Beneath a fifth of the Australian continent lies one of the largest underground freshwater reserves on Earth — the Great Artesian Basin — supporting more than 80 regional towns and industries worth over $12 billion a year across grazing, mining, tourism and agriculture. It is also a resource that took over a century of largely uncontrolled extraction to damage, and will take decades of careful management to fully repair.
Why this matters right now
Since the original Great Artesian Basin Sustainability Initiative began in 1999, joint Commonwealth and state investment has capped or decommissioned hundreds of leaking bores and replaced tens of thousands of kilometres of open bore drains with piped systems — work that has already returned well over 200 gigalitres of water a year to the basin by cutting evaporation and waste. That program continues today: in the 2025–26 financial year alone, roughly 30 bores were rehabilitated, saving close to 5,000 megalitres of water annually, under a rolling Rehabilitation Program funded jointly by federal and state governments. A new 15-year Strategic Management Plan is meant to carry this work forward, alongside ongoing scientific work — including satellite and supercomputer modelling — to better understand how much water the basin can sustainably give up each year.
The underlying tension hasn't gone away, though. The basin supports genuinely competing users — pastoral operations (the largest licensed user), irrigation, mining, geothermal energy, and entire towns that have no other reliable water source — during a period of more frequent and severe drought. Every litre allocated to one use is, in a real sense, not available to another, and the basin's recovery from historical overuse depends on collective discipline from users who each have their own strong claim to the water.
The central tensions
- Restoration progress vs remaining risk. Decades of bore capping and piping have measurably improved basin pressure and reduced waste — but the basin's aquifers recharge extremely slowly, over centuries in some cases, so "recovered" pressure doesn't mean unlimited headroom for future extraction growth.
- Equity between water users. Public consultation on basin management has consistently raised concerns about fairness and transparency between different licensed users — pastoral, agricultural, mining and urban.
- State-by-state management vs a genuinely basin-wide approach. The basin spans Queensland, New South Wales, South Australia and the Northern Territory, each managing water within its own jurisdiction, which makes truly basin-wide coordination structurally difficult even when everyone agrees on the goal.
- Drought resilience vs long-term sustainability. In dry years, the basin becomes even more critical as a fallback water source — increasing short-term pressure to extract more at precisely the moment long-term sustainability calls for restraint.
Questions to bring to the discourse
- Is the current pace of bore rehabilitation and investment enough to keep up with growing demand from agriculture, mining and expanding regional towns?
- How should water allocation between pastoral, mining, irrigation and town water users be decided fairly, given how slowly the basin recharges?
- Should basin management move toward a single, genuinely basin-wide governance body, rather than four separate state and territory approaches?
- What would it take for the basin to be managed as a strategic long-term national asset, rather than primarily as a drought-year safety net?
In one sentence
A century of largely unmanaged extraction damaged one of the world's great freshwater reserves, and Australia has spent twenty-five years and hundreds of millions of dollars learning to manage it properly — the discourse is whether that effort can keep pace with growing demand on a resource that recovers on a geological timescale.