The Environment Agency has confirmed record £8.5 million secured through Enforcement Undertakings in the 2025/26 financial year. The total represents a 47% increase on the £5.8 million achieved in 2024/25 and compares with just under £2 million in 2023/24. Payments secured via this route are directed to environmental restoration in the affected catchments rather than to the Treasury, with the stated aim of leaving sites in a better condition than before the incident.
Enforcement Undertakings are voluntary offers made by companies that have breached environmental rules. Once accepted by the Environment Agency, they become legally binding commitments to remedy harm, fund improvements and put in place measures to prevent recurrence. The regulator positions the instrument as a means of delivering faster redress than court proceedings, while retaining prosecutions and sanctions for the most serious offences.
According to the agency, the money is supporting habitat restoration, river recovery and water quality improvements that can benefit species such as water voles and salmon. In Somerset, £300,000 paid by Wessex Water following pollution of the River Gascoigne will be used by the Yeovil Rivers Community Trust to create reedbeds, wetlands and ponds at Yeovil Country Park and along Preston Brook.
Severn Trent Water accounted for the largest share of payments in 2025/26 at £4,627,424 across multiple undertakings, including a £1.5 million agreement accepted on 9 February 2026. Funds are being channelled to organisations such as the Trent Rivers Trust and Gloucestershire Wildlife Trust to deliver barrier removal, habitat works and water‑quality upgrades. Other undertakings accepted during the year included several with Anglian Water and Yorkshire Water, a £373,000 undertaking by Thames Water accepted on 18 December 2025, and £200,000 from Northumbrian Water on 4 March 2026. Acceptance dates span 29 May 2025 to 25 March 2026, with most individual values in the £50,000–£700,000 range.
The rise in total payments coincides with a step‑change in enforcement activity. The Environment Agency cites a record 10,000 inspections of water company assets this year and a significant increase in criminal investigations, supported by additional staff, better data and stronger statutory powers.
Government points to the Water (Special Measures) Act 2025 as strengthening the enforcement toolkit, including cost recovery and new civil penalties. Ministers intend further reforms to close gaps in enforcement and ensure lower‑level breaches are handled swiftly and proportionately.
Water Minister Emma Hardy said companies must be held to account when they break the law and that directing payments into local projects can deliver immediate benefits without lengthy court cases. She also stated that unfair bonuses have been banned and that long‑term reforms will establish a single regulator focused on prevention.
Environment Agency chief executive Philip Duffy said enforcement is being transformed through better data, stronger powers and the agency’s largest enforcement workforce to date. While the most serious offences continue to be prosecuted, he said Enforcement Undertakings ensure money is channelled directly to the places where damage occurred.
From a sector perspective, The Rivers Trust said it would prefer pollution events did not occur but that it is right for polluters to contribute to repair costs when they do. Chief executive Mark Lloyd described Enforcement Undertakings as a useful funding route, while noting they represent only a fraction of the investment required to build catchment resilience to pollution, floods and drought.
For regulated operators, the figures underline the financial and operational expectations tied to compliance. Effective incident response, early engagement with the regulator and demonstrable prevention measures are necessary alongside any financial contribution, with board‑level oversight increasingly in scope as inspection intensity rises. For communities and delivery partners, the mechanism directs funding to the specific rivers and streams affected, enabling local trusts to sequence barrier removals, habitat works and water‑quality projects more quickly than would be possible if funds were routed through general fines.