How water and waste services work, and who pays for them
The water cycle from source to sewer, the waste chain from bin to landfill, how each is run in different regions, and the measures the industry watches.
Industry brief, with a one-minute summary: Water, waste and utilitiesKey takeaways
- Water is heavy, cheap per litre and must reach every home through one set of pipes, so a water network is a local monopoly that is regulated or run by the state.
- England and Wales: private regional water companies, each a monopoly in its area, with prices set every five years by the regulator Ofwat.
- Continental Europe: water is mostly owned by cities, which often hire private operators such as Veolia or Suez under long contracts.
- Gulf: water is scarce, so states rely on desalination. About 76 percent of the Gulf's municipal drinking water was desalinated in 2023, from roughly 400 plants.
Key idea
Water is heavy, cheap per litre and must reach every home through one set of pipes, so a water network is a local monopoly that is regulated or run by the state. Waste is collected street by street on fixed routes, then sorted, recycled, burned for energy or buried. In both, most money goes into long-lived assets (pipes, plants, trucks, landfills), and the price is set or tendered by a public body rather than by open competition.
- Water value chain
- SourcesRivers, reservoirs, groundwater, the sea (desalination), recycled wastewater
- TreatmentFilter and disinfect to drinking standard; desalination removes salt
- DistributionPumps, storage tanks and pipes to homes and businesses; leaks happen here
- Customers and billingMeters, tariffs, collection of payment
- WastewaterSewers carry used water to treatment works, then it is released or reused
The same network brings clean water in and takes dirty water away. Pipes and plants last 30 to 100 years, so today's bills pay for assets built long ago and for new ones.
Waste follows a different chain. Collection trucks pick up household and business waste on fixed routes. It then goes to a transfer station, a sorting plant (a materials recovery facility, which separates paper, plastic, metal and glass), a composting plant, a waste to energy plant that burns it to make electricity, or a landfill. Governments follow the waste hierarchy: prevent waste first, then reuse, recycle, recover energy, and bury only what is left.
| Part | How it makes money | Main costs | What decides profit |
|---|---|---|---|
| Regulated water and wastewater company | Tariffs set by a regulator to cover costs plus an allowed return on its asset base | Capital spending on pipes and plants, energy, chemicals, staff, financing | Allowed return, beating cost allowances, fines and rewards for performance |
| Desalination plant (independent water plant) | Paid per cubic metre by a state buyer under a contract of 20 to 30 years | Upfront plant cost and financing, then energy (the largest running cost) | Winning the tender at a price that covers capital, energy and risk |
| Waste collection | Contracts with cities (per household or per tonne) and fees from businesses (per bin lift) | Trucks, fuel, crews | Route density: homes served per hour of truck time |
| Recycling and sorting | Gate fees for accepting waste, plus sales of sorted materials | Plant, labour, energy | Prices of recycled paper, plastic and metal, and purity of the input |
| Landfill and waste to energy | Gate fee per tonne; waste to energy also sells electricity or heat | Site or plant capex, landfill taxes, emissions control | Tonnes received, gate fee, taxes on landfill |
So-what
Water is a regulated asset business. Waste collection is a route logistics business, and disposal is a volume and gate fee business shaped by landfill taxes.
How it is run in different regions
- England and Wales: private regional water companies, each a monopoly in its area, with prices set every five years by the regulator Ofwat. In January 2026 the UK government announced it will replace Ofwat with a single new water regulator for England.
- Continental Europe: water is mostly owned by cities, which often hire private operators such as Veolia or Suez under long contracts. Waste is collected by cities or by contractors such as Remondis and FCC.
- Gulf: water is scarce, so states rely on desalination. About 76 percent of the Gulf's municipal drinking water was desalinated in 2023, from roughly 400 plants. New plants are tendered by state buyers such as the Saudi Water Partnership Company and EWEC in Abu Dhabi, which pay private developers per cubic metre.
- India: water is run by city bodies and state boards. The Jal Jeevan Mission has brought tap water to about 15.8 crore of 19.36 crore rural households (about 82 percent) by March 2026, up from about 17 percent in 2019. Many cities still get water only a few hours a day, and large amounts are lost from pipes.
- Southeast Asia: Singapore's national water agency PUB runs four sources (local catchment, imported water, recycled NEWater and desalination). Manila Water and Maynilad run private concessions in Metro Manila.
- United States: most water systems are owned by cities; some are investor owned, such as American Water. Waste is largely handled by private companies such as WM and Republic Services, which own many landfills.
Key measures, in plain words
- Non-revenue water (NRW): water that is produced but never paid for, because it leaks, is stolen or is not metered, as a share of water produced. A widely cited 2018 study puts the global total at about 126 billion cubic metres a year, worth about USD 39 billion.
- Tariff: the price per cubic metre (one cubic metre is 1,000 litres), often in bands, with a low price for the first units a home uses.
- Collection rate: the share of bills that customers actually pay.
- Regulated asset base: the value of the network on which a regulator lets the company earn a return. In England and Wales it is called the regulatory capital value (RCV).
- Allowed return: the yearly return on the asset base the regulator allows, set to match the cost of capital.
- Cost per cubic metre: the full cost of producing and delivering one cubic metre, including energy.
- Waste measures: tonnes collected, cost per household or per bin lift, recycling rate, landfill diversion rate, and the gate fee per tonne at a plant or landfill.
A city utility in India produces 500,000 cubic metres of water a day but bills customers for only 350,000. What is its non-revenue water, as a decimal share of production?
Why is a city's water network usually a regulated monopoly rather than a market with many suppliers?
Sources for this lesson (5)
- Recognized public explanations of case-interview concepts and frameworks
- International Water Association, The Source, "Bursting at the seams: new study highlights the realities of water loss" (global non-revenue water of 126 billion cubic metres, worth USD 39 billion a year), April 2018
- Government of India, Jal Jeevan Mission dashboard (household tap connections)
- Prime Minister of India, "Cabinet approves extension of Jal Jeevan Mission (JJM) period up to December 2028" (15.80 crore of 19.36 crore rural households connected), March 2026
- Arab Center Washington DC, "War on Iran: the dangers of attacking water desalination plants in the Gulf", 28 April 2026
My notes on this lesson
0 of 5,000 characters. Saves automatically.
Try the 2 remaining checks and drills above to complete this lesson (0 of 2 done).
Spotted something wrong or out of date? Report a mistake. We check every report and correct the page.