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6 <br />controlled at the wash plant. A system for communication from <br />the underground dewatering station to wash plant will be utilized <br />in coordinating system start-up and shutdown. , <br />System Monitoring and Instrumentation <br />Solids flow, fluid flow, slurry pump discharge pressures, <br />power consumption and recording instrumentation will be specified. <br />The following parameters are expected to be continuously monitored: <br />a. Coarse solids flow rate (weight) <br />b. Water flow rate to coa rse solids slurry preparation <br /> tank (volume) <br />c. Fine slurry flow rate (volume) <br />d. Coarse and fine slurry pump discharge pressure <br />e. Coarse and fine slurry pump power consumption. <br />All one-line continuous measurements will be documented on a <br />multichannel chart recorder. All flow rates will be totalized <br />for wear data analysis. <br />Effects of System Design on Mine Operation • <br />In this task the effects of underground disposal of mining <br />waste on mine operations will be qualitatively analyzed. This <br />analysis will include evaluation of changes in: <br />a. Mining productivity (coal removal/man) <br />b. Health and safety of production and backfill personnel <br />as affected by potential reduction in ventilation, and <br />increase in methane, dust and noise levels <br />c. Surface subsidence <br />d. Roof support. <br />The qualitative conclusions generated in this task will be <br />developed by FMA, Radmark and WSC team members after completion <br />of the conceptual design. <br />u <br />