Stormwater Harvesting & Reuse: Kalkallo, Vic
Posted in Models by Kate Archdeacon on August 18th, 2010
Source: Smart Water Fund
Yarra Valley Water has won the ‘Master-planning and design’ category of the 2009 Stormwater Excellence Awards for its proposed Kalkallo Stormwater Harvesting and Reuse Project, at the new Merrifield development in Melbourne’s north. The project will involve capturing and treating stormwater from a 160 hectare catchment area within commercial land at Merrifield. In the future, it is hoped that the treated water may supplement the drinking water supply across the development and Melbourne’s growing northern corridor. In 2009 the project received more than $9.6 million funding under the first round of the Federal Government’s ‘Water for the Future – National Urban Water and Desalination Fund’.
The stormwater will be collected via traditional stormwater drains. It will then be treated in a series of architecturally-designed wetlands along the Hume Highway frontage of Merrifield, including settling ponds and wetlands and then stored in a large dam. The wetlands will incorporate best-practice sustainability design principles, which will manage the quality and quantity of stormwater collected from the area. From there the water will pass through a state-of-the-art treatment plant, which will produce a drinking-water-quality end product, used to supplement the development’s recycled water supply. Eventually, it is hoped it can supplement the potable water supply when rigorous monitoring and data collection demonstrates that it is safe to do so.
“This water sensitive approach at Merrifield will be a leading example for future cities. It shows how the water industry is proactively creating solutions for the community to maximise use of alternative water sources, and reduce the excess stormwater degrading our streams and waterways,” says Mr Tony Kelly, Yarra Valley Water Managing Director. “The Kalkallo Stormwater Harvesting and Reuse Project is set to be a project of international significance, showcasing how urban water infrastructure can be designed differently to deliver a more resilient water solution.”