The Urban Water Cycle
This graphic illustrates the impact of human activity on groundwater. It shows that groundwater is obtained from periurban wellfields and urban wells, then used and disposed of as wastewater through pluvial drainage, piped sewage and on-site sanitation and industrial effluent disposal. It also shows that wastewater is treated and then reused for irrigation, with excess flows re-entering the aquifers.
Year: 2005
From collection: Vital Water Graphics
Cartographer: Philippe Rekacewicz, Delphine Digout, UNEP/GRID-Arendal