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<br />~1 <br />L.J <br />I• <br />though mining in the M and Q seams started in 2001 nearby. No pit dewatering occurred <br />from the G pit in 2001. Only small amounts of water drainage into the G pit occurred in <br />2001. <br />Water-level increases that have been observed in well GMP-1 for the last ten <br />years due to the movement of Pit A to the east of this area. No dewatering was produced <br />from the Z pit in 2001. The relatively steady water levels in well GD-3 in 2001 indicate <br />that recharge was large enough to maintain this lower level. Wells GB-1 and GB-2 had <br />increases in water level, probably due to recharge and the amount of time since mining in <br />this area. Mining is moving farther away from these wells with time. The water levels in <br />KLM well GP-2 became fairly steady in 2001 after declining the previous three years. The <br />previous decline could have been caused by the decrease in recharge and mining in this <br />area. <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 2001, as well as all historical data, are presented in <br />Figures A-1 through A-15 in Appendix A. The wells are grouped on the water-level plots <br />according to aquifer where possible but, in most cases, are grouped by similar water-level <br />elevations. Table A-1 presents a tabulation of the water-level elevations for each of the <br />monitoring wells. Figure 2-1 presents the total annual precipitation at the Trapper Mine <br />from 1978 through 2001. Precipitation declined from a high in 1983 to a low in 1988 and <br />had increased again to a peak in 1993 with a below average value in 1994. The years <br />1995 through 1997 had above average precipitation relative to the Trapper Mine record, <br />while 1998 through 2001 were below. Water levels in many of the wells reflect the natural <br />2-3 <br />