First Published in 2011. How clean should a stream be? And what represents an efficient way of bringing about desired conditions? These are the basic issues that confront those who are concerned with the husbandry of water resources through pollution control. This book offers form and substance to the concept of water quality management. It is unique in that it provides specific illustration of how theory and methodology of resources allocation may be employed in the formulation of rational decisions affecting water use and reuse.