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decreased from a high of 6558 ft, in 1986 to a stable level of 6548 <br />ft. +/- in 1992-1993. <br />Figure A-31 presents the changes in water-level elevation for <br />alluvial well P1 located in the Pyeatt drainage north of the PA. <br />This data demonstrates classic seasonal responses, highs in <br />winter/spring and lows in winter/fall. The overall trend is <br />continuing the decline begun in 1988. Well P3 is completed in the <br />Lewis Shale outcrop, which is in contact with the Pyeatt alluvium. <br />It demonstrates the same seasonal variations (Figure A-32) as the <br />P1 cell, but in a more subdued range. It shows a larger response <br />to spring recharge reflecting lower transmissivities in the shale <br />than in the alluvium. <br />Wells P5 and PS are located in the E. Pyeatt drainage below A <br />pit. P8 is above P5 and within 600" of A pit. They are completed <br />in the outcrop of the 2nd White Sandstone and 3rd White Sandstone <br />aquifers, respectively. Each well demonstrates a gradual declining <br />trend with superimposed seasonal variations. These trends are <br />interpreted as natural. <br />Water-level elevations for the Johnson and Flume Gulch <br />alluvial cells, Coy and J1, are presented in Figure A-35 and A-36. <br />Coy shows the natural response of the alluvium to a decline in <br />recharge. The J1 water levels are fairly steady, increasing <br />slightly in 1993. This is due to mine discharge into Johnson Gulch <br />maintaining water levels. <br />Well 81-03a is a flowing 3rd White Sandstone well northwest of <br />the PA. Figure A-37 illustrates a decreasing trend with seasonal • <br />2-10 <br />