Environmental investigation as accountability journalism
Environmental investigations in the UK have a rich ecosystem of public data to draw on: planning applications and decisions on the national planning portal, Environment Agency permit records and enforcement notices, water company event duration monitoring (EDM) data on sewage spills, Ofwat compliance assessments, and Land Registry records for tracing property ownership connected to polluting sites.
The regulatory framework differs across the four UK nations. The Environment Agency covers England; Natural Resources Wales (NRW) covers Wales; the Scottish Environment Protection Agency (SEPA) covers Scotland; and the Northern Ireland Environment Agency (NIEA) covers Northern Ireland. Each has its own public register, enforcement framework, and data publication standards. This guide focuses primarily on England with notes on the devolved position.
Environmental investigations carry specific risks: the science can be technically complex, attribution of causation requires expert input, and corporate defamation claims are common in this area. The Environmental Information Regulations (EIR) give stronger access rights than standard FOI in many cases. Effective environmental journalism combines data analysis, expert consultation, EIR/FOI requests, and right-of-reply processes.
When environmental data sources are most valuable
- 1Investigating water company sewage discharges using EDM data from the Environment Agency or NRW.
- 2Tracing the ownership of a site connected to pollution incidents via Land Registry and Companies House.
- 3Assessing whether a company's permitted emissions or discharge levels have been exceeded using the EA public register.
- 4Tracking planning applications for controversial developments — quarries, waste facilities, industrial sites — through the national planning portal.
- 5Using EIR requests to obtain monitoring data, inspection reports, or correspondence that the regulator has not proactively published.
- 6Cross-referencing planning permission grants with Land Registry transfers and Companies House records to identify beneficial ownership.
- 7Comparing regulatory enforcement action against a company with its public CSR claims.
Red flags and reporting pitfalls
- Complex chemistry and legal nuance: do not state that a permit breach caused specific harm without expert verification. Causation in environmental science is often contested.
- Defamation around corporate liability: attributing pollution to a named company requires clear, independently verified evidence. A permit breach does not automatically mean the company caused a specific pollution incident.
- Misreading EDM data: event duration monitoring data records overflows from combined sewer overflows — not all are illegal; storm overflows are permitted under some conditions. Get expert context before characterising EDM data as evidence of illegal activity.
- Planning portal data can be incomplete or delayed: local authority portal data is not always up to date, and some authorities are better than others at publishing decision notices promptly.
- SEPA and NRW data formats differ from the EA: do not import analytical assumptions built on EA data to Scottish or Welsh regulatory data without verifying the equivalent data schema.
- Ownership opacity: sites owned through complex corporate chains or offshore structures may not have clear Land Registry entries. Absence of a clear title is itself a story, not a dead end.
Environmental investigation research checklist
- I have identified the relevant regulator for the jurisdiction (EA for England, NRW for Wales, SEPA for Scotland, NIEA for Northern Ireland) and checked its public register.
- I have downloaded and reviewed the relevant permit for the site or operation under investigation.
- I have checked the EA, NRW, SEPA, or NIEA enforcement action database for previous enforcement notices, cautions, or prosecutions involving the operator.
- I have reviewed EDM data for relevant water company CSOs using the EA data publication and/or sewagemap.co.uk.
- I have used the national planning portal (planning.gov.uk) to locate planning applications and decisions for the relevant site.
- I have used Land Registry to establish current and historic ownership of relevant sites.
- I have used Companies House to trace the corporate structure of the operator and identify any beneficial owners.
- I have submitted an EIR request (preferred over FOI for environmental data) for monitoring data, inspection reports, or correspondence not proactively published.
- I have consulted an independent expert (ecologist, hydrologist, environmental lawyer) on the technical accuracy of my findings before publication.
- I have given the company a detailed right-of-reply with specific and accurate allegations before publication.
Tools for environmental FOI and EIR requests
Use our FOI Request Builder to draft EIR requests to the Environment Agency, local authorities, and devolved regulators. Use our Environmental Information Regulations guide for the EIR-specific framework.
Common mistakes
- Using FOI when EIR would give stronger access rights and a shorter response time for environmental information.
- Treating EDM data as self-evidently showing illegal activity without understanding the permit conditions for storm overflows.
- Not consulting an independent scientific expert on causation before attributing environmental harm to a specific actor.
