New deep groundwater bores

back to current projects

Project goal:

Secure Perth’s drinking water supply by expanding our deep groundwater network

Status:

In construction

Delivery Date:

2017 - 2020

What’s happening?

We are expanding our deep groundwater network as part of our plan to secure Perth’s water supply.

A total of 15 new bores are being drilled in Perth’s northern suburbs, including:

  • two recharge bores and two monitoring bores each at the Northern Recharge Site in Neerabup, and at the Southern Recharge Site in Wanneroo as part of the Groundwater Replenishment Scheme expansion 
  • one abstraction bore each at the Neerabup Groundwater Treatment Plant in Tamala Park, Lysander Reserve in Heathridge, and Beldon Park and Gradient Park in Beldon as part of the Neerabup Groundwater Scheme expansion to compliment the Groundwater Replenishment Scheme expansion
  • one abstraction bore each at Sheldrake Reserve in Stirling, Yanchep and Mirrabooka to increase our groundwater abstraction capacity.

Where’s this happening?

The locations of the new recharge, abstraction and monitoring bores were selected in consultation with the Department of Water and Environment Regulation.

The location of these sites has largely been informed by studies undertaken by the Department that looked at how best to recharge and abstract from Perth’s deep underground aquifers.

Why’s this happening?

We have been working with the Department of Water and Environmental Regulation on sustainable, future approaches to groundwater abstraction for potable water supply.

By increasing the number of deep groundwater bores, we can increase the capacity and flexibility of our operations, allowing us to support the sustainable use of the Gnangara groundwater system.

Contact us

Please email groundwater.replenishment@watercorporation.com.au if you would like more information about the project.

What’s the difference between the types of bores?

The recharge and monitoring bores are being constructed as part of the Groundwater Replenishment Scheme Expansion. The recharge bores will allow us to recharge highly treated, drinking quality recycled water into Perth’s deep underground aquifers to be stored for future abstraction, treatment and use. The monitoring bores will be used to sample groundwater at these locations.

The abstraction bores are being constructed to compliment the Groundwater Replenishment Scheme Expansion, allowing us to draw additional groundwater from Perth’s deep underground aquifers for treatment and use.

How are the bores constructed?

Construction involves site preparation and geotechnical surveys, drilling of the deep underground bores in stages, followed by construction of the above ground bore infrastructure including a pump and an electrical building.

How deep are the bores?

Bores are being drilled to Perth’s two deepest confined aquifers – the Leederville Aquifer between around 300 metres and 500 metres deep and the Yarragadee Aquifer between around 900 metres and 1400 metres deep.

Will construction of the bores impact my private bore?

No. We are drilling to Perth’s two deepest aquifers whereas private bores interact with the shallowest aquifer known as the Superficial Aquifer. As these aquifers are confined, they do not interact with each other.

Will construction of the bores impact local lakes and waterways?

No. We are drilling to Perth’s two deepest aquifers whereas lakes and waterways interact with the shallowest aquifer known as the Superficial Aquifer. As these aquifers are confined, they do not interact with each other.


back to current projects