Malaysia's Water Loss Dilema: When It Doesn’t Pay to Fix the Problem
Every day in Malaysia, more than one in three litres of treated water simply disappears.
It leaks through cracked pipes, bleeds out through faulty joints, or just simply being metered inaccurately, or worse, through stolen connections. Our clean, treated water that never reaches the single customer or generate any
revenue, but costs money to treat and send out to where-ever it may end up.
That's what a 34.3% non-revenue water (NRW) rate looks like in practice. And Malaysia has been living with it for decades. It means we out of every 2 litres of water that we consume, 1 unit is lost
The Numbers That Should Make Us Uncomfortable
The international best-practice range for NRW sits at 15–20%, depending on the price and scarcity of water. Malaysia’s NRW rate is double that. Suruhanjaya Perkhidmatan Air Negara (SPAN), the national water regulator, set a target of 31% NRW for Peninsular Malaysia and Labuan by 2025. The actual 2024 figure? 34.3%. With a total water consumption of 10,600 million litres per day (MLD), 5,500MLD is lost. This roughly translates to us losing 2,200 Olympic-sized swimming pool of water, every single day!
Some states are far worse. Perlis and Kelantan lose over 60% of their treated water. The total financial drain from NRW losses exceeds RM2 billion annually , and that number is projected to climb to RM4 billion by 2030 if the trajectory holds.
We are not talking about a rounding error. We are talking about a structural failure. It stems from the economics of how water is priced, managed, and funded in this country.
The Core Problem: It Doesn't Pay to Fix It
Here is the uncomfortable truth about Malaysia's NRW crisis: water operators have very little financial incentive to solve it.
The reason is arithmetic. Domestic water tariffs currently average **RM1.19 per cubic metre**. The actual cost of treating and delivering that water? **RM1.89 per cubic metre**. That's a shortfall of 70 sen on every single cubic metre delivered, before accounting for capital expenditure, debt servicing, or infrastructure upgrades.
The February 2024 tariff revision is the first major hike in decades for some states like Pahang and Perlis, raised the average by just 22 sen per cubic metre. Meaningful progress, but even after that increase, current tariffs only cover approximately 63% of treatment costs.
The result? Operators like Air Selangor reported a loss of RM610 million in 2023. The company's total costs is RM3.51 billion while revenue is only RM2.82 billion. This is not an operational efficiency issue. This is the unavoidable consequence of charging less than it costs to deliver the service.
When an operator is already losing money just to keep the taps running, where does the capital for pipe replacement come from? Where does the budget for smart leak detection, pressure management zones, or advanced metering infrastructure come from?
Not without grants and additional dependence on public funds.
This is why NRW reduction is economically irrational for operators without external support. Every ringgit spent on leak detection is a ringgit that must come from somewhere that doesn't exist in the current economic model.
A Broken System Running on Life Support
The Malaysian water sector's economic model is, in essence, a subsidy model.
The government subsidises water heavily to protect affordability - a well-intentioned policy, no doubt. But the cascading effect is that water operators cannot generate enough revenue to fund their own operations, let alone long-term capital investment. They become dependent on state and federal support just to stay operational, leaving minimal capital to expand capacity or for NRW reduction. As a result, the infrastructure deteriorates, pipes age, leakage worsens and therefore, the subsidy demand grows. A vicious cycle indeed.
In addition, water resource is a state matter under Malaysia's Federal Constitution, while the regulation of the water services is under the Federal Government. This means that while SPAN sets the policy, regulates the industry and sets the water tariff, individual state governments control tariff implementation. This fragmentation has led to inconsistent outcomes. Johor's domestic tariff stands at RM1.88 per cubic metre. Before the 2024 revision, Pahang was charging RM0.67 per cubic meter.
Low tariffs do not just hurt operators financially. They send a far more dangerous message: that water is cheap, abundant, and even infinite. What do we do with “cheap” things? We waste them.
