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EASTSIDE COAL COMPANY, INC. <br />HYDROLOGY REPORT <br />1987 <br />Extent of t4ining <br />Eastside Coal Company, Inc. has advanced the portals of the Eastside Mine <br />approximately 650 feet to the east. Three entries are driven on the strike. <br />Chemical Parameters <br />The Harvey Gap Outlet above the mine and below the mine show consistent <br />variability. The mine water discharge calcium, sulfate, solids, and <br />conductivity are slightly increased over 1985 and 1986 results. This <br />could possibly be explained by the further advancement of the mine. A <br />further distance away from the outcrop would allow the water to be exposed <br />to the formations for a greater length of time. This would allow more <br />minerals to be absorbed. <br />Flow and Field Parameters <br />The pressure and flow of the 0.5 U/G We11 decreased in 1985 and 1986, and <br />in 1987. The conductivity increased in 1986 and 1987. The pressure <br />and flow of the 1.5 U/G Well are down in 1986 and 1987, with an increase <br />in conductivity in 1986 and 1987. The changes in pressure, flow, and <br />conductivity of the underground wells may be explained by a drop in the <br />water table. Thus, the water is in contact with the formations for a <br />longer period of time, absorbing more minerals. <br />Impacts on Surface and Ground Water <br />No discharge has occurred from the sediment pond SP-1. <br />The hydrology monitoring data is listed on the tables: Flow and Field <br />Parameters; and Chemical Parameters. A comparison of 1987 data with <br />1984, 1985, and 1986 data indicates that there are no impacts on ground <br />or surface water due to mining. <br />