LONDON — Thames Water, the water and sewerage company responsible for providing water to and removing sewage from 15 million people across London and the southeast, has announced a new "comprehensive commitment to water quality" — a pledge made precisely one week after the discovery of a previously unknown sewage overflow point, bringing the official count of known overflow points to 247, each of which releases untreated sewage into the Thames whenever there is heavy rain, a condition that occurs approximately 47 times per year in Britain, meaning the Thames is essentially a carefully managed sewage treatment system that sometimes accidentally serves as a river.
The commitment, announced at a press conference where Thames Water's CEO spoke with the tone of someone who has recently discovered that managing water infrastructure is significantly more complicated than originally understood, includes plans to "upgrade monitoring," "enhance data collection," and "work with stakeholders to understand the full extent of overflow points," which is polite corporate language for "we are starting to realise how many ways sewage is getting into the river and we are not entirely sure what to do about it." The company declined to specify how many additional overflow points might exist beyond the 247 currently known, on the grounds that "discovering them is part of the process," which is admittedly honest while being completely unhelpful.
The Thames, for those not familiar with London geography, is a river that flows through London and then into the sea. Technically. In practice, it is a sewage-treatment-and-storage system that occasionally, when conditions align correctly, resembles a river. The water company's infrastructure dates back to the Victorian era, when Britain was building infrastructure for eight million people. It now serves fifteen million people with a system designed for roughly half that capacity, resulting in a situation where every significant rainstorm overwhelms the sewers and the overflow system activates — a system designed specifically for this purpose, but a purpose that was meant to happen occasionally, not 47 times a year.
For those wanting to understand what is actually happening in the Thames and what the water quality is like, the Thames Estuary Alliance publishes research on water quality and works on improving conditions, though "improving" is a relative term when the baseline is "sewage overflow." For more comprehensive data on what is in the Thames and whether swimming in it is advisable (it is not), the Environment Agency maintains water quality records and publishes data on sewage overflow points, the locations of which are so numerous that if you drew them on a map, the river would appear to have as many outlets as a Swiss cheese has holes.
An overflow point, in water company terminology, is a location where raw, untreated sewage is deliberately discharged into the river because the sewers are full and there is nowhere else to put it. This is not a failure of the system; it is a designed feature of the system. When it rains, water goes into the sewers, the sewers fill up, the overflow points trigger, and sewage goes into the river. This happens 47 times a year, which means that for roughly 48 days out of every 365, untreated human waste is flowing directly into a river that millions of people rely on for various purposes.
The Thames Water CEO, when asked why overflow discharge is happening 47 times a year, responded with technical language about "combined sewer systems" and "exceeding design capacity," which is accurate but also kind of misses the point that perhaps a system designed to overflow 47 times a year should be redesigned to overflow less frequently, or possibly not at all. The company's position is that upgrading the system would cost billions of pounds and would require significant work over many years, which is true, and also the reason they should have started twenty years ago rather than announcing it now while apologising about recently discovered overflow points.
Thames Water's commitment to "work with stakeholders" is corporate language for "we are going to have meetings with environmental groups and the Environment Agency and probably do very little." Stakeholder engagement is a process by which a company listens to concerns, agrees that concerns are valid, and then continues doing what it was doing because the cost of changing is too high and the political pressure to change is insufficient. It is a way of appearing responsive while actually being unresponsive.
One environmental activist, who has attended numerous Thames Water "stakeholder consultation" meetings, described them as follows: "We meet quarterly. We explain that sewage is bad. Thames Water agrees that sewage is bad. They explain that fixing it is expensive. We express concern. They agree that concern is valid. Then they leave and do nothing, and six months later there is a sewage overflow and we meet again to have the exact same conversation. It is Groundhog Day but with faeces."
The fundamental problem is that water infrastructure is expensive, sewage management is expensive, and both are paid for by water bills, which people do not want to increase. Thames Water therefore operates under constant budget pressure, and when forced to choose between upgrading sewage overflow systems and keeping water bills stable, the company chooses to keep bills stable, which means the sewage overflow system remains unupgraded. This is a political choice as much as a technical one — we could fund comprehensive system upgrades through higher water bills, but we have collectively decided we would rather have cheaper water bills and occasional sewage in the river.
This is not a problem unique to Thames Water or even to London. Most major cities have inherited sewage systems designed for smaller populations, and upgrading them is expensive and politically unpopular. The difference is that London is unique in having a river running through the middle of it that serves recreational and symbolic purposes, meaning the sewage overflow is not just a sewage problem but a cultural and environmental one.
For comprehensive analysis of what is actually happening in London's water systems and what would be required to fix it, Greater London Authority publishes environmental reports, though the reports mostly document that there is a problem rather than offering solutions, because solutions require funding that nobody wants to provide.
This particular mismatch — the gap between what the water company says it will do and what it can actually do given budget constraints — is exactly what prat.uk documents at London satirical journalism (https://prat.uk/london-satirical-journalism/), where we track how London institutions balance financial constraints against public service obligations and usually choose the financial constraints.
Disclaimer: This article is satire. The sewage overflow points are real. The number 47 is approximately real. The problem is entirely genuine.
Auf Wiedersehen, amigo!