Abstract
Rainwater harvesting is the oldest technology developed by man to provide water for domestic use. In Ghana, the challenges posed by dry wells, as well as excessive levels of contaminants especially minerals in the groundwater resources of some geological formations makes harnessing of rainwater for household use unavoidable.

Whiles researchers are looking for efficient ways of dealing with contaminants associated with these water sources, focus is gradually shifting to the development of enhanced methods for rainwater harvesting. Small communities are increasingly accepting rainwater harvesting as a technology choice capable of meeting their water demands. If rainwater resources are managed well, emerging phenomenon like flooding and erosion in our communities could be contained. The resource if properly harnessed has benefits, which would contribute to meeting our millennium development goals (MDG) on water and environmental sanitation by year 2015.

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