monitoring showed that the borehole had collapsed to a point 336 feet below the surface. The water level recovered and has held at approumately 280 feet below the surface since early 1996. This sustained rechazge of the well may indicate that sub-surface conditions leave stabilized. The approved ground water monitoring program adequately monitors potential impacts of mining on the ground water system. The data collected through the period of this report indicate that no significant ground water impacts have occurred as a result of mining.