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Water-level increases in well GMP-1 are mainly due to the movement of Pit A to <br /> the east of this area but some of the rise may be due to increased recharge. The water- <br /> level rises in well GD-3 are possibly due to the moving of Pit D farther from well GD-3 but <br /> increases in recharge over the last few years has to be part of the rise. Wells GB-1 and <br /> GB-2 also had increases in water level, probably 'due predominately to mine activities. <br /> Mining is moving farther away from these wells with time. <br /> Water-level changes are discussed in more detail in the following section. <br /> 2.1.2 WATER-LEVEL CHANGES <br /> Water-level changes for 1998, as well as all historical data, are presented in <br /> Figures A-1 through A-17 in Appendix A. The wells are grouped according to aquifer <br /> where possible but, in most cases, are grouped by similar water-level elevations. Table A- <br /> 1 presents a tabulation of the water-level elevations for each of the monitoring wells. <br /> Figure 2-1 presents the total annual precipitation at the Trapper Mine from 1978 through <br /> 1998. Precipitation declined from a high in 1983 to a low in 1988 and had increased again <br /> to a peak in 1993 with a below average value in 1994. The years 1995 through 1998 had <br /> above average precipitation relative to the long-term record. Water levels in many of the <br /> wells reflect the natural variations in recharge. These changes may lag the actual <br /> precipitation events due to the time it takes the head change to move through the aquifer <br /> to the monitoring well. <br /> Wells GP-1, GP-5 and GP-6 are useful in defining natural variations in the QR <br /> aquifer for 1998. Water levels in each of these three wells show a rising trend for the last <br /> four years. Wells GP-2 and GP-8 are used as a baseline for precipitation/recharge impacts <br /> 2-3 <br />