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• recent years with variations over a one foot range. The September, <br />1992 through August, 1993 net changes are "none" and -0.1 ft, <br />respectively. The QR aquifer response (GP1) has been an overall <br />decline from 1986 to 1992 with variations over a four foot range. <br />The 1993 water-level elevations were essentially constant. The <br />September, 1992 through August, 1993 net change was +1 ft. <br />There were several water level increases observed in 1993 that <br />exceed those expected from natural variations and are responses to <br />mine activities. The increase in recharge combined with the low <br />pumpage from D pit have impacted wells GA1, GD2, GD3, GF6, and <br />GF11. Water-level increases were from 10 up to 28 ft. The <br />aquifers most impacted were the QR and associated backfill and the <br />• KLM. Of course, the effects of a wetter year are superimposed on <br />the mine activity. The presence of D and E pits and associated <br />backfill upgradient of these wells also enhances recharge, <br />increasing water levels. <br />Water-level changes will be discussed in more detail in the <br />following section. <br />2.1.2 WATER-LEVEL CHANGES <br />The water-level changes for the period of record are presented <br />as Figures A-1 through A-39 (Appendix A). This appendix also <br />contains Tables A-1 through A-10, tabulations of depth to water and <br />water-level elevations for each monitoring well over the period of <br />record. <br /> <br />2-3 <br />