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tabulated in Table A-1 in Appendix A. Figures A-16 and A-17 present water level versus ', <br />time plots. Both plots are similar, with an overall rising trend observed during the last three <br />years. These responses are interpreted to be due to seasonal variations in recharge due <br />to the large distance to active QR mining. <br />Figure A-16 presents the change in water-level elevation for alluvial well P-1, <br />located in the Pyeatt drainage north of the PA. This data demonstrates classic seasonal <br />responses, highs in winter/spring and lows in late summer/fall. An overall increasing trend <br />occurred beginning in 1992. Well P-3 is completed in the Lewis Shale outcrop, which is in <br />contact with the Pyeatt alluvium. It demonstrates the same seasonal variations (Figure A- <br />16) as the P-1 well. <br />Water-level elevations for the Johnson Gulch alluvial well J-1 are also presented <br />in Figure A-16. The J-1 water levels have remained fairly steady. ~~ <br />2.2 GROUND WATER-LEVEL ELEVATION (PIEZOMETRIC MAP SUMMARY) <br />Hydro-Engineering developed three piezometric maps to show the water level <br />flow patterns for the QR, HI and 3rd White Sandstone aquifers at Trapper Mine. Water <br />levels from the Fall of 1997 were used to develop these maps. <br />Map No. 2-1 presents the water-level elevations for the QR aquifer. The <br />water-level elevation is presented for the QR wells: GD-2, GE-1, GF-6, GP-1, GP-5, and <br />GP-6 and backfill wells GD-3 and GF-11. The ground-water flow in the QR aquifer is mainly <br />to the north. Mining has only affected the QR aquifer close to the D, E and F pits by <br />causing drawdowns very near the pit edges. The installation of backfill wells GD-3 and GF- <br />I. <br />2-8 <br />