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• and construction personnel uses - maximum demand 800 gpm (300- <br />400 acre-feet per year). <br />The usage and disposition of water during normal operations <br />is shown in Figure G-3. <br />Water supplied to the plant will eventually be consumed or <br />released to the atmosphere by evaporation. Water used in the <br />processed shale moisturizing process will constitute a major <br />consumption of water. The processed shale pile will be the <br />point of utilization for waste water streams which are not <br />cecycled. Other consumptive uses of water will be: the steam- <br />reforming process to make hydrogen, drinking water, and the <br />revegetation program. Water used for dust control in mining <br />and crushing operations eventually will be released to the <br />atmosphere by evaporation. Water used for moisturizing processed <br />shale or for dust control on the processed shale embankment <br />• will either evaporate or become part of the processed shale <br />embankment. <br />Water recovered from the various process units and water treatment <br />facilities within the plant complex will either be recycled <br />within the retorting and upgrading units or utilized to moisten <br />processed shale. <br />The cooling water system is comprised of a complex network of <br />piping over the entire processing area. About 36,000 gpm of cool- <br />ing water will circulate throughout the plant and will eventually <br />return to a multiple cell cooling tower. The cooling tower will <br />incorporate an induced draft system and will produce a visible <br />water vapor plume after the vapors have cooled to their condensa- <br />tion point. Water evaporated in the cooling towers will not contain <br />dissolved salts. Cooling water blowdown will be used to moisturize <br />processed shale. <br />• <br />G-30 <br />