New stormwater management plan to cool Western Sydney

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An Australian first approach to waterways and stormwater management will play a key role in cooling Western Sydney under a new integrated Sydney Water management plan unveiled for the Mamre Road and Aerotropolis precincts.

Under the plan, stormwater will be diverted into natural water channels and wetlands instead of relying on buried concrete pipes or drains. The stormwater will then be collected, treated and harvested as recycled water to support greening in the local area.

Minister for Lands and Water Kevin Anderson said the new plan takes a region-wide approach to stormwater and waterway management delivering the greatest benefit to the community.

“Water management is fundamental to the creation of a liveable, workable and successful city, so it’s vital we get this right from the outset,” Mr Anderson said.

“The Aerotropolis precincts will be transformed into a thriving commercial city with new jobs, new homes and new open spaces.

“By managing stormwater across the entire landscape and integrating it into a region-wide system, we will deliver the infrastructure required for the precinct to thrive while providing additional open spaces for the community to enjoy.”

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Minister for Western Sydney Stuart Ayres said this strategy will be welcomed by local communities and save precious water in the long term.

“The NSW Government has outlined in the Greater Sydney Water Strategy that Sydney’s green spaces and tree canopy will need about 68 billion litres of water per year by 2035,”  Ayres said.

“By exploring options like stormwater, and circular economy principles in our planning, we can reduce or eliminate the need to use our precious drinking supply to support a cooler, greener city.”

Sydney Water has been appointed to undertake the planning, delivery and operation of major stormwater infrastructure for the precincts.

Sydney Water Managing Director Roch Cheroux said this is a once-in-a-generation opportunity to develop innovative infrastructure and use existing landscapes like creeklines to complement the natural environment and integrate into thriving and liveable places.

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“A range of recreational activities can be enjoyed within and around planned stormwater infrastructure such as cycle and walking paths, picnic spaces, playing fields and playgrounds,” Mr Cheroux said.

“Our vision is to create a better life for customers through the provision of world-class water services. This means ensuring waterways are protected and open spaces are cool and green all year round – making the Aerotropolis a place where people want to live, work and visit.”

This new approach will help deliver key government objectives for the Western Parkland City including healthy waterways, urban greening and cooling, circular economy and a resilient water supply with Sydney Water continuing to work with relevant councils and government to develop the final implementation plan to be released later this year.