Abstract

Background, Aim and Scope The urban soil and aquifer system is subject to contamination not only by event-based accidents and spillages but also by the constant emissions from urban drainage systems. Leaky sewer systems, decentralized stormwater infiltration measures or fertilizer application to gardens are omnipresent in the urban soil-water system. Due to the spatial variability and complexity of the input, only few attempts have been undertaken to balance the mass fluxes to the urban soil-groundwater system by using integrated modeling of urban water supply and drainage systems. However, considering the protective function of the soil for the groundwater system, planning authorities are in need of a decision support system, especially regarding the impact of leaky sewer systems. The European Union funded project AISUWRS (Assessing and Improving the Sustainability of Urban Water Resources and Systems) was completed at the end of the year 2005. The overall scope of the initiative was to assess and improve the sustainability of urban water resources and systems with the help of computer tools.

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