A new report published by UK Water Industry Research (UKWIR) explores the potential implications of the recast Urban Wastewater Treatment Directive should it be introduced in the UK, outlining the potential effects it would have on the water sector and wastewater treatment regulation in the UK.
Abstract:
The recast Urban Wastewater Treatment Directive (rUWWTD), published by the EU in November 2024, has the potential to be the largest step-change in wastewater treatment for member states since its predecessor. It introduces a prescriptive framework for lowering the population thresholds for collection systems and secondary treatment requirements, alongside more stringent and context-independent requirements for nutrient removal and the advent of widespread limits covering chemicals of concern. If the UK decides upon alignment, this will affect wastewater treatment regulation in the UK similarly.
For the UK, the potential to adopt individual rUWWTD Articles may be appealing to environmental regulators as it helps to ensure that domestic environmental standards remain aligned with those of the EU, avoiding any perception of regulatory regression and may deliver tangible environmental benefits. For Ireland, where the rUWWTD will be adopted in full, this project helps inform the selected pace of change and any candidates for derogations.
This project aimed to inform these decisions and enable the Water Sector to engage effectively with regulators and policymakers on the most appropriate responses to the rUWWTD in each nation covered. Specifically, it covered compliance and costs associated with Articles 3, 5, 6, 7, and 8, and identified overlaps and gaps with current legislation.
Potential Implications of the recast Urban Waste Water Treatment Directive