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<br />since been destroyed by mining as was well G22. These data show that mining had to <br />be very close before drawdowns were observed in the QR aquifer in this area. <br />The well head pressures for well GD2 were converted to feet of water above <br />land surface to obtain elevations (Figure 4.8-15). Water levels have been rising in <br />the QR aquifer at well GD2 for most of 1986. Levels in this area may be above pre- <br />mine conditions ae they are to the east at well GA1 or below pre-mine conditions as <br />they are at well GE1 'in the QR aquifer. The average water level in well CF6 for <br />1986 has declined slightly from the average value in 1985 (see Figure 4.8-16). <br />Mining in pits up dip from well GF6 may have caused the rise in water level <br />elevation through 1983 in the QR aquifer in this area. <br />KLM AQUIFER <br />• <br />Wells that penetrate the KLP1 aquifer in the operational mine area are: GA-2, <br />GB-1, and GF-3. <br />Figures 4.8-17 and 4.8-18 present water-level elevation hydrographs for wells <br />GA-2 and GB-l, respectively. Both wells are close to operational pits. Changes in <br />water level in well GA2 over the time period presented are thought to have been <br />influenced by the mining progress at that time as discussed in well GA1 of the QR <br />aquifer section. Average water levels have increased slightly in 1986 over the 1985 <br />values. <br />Well GB1 is completed in the sandstone below the I coal (KLM aquifer) and is <br />located at the base of Ashmore pit, where the H and I coal seams are mined. Mining <br /> <br />4-226o RE'lISf=D FEB 13 '37 <br />