Fiji has embarked on its most comprehensive groundwater survey to date, aiming to strengthen water security and resilience on its largest island, Viti Levu.
The Ministry of Lands and Mineral Resources, in partnership with the Australian Government through Geoscience Australia, launched a national initiative that will use advanced airborne electromagnetic (AEM) technology to map underground water reserves. The Pacific Community (SPC) is also providing technical support.
Officials said the programme is Fiji’s biggest investment so far in the scientific assessment of its water resources. It comes as the country faces mounting pressure on freshwater supplies, with nearly half of treated water lost through ageing infrastructure and many rural communities relying on shallow, unreliable wells.
Minister for Lands and Mineral Resources Filimoni Vosarogo described the initiative as a breakthrough in safeguarding Fiji’s water future.
“This comprehensive assessment will provide the scientific foundation needed to secure water resources for all Fijians, particularly as we face the growing impacts of climate change,” he said.
He added: “This partnership is a major breakthrough in our efforts to provide reliable groundwater data across Fiji. It means our rural and maritime communities, many of whom rely solely on groundwater, will benefit from science-based planning to ensure safe and sustainable water access.”
The survey employs helicopter-mounted sensors to detect water resources at depths greater than 300 metres. Officials stressed the technology is non-invasive, requires no ground disturbance and is safe for people, livestock and the environment.
Dr Paula Vivili, SPC Deputy Director General for Science and Capability, said the initiative reflects the growing importance of data-driven water management in the Pacific.
“We are proud to support Fiji’s groundwater mapping initiative, which represents exactly the kind of science-based approach needed to address water security challenges across our region,” he said. “Our decades of experience with electromagnetic surveys and groundwater assessment in Pacific Island countries have shown these technologies can provide crucial data for communities facing increasing climate pressures.”
Survey results will provide government agencies, development partners and communities with detailed three-dimensional maps of groundwater distribution, quality and yield potential. These findings will guide long-term water infrastructure investment, drought preparedness and local water management.
Officials said preliminary results are expected within months and will immediately inform water security planning. Communities will be engaged throughout the process to ensure findings translate into practical, locally led solutions.
