Alkimos Seawater Desalination Plant Investigations

Artists impression of future Alkimos Seawater Desalination Plant

As part of our long term planning to secure Perth’s water supply, we have completed feasibility investigations and will seek environmental approvals for a seawater desalination plant at Alkimos. The Alkimos Seawater Desalination Plant is one of a number of water source options being considered, with a decision on when a new source may be needed for Perth dependent on a range of factors, including population growth, climate and demand.

What we investigated?

  • A 25 billion litre per year seawater desalination plant, with future expansions of 25 billion litres per year to follow
  • Two new ocean pipelines, below the seabed, that bring seawater into and take brine (salty water) away from the plant
  • A water transfer pipeline to take water from Alkimos to Wanneroo, where the water will be connected to Perth’s water supply
  • Understanding environmental impacts
  • Working with the community to understand its needs

We are also investigating a co-located groundwater treatment plant to be incorporated within the Alkimos Water Precinct.

You can read more about the investigations here.

Working with the community

We invited members of the Alkimos and surrounds community to be a part of our investigations. You can read more about our conversations with community here .

We also met with dozens of stakeholders, with feedback received reflected in our investigations.

We will continue to keep the community and stakeholders updated as we progress our planning.

Protecting the marine environment

Extensive research has been conducted to ensure the offshore pipelines required to bring seawater in and take brine away from the plant are located and constructed with the least possible environmental impact.

You can read more about how we are planning to protect the marine environment here.

Impacts on the local community

A priority of our investigations is minimising disturbance to surround homes and businesses during plant construction and operations. You can read more about how we have designed the plant to reduce noise and screened it from homes here.

Pipeline to Wanneroo Reservoir

Water from the plant will join Perth’s water supply through a 35km pipeline. You can read more about the pipeline here.

Have your say and register to stay updated

You can have provide feedback on the proposed plant or register to keep updated by emailing community.engagement@watercorporation.com.au

By registering your details, you can stay informed and continue to input feedback as we progress in the approval process.

As part of our long term planning to secure Perth’s water supply, we have completed feasibility investigations and will seek environmental approvals for a seawater desalination plant at Alkimos. The Alkimos Seawater Desalination Plant is one of a number of water source options being considered, with a decision on when a new source may be needed for Perth dependent on a range of factors, including population growth, climate and demand.

What we investigated?

  • A 25 billion litre per year seawater desalination plant, with future expansions of 25 billion litres per year to follow
  • Two new ocean pipelines, below the seabed, that bring seawater into and take brine (salty water) away from the plant
  • A water transfer pipeline to take water from Alkimos to Wanneroo, where the water will be connected to Perth’s water supply
  • Understanding environmental impacts
  • Working with the community to understand its needs

We are also investigating a co-located groundwater treatment plant to be incorporated within the Alkimos Water Precinct.

You can read more about the investigations here.

Working with the community

We invited members of the Alkimos and surrounds community to be a part of our investigations. You can read more about our conversations with community here .

We also met with dozens of stakeholders, with feedback received reflected in our investigations.

We will continue to keep the community and stakeholders updated as we progress our planning.

Protecting the marine environment

Extensive research has been conducted to ensure the offshore pipelines required to bring seawater in and take brine away from the plant are located and constructed with the least possible environmental impact.

You can read more about how we are planning to protect the marine environment here.

Impacts on the local community

A priority of our investigations is minimising disturbance to surround homes and businesses during plant construction and operations. You can read more about how we have designed the plant to reduce noise and screened it from homes here.

Pipeline to Wanneroo Reservoir

Water from the plant will join Perth’s water supply through a 35km pipeline. You can read more about the pipeline here.

Have your say and register to stay updated

You can have provide feedback on the proposed plant or register to keep updated by emailing community.engagement@watercorporation.com.au

By registering your details, you can stay informed and continue to input feedback as we progress in the approval process.

  • Meet the Team: Alkimos Information Showcase – August 19

    over 1 year ago

    We will be joining Lendlease and other government departments and agencies at the Alkimos Information Showcase event on Sunday, August 19 from 11am to 2pm. Come visit the Water Corporation stall to learn about our plans for Alkimos or for some great waterwise information and tips.

    You can also call us anytime by contacting Community Engagement Senior Advisor Tarryn Truscott via email to community.engagement@watercorporation.com.au or phoning 9420 3488.

    We will be joining Lendlease and other government departments and agencies at the Alkimos Information Showcase event on Sunday, August 19 from 11am to 2pm. Come visit the Water Corporation stall to learn about our plans for Alkimos or for some great waterwise information and tips.

    You can also call us anytime by contacting Community Engagement Senior Advisor Tarryn Truscott via email to community.engagement@watercorporation.com.au or phoning 9420 3488.
  • Project Update - June 2018

    over 1 year ago

    Possible future Alkimos Seawater Desalination Plant Project Update June 2018

    Public comment opens: offshore investigations

    We are planning on completing a seismic survey and core sample drilling to help us understand the offshore geology and where and how the intake and outfall pipelines for the potential plant may be located and installed. During this work, which will involve vessels with specialised equipment and a jack up barge, marine exclusion zones will be in place to ensure the safety of workers and the community.

    We have submitted for the environmental approvals necessary for this work....

    Possible future Alkimos Seawater Desalination Plant Project Update June 2018

    Public comment opens: offshore investigations

    We are planning on completing a seismic survey and core sample drilling to help us understand the offshore geology and where and how the intake and outfall pipelines for the potential plant may be located and installed. During this work, which will involve vessels with specialised equipment and a jack up barge, marine exclusion zones will be in place to ensure the safety of workers and the community.

    We have submitted for the environmental approvals necessary for this work. As part of this approval a public comment period is open until 5 July, 2018. To find out more about this work you can read an information sheet here. To read our approvals documentation or to submit a public comment visit http://epbcnotices.environment.gov.au/invitations/ (Reference: 2018/8224)

    Meet the Team: Community conversations at the Sprout Hub

    Members of the investigations team will be at the Sprout Hub café (at Bristlebird Park Providence Drive & Sanderling Street, Alkimos) for informal conversations and a chance to learn more about the feasibility studies.

    Our next sessions will be Thursday, June 28 from 9.30am to 11.30am and Tuesday, July 10 from 1.30pm to 3.30pm You can also call us anytime by contacting Community Engagement Senior Advisor Tarryn Truscott via email to community.engagement@watercorporation.com.au or phoning 9420 3488.

    In the News

    The investigations recently featured in this news article: Public feedback sought on potential Alkimos desalination plant (Source: North Coast Times, 25/5/2018).

    You can also read about how Perth’s desalination plants have contributed to our water supply at http://www.abc.net.au/news/2018-06-21/how-perth-dodged-its-own-water-crisis-like-day-zero-in-cape-town/9891472 (Source: ABC)

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