It is a pleasure to see you in the Chair, Mr Paisley. I thank my hon. Friend the Member for Gower (Tonia Antoniazzi) for securing the debate and for her opening remarks.
I am really pleased to have the opportunity to speak in the debate on behalf of the 140 residents of Dulwich and West Norwood who signed the petition to ban raw sewage discharges, and the thousands of others in my constituency for whom this is an important issue. As a member of the Environmental Audit Committee, I pay tribute to our Chair, the right hon. Member for Ludlow (Philip Dunne), for his commitment and work on this issue over many months.
I recently had the opportunity to visit the River Windrush in Oxfordshire, where a group of local residents have come together as Windrush Against Sewage Pollution in order to take action on the impact on the ecology of the river of Thames Water’s frequent discharges into it. I pay tribute to them for their work, which has been instrumental in the struggle to hold water companies to account for the damage that they cause to health and the environment by discharging raw sewage into our rivers. Windrush Against Sewage Pollution has engaged in citizen science over several years by monitoring the water quality and ecological diversity of the River Windrush. Through such data gathering, the group is able to understand the impact of raw sewage discharge and has discovered that raw sewage discharges are underreported, going undetected by the Environment Agency in as many as 96.5% of cases. All the evidence points to the inadequacy of the Environment Agency’s action on sewage discharge.
On the same visit, we went to a Thames Water treatment works that discharges into the River Windrush. That revealed further issues with the water treatment and monitoring regime that I want to highlight. Specifically, in addition to the problem of frequent undetected and unsanctioned discharges of raw sewage, water companies are not required to measure or treat many substances that are harmful to the environment. Among them are microplastics, which are present both in river discharge and in sewage sludge, which is spread on the land for fertiliser, thereby potentially entering the food chain; antibiotics, at a time when there is a huge race against growing antibiotic resistance; and hormones, which have an impact on the reproduction of fish and other aquatic life.
We have a monitoring, treatment and enforcement framework for wastewater treatment and discharge that is simply not fit for purpose for the serious environmental challenges we face. At the same time, water companies are also failing to invest adequately in their clean water infrastructure. Across my constituency, where ageing water pipes are put under additional strain by hilly topography, there are serious water leaks and bursts every single week. I have been pressing Thames Water for years to invest in the pipe replacement that we need to secure a reliable water supply for local residents and stop the terrible waste of drinking-quality water that occurs whenever there is a leak.
I am pleased that in response to that pressure, the level of investment in my constituency has increased, but we are still far from a plan to replace all the pipes that need replacing. Thames Water still has a serious
problem with the quality of its workmanship. Almost without fail, as soon as replacement works finish in my constituency, a new leak occurs because the workmanship is so poor. There have been two such instances in the last three weeks—it happens all the time.
We face a climate emergency and ecological crisis. Nature recovery is a vital part of our response to climate change, and river water quality is critical. Privatised water companies are not fit for the task. They already face competing priorities—the need for investment in both clean water and water treatment infrastructure—and are trying to face in those two different directions at the same time. They also have to face in a third direction: to deliver the returns for which they are under constant pressure from shareholders. That is not a responsible way to run such critical infrastructure, and it simply is not working.
We need the water industry returned to common ownership so that it can focus on delivering functioning clean water infrastructure and be part of the solution to the challenge of nature recovery. Our rivers and communities cannot wait any longer.
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