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<br />;. <br /> <br />FEa 21°87 <br />EASiSIDE COAL COMPNNY, IPJC. PlriiVci~ LAND <br />CiEr/LAfilATION DiViSi(~h <br />HYDROLOGY REPORT <br />1986 <br />Extent of hli ni ng <br />Castside Coal Company, Inc. has advanced the portals approximately G50 <br />feet to the east. Two entries are driven on the ;hike. <br />Chemical Parameters <br />The Harvey Gap Outlet above the mine and below the mine :how rrm;isCr~nt <br />variability. The mine water discharge calcium, magnesium, sulFaCe, solids, <br />and conductivity are slightly increased over 198!i results. This could <br />possibly be explained by the further advancement of the ininr.. A filn~ther <br />distance away from the outcrop would allow the water to be exposed ro the <br />formations fora greater length of time. This would allow more minerals <br />to be absorhed. <br /> <br />iii ii iii iii iiii i ii i <br />999 <br />Flow and Field Parameters <br />The pressure of the 0.5 U/G well is down from 1985 and decreases in 1986. <br />The conductivity is up slightly. The pressure and flow of the 1.5 U/G <br />well ar•e down in 1986 with the conductivity increased. The pressure, flow, <br />and conductivity of the underground wells may be explained b,y a drop in <br />the water table. Thus, the water is in contact with the formations for <br />a longer period of time, absorbing more minerals. <br />Impacts on Surface and Ground Water <br />The hydrology monitoring data is listed on the tables: Flow and Fielcl <br />Parameters; and Chemical Parameters. A comparison of 198G data with <br />1985 data and baseline data indicates that there are no impacts nn ground <br />or surface water due to mining. <br />