The Oolloo aquifer in Australia's Northern Territory is crucial for the Daly River's water flow and ecosystems. A study was done to understand its water balance for a new plan. The aquifer has two layers, with a confining layer called the Florina Formation. Springs in the Daly and Katherine Rivers are the main discharge points. The aquifer's water flow changes over decades due to rainfall. Water from the aquifer can move up or down between layers depending on the pressure.