Malaysia draws 81.2% of its raw water from rivers, sources exposed to pollution, climate disruption, and growing industrial demand. 30% of river monitoring stations already report at least “slightly polluted” water quality. Prolonged droughts are becoming more frequent, not less. And yet, artificially cheap water has quietly taught and entire population to treat it as a worthless resource. Malaysia’s per capita consumption stands at 250 litres per person per day, well above the WHO’s recommended 165 litres. We are consuming more than we should, precisely because the price tells us we can afford to.
This is the hidden cost of suppressed tariffs. Every sen withheld from the true price of water is a vote for the fiction that the well will never run dry. Reform the price, and you reform the behaviour. Leave the price where it is, and we find that endless conservation campaigns, public awareness drives, and government targets will never move the needle on consumption levels.
What a Sustainable Framework Actually Looks Like
The solution is not simply "raise tariffs and hope for the best." It requires a restructured framework that aligns operator incentives, protects vulnerable consumers, and creates a credible funding path for infrastructure.
SPAN's Tariff Setting Mechanism (TSM) generally points in the right direction. The tiered structure covering OPEX for low-volume users, OPEX plus CAPEX for mid-tier usage, and full cost recovery for high consumption, is the right architecture. It implicitly acknowledges that water has limits: use less, pay less; use more, pay the true cost. While the TSM has its shortcomings, it is only in the CAPEX recovery portion of the equation - which most operators are struggling to reach.
The key problem is in its inconsistent adoption and political unwillingness to implement it. This has cost operators an estimated RM1.2 billion annually in delayed implementation.
A sustainable framework should include three interlocking elements:
1. Time-bound pathway to cost recovery. The gap between RM1.19 and RM1.89 cannot close overnight, but it needs a credible, time-bound glide path, not another decade of deferrals. Each revision cycle under TSM should close a meaningful portion of the gap, with full cost recovery as a defined endpoint, not a perpetual aspiration.
2. Alternative approaches to NRW reduction. Air Selangor's model, outsourcing NRW reduction through performance-based contracts where private contractors share in the savings, is exactly the kind of innovation that separates obligation from incentive. When operators cannot fund NRW work internally, performance contracts let private sector expertise and capital do the heavy lifting. Water Sector Transformation 2040 (WST2040) identifies this as a proposed implementation model. Other models can also be explored, instead of just waiting for there to be sufficient funds.
3. Transparent, targeted consumer protection. The reason tariff reform stalls is not economics, it is politics. Politician’s considerations, particularly for lower-income households, is legitimate. However, the answer is in providing targeted subsidies for the B40, not suppressed tariffs for everyone. Selangor state government is already absorbing cost increases for low-income households and places of worship. This is the model: protect the vulnerable, price the rest honestly.
The Reflection Point
Malaysia's water problem is, at its core, is a political cowardice problem disguised as an infrastructure problem. Yes, pipes need replacing. Yes, smart metering and digital leak detection are critical. But none of these investments will happen at scale, and none will be sustained, if the economic model continues to make them economically irrational.
The WST2040 roadmap also hints at what is coming next: with data centres projected to demand 614 MLD in Johor alone by 2035, representing nearly a third of the state's entire 2024 water demand, the pressure on an already strained system is about to intensify significantly.
The good news? The architecture for reform already exists. TSM is in place. Performance contracts are being tested. The 2024 tariff revision, however insufficient, broke a decades-long political taboo.
The question is whether Malaysia's decision-makers, at state and federal levels, have the resolve and courage to stop treating water as a perpetual subsidy and start treating it as the finite, valuable, investable resource it is.
Every day the answer is delayed, another third of the water we treat disappears.
Why Voluntary Action Fails
Infrastructure developers compete on thin margins, tight timelines, and managed risks. They respond to incentive structures created by regulation and procurement rules. When environmental safeguards are voluntary, projects minimising harm
appear more expensive or slower—unless rules level the playing field.
In systems where impacts are not quantified:
- Firms factoring in environmental costs lose bids to competitors
- Environmental damage becomes a competitive advantage
- Best practice remains the exception, not the norm