3rd
International Rainwater Cistern Systems Conference
Khon Kaen, Thailand
- January, 1987
Section D: Policy and Planning
Paper D.1
Rainwater Catchment Rationing
Richard J. Heggen
Associate Professor
Department of Civil Engineering
University of New Mexico
Albuquerque
NM 87131
USA
Abstract
In standard practice, rainwater catchment systems are
designed to satisfy a fixed demand. An economic demand function relating
consumption to price (the deterministic component of which is related to construction
and maintenance costs, the stochastic component of which is related to the
consequences of system failure) is not made explicit. Several studies have
assumed some scheme of rationing in drought conditions, but little
consideration has been given to a common basis for such analysis.
Practices of water rationing are surveyed. Several
approaches applicable to small-scale catchment management are identified. A
case study in northern New Mexico is evaluated with a one-parameter demand
function. From the perspective of penalty minimization, the more successful
rationing plan is Identified.
PDF of full document available
to members (12pp, 450kb)
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