Sewage: Waste Disposal
The question
To ask the Secretary of State for Environment, Food and Rural Affairs, what assessment she has made of the implications for her policies of the Office for Environmental Protection Investigation Report, published in December 2025.
Answered by Mary Creagh
In December 2025, the Office for Environmental Protection (OEP) published the concluding reports of its investigation into the regulation of network Combined Sewer Overflows (CSOs) in England. I was pleased to see recognition that work undertaken by this Government has built the foundations for much needed change in the water sector.
The OEP stated that, throughout the investigation, all public authorities engaged constructively, with a focus on the outcome of protecting the environment. We agree with the OEP that it is important for Defra, the Environment Agency and Ofwat to be fully transparent when it comes to their roles and responsibilities in the regulation of network CSOs.
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