Programmable Logic Controllers - Upgrades and Renewals 2025/26

Summary and scope

Charlton, Hopetoun and Murtoa Water Treatment PlantsGWMWater invites tender submissions for the design, supply, installation and commissioning of Programmable Logic Controllers (PLC) hardware and software and associated upgrade works at:Charlton Water Treatment Plant.Hopetoun Water Treatment Plant.Murtoa Water Treatment Plant. This contract includes hardware and software design, installation and commissioning of GE PAC system RX3i PLCs, including:Investigation and review of the individual facilities.Updating and developing process and electrical drawings, where required.Functional testing of existing plant equipment.Upgrades to dosing and instrumentation systems identified.Development of PLC and SCADA software.Factory acceptance testing.Supply, installation and testing of new PLC hardware.Onsite migration from old to new PLC and site acceptance testing.End-to-end testing.GWMWater reserves the right to accept tenders in part.The lowest or any tender not necessarily accepted.Update as at 24/10/2025 Please note: The closing date listed below has been amended to coincide with the closing date as listed in tender documents and advertisements i.e. 25/11/2025 at 2 pm Addendum No 1 has been issued for this tender. 12/11/2025Addendum No 2 has been issued for this tender. 17/11/2025 BRIEFING: PLC - Upgrade and Renewals 2025/26. Location: Online MS Teams, Horsham, Victoria, Australia, 3400. Date/Time: 11 November 2025 11:00 am. Attendance at the briefing is mandatory for bid submission. Registration closes: 11 November 2025 10:00 am.