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2.2.1 Ground Water Monitoring Data Groundwater monitoring data consists of water <br /> levels measurements. Tabulation of the data is included in Appendix C. Hydrographs for <br /> the 16 stations (monitor holes) from which water level data were collected are included in <br /> Appendix D. <br /> 2.2.1.1 Alluvial Water Level Data Water level data is still collected from the one <br /> remaining original alluvial aquifer monitoring hole (Qal-5). Kenney Reservoir inundated five <br /> other alluvial monitoring holes. A hydrograph of the water level data for Qal-5 is contained <br /> in Appendix E. The location of Qal-5 is shown on Plate 1 in the pocket of this report. The <br /> Qal-5 hydrograph shows a significant increase in the alluvial water level of the White River <br /> since the second half of 1985. This rise was due to the filling of Kenney Reservoir. Since <br /> that time, fluctuations reflect the seasonal rise and fall of the White River as it enters <br /> Kenney Reservoir. <br /> 2.2.1.2 Alluvial Water Quality Data The water quality data for Qal-5 is contained in <br /> Appendix E. The statistical summary of the data is also contained in Appendix E. The fifth <br /> annual hydrology report noted that the general increase in the average TDS that started <br /> when Kenney Reservoir was filled was beginning to slow down. There has been a <br /> generally decreasing trend since 1992. Based on the data collected during the past water <br /> year, the TDS value was 2770 mg/I. This compares to values for the previous two reporting <br /> period of 2700 mg/I and 2270 mg/I indicating that the TDS level has stabilized. A graph <br /> showing the magnesium, chloride and TDS levels for Qal-5 is also included in Appendix E. <br /> The water quality of the White River is considerably better than that in the alluvium <br /> indicating that permeability in the alluvium is restricted resulting in a relatively low degree of <br /> communication between the river water and the water in the alluvium. The existence of <br /> Kenney Reservoir decreases the groundwater gradient that may inhibit the natural tendency <br /> for the alluvium to flush itself of the higher dissolved solids content. The potential effects, <br /> therefore, were projected that the dissolved solids of the White River alluvium in the vicinity <br /> of Scullion Gulch would increase initially as prior unsaturated zones become saturated. <br /> TDS would then gradually decrease with time to near or slightly above baseline conditions <br /> as these zones are slowly flushed of their salts. <br /> 2.2.1.3 Bedrock Water Level Data Hydrographs for the sixteen (16) bedrock monitoring <br /> holes are contained in Appendix D. The locations of the holes are shown on Plate 1 in <br /> the pocket of this report. As noted in the original Deserado Mine permit application, the <br /> three zones being monitored (upper sandstone facies, siltstone and coal facies, and the <br /> lower sandstone) identify three different stratigraphic zones which lack the characteristics <br /> of an aquifer. The strata are too tight with little yield as demonstrated by pumping tests. <br /> The"upper sandstone facies" holes are designated by a name ending in "U". <br /> 5 <br />