2003•28th International Hydrology and Water Resources Symposium: About Water; Symposium ProceedingsRequires access
The Impact of Supply and Demand Management Approaches on the Security of Sydney's Water Supply
Peter J Coombes, Linda Holz, George Kuczera
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Abstract
The impact of supply and demand management approaches on the security of Sydney's water supply was evaluated using the non-parametric regional demand model [Coombes et al., 20021 and the WATHNET network linear headworks model [Kuczera, 19921. The use of different pump marks for extractions from the Shoalhaven River, various frequencies of water restrictions, rainwater tanks and demand management measures has been investigated. An increase in acceptable frequency of water restriction to 5% and a pump mark of 70% will defer the requirement to augment the water supply headworks system by 26 years. The use of demand management measures only will not defer augmentation and installation of 5 kL rainwater tanks for hot water, toilet, laundry and outdoor uses can defer augmentation beyond 2090. A Pareto diagram is employed to determine optimum solutions.