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<br /> <br />W <br />N <br />~- <br />IV <br />(), <br /> <br />laundering are often particularly sensitive to specific <br /> <br /> <br />dissolved elements in very low concentrations. The <br /> <br />projected industrial growth and expansion of any area or <br />municipality may be limited by the quality qf. the available <br />water supply. Industries critically examine additional <br /> <br />costs involved in treatment necessary to upgrade water <br /> <br />quality at prospective plantsites. These secondary costs <br />may be an important factor in determining the establishment <br />.of highly desirable indust~ies in areas that are otherwise <br /> <br />ideally situated with repsect to terrain, fuel, labor, <br />climate and accessibility. <br /> <br />J];U!:!~~ Q!! QQ~3!U~ !J2!:! <br /> <br />The use of water that is of direct personal concern to <br />the domestic consumer includes drinking, food preparation, <br />laundering and personal hygiene among the most important. <br />Water high in dissolved solids may damage ornamental shrubs, <br /> <br />. trees and lawns. It can also be detrimental to water-using <br /> <br />home appliances. Water high in calcium and magnesium salts, <br /> <br />termed "hard", can cause scaling in hot-water heaters, <br /> <br />pipes, boilers, air-conditioning equipment and significantly <br /> <br />shorten their life. The salts of calcium and magnesium, <br /> <br />unless eliminated by softening, leaves scums, crusts, curds <br /> <br />and rings on household utensils and fixture$ They also <br />cause yellowing of fabrics and toughen vegetables during <br /> <br />24 <br />