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67 Water Company Prosecutions, £153 Million in Fines — and Growing Enforcement Powers
Environmental crime and pollution prosecutions in the UK are escalating sharply. The Environment Agency (EA) — the primary regulator for environmental offending in England — has significantly intensified enforcement in recent years, particularly against water companies and waste sector operators. Between January 2015 and August 2025, the EA completed 67 prosecutions of water companies securing fines exceeding £153 million. Waste crime alone costs the UK economy over £600 million per year. And from October 2025, new automatic civil penalties give the EA faster enforcement tools for a wider range of offences.
Key Facts & Figures (Overview)
Water Company Enforcement:
- Between January 2015 and August 2025: 67 prosecutions of water companies securing fines of over £153 million (Environment Agency Water Performance Report 2024, published October 2025)
- In 2024/25: 6 prosecutions against 4 different water companies; total fines £3,527,000; fine range: £25,000 to £2,072,000
- 5 of the 6 prosecutions resulted from pollution incidents or permit breaches affecting water quality
- The EA also accepted 10 enforcement undertaking offers from 3 water companies in 2024/25 totalling £4,193,780 (ranging from £100,000 to £1,000,000)
- Over the past 5 years: over £15 million directed towards environmental projects via enforcement undertakings from water companies
- In 2024/25, the EA exceeded its target of 4,000 inspections of regulated sites; it is on track to deliver 10,000 inspections in 2025/26
- Thames Water rated as the only "1 star" (poor performing) water company in the 2024 Environmental Performance Assessment; 7 companies rated as "requiring improvement" (2 stars); only Severn Trent Water achieved 4 stars (industry-leading)
- October 2025: The government announced new automatic civil penalties for water companies: a cap at either £350,000 or £500,000 for penalties issued to the civil standard of proof — allowing faster enforcement without the burden of criminal prosecution for minor to moderate offences
- Persons obstructing Environment Agency investigations now face up to 2 years in prison
- New enforcement levy: the EA will recover £12.6 million in costs in 2025/26 as a transitionary year (rising to full cost recovery of £20.9 million thereafter)
Waste Sector Enforcement:
- Prosecution cases against the waste sector in 2024 led to total fines of approximately £320,000 and 37 custodial sentences (EA Chief Regulator's Report 2024-25)
- Waste crime costs the UK economy over £600 million per year — including clean-up costs, business disruption, and the competitive disadvantage borne by compliant operators (Clyde & Co data)
- EA category 1 and 2 pollution incidents (the most serious classifications, where actual significant environmental harm occurs) are tracked annually
- New waste crime powers introduced in recent years include aerial surveillance mapping of England's landscape to detect illegal waste site changes, vehicle seizure powers, and enhanced site licensing requirements
Enforcement Trends:
- The Sentencing Council's Definitive Guideline for Environmental Offences (in force since July 2014) dramatically increased sentencing severity, particularly for large organisations. The average fine per EA prosecution against companies rose from £23,731 in 2013/14 to over £147,575 in 2017/18 — and has continued to rise as the guidelines bite harder on major corporate offenders
- The EA's enforcement model increasingly reserves criminal prosecution for the most serious offences and offenders, while using civil sanctions and enforcement undertakings for less serious matters — resulting in fewer prosecutions but higher average fines
- Over 80 new enforcement roles have been created following the new enforcement levy
The Legal Framework
Environmental crime in the UK is governed by a complex framework of legislation, administered primarily by the Environment Agency in England, Natural Resources Wales, SEPA in Scotland, and NIEA in Northern Ireland. Key legislation includes:
Environmental Protection Act 1990: The primary statute for waste management and contaminated land, including the duty of care for waste and offences of unlawful deposit, treatment, keeping, or disposal of waste.
Water Resources Act 1991: Governs water pollution offences — including causing or knowingly permitting the entry of poisonous, noxious, or polluting matter into controlled waters. This is the statute most commonly used to prosecute water companies.
Environment Act 1995: Established the Environment Agency and its enforcement powers, including Variable Monetary Penalties (unlimited fines against companies where offending is proved to the criminal standard).
Environmental Permitting (England and Wales) Regulations 2016: Require operators of regulated facilities (waste sites, water discharges, industrial installations) to hold and comply with environmental permits. Operating without a permit or in breach of permit conditions is a criminal offence.
Environment Act 2021: Introduced new civil sanction powers and established the Office for Environmental Protection (OEP) as an independent body to scrutinise environmental law application and enforcement. The 2021 Act also gives the EA new powers to impose automatic penalties for specific breaches.
Enforcement Undertakings
An enforcement undertaking is a voluntary agreement — offered by an offender and accepted by the EA — which becomes legally binding. It is used for less serious offending where prosecution would be disproportionate. The undertaking requires the offender to:
- Restore the environment or compensate for harm caused
- Put in place measures to prevent recurrence
- Fund environmental improvement projects in the local catchment or community
The Yorkshire Water enforcement undertaking in November 2023 — £1 million to charities after polluting Hookstone Beck in Harrogate, plus a £1.85 million sewer network upgrade — was the largest the EA had ever accepted at the time. This model allows the EA to secure significantly more environmental restoration value than a fine, while reducing the court resource burden.
Written by CPD Experts
This guide was produced by the team at Online CPD Academy, a UK provider of CPD-accredited online training courses. Our environmental awareness, waste management compliance, and health and safety training supports businesses in understanding and meeting their environmental obligations.
Sources & References
- Environment Agency / Gov.UK – Environment Agency Chief Regulator's Report 2024-25: Supporting Evidence – https://www.gov.uk/government/publications/environment-agency-chief-regulators-report-2024-25/environment-agency-chief-regulators-report-2024-25-supporting-evidence
- Environment Agency / Gov.UK – Water and Sewerage Companies in England: Environmental Performance Report for 2024 – https://www.gov.uk/government/publications/water-and-sewerage-companies-in-england-environmental-performance-report-2024/water-and-sewerage-companies-in-england-environmental-performance-report-for-2024
- Gov.UK – New Financial Penalties for Environmental Offences (October 2025) – https://www.gov.uk/government/news/new-financial-penalties-for-environmental-offences
- Environment Agency / Gov.UK – Environment Agency 2024 Data on Regulated Businesses in England – https://www.gov.uk/government/publications/environment-agency-2024-data-on-regulated-businesses-in-england
- Environment Agency Blog – How the EA Uses Its Enforcement Powers to Hold Water Companies to Account (October 2024) – https://environmentagency.blog.gov.uk/2024/10/30/how-the-ea-uses-its-enforcement-powers-to-hold-water-companies-to-account/
