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The DSS links the individual models together and supports the selection and comparison of predefined scenarios.

The DSS enables users to track potential groundwater contaminants from the source, such as a leaking sewer, and the attenuation and movement of contaminants through the unsaturated zone until they reach the aquifer. The major benefit from the application of the DSS is to provide a holistic urban water system tool that enables water services to be represented in a flexible manner and provides the ability to represent and investigate the implications of a wide range of conventional and emergent techniques for providing water supply, stormwater and wastewater services.

Users are also able to explore the likely implications of critical uncertainties such as changes to water consumer behaviour or climate change. The DSS allows for the processing of predefined scenarios, and the quantification of key indicators for scenario evaluation.

This will allow end-users to develop best practice response to different scenarios based on the potential for groundwater contamination. For example; modifying customer preferences, groundwater treatment or introducing system improvements that minimise contamination. A comprehensive output summary table is produced for each scenario. The output of the DSS is then available for further implementation into numerical groundwater flow and transport models.

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