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probably natural since this follows the precipitation pattern. The <br />water level in the QR well GP5 responded similarly. <br />i, <br />2.1.2 WATER-LEVEL CHANGES <br />The water-level changes for the period of record are presented <br />as Figures A-1 to A-3,9 (Appendix A). Tabulated depth to water and <br />water-level elevations are in this appendix also. Water level <br />changes in many wells reflect changes ob;~erved in annual <br />precipitation amounts. Figure 2-1 (page 2-17) presents annual <br />precipitation totals at Trapper Mine, showing that 1991 <br />precipitation is slightly below normal. Table A-1 (page A-40) in <br />Appendix A presents the water-level data for w~;lls GA1, GA2, GB1 <br />and GB2. Water-level changes for well GA1 are shown on the <br />hydrograph on Figure A-1 of Appendix A. The Q coal seam was mined <br />less than 1000 feet to the east during 1988 and the Q and R seams <br />were mined approximately 2000 feet west of this well during 1991. <br />Water levels were rapidly rising in 1984 and t:.zen declined to an <br />average rate of three feet per year during 1986. These rises are <br />thought to be due to increased recharge from above average <br />precipitation in 1983 and 1984 (see Figure 2-1). Water levels <br />declined at a higher rate from 1987 through 1:91 with the water <br />levels dropping approximately 51 feet in the la~;t four years. The <br />rate of decline in water level has been increasing over the past 2 <br />years. At least some of the increase in this ra~:e is thought to be <br />due to a decline in the recharge from the decrease in <br />.' <br />2-4 <br />