SA Water placed its 2024-28 capital programme with three framework agreements valued at A$600 million each in September 2024, and two years on those partners and a separate pipeline group still hold much of the construction work a new supplier would want.
Who holds what
Fulton Hogan Utilities, a John Holland and Guidera O'Connor joint venture, and a McConnell Dowell and Diona joint venture signed the frameworks to deliver a programme approved at A$3.3 billion. Their scope includes network capacity upgrades, Bolivar wastewater treatment plant upgrades and section replacement on the Morgan to Whyalla Pipeline. In November 2024 BMD, Diona and Leed Engineering and Construction were appointed to undertake up to A$700 million of trunk water and sewer pipelines for new housing over four years.
Where the money is going
Capital investment reached A$799.9 million in 2024-25, up from A$702.3 million in 2023-24. The largest single element of the programme is A$1,165.0 million of metropolitan housing growth infrastructure directed by the state government, with 30 km of trunk water mains, 54 km of trunk wastewater mains and 9 pumping stations planned.
The routes still open
Outside the frameworks, SA Water tenders regional treatment plants directly through its Supplier Portal: the Coober Pedy reverse osmosis plant and the Koonibba wastewater plant both closed on 5 May 2026. Maintenance is another fixed date to watch. Service Stream's Adelaide maintenance contract, which handled 117,848 work orders in 2024-25, runs to 1 July 2028.
Which categories to prioritise, how SA Water's regulator and planned Gas and Water Trust could change buying after June 2028, and the full register of open, emerging and strategic projects are set out in the full report and not in this article. The full report, SA Water: Utility Account Brief, is available for USD 499. For a free overview, read the SA Water Utility Snapshot.