River Otter: Sewage Pollution

Richard Foord Excerpts

Thursday 18th June 2026 Commons Chamber

[Richard Foord (Honiton and Sidmouth) (LD)]

I am grateful for the opportunity to raise the issue of sewage pollution in the River Otter, a river that flows through many of the Devon communities that I represent.

I should say at the outset that, this morning, I declined an offer of hospitality from the new chief executive of South West Water and its parent company Pennon Group. They offered breakfast in Parliament, but I did not accept as I was here, in the Chamber, trying to catch Mr Speaker’s eye to talk about the Jurassic coast UNESCO world heritage site, and it is helpful that I will get to talk a little bit about that now. My office has written back to South West Water to request a separate meeting with the chief executive to talk through some of the issues that I will raise in the debate. In fairness, the debate is also about issues that apply across the water industry, not just with Pennon Group.

I pay tribute to the more than 75 water testers, campaigners and citizen scientists of the Otter River Catchment Action group—ORCA. The ORCA group developed out of the Otter Valley Association, and it has devoted almost as many hours to understanding and protecting the cherished River Otter as there have been hours of sewage spills into that river, which is saying something. The work of ORCA has provided much of the evidence in my contribution. The dedication of the ORCA volunteers represents the very best of self-organised civic community action and public service.

In particular, I would like to pay tribute to Bruce McGlashan, who passed away suddenly in April this year, just days after ORCA hosted a public meeting at The Institute in Ottery St Mary. Bruce brought to ORCA his experience of having been a manager at the Environment Agency for 30 years. He was also secretary of the River Otter Fisheries Association. Bruce was central to ORCA, and helped us to correspond with South West Water and the Environment Agency. It is hard to believe that he, Peter Williams and I stood on the shingle outside the Otter Inn at Honiton, after a meeting with the Environment Agency, just days before Bruce died. He should have lived to see the River Otter returned to full ecological health.

The Otter should be one of England’s ecological success stories. It runs through a beautiful valley in Devon that supports agriculture, tourism and recreation, and ought to be a rich and diverse habitat. Yet today, most sections of the Otter and its key tributary, the Wolf, are classified by the Environment Agency as having poor ecological status. That places the rivers within the 20% of water bodies with the poorest ecological status in the country. This issue does not just concern the local environment: it also concerns public health and infrastructure, and it is increasingly a question of public trust in the Government’s ability to regulate companies that provide utilities properly.

The facts on the ground are damning. Data obtained from South West Water through freedom of information and environmental information regulation requests reveal an alarming picture of bacterial contamination in the River Otter. Between November 2024 and May 2025, average daily levels of E. coli measured in the river were five times higher than the acceptable level for safe swimming. After periods of rainfall, those levels spiked up to 100 times the safe limit, remaining at increased levels for days or weeks at a time. During the period analysed, E. coli levels exceeded the safe swimming limit on more than 90% of days.

Budleigh Salterton, where the river meets the sea, lost its blue flag status this year because of a deterioration in water quality. Following the loss of that blue flag status, South West Water stated publicly that the E. coli levels at Budleigh’s beach

“could be caused by birdlife in the new Otter Nature Reserve”.

However, ORCA samples from the mouth of the River Otter show E. coli surges correlate with surges upstream of the nature reserve.

We should be honest about the scale of the sewage problem. This challenge is made more difficult by the fact that regular monitoring has been limited. Until recently, nobody was routinely measuring E. coli levels along the River Otter. ORCA volunteers are collecting samples every two weeks. They do so at three locations along the river, building a much-needed evidence base to understand pollution levels, rainfall impacts and likely sources of contamination.

In 2024, South West Water released untreated sewage into the River Otter for more than 9,500 hours. In terms of duration, that is three times more untreated sewage hours spilled into the River Otter than into Exmouth bay. In 2025, more than 8,000 hours of untreated sewage were discharged into the river and its tributaries, following hundreds of monitored sewage overflow events. Untreated sewage is entering the river on a routine basis, and at a scale that cannot be dismissed as a consequence of exceptional weather.

Phosphate pollution further damages the river’s ecology. High concentrations of phosphate cause algal bloom and eutrophication and reduce oxygen levels in the water, causing significant harm to aquatic plants, fish and wildlife. The evidence gathered by ORCA is striking; its monitoring suggests that the presence of a single sewage treatment works on the river can increase harmful phosphate concentrations in the river by around 80% during the summer months. Its testing indicates that around 70% of phosphate found in the middle and lower River Otter can be attributed not to agricultural pollution, but to treated sewage effluent.

