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of below normal precip'~tation. The water level in well GP-4 has also recovered to pre-mine <br />levels but observed fairly steady levels in 2003. <br />Well GMP-i (Figure A-13) was completed in the HI aquifer to monitor ground- <br />water conditions downgradient of the ash disposal site immediately south in A pit. Water <br />levels bepme steady in 2001 and stayed steady the last three years, possibly a lull in the <br />recovery from the A pit mining due to less recharge. <br />Wells GP-5 and GP-6 are both completed in the QR aquiifer. GP-5 is immediately <br />downgradient of A pit and GP-6 is immediately upgradient of the pit. Water-level data is <br />tabulated in Table A-1 in Append'oc A. Fgures A-15 and A-16 present water level versus <br />time pots. Both plots are fairly similar, with a small decline in water level in wells GP-5 and <br />GP-6 in 2003. An overall rising trend had been observed during the period of above normal <br />preapitation while an overall smaller rise had been observed during the below normal <br />precip'~tion until this year. These responses are interpreted to be due to an increase in <br />recharge for a few years followed by a decrease in recharge. The rise in previous few years <br />in water levels indicate good recharge from the below average preapitation. Recharge in <br />2003 was not enough to maintain the water levels. These responses indicate that die <br />mining from die QR seams, which is nearest in the F pit mining ti~at began in 1997, has not <br />significantly affected water levels in GP-5 and GPI. <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 wing/spring and lows in late summer/fall. An overall gradual decline in <br />water levels occurred the last few years. Well P-3 is completed in the Lewis Shale outcrop, <br />which is in contact with the Pyeatt alluvium. It demonstrates the same seasonal variations <br />(Fgure A-15) as the P-1 well. <br />2-8 <br />