Evolution of Water Supply and Wastewater Disposal
This graphic shows the changes in water supply and wastewater disposal that occur through four stages of growth of a settlement: early settlement; the town becomes a city; the city expands and the city expands further. The changes include increased groundwater pollution and changes in pluvial drainage, the water table and wellfields.
Year: 2005
From collection: Vital Water Graphics
Cartographer: Philippe Rekacewicz, Delphine Digout, UNEP/GRID-Arendal