Sewage

Brian Mathew Excerpts

Wednesday 23rd April 2025 Commons Chamber

[Brian Mathew (Melksham and Devizes) (LD)]

The pollution of rivers is an issue that strikes close to home for many of us. Just last November, Wessex Water was fined half a million pounds for pumping raw sewage into Clackers brook, a small river rising in Bromham and flowing 5 miles through Melksham in my constituency. This incident resulted in the deaths of more than 2,000 fish, including all aquatic life within a 1 km radius of the leak. The systems in place simply cannot handle the pressure brought to bear by the increasing volatility in rainfall levels seen in recent times.

I have also been to visit the home of one of my constituents in West Lavington, where a manhole had been lifted from its housing as a result of a downpour. Toxic sewage then polluted a nearby chalk stream, damaging its unique ecosystem that is home to a variety of species, including trout. These kinds of incidents cannot be allowed to persist.

The current antiquated piping system does not satisfy modern demand. Water companies must update and future-proof these systems, and we need them to do so now. I was pleased to see Wessex Water—credit where it is due—invest £2 million in a sewage storage facility in Bradford-on-Avon to ensure that it can mitigate increased pressure on sewage pipes. However, it is clear that more must be done to protect our vital aquatic ecosystems.

We must be clear that this is not just a problem for water companies. Developments in farming practices have led to detrimental impacts on both soil quality and river health. Acreage dedicated to the production of maize trebled between 1990 and 2000, making it one of the UK’s fastest growing crops. However, maize allows for high levels of surface run-off, causing soil degradation and the pollution of our rivers. That makes it one of the most damaging crops.

The rise in intensive poultry units is another area of concern. Chicken manure contains far higher levels of phosphates than manure from other farmed animals, and it starves fish and river plants of oxygen. Run-off from chicken farms or indeed fields spread with chicken manure is catastrophic to our waterways.

We must expect better from our water companies. Investment in infrastructure must rise with the demands of the modern world.

[Dr Opher]

In Stroud, Severn Trent has invested £25 million to stop overflow of sewage into the River Frome. Together with natural flood management from our district council, we have made rivers cleaner, and as a keen swimmer I am grateful for that. Would the hon. Member acknowledge that some water companies have been investing heavily?

[Brian Mathew]

As I have just said, in Bradford-on-Avon, similar investments have been made—credit where credit is due.

I will come back to the important issues about farming. We should also approach the issue of river pollution in a far more holistic manner, acknowledging the various factors, including agriculture, that contribute to the fact that just 14% of our waterways are in good health.