Invitation to Bid


Bid Invitation Number – 7000013020

Opening Date: 8:00am WST Wednesday, 1 December 2021
Closing Date: 2:30pm WST Tuesday, 8 February 2022

Water Corporation is inviting organisations with suitable experience, capability and capacity to submit a bid for Mandurah Gordon Road Water Resource Recovery Facility 15.5 MLD Upgrade.

Water Corporation is committed to working with and supporting Aboriginal businesses and community and encourages bids from Aboriginal businesses.

To increase the capacity of the Gordon Road Water Resource Recovery Facility, the following works are required for design and construction:

  • Extension to existing inlet works chamber and outlet pipework
  • New bioselector and associated ancillaries to replace existing
  • New dissolved air flotation thickening tank
  • New low voltage switchroom
  • Replacement of existing oxidation ditch aerators and propulsors
  • Replacement of existing waste activated sludge pump station mechanical equipment and pipework
  • Replacement of existing return activated sludge pump stations mechanical equipment and pipework
  • Replacement of existing potable water pump station mechanical equipment
  • Mechanical upgrades to existing secondary clarifiers inlet and outlet equipment

A compulsory site visit will take place at 9.00am (WST) on Wednesday, 12 January 2022. Further information on the site visit can be obtained from the Bid Documents.

The Bid Documents may be accessed on 1 December 2021 by companies registered as Water Corporation suppliers or bidders via the Supplier Portal.

If you are not a registered Water Corporation supplier or bidder, please complete the supplier registration form. Please be aware, this may take up to five working days to process. 

It is mandatory that all bidders are granted Water Corporation Health Safety and Environment (HSE) Prequalification, at the level nominated in the bid invitation, before the bid Closing Date.

Sub-contractors can register their interest. The list of sub-contractors will be issued to the bidders for their consideration.

Enquiries should be directed to:

Janet Dahl on (08) 9420 3985 or