Project goal:

To reline old wastewater pipes, protecting the local wastewater system, homes and environment.

Status:

In construction

Delivery Date:

On-going

What's happening?

Sewer relining is an ongoing program to renew ageing wastewater pipes. The work is carried out by our authorised contractor, Interflow, to ensure our central wastewater system continues to be safe and reliable. Where possible, pipes are relined using trenchless technology.

This means we won’t need to dig anything up to replace the pipes, which will help minimise the impact on the local community. Check out the tab ‘How does it work’ for more information.

Where is this happening?

The work areas are listed below with their relevant commencement date:

  • Shire of Northam (Northam town centre) - January 2020
  • City of Gosnells (Maddington) – mid-April 2020
  • City of Bayswater (Bayswater, Maylands) – mid-April 2020
  • City of Fremantle (Beaconsfield, Fremantle, White Gum Valley) – mid-April 2020
  • City of Kwinana (Orelia) – mid-April 2020
  • City of Melville (Bicton, Mount Pleasant, Palmyra) – mid-April 2020
  • City of Nedlands (Nedlands, Dalkeith) – mid-April 2020
  • City of South Perth (Kensington, South Perth) – mid-April 2020
  • City of Stirling (Menora, Mount Lawley) – mid-April 2020
  • City of Subiaco (Daglish, Subiaco) – mid-April 2020
  • City of Swan (Guildford, Midvale, Woodbridge) – mid-April 2020
  • City of Vincent (Leederville, Mount Hawthorn) – mid-April 2020
  • Town of Claremont - mid-April 2020
  • Town of Cottesloe - mid-April 2020
  • Town of East Fremantle - mid-April 2020
  • Town of Mosman Park - mid-April 2020
  • Town of Victoria Park (Burswood, East Victoria Park, Victoria Park) - mid-April 2020


Why is this work taking place?

Relining old wastewater pipes is important to protect the local wastewater systems and the health of the community and environment and will extend the life of this important infrastructure by at least 50 years.

When is this happening?

Sewer relining is an ongoing project which started over 10 years ago to renew ageing wastewater pipes across the State. 

How will this impact the community?

Work activities

Nearby residents may notice more activity in the area, noise from generators and vehicles and temporary odour. Work will be approved in advance by your local government authority.

Where required, traffic management will be in place to direct people safely around the work area. Generally, we will be in one area for no more than 6 days at a time as we progress work along the wastewater route.

Access to property

Interflow will be working in both verges and/or roads, and may work in the boundary of private properties. If Interflow requires access to your property, we will contact you directly to discuss the work and arrange entry. Interflow will only require access to your back or front yard and will not need to enter your home.

During the work

If you experience any odour in your bathroom, flush your toilet and pour water down the floor drain. Where possible, please close all toilet covers during this period.

If wastewater does overflow out of your toilet, notify Steve Faulkner from Interflow on 0438 272 610 immediately. Interflow will assess the issue, work with you to organise a clean up and notify the Department of Health.

Who can I contact?

Refer to the relevant current work area link for your project team contact. The work areas which aren’t linked fall under the Perth Retic Package. For any issues associated with these locations please contact Fintan Bannon, Interflow Project Manager on 0459 117 561.

Take our survey

Have we recently relined wastewater pipes in your area?

We appreciate your feedback and would like you to help us by completing a short, 2 minute Sewer Relining survey.

Just by letting us know your thoughts, you will automatically go into a draw to win a $50 gift card.

Sewer relining step 1

Pipes are checked via CCTV

To determine exactly what we need to do to fix them.


Sewer relining step 2Pipes are cleaned

High pressure water is jetted through the pipes. It may cause some gurgling or splashing from your toilet. We therefore advise to keep the toilet lid down. If water does spurt out of the toilet, please contact the Interflow Manager immediately.


Sewer relining step 3Pipes are relined

A plastic strip is wound into the old pipe by a machine to form a new pipe.


Sewer relining step 4New pipe is connected

Lateral lines are reconnected to the new pipe and junctions are sealed to protect the new pipe. This opens the connection to provide access to the system.

 

Sewer relining step 5

Pipes are checked

This ensures that the job has been done properly. If we find any issues we'll come back and fix it. We may need to return to the area to repeat the above steps.


Boundary trap investigations and installations
Sewer relining step 6

Boundary traps are found a the point of connection to the central wastewater system and stop gases from entering private sewers. We may need to enter the boundaries of your property to complete this work. Installation involves small-scale excavation and we will reinstate any private property we disturb during this process.

Footage of a damaged pipe being relined at Beenyup Wastewater Treatment Plant.

Contact us

24 hour Faults, Emergencies and Security Line

Phone icon 13 13 75