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<br />occurred in this area during 1985. Figure 4.8-18 shows that water levels have been <br />rising at a steady rate during the last year. This rise could be due to recovery <br />after mining through the Ashmore pit or to a natural water level change. <br />Well GF-3 has few data points because it is a flowing well and pressure <br />readings have only been taken recently. Figure 4.8-19 presents the pressure reading <br />data converted to water-level elevation. Some of the scatter of data is most likely <br />due to measurement method error. Well GF-3 is a poor producer and in order to <br />establish a static head condition, the pressure must be allowed to build up and <br />stabilize. The October 1986 data point was allowed to stabilize and reflects a much <br />higher level. Levels appear to be rising in the KLM aquifer near well GF3. <br />HI AQUIFER <br />• <br />Wells GB5, GE2, and GF4, are completed in the HI aquifer. Well GB5 monitors <br />the HI aquifer at the base of the Ashmore pit. Water levels (see Figure 4.8-20) in <br />this well gradually rose as they did in 1984 and 1985. The majority of this water <br />level response is thought to be caused by the Ashmore pit. If water levels continue <br />to rise at the present rate, they will be back to pre-mine conditions by 1990. <br />Figure 4.8-21 presents the water-level hydrograph for well GE2. A very large drop <br />of nearly 200 feet is shown in well GE2 with a recovery of 50 feet. The effects of <br />mining near well GE2 are thought to have caused the drop in water level. Recent <br />increases are thought to be caused by the decrease of mining activity in this area. <br />Water-level elevation data for well GF4 is presented in Figure 4.8-22. Little <br />data is available on well GF-4 since it was previously a flowing well. Data <br />i <br />4-226 t REVISED FEB 13 '87