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n <br />U <br />Water levels in well GB2, which is completed in the Third White <br />Sandstone, were very steady until 1982 when a drop in water level of <br />approximately six feet occurred over a two year period. Water levels <br />the last two years have remained steady. <br />Well GB5 monitors the HI aquifer at the base of the A pit. Water <br />levels (see Figure A-5) in this well gradually rose as they did during <br />the past four years. The majority of this water level response is <br />thought to be due to recovery of the aquifer as mining in the A pit <br />moves away from this area. The rate of water-level rise seems to have <br />decreased some in 1987. <br />• The GC wells are approximately two and one-half miles from the <br />nearest mining in the H and I coal seams. Well GC1 is completed in <br />the HI aquifer and has shown a considerable amount of water level <br />fluctuation which is all thought to be natural. Figure A-6 shows that <br />water levels have been fairly steady in 1987 indicating very little <br />change in storage in the HI aquifer in this area. <br />The water levels from the Third White Sandstone well (GC2) show <br />that water levels have been fairly steady in this well. The <br />hydrograph for alluvial well, GC 3, shows steady levels for 1987, also. <br />The static water-level elevations for flowing well GD2 are <br />presented in Figure A-9. The well head pressures were converted to <br />. feet of water above the well head to obtain these elevations. Water <br />2-4 <br />