One of the most frustrating aspects of this situation is the gap between the pledges we have received from South West Water and the delivery we have seen on them. In August and October 2025, South West Water’s then CEO, Susan Davy, publicly committed to three critical objectives for the River Otter by the end of 2029, which I will quote. The first objective is that

“any storm overflow that is persistently releasing more than 20 times a year will be tackled following investigation of the cause”.

The second objective is that

“where our assets are not performing as they should, or where they are causing environmental harm, we will act”.

The third objective states:

“As part of our 2025–2030 investment programme, we’re targeting improvements across the Otter catchment—including at Ottery St Mary—to reduce storm overflow use, and lower phosphate in our treated discharges”.

At the time, those commitments were welcome, but residents are entitled to ask what progress has been made in the last year. First, at the 11 worst discharge points along the river, there was still an average of 67 untreated discharges in 2025. That is not fewer than the 20 that we were pledged. Secondly, South West Water has published only a limited programme of what it describes as “tactical improvements”. That is hardly action.

Thirdly, despite repeated engagement from local campaigners and community groups, South West Water currently has no scheme to remove phosphate from treated effluent by 2030 and no published plan to meet the commitments made by the former chief exec. There was a time when South West Water talked about a phosphate reduction scheme for Honiton sewage treatment works, which would have removed 35% of all South West Water-sourced phosphate before 2030. According to South West Water more recently, the scheme

“had been removed from the 2025-2030 plan.”

Another consequence of sewage pollution is its impact on housing developments. East Devon district council commissioned a water cycle study as part of its local plan. Honiton sewage treatment works—the largest treatment works on the river—is already operating at 40% above capacity. That is projected to rise to 73% above capacity when future building plans are taken into account.

The council’s report identified many serious failings in South West Water’s sewage infrastructure in the River Otter catchment. That includes failings at three major sewage works that are already operating in excess of their capacity. Their excess untreated sewage is being discharged regularly into the River Otter. Effectively, South West Water has been using the River Otter as a conveyor—a free, open, half-pipe sewer—resulting in significant environmental harm. The council’s report was plain that new housing approvals will require that South West Water delivers suitable additional treatment capacity.

The costs of inaction are mounting: we have environmental degradation, risks to public health, constraints on housing, additional pressure being added by new housing, and growing public frustration.

Residents ask a simple question: why must local communities accept continuing environmental damage, rising bills, and insufficient investment in the infrastructure required to clean up this mess?

According to Ofwat’s most recent water company performance report from 2024-25, South West Water had 108 pollution incidents per 10,000 km of sewer, based on self-reported data—more than double the average for the sector. In fact, South West Water failed to meet its own performance targets for pollution incidents for each of the five years of the 2020-25 period. ORCA’s trained citizen scientists have logged over 2,800 individual tests and observations, whereas the Environment Agency carried out 24 location tests on the River Otter over that period. The public should not have to rely on volunteers to provide the evidence base for environmental protection. The volunteer action we have seen is invaluable, but safeguarding rivers must be the responsibility of water companies, regulators and, ultimately, the Government.

Are we going to have to wait years for the Otter to be coaxed back to health? What specific measures to address these local issues might we see in the Government’s upcoming clean water Bill? Residents of towns and villages across this corner of Devon would love to know. Over 50,000 people have signed a petition that was initiated in February by Marc Astley. Marc lives in Ottery St Mary, and he and his family put together a petition stating that

“if environmental standards aren’t being met, executives shouldn’t be receiving bonuses. The government has introduced new powers intended to block payouts when environmental performance fails…But loopholes remain—rewards can still be restructured as retention payments or routed through parent companies. To the public, that looks like bonuses by another name…The end goal is clear: close the loopholes and link executive rewards directly to measurable environmental outcomes—cleaner rivers, healthier seas and fewer sewage discharges.”

I know that the Minister also wants to see cleaner rivers and seas, and that she is committed to her brief. Can she confirm to the more than 50,000 people who signed that petition that those loopholes will be closed by new legislation?

The River Otter is not a cost-free extension of the sewerage infrastructure network that enables bill hikes and increased shareholder returns. It is supposed to offer a living ecosystem, a valued recreational resource, and an integral part of the lives of the people who live in east Devon. The people who live along the banks of the Otter are not asking for miracles; they are asking for honest monitoring, adequate infrastructure and accountability, with pledged commitments being met. The River Otter can recover—we have seen elsewhere that targeted investment in treatment infrastructure and phosphate removal can make a real difference—but recovery will require urgency, transparency, and a willingness to move beyond promises and towards delivery. Bruce McGlashan’s legacy will live on if the polluters, the regulators and we Members listen to, and act on, the citizen science carried out by the volunteers I represent today.