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Many water demands such as industrial, agriculture can be satisfied with water of less than potable water quality. The use of reclaimed water for non-potable purposes offers the potential for exploiting a new resource that can be substituted for the existing sources. By replacing the potable water used for non-potable purposes an increased population can be served for the existing source. The greatest benefit of urban reuse systems could be their contribution in delaying or eliminating need to expand potable water supply and treatment facilities. The usual constraints are lack of financial...