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• Process Water Treatment and Storage <br />All water used directly in the mining, crystallization and surface <br />cooling operations must be treated to remove hardness. The raw <br />water will be softened in a water softener unit to remove calcium <br />and magnesium ions The softener includes a common brine tank to <br />regenerate the resin beds. <br />Softener regeneration wastes drain to the waste water pond. To <br />minimize the water load on the waste pond, softener production <br />will be minimized. <br />The softened water is stored in a 72,000 gal carbon steel tank <br />located in the process tank farm. A 100 gpm process water pump <br />• distributes process water to the plant users. <br />Potable Water Supoly <br />Bottled drinking water will be supplied from off-site. Process <br />water (softened) is to be supplied to showers, toilets, sinks, <br />safety showers and other services normally considered "potable". <br />These systems will be piped such that a potable water treatment <br />system can be added at a later date. <br />Domestic Sewage Disposal Svstem <br />The criteria for design of the sewage disposal system was based on <br />Colorado Department of Health guidelines. A total of 27 personnel <br />(office/plant) were utilized to calculated daily sewage flow of <br />• 720 gpd. Holding tank capacity is 1000 gallons and absorption <br />13 <br />