Dual Water Systems—Design

Abstract

Dual systems that distribute two grades of water, both safe, offer a means of wise and efficient management of water resources and should continue to be explored.

La présence d’un réseau de distribution d’eau brute dans une commune

“…La qualité, la quantité et la pression disponible de chaque système dépen-dent des usages prévus pour chaque type d'eau (Haney et Beatty, 1977). Nous appellerons par la suite « double réseau », le réseau distribuant de l'eau non potable.…”

Economics of Water Resources: From Regulation to Privatization

“…Based on population data, he developed cost functions of dual water systems and incorporated them into his model. Haney and Beatty (1977) prepared cost appraisals for dual and single water systems and applied them to hypothetical situations. They assert that there is a large element of risk in cost estimates in abstract situations.…”

Economic efficiency and investment timing for dual water systems

“…The problem is now to find when is the "best" time (if any) to start implementing the project. This optimmn time should correspond to the maximization of the net present value of the project [Mishan, 1976].…”

“…Based on population data, he developed cost functions of dual water systems and incorporated them in his model. Haney and Beatty [1977] prepared cost appraisals for dual and single water systems and applied them to assumed hypothetical situations. However, the authors recognized that "there is a large element of risk in cost estimates in abstract situations."…”