Dunsborough’s Non-Potable Water Project Commenced

Published on Tuesday, 30 November 2021 at 4:32:17 PM

The City is working towards the completion of Stage 1 of the ‘Dunsborough Non-Potable Water Network’ project.

The production and monitoring bores at Mewett Road, Quindalup were completed by the City in late January 2021, with the production bore constructed to the Sue Coal Measures Aquifer.

Construction of a 3.5km pipeline from the Mewett Road bore to the current storage tanks at the Dunsborough Lakes Sporting Complex (DLSC) is now well underway. An additional tank will be installed on site increasing our water storage capacity to 1.44 megalitres. The provision of a three phase power supply to the Mewett Road bore pump station by Western Power is anticipated by February/March 2022.

Construction of an additional production bore at Mewett Road (to the Leederville Aquifer) is expected to be completed by the current developer of the Dunsborough Lakes Estate by February/March 2022, with the City allowing this additional supply to be transported through its pipeline infrastructure to the same storage tanks. The provision of this contributory source of non-potable groundwater for green space irrigation will satisfy conditions of subdivision and development required of that developer.

Oval construction on City-owned land at the DLSC is estimated to be completed by February/March 2022, meaning that an adequate supply of non-potable groundwater should be available to irrigate and establish the expansive grassed areas in a timely and effective way.

When completed, Stage 1 of the project will enable a viable and sustainable non-potable water supply to meet short-term demands for irrigation purposes in the area of Dunsborough Lakes. As many as 5 or 6 additional bores will need to then be constructed by the City over coming years to ensure the ongoing supply of irrigation water to an expanded area of ‘green infrastructure’ in and around Dunsborough Lakes and the Dunsborough Town Centre.  Current shortfalls in the supply of water are estimated at some 25 megalitres per annum - a shortfall predicted to rise to 528 megalitres per annum by 2060 without further sources of strategic water supply being identified and constructed.

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