Wamuran Irrigation Scheme

The Wamuran Irrigation Scheme supports the region’s growth by sustainably managing wastewater from Unitywater’s Caboolture South Wastewater Treatment Plant (WWTP) delivering Class A recycled water to farms in the Wamuran region and giving producers greater certainty for crop planting and expansion of their operations. In its first stages, the Scheme will deliver about 2.6 gigalitres of recycled water each year – the equivalent of 1051 Olympic swimming pools. As the population grows and the supply of Class A recycled water increases, more will be distributed and more growers from the region will be able to access the Scheme.

Recycled water is any wastewater from homes or industrial sites that is treated to improve its quality for safe usage for other purposes, as regulated by Queensland Health and the Australian Guidelines for Water Recycling. Treated water that would usually be released to the Caboolture River will now undergo further treatment for it to be recycled and used for crop irrigation in the Wamuran region, providing further benefit to the local environment in the reduction of nutrient discharge.

Recycled water will be transferred via a 10 km pipeline to Moodlu Quarry, where it will pass through a water quality management facility. The water can be stored at Moodlu Quarry to meet seasonal crop demand. Crops in the first stage of the Scheme include raspberries, strawberries, pineapples, avocados and turf. As more water becomes available from the Caboolture South WWTP, the Scheme will expand to service more local growers. Construction has commenced and the Scheme is due to be operational in late 2024.