Turnarounds, long-running models, a crisis averted and three warning cases, from Phnom Penh to the Murray–Darling. Each case gives the headline numbers, what actually changed, the governance lesson and the questions to bring to your own board. Filter by the theme you care about.
Showing 12 of 12 cases
Phnom Penh, Cambodia
Public utility turnaround · 1993–2000s
What changed
The Phnom Penh Water Supply Authority gained operational autonomy, with clear accountability for results.
Every connection was metered, and illegal connections and bill manipulation were tackled head-on, with internal sanctions and public reporting.
Tariffs moved step by step towards cost recovery, with connection support for poor households.
Governance lesson
The biggest early gains came from integrity and management, not new pipes. High NRW was a symptom of weak accountability. The utility won the Stockholm Industry Water Award in 2010.
Limiting wasteIntegrityCost recovery
Manila East Zone, Philippines
Concession contract · 1997–2008
What changed
The east-zone concessionaire combined district metering and pipe replacement with social programmes against water theft.
Output-based aid subsidised connections for poor households, turning informal users into paying customers.
Performance targets were written into the concession and reviewed by a regulatory office.
Governance lesson
A contract is only as good as its targets and their enforcement. Results differed sharply between Manila's two concession zones under similar rules, so management and regulation mattered more than ownership alone.
Limiting wasteAccess for the poorContracts
Singapore
National water agency (PUB) · ongoing
What changed
One agency manages the whole water cycle — sources, treatment, distribution, used water and drainage — so there are no gaps between bodies.
Full metering, active leak detection and steady renewal keep the loss rate among the world's lowest.
Water is priced to reflect scarcity, with targeted support for lower-income households rather than general underpricing.
Governance lesson
Low losses are not a one-off project. They come from sustained data, renewal funding and one clear owner over decades.
Limiting wasteClear rolesLong-term finance
Cape Town, South Africa
"Day Zero" drought · 2015–2018
What changed
The city published a dated "Day Zero" forecast and updated it publicly, which made the risk concrete.
It combined steep restrictions and drought tariffs with network pressure management and help for households to fix leaks.
Agriculture and urban users both cut allocations, and the date was pushed back repeatedly, then called off.
Governance lesson
Transparent, frequent public data can change behaviour fast. But the crisis also showed the cost of slow co-ordination between national, provincial and city governments, and it hit low-income households unevenly.
ScarcityPublic engagementAllocation
Paris, France
Return to public operation · 2010
What changed
When private contracts expired in 2010, the city merged production and distribution into one public operator, Eau de Paris.
It reported about €35 million in savings in the first year and cut the water tariff by 8%.
Users and civic groups gained seats on the operator's board, and a citizen water observatory opened accounts and choices to scrutiny.
Governance lesson
The key was not "public vs private" but contract expiry as a decision point, used to restore cost transparency and civic oversight. Boards should prepare years before a contract ends.
BudgetsTransparencyCivic oversight
Flint, Michigan, USA
Warning case · 2014–2015
What happened
Under a state-appointed emergency manager, the city switched its supply to the Flint River in April 2014 to save money.
No corrosion control was added for about 18 months. The water dissolved protective scale in old pipes and released lead.
Warnings were missed: a car plant stopped using the water in October 2014 because it corroded parts. The council's March 2015 vote to switch back was non-binding.
A Legionnaires' disease outbreak that killed 12 people has been linked to the switch. Officials were later criminally charged.
Governance lesson
When local accountability is suspended and cost dominates decisions, early warnings go unheard. Technical safeguards failed because no one with a public mandate could insist on them.
Warning caseOversightWater quality
Jackson, Mississippi, USA
Warning case · system failure, 2022
150,000+residents without safe water, Aug 2022$89.8 msettlement over a failed meter & billing contractNov 2022federal interim manager appointed
What happened
Years of deferred maintenance left the city's treatment plants and pipes fragile, while the city's revenue base shrank.
A 2013 contract of about $90 million with Siemens to replace meters and the billing system went badly wrong: faulty meters and billing errors cut revenue. The city sued and settled for $89.8 million in 2020.
In August 2022, flooding disrupted the O.B. Curtis treatment plant. Pressure collapsed citywide and more than 150,000 residents lost safe drinking water.
In November 2022, at the request of the US Justice Department, a federal court placed the water system and its billing under an interim third-party manager.
