Sabah is embarking on an ambitious programme to tackle one of its most persistent infrastructure challenges: the staggering loss of water through leakage and illegal connections. The state's non-revenue water rate currently stands at 59.6 per cent, a figure that reflects both the technical difficulties of maintaining aging water systems across diverse terrain and the challenges of governance in a large maritime state. By 2030, the Sabah Water Department aims to cut this nearly in half, bringing the NRW rate down to 45 per cent—a target that, while still higher than leading utilities worldwide, represents a dramatic improvement in efficiency.
This initiative addresses a critical issue that extends far beyond Sabah's borders. Non-revenue water represents the difference between the amount of water treated and supplied by utilities and the amount that is actually billed to customers. In Sabah's case, the gap is enormous. For every litre of water entering the distribution system, more than half disappears before generating revenue. This represents not only a financial drain on the state's water utility but also a waste of a precious natural resource in an era of increasing climate uncertainty across Southeast Asia.
Assistant Minister of Works and Utilities Datuk Limus Jury outlined the multi-pronged strategy being deployed to achieve this reduction. The approach is not limited to a single intervention but rather comprises a comprehensive suite of measures designed to address both the technical infrastructure and the institutional practices that contribute to water loss. The Sabah Water Department has identified several key problem areas and is implementing targeted solutions for each.
One of the most significant components involves modernising the physical infrastructure that forms the backbone of water distribution. The replacement of critical pipelines throughout the state is underway, addressing systems that have degraded over time and now leak substantially. Equally important is the systematic replacement of faulty consumer meters and those exceeding seven years in age, which lose accuracy over time and contribute to measurement errors that mask genuine losses. These meter replacements are not merely administrative but form an essential component of the utility's ability to identify where water is being lost within the system.
Beyond hardware upgrades, the department is implementing active leakage control and proactive detection mechanisms. Water pressure management across distribution networks is a technique long employed by utilities worldwide to reduce the stress on ageing pipes and consequently minimise leakage. The state is also deploying sophisticated leak detection technologies and conducting regular surveillance to identify problem zones quickly, allowing for rapid repairs before losses accumulate. These interventions work synergistically, creating an ecosystem of continuous improvement.
The fight against illegal water connections represents another crucial battlefront. Integrated operations initiatives are targeting the deliberate piracy of water supply that further erodes revenue. In a state where enforcement can be challenging given geographic spread and infrastructure limitations, coordination between departments and technological aids become essential tools. The department's focus on curtailing such connections demonstrates recognition that technical solutions alone cannot succeed without addressing human behaviour and institutional capacity.
The overarching framework for these efforts is provided by the 13th Malaysia Plan, which has allocated resources specifically for water loss reduction across Malaysia. Sabah's implementation strategy leverages both federal and state funding to create geographic coverage. Federal government support targets an ambitious 18 districts, while state resources will extend the programme to an additional 12 districts, ensuring that improvements span across Sabah's diverse landscape from urban centres to rural areas.
Three major districts have been designated as priority zones for intensive intervention. The Kota Kinabalu project, which commenced in September 2022, represents the proof-of-concept phase of this strategy. Expected completion by September 2024 would demonstrate whether the integrated approach can deliver the anticipated 10 million litres daily reduction in losses, a significant volume that would provide tangible evidence of programme effectiveness. Success in the state capital would build momentum for scaling efforts elsewhere.
The initiatives in Tawau and Lahad Datu, launched in February 2024, are structured as longer-term commitments extending to February 2027. These projects target reductions of 14 million litres and 10 million litres daily respectively, demonstrating that the most water-intensive losses are concentrated in specific geographic areas. This targeted approach reflects data-driven decision-making and the recognition that resources must be concentrated where returns will be greatest.
For Malaysian policymakers and regional water utilities, Sabah's programme offers important lessons about the reality of water loss management. The gap between current performance at 59.6 per cent NRW and even the ambitious 45 per cent target by 2030 reveals how deeply entrenched these challenges are across developing infrastructure systems. Even with comprehensive intervention, bringing NRW below 45 per cent will require sustained commitment and likely additional technological investment in subsequent decades.
The broader context matters for understanding why this initiative deserves attention. Southeast Asia faces mounting water stress as populations grow and climate patterns become less predictable. Reducing losses in water distribution systems is fundamentally more efficient than developing entirely new sources. Every litre preserved through leak reduction and meter accuracy is a litre that remains available for household consumption, agricultural use, and industrial activity.
Sabah's commitment to quantifiable targets by specific deadlines creates accountability mechanisms that can drive implementation. By designating pilot districts and setting measurable loss reduction targets measured in millions of litres daily, the state has created benchmarks against which progress can be objectively assessed. Whether these targets are achieved will demonstrate whether integrated approaches combining infrastructure investment, technology deployment, and operational reform can succeed in a developing state context, offering insights valuable to water utilities throughout Malaysia and the broader region.
