Bathing Water Status: Rivers

Robert Courts Excerpts

Wednesday 9th November 2022 Commons Chamber

[Andrew Jones]

Well, it would not be an Adjournment debate if the hon. Member did not intervene. These things should become proprietorially known as “Shannon moments”. I obviously agree with his point that water safety is critical, but also his point about informing people about where it is safe and not safe. There is a role for local government in signage. I certainly agree with him.

I have met Nidd catchment anglers, the owners of the lido, residents and businesses, and they are all on board with the proposal for the Knaresborough site. So how do we reach that important water quality standard? The answer is to improve the actions and inputs on water quality from so many stakeholders.

One key concern for river water quality is the Victorian design of our sewerage system. This system mixes foul water—sewage—and rainwater run-off in the same sewer system. Combined sewer overflows were installed to enable sewers to cope with the additional volume during periods of heavy rain. That enabled the sewers to discharge into rivers. If the CSOs did not exist, it would back up into our homes when the system is overloaded, and that would be worse, but we have seen them operating more frequently due to increasing population and in particular due to changing weather patterns, with more intense rainfall.

[Robert Courts (Witney) (Con)]

I am very grateful to my hon. Friend for letting me intervene on him. He speaks with total passion on this issue, and it is a passion that West Oxfordshire feels, too, about the Evenlode and the Windrush, which we have. He is right that this challenge must be overcome with a team effort, but does he agree that sooner or later the Victorian infrastructure he has spoken about will need to be upgraded and water companies’ investment will be key to that?

[Andrew Jones]

My hon. Friend is as wise as ever. I happen to know the Windrush a little bit, and it is a very beautiful part of our country. He is most fortunate to have it in his constituency. While it is a team effort, it will have to be backed by investment. It is one of a number of policy areas where our requirement for infrastructure has not kept pace with modern demands, so he is absolutely correct, and I do agree with him.

One area where we have seen significant progress is with the increased monitoring of CSOs, and that has contributed to greater awareness of the number of discharges. In 2016, only 5% were monitored—next year it will be 100%. That is very good progress. Information from the House of Commons Library, based on monitoring data supplied by the Environment Agency, shows that 97% of CSOs are monitored in Yorkshire, which is ahead of the national picture. In 2021, each CSO in Yorkshire discharged on average 34 times, with the average duration at 5.8 hours. While that is the second-best performance for the duration of discharges in England, it is still way too much and it shows just how far there is to go.

In terms of progress on this issue by my local water company, Yorkshire Water has recently announced an additional £100 million investment, funded by its shareholders, on top of its existing five-year business plan, aimed at reducing average bills by a minimum of 20% a year by March 2025, and that is compared with a baseline in 2021. In addition to the increased extreme weather and flash flooding events that cause CSOs to operate, a change to what we put into the system has been occurring over the past decade or so, particularly with wet wipes, but also with nappies being the main new entrants alongside fat from cooking.

Wet wipes are responsible for 90% of sewer blockages and contribute to the formation of fatbergs—all hon. Members probably know what fatbergs are; they are truly grim. When the sewers are blocked, the CSOs operate and flush the wet wipes, and anything that is backed up behind them, which obviously includes human waste, into waterways. The hon. Member for Putney (Fleur Anderson) has done good work with her Plastics (Wet Wipes) Bill to remove plastic from wet wipes. I support that work and think it is right, but even removing plastic from wet wipes is not guaranteed to make the problem go away. Consumer behaviour can change, however, which could help; the UK currently flushes 11 billion a year.

I raised the issue of new building standards at business questions last week. Rainwater run-off from new housing estates contributes to the volume of water that can overwhelm sewers and trigger a CSO to operate. In terms of building standards, developers must ensure that water is retained on site for longer before it is gradually released into the system. Attenuation tanks and ponds have a role to play. We have just had an important debate on levelling up rural Britain, and agricultural practices are also involved. Rainwater can cause fertilisers, pesticides and animal waste to enter rivers and lower water quality, which is highly significant in many parts of our country.

We as legislators also have a major role to play. The Environment Act 2021 contains a variety of measures, but at its heart is transparency. It makes it a legal requirement for companies to provide discharge data to the Environment Agency and make it available in near-real time to the public. That increase in monitoring and transparency has already led to more enforcement action, and in some cases fines, for water companies where breaches have been found—and quite right too.

I view water improvement as a real team effort; it is not for a single actor to take the actions. It means improved targets, vigilant monitoring, enforcement action, increased investment from water companies, and behavioural change. Achieving bathing water status is a significant step to implementing the changes needed to improve river water quality more widely because, if achieved, the Environment Agency will develop a bathing water profile and put plans in place to monitor and protect the bathing water.

That is why I wanted to bring this complex and long-standing issue to the House to ask the Minister what more can be done to promote the quality of inland waterways. Bathing water status in the UK has mainly been a coastal issue up to now, but rivers must be included far more in future. I also wanted to highlight, of course, our campaign to secure bathing water quality status for the River Nidd at the lido in Knaresborough to make one of Yorkshire’s best even better.