With the recent release of the Environment Agency’s regular report on Enforcement Undertakings that they have accepted, there has been a lot of media coverage of the topic. So we wanted to explain more about them and make our own position clear.
An Enforcement Undertaking (EU) is a legally binding voluntary agreement that may be offered to the Environment Agency when a business or organisation has breached environmental regulations.
The full detail of their approach is set out in their Enforcement and Sanctions Policy, but in general an Enforcement Undertaking is more likely to be used in the case of less serious incidents, incidents that are not recurring, where offers are made early and proactively, and where there is a high level of confidence that the offer will be complied with and polluters will take action to prevent recurrence.
Rather than pursuing a court prosecution, the Environment Agency can accept an Enforcement Undertaking where the offender agrees to take meaningful action to address the harm caused and prevent it from happening again. This can include funding environmental improvements, restoring damaged habitats, and changing working practices.
If an Enforcement Undertaking is accepted, the agreed actions must be completed in full. If they are not, the regulator may still pursue prosecution.
Enforcement Undertakings reflect the polluter pays principle — meaning the person or organisation responsible for pollution is responsible for funding the clean‑up and restoration of the damage they have caused.
By offering an Enforcement Undertaking, the offender is proactively taking responsibility for their actions, without the need for potentially lengthy and costly investigations and court proceedings. This helps secure positive environmental outcomes more quickly, while also reducing the burden on public finances.
For incidents affecting rivers and waterways, it is the Environment Agency that decides whether an Enforcement Undertaking can be accepted.
Where approved, the offender must make a donation to an organisation — such as the Aire Rivers Trust — to deliver improvements either:
Crucially, this approach ensures funding is retained locally, allowing real environmental improvements to take place in the communities and waterways affected.
The Aire Rivers Trust, as host of the Aire Catchment Partnership, is well placed to support the delivery of Enforcement Undertakings across the catchment.
We can:
Our work aligns closely with our ongoing river protection activities, helping to restore damaged environments and reduce the risk of future pollution incidents.
Below is a summary of recent and current donations we have received through enforcement undertakings:
£300,000 in 2025/26 financial year from Yorkshire Water because of an incident on Wyke Beck in the Lower Aire. We are working with partners to increase our knowledge and understanding of Wyke Beck so we can then deliver capital projects to enhance the river and nearby habitats and work with local communities.
In previous years we have received £75,000 from Barratt Homes because of an incident on Fagley Beck. This money is currently being spent as part of our broader Roots in the River project which is connecting local people to their river and undertaking habitat and access improvements.
£40,000 Persimmon and £40,000 From Timothy Taylor for incidents on the River Worth. This money was used to support our work with partners, develop a River Worth Restoration Plan, monitor fish populations, improve public access including interpretation panels and signposted trails. We obtained additional funding to support this work from the KeighleyTowns Fund and Big Local.
£105,000 from Keepmoat Homes because of an incident in Pitty Beck. This funded continual investigation into water quality in the Bradford Beck system and linked with other projects including the use of AI to identify pollution. Working with partners we have addressed some of the causes of pollution in Bradford Beck.
If you are responsible for an environmental offence or pollution incident, it is essential to act quickly:
Prompt action can reduce environmental impact and may lower the risk of prosecution, reputational damage, legal costs, fines, and impacts on insurance or future business operations.
Members of the public can report incidents directly to the Environment Agency by ringing 0800 80 70 60 or using the form below on the internet:
https://report-an-environmental-problem.service.gov.uk/water-pollution/water-feature
If you would like to learn more about Enforcement Undertakings, discuss potential projects, or explore how the Aire Rivers Trust can help deliver environmental improvements, please contact us at contact@aireriverstrust.org.uk
