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.