Millstream Aquifer - Sustainable Yield Assessment

Invitation to Bid

Millstream Aquifer – Sustainable Yield Assessment

Bid Invitation Number – 7000014998

Opening Date:   Tuesday 16 December 2025

Closing Date:      2:30 pm WST Thursday 29 January 2025

Water Corporation is inviting organisations with suitable experience, capability and capacity to submit a bid to provide an independent resource assessment of the Millstream Aquifer to inform future sustainable yield and borefield management, to uphold environmental and heritage values.

The bid documents may be accessed from 16/12/2025 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 online supplier registration form available at Water Corporation website, under More/Suppliers Contractors, Became a supplier. 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 contract award. This application can be lodged via our website.

Enquiries should be directed to:

Bianca Stewart

T: (08) 9420 2372 or

E: bianca.stewart@watercorporation.com.au