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<br />ro <br />. . <br />(' .'., <br />.. , <br /> <br />At Hunter, the presoaened saline water would be used in existing <br />wet cooling towers, and discharge would then be circulated <br />through the saline water cooling tower. Blowdown* from the <br />tower would be about 550 acre-feet per year of 120,000 mg/L <br />saline water which would be disposed locally or carried by <br />the liquid CG?/coal slurry pipeline to Sevier Dry Lake for <br />solar evaporation. The alternative selected will depend on <br />economics and technical issues dealing with the feasibility <br />of transporting saline water in the CO2/coal slurry line. <br /> <br />Huntington Powerplant, near Price, is also being considered <br />as a potential site for saline water use and details are being <br />formulated. <br /> <br />..., <br /> <br />, . <br />. . <br /> <br />C) <br /> <br />Stage II. - Stage II would be designed to increase the coal- <br />carrying capacity of Stage I from 10 million tons to an ultimate <br />capacity of 30 million tons annually. The amount of saline <br />water transported would be increased from approximately 18,000 <br />to 36,000 acre-feet. Map E illustrates this stage, .which <br />would be designed and constructed from 1986-88. <br /> <br />The Stage I liquid CO2/coal slurry line would be integrated <br />with the Stage II slurry line running from western Colorado, <br />through Utah, to the proposed White Pine Power Project in <br />east-central Nevada. This would allow for transport of Utah <br />coal to IPP in Utah, and of Colorado and/or Utah coal to White <br />_Pine. . <br /> <br />In Stage II, coal from eastern Utah and/or western Colorado <br />could be transported by railroad or truck from local mines <br />to central preparation plants (such as Axial, Colorado) for <br />slurrying and injection into the pipeline. <br /> <br />In addition to water from the Price-San Rafael Rivers collected <br />in Stage I, saline water would be collected from Glenwood- <br />Dotsero Springs, Colorado, and Dirty Devil River, Utah, and <br />carried to IPP for use in a saline water cooling tower to <br />be installed. Approximately 15,500 acre-feet of GTenwood- <br />Dotsero Springs water (average salinity level of 13,430 mg/L) <br />and up to 2,715 acre-feet of Dirty Devil water (7,000 'to 30,000 <br />mg/L) would be used. Disposal would be in lined evaporation <br />ponds or in Sevier Dry Lake. Use of water from Glenwood-Dotsero <br />Springs would remove 281,000 tons of salt per year from the <br />Colorado River, resulting in a reduction of 28 mg/L of TDS . <br />at Imperial Dam. Use of Dirty Devil River water will reduce <br />the Colorado River's salt load by 38,000 tons per year, with <br />a reduction of 3.8 mg/L of TDS at Imperial Dam. <br /> <br />The extended pipeline system would allow loading of nahcolite <br />in southwestern Colorado. Nahcolite, a substance useful in <br />reducing sulfur dioxide (S02) emissions in powerplant stack. <br /> <br />*Blowdown is the water released from powerplant cooling towers <br />when it becomes unusable due to high concentrations of salts <br />through evaporation. <br /> <br />22 <br />