International Rainwater Catchment Systems Conference
Catchment: An Answer to the Water Scarcity of the Next Millennium."
Petrolina, Brazil - July 1999
Section 4: Technology of Rainwater Catchment Systems
Evaluation of rainwater storage alternatives on San
Andrés Island, Colombia
David Garcés Córdoba & Opal Bent
Regional Corporation for the Sustainable Development
of the Archipelago of San Andrés, Old Providence and Santa
We proposed and evaluated different options for a cistern of
a "typical" house on San Andrés, Colombia, a very small island (27 km²) in the
Caribbean facing Nicaragua's coast. On San Andrés, underground water supplies
are very limited and the geologic conditions for storing surface water are not
We have carried out an economic study for the different
storage alternatives to determine the most suitable material for the construction
of the cisterns, be they concrete, modular, polyethylene or wood. 5 people
inhabit a "typical" San Andrés house. We calculate a gathering area of 75 m²
and an optimal cistern volume of 20 m³.
PDF of full document (5pp, 26kb)
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