- Accepting a company's own monitoring data without requesting the regulator's independent monitoring records.
- Failing to check the devolved regulatory registers when a site spans or is near a national boundary.
- Not following the Land Registry ownership trail all the way through corporate layers to identify ultimate beneficial owners.
- Publishing claims about corporate environmental liability without a detailed right-of-reply process that could have surfaced a legitimate defence.
Related guides
Primary sources
- Environment Agency — Get Information About a Site— Environment Agency
- Environment Agency Open Data— Environment Agency
- Ofwat — Water Services Regulation Authority— Ofwat
- National Planning Portal— Planning Portal Ltd / DLUHC
- HM Land Registry — Search for Land and Property Information— HM Land Registry
- SEPA — Scottish Environment Protection Agency Public Registers— SEPA
- Natural Resources Wales — Check for a Permit or Exemption— Natural Resources Wales
- Environmental Information Regulations 2004— legislation.gov.uk
Frequently asked questions
What is the Environmental Information Regulations (EIR) and how does it differ from FOI?
The Environmental Information Regulations 2004 (EIR) implement the EU Aarhus Convention and give a right of access to environmental information held by public authorities. EIR is broader than FOI in some respects: there is a stronger presumption in favour of disclosure, and fewer absolute exemptions. However, EIR does not cover private companies (including private water companies) — for those, you rely on the regulatory reporting obligations they have to the Environment Agency, Ofwat, or the relevant devolved regulator. In Scotland, the EISR (Environmental Information (Scotland) Regulations 2004) applies. In practice, many environmental data requests are better framed under EIR than FOI.
Where can I find water company sewage spill (EDM) data?
Event Duration Monitoring (EDM) data records the number and duration of sewage overflows from combined sewer overflows (CSOs). Water companies in England are required to report EDM data to the Environment Agency, which publishes it online. The data shows by individual CSO the number of spill events and hours per year. The Rivers Trust’s sewage map at sewagemap.co.uk provides a mapped, searchable interface on top of the Environment Agency data. Ofwat also publishes compliance assessments for each water company. In Wales, Natural Resources Wales is the relevant regulator.
How do I access the Environment Agency public register?
The Environment Agency maintains a public register of environmental permits, enforcement actions, and compliance information for regulated sites in England. This includes permits for industrial facilities, waste management sites, and water discharge. The public register is accessible at environment.data.gov.uk and via the EA's “Get information about a site” tool. You can search by location, operator name, or permit number. In Scotland, SEPA (Scottish Environment Protection Agency) operates a separate public register at sepa.org.uk. In Northern Ireland, NIEA (Northern Ireland Environment Agency) maintains its own register.
How do I trace the ownership of a polluting site via Land Registry?
HM Land Registry title register documents (available for £3 per title in England and Wales) record current ownership, historic transfers, and any charges or restrictive covenants on a property. For industrial or commercial sites, ownership can be traced through a sequence of title documents. If the site is owned by a company, use Companies House to trace the corporate structure and beneficial ownership. If ownership is offshore or opaque, use OpenCorporates to track foreign corporate structures. SEPA and NIEA are the relevant registries for Scotland and Northern Ireland, where Land Registry does not cover.
What is the ENDS Report and why is it useful for environmental investigations?
ENDS Report (Environmental Data Services) is a UK subscription trade journal that covers environmental regulation, enforcement, and policy. It publishes enforcement notices, prosecution results, and regulatory decisions that are not always prominently covered in mainstream media. While ENDS itself is a subscription service, enforcement notices and prosecution results from the Environment Agency, SEPA, and Ofwat are published in their own press release archives and annual reports, which are free. ENDS Report is useful for identifying regulatory patterns and enforcement gaps over time.
What are the defamation risks in environmental corporate reporting?
Environmental investigations that attribute pollution or planning breaches to named companies carry defamation risk if the attribution is inaccurate. The key protections are: (1) qualified privilege for fair and accurate reports of public authority enforcement actions and permit registers; (2) public interest defence under Section 4 of the Defamation Act 2013 if the publication was on a matter of public interest and was reasonable; (3) truth (justification) where the underlying facts are provably correct. Environmental science can be genuinely complex — do not overstate the severity of an environmental impact without expert verification. Always put specific allegations to the company before publication.