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tabulated in Table A-1 in Appendix A. Figures A-15 and A-16 present water level versus • <br /> time plots. Both plots are similar, with steady 1999 values for well GP-5 and an overall <br /> small decline in well GP-6. An overall rising trend was observed during the previous four <br /> years. These responses are interpreted to be due to an increase in recharge for a few <br /> years followed by a decrease in recharge. The large distance to active QR mining, with the <br /> exception of the F pit mining that began in 1997, indicates that these water-level changes <br /> are natural changes. The small decline in well GP-6 could be due to the F pit pumping. <br /> Figure A-15 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 and has been followed by overall steady water levels in the last <br /> two and one-half years. 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 /> 15) as the P-1 well. <br /> Water-level elevations for the Johnson Gulch alluvial well 3-1 are also presented <br /> in Figure A-15. The 3-1 water levels have remained fairly steady in 1999. <br /> 2.2 GROUND WATER-LEVEL ELEVATION (PIEZOMETRIC MAP SUMMARY) <br /> Hydro-Engineering developed three piezometric maps to show the water level <br /> 1 <br /> flow patterns for the QR, HI and 3rd White Sandstone aquifers at Trapper Mine. Water <br /> levels from the Fall of 1999 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 GP- • <br /> 2-8 <br />