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well GE3 is expected . Changes in the field conductivities for <br /> aquifers monitored at the GE site are not thought to be caused by <br /> any mining activities from Trapper Mine. Mining on the west side <br /> of the Trapper Mine permit area was re-started in 1988. <br /> Twenty Mile Sandstone well GF1 and U aquifer well GF2 have <br /> shown very little change in field conductivity during the period <br /> presented ( 1981 through 1989) in Figures B-14 and B-15. <br /> Concentration plots with less scatter are expected from these <br /> deeper aquifers. Wells GF3 and GF4 are completed in the KLM and <br /> I aquifers. Figures B-16 and B-17 present the field conductivity <br /> versus time plots for wells GF3 and GF4. Each plot shows no major <br /> trends in data to 1986 with a slight rise in values since 1996. <br /> This slight rise is still within natural fluctuations. <br /> The backfill aquifer in the Ashmore Pit area is monitored by <br /> well GF5. Figure B-18 shows that conductivities for well GF5 have <br /> been fairly stable since 1984 . Well GF6 is completed in the 0 <br /> aquifer . Figure B-19 presents the conductivity versus time plot <br /> for well GF6. The first quarter of 1989 value is significantly <br /> greater than the other 1989 values and may be due to a measurement <br /> error but it is within the expected natural variations expected for <br /> this aquifer. <br /> Wells GF7 and GF11 are completed in the backfill material <br /> where the HI and OR coal were mined . Figures B-20 and B-21 <br /> present field conductivity data versus time for each well . <br /> Recovery of water levels in the backfill material near well GF7 <br /> . has caused the rise in conductivity since the well was installed <br /> 3-4 <br />