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Sediment removal to improve water quality in the Vasse Estuary

08 June, 2017

Wildlife and the local community are set to benefit from the removal of a build-up of organic sediments behind the Vasse Surge barrier. Water Corporation are currently carrying out work to remove the sediment which contributes to low oxygen levels and poor water quality in the Vasse Estuary.

Water Corporation South West Regional Manager John Janssen, said “We are working closely with our Vasse Taskforce partners to look at opportunities to improve water quality in the Vasse Estuary, and the work to remove this sediment offered the perfect opportunity for us to make a contribution.”

“The sediment is being removed with a suction pump mounted on a floating pontoon in the estuary and will then be transported to the Busselton Wastewater Treatment Plant for safe processing,” he said.

Water quality monitoring being undertaken by the Department of Water is showing that the technique being used is having minimal impact on the surrounding environment. “We did expect the disturbance of sediment to result in a decline in dissolved oxygen, but is hasn’t” said Kath Lynch from the Department of Water.

“This project forms part of the wider Revitalising Geographe Waterways initiative and represents a real win for the community and the environment. It is a great example of what can be achieved when we work together towards a shared goal,” Mr Janssen said.

The work to remove the sediment commenced earlier this week and is expected to take around a week to finish. For safety reasons, public access to the surge barrier will be restricted during this time.

“We appreciate and thank the community in advance for their patience and understanding while we carry out this important clean-up operation,” Mr Janssen said.