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1 ' Coal Flows ' Plots of the measured discharges for No. 5 Mine are presented in Figures 22 and 23. The flows from the No. 5 Mine are measured at the discharge end of the settling ponds and also measured by a totalizing flow meter on ' the dewatering sump pumps. The flow meter readings for the No. 5 Mine were only operational in November and December of 1986. The measured discharge from the ponds reflects the intermittent pumping of the mine. None of the flow rates significantly exceeded the predicted values of 760 ' to 890 gpm for the No. 5 Mine. The 1985 average discharge from the No. 5 Mine was 860 gpm from the ponds and 600 gpm for the sump. The flow meter readings are probably more representative. ' Water Quality ' Summaries of the water quality data for the mine discharge is presented in Tables 19 and 2U. The mine discharge is NPDES discharge point No. 003. The mine discharge has been generally constant through time. A plot of ' dissolved solids is presented in Figure 24. It indicates that the average dissolved solids in the discharge water have increased from about 790 mg/1 in 1982 and 1983 to approximately 890 mg/1 in 1986. This increase may be ' due to the longwall mining which was initiated in May 1985. This increase in dissolved solids has leveled off in 1986. Since the dissolved solids do not appear to be increasing further and they are not significantly higher than previously estimated, the low flow mass balance prediction ' will not be significantly affected. No violations of the NPDES permit were detected in 1986. ' ALLUVIUM ' Sediments in the Williams Fork River Alluvium (3 wells) are monitored. All three wells are in the general area of the loadout facilities and underground discharge sediment ponds. ' Water Levels ' Ground normal water levels in the alluvium have seasonal fluctuations apparently remained fairly regular, with related to changes in river levels and an increase in 1984 due to increased runoff beginning the spring of that year. Ground water levels in the alluvium are plotted in ' Fiyure 25. A piezometric map for the Wi lliams Fork Alluvium (December 1986) is presented in Figure 26. ' Water Quality ' Summaries of the water quality data for the alluvial wells are presented in Tables 21 through 26. N plot of field electrical conductivity versus time is presented in Figure 21.