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• The static water-level elevations for flowing well GD2 are <br /> presented in Figure A-9. The well head pressures were converted <br /> to feet of water above the well head to obtain these elevations. <br /> Water levels had been rising in the OR aquifer at well GD2 for <br /> most of 1986. The water levels from November 1986 through <br /> September 1989 have shown a decline to levels below those of early <br /> 1996. The December 1989 water level exhibited a significant rise <br /> from the previous 1989 levels. The decline in water levels since <br /> 1986 is thought to be mainly reflective of lower rates of recharge <br /> due to the smaller precipitation amounts since 1986. Some of the <br /> past rise could have been caused by increased ground water flowing <br /> downgradient due to the mining and , therefore, some of the recent <br /> • decline in water level could be the result of levels returning to <br /> pre-mine conditions. The fluctuations seen in water levels for <br /> well GD2 are thought to be mainly from natural changes in the OR <br /> system. <br /> Well GD3 was installed in the backfill material upgradient <br /> of well GD2 in D pit during July 1988. Figure A-10 presents the <br /> plot of data collected from well GD3. The fluctuating water levels <br /> in the backfill material near well GD3 indicate that this area has <br /> yet to stabilize after mining . <br /> Figures A-11 , A-12 and A-13 present the water-level changes <br /> in the OR, HI , and Third and Second White Sandstone aquifers, <br /> \ respectively, at the GE site. Water levels in the OR and HI <br /> aquifers have shown little change in 1989. Levels in the Third and <br /> Second White Sandstone aquifer rose above the 1987 levels during <br /> 2-7 <br />