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Wells, Appendix A), is presented as a reference for the reader. No new cells were drilled in 1991. Wafer Level measurements obtained in non-flowing wells are taken with either a Soil Test M-scope, a Slope Indicator Water Level Indicator, or in the case of a few shallow alluvial cells, directly from a steel tape. Pressure readings (in psi) obtained from flowing cells with pressure gages are multiplied by 2.31 to obtain head in feet. For the sake of brevity, the GW-S prefix that precedes all well names will be dropped thrdughout this report. As an example, Well GW-S46-A will be referred to as Well 46-A. Alluvium. The alluvial monitoring cells are located along Cow Camp (Wells 46-A and 69-A), Bond (Well 68-A ), Grassy (Wells 33-A and 34-A ), and Little Grassy Lreeks (Wells 6-A, 31-A7, 31-A2, and 32-A). These wells exhibit seasonal fluctuations in cater levels. The spring runoff-infiltration stimul of es a water level rise, and as the drier fall season approaches, water levels decline. Generally, eater levels were shallower this year due to an increase in precipitation from previous years. Lennox Overburden/Lennox-Wadge Interburden. Wells completed in these formations exhibit normal seasonal variations, that is, lowest water levels in the fall antl winter, and highest in the late spring/early summer after the spring runoff recharge event. Well 42P 1-LWI has shown a decline in water levels since August 7985 due to dewatering from an adjacent mine pit. A slight increase in eater levels, houeve r, was noted in 1989 through 1991. Well 42P 2-LO has shown a slight increase in water levels over The past years up To the end of 1988, due likely to the stripping of adjacent overburden material with a resulting increase in the recharge area. The dramatic increase in eater Levels (approximately 30 feet) for well 42P2-LO in 7989, along with the smaller increase noted earlier at adjacent Well 42P1-LWI, were likely due to bac kfilling of the adjacent mine pit performed in the fall of 7989. The highuall side of this pit was dozed and graded to fill in the pit and reduce the height of the highuall. This regrading cut into the Lennox overburden and Lennox-Wadge interburden, thereby increasing the available area for potential recharge to these formations. The resaturation of spoils in the bac kfilLed pit may have also contributed to the increase in water levels. Wells 21-LW] and 47-LW1 both exhibit normal seasonal variations. Wadge Coal. Wells 16-W and 17-W are in direct hydraulic communication with the Wadge Impoundment (002 pond) and shooed a significant decline in water levels in the winter of 86/87, corresponding with the low level in that pond caused by pumping water for the truck 3