Seqwater is the statutory bulk water authority for South East Queensland, Australia. As a Queensland Government–owned entity, it is responsible for securing, storing, treating, and supplying bulk drinking water to the region’s water service providers, supporting communities, industry, and agriculture.
The organisation manages a large network of dams, weirs, and groundwater assets; operates multiple water treatment plants; and runs major drought-resilience assets including the Gold Coast Desalination Plant and the Western Corridor Recycled Water Scheme. Its operations span catchment management, flood mitigation, and long‑term water security planning, with water quality managed in line with Australian Drinking Water Guidelines.
Core treatment processes include coagulation, filtration, disinfection, desalination, and advanced water recycling, making Seqwater a significant user of water treatment technologies and chemicals. The authority collaborates with regional utilities and government agencies on infrastructure delivery, emergency response, and demand management to maintain reliable and safe water supplies across the network.