Governance lesson
Billing and metering are infrastructure too. When revenue collection fails, maintenance is the first thing cut, and the damage compounds for years. "Back-office" contracts deserve the same scrutiny as treatment plants.
Warning caseDeferred maintenanceContracts
England, United Kingdom
Warning case · privatised regional monopolies, 1989–today
3.61 m hoursof storm-overflow spills in 202488recommendations from the 2025 water commissionOfwatto be replaced by a single regulator
What happened
Water and sewerage services in England and Wales were privatised in 1989 as regional monopolies, overseen by separate economic, environmental and drinking-water regulators.
Once almost every storm overflow was monitored, the scale became public: 450,398 spills lasting 3.61 million hours in 2024. Anger grew over spills, company debt and dividends, and the largest company, Thames Water, fell into financial crisis.
The Independent Water Commission, chaired by Sir Jon Cunliffe, made 88 recommendations in July 2025. The government announced that Ofwat would be abolished, and its January 2026 White Paper set out a single new regulator.
Governance lesson
Fragmented oversight and opaque finances let underinvestment build up unnoticed. Public monitoring data changed the debate, and structural reform followed. Whether services are public or private, someone must see investment, debt and performance together.
Warning caseRegulationWastewater
The Netherlands' water boards
Elected regional water authorities · since the 13th century
1289Delfland water board founded21regional water boards todayEvery 4 yearsdirect elections
What changed
Water boards (waterschappen) manage flood defences, water levels, surface-water quality and wastewater treatment in their regions. Drinking water is supplied separately by publicly owned companies.
Residents elect each board's general assembly every four years, on the same day as provincial elections. Some seats are reserved for farmers, owners of nature areas and businesses.
The boards levy their own taxes, so money raised for water tasks stays with water tasks.
Governance lesson
A dedicated body with its own mandate, revenue and elected oversight keeps long-term water tasks off the general budget, where they would compete with short-term priorities. The weak spot is visibility: many voters know little about the boards they elect.
2,750 GL/yrwater to recover for the environment (2012 plan)2017TV investigation into alleged water theft2018independent NSW water regulator starts
What changed
The Water Act 2007 created a basin-wide authority. The 2012 Basin Plan set sustainable limits on how much can be taken and a baseline target to return 2,750 gigalitres a year to rivers and wetlands, through buybacks and irrigation efficiency projects.
Water entitlements are tradable separately from land, so water can move to higher-value uses.
In July 2017, ABC's Four Corners ("Pumped") alleged water theft and weak compliance in the Barwon–Darling. A review followed, and New South Wales set up the independent Natural Resources Access Regulator, operating from 30 April 2018.
Governance lesson
Caps and markets only work if extraction is measured and rules are enforced by someone independent. A basin-wide limit loses legitimacy quickly if users believe others are taking more than their share.
Basin scaleComplianceEnvironmental flows
NWSC, Uganda
Public utility on performance contracts · 1998–2003
What changed
New management at the National Water and Sewerage Corporation launched short "100-day" programmes from 1998, each with a few measurable targets.
Headquarters signed one-year Area Performance Contracts with its town operations (2000–2003), giving local managers autonomy and incentives in return for results on collections, losses and connections.
A performance contract between the government and the corporation (2003) set targets for the utility as a whole. Losses remained a challenge: the 2003–06 plan aimed to cut non-revenue water from 39% to no more than 35%.
Governance lesson
A public utility can improve sharply without privatisation when it combines autonomy, clear targets, incentives and honest measurement, at every level from the ministry down to each town.
Performance contractsEfficiencyPublic ownership
Denmark
National leakage incentive · since 1994
What changed
Since 1994, water utilities whose losses exceed 10% pay a penalty to the state through the water tax system.
From the late 1990s, metering became mandatory for all consumers, giving utilities the data to measure losses reliably.
Utilities report losses every year. The Danish Environmental Protection Agency puts the national average at 7.8%.
Governance lesson
A simple national incentive plus universal metering made leakage a board-level cost rather than an engineering detail. A percentage threshold is crude (see why "% lost" can mislead), but its clarity helped.
Limiting wasteRegulatory incentiveMetering
Where does your system stand?
Use the same lenses on your own utility: score the 12 OECD principles, run the water balance and screen your contracts.