It was the English poet W. H Auden who said many have lived without love, none without water: A sentiment that underlines the half way point of the new decade for action under the simple but poignant theme ‘Water is Life’. The challenge of water in the 21st century is one of both quantity and quality. This publication is about the quality dimension of that equation, highlighting the links between clean water and public health and the health of the wider environment. The fact is that, often as a result of mismanagement, much of the water that is available in developing but.