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Record number of illegal sewage spills in Windermere last year

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Monday, March 31, 2025

Record number of illegal sewage spills in Windermere last yearJonah FisherBBC environment correspondentReutersSewage spilled illegally into Britain's largest lake on a record number of days last year, an analysis of water company data by campaigners suggests.The analysis, which the BBC had exclusive access to, used United Utilities operational data to establish when the company was discharging sewage into Windermere when it should by law have been treating some of it.The campaigners from Windrush Against Sewage Pollution (WASP) and Save Windermere identified 140 illegal spill days in 2024, more than in any of the three previous years. United Utilities told BBC News that the campaigners' findings were "inaccurate" and some of the data "erroneous". The company declined to put in writing, despite repeated requests, any specific examples of mistakes or omissions. Regulators Ofwat and the Environment Agency are both currently investigating United Utilities operations. PAWindermere is one of Britain's most loved beauty spotsLast week the Environment Agency said United Utilities had spilled 77,817 times in 2024, the highest figure of all England's water companies. Many of the spills will have been legal. All water companies are legally allowed to discharge raw sewage to stop the network getting overwhelmed and this now happens regularly during periods of heavy rain.But almost all pumping stations and treatment plants operate under an environmental permit which specify that they must process or "pass forward" a certain amount of sewage and rainwater before spilling starts.The campaigners cross-referenced United Utilities datasets showing when an asset was spilling against how much sewage it was treating at the time. The campaigners' analysis – which has been shared with and scrutinised by the BBC - found days when illegal spills appear to have occurred at each of six sewage facilities around the lake, which combined to 140 days in 2024. That's more than in any of the previous three years, as the chart below shows.The longest illegal spill the analysis identified was for 10 days from Hawkshead pumping station, which flows into Windermere via Cunsey Beck."This is an indication that their works have not been maintained properly or they're not being watched over properly," says Prof Peter Hammond, a mathematican and retired academic from campaign group Windrush Against Sewage Pollution. Prof Hammond's analysis of water company data has been cited by regulators and he has been praised in Parliament by water company executives for bringing problems to light they were previously unaware of. The latest analysis covers four years of data from six sites that discharge sewage into the Lake Windermere catchment.Comparisons over a longer time period are impossible as United Utilities has only had made full data sets available since 2021.Prof Hammond's analysis of water company data has been praised in ParliamentThe regulators Ofwat and the Environment Agency have since 2021 been investigating whether the water companies have been treating enough sewage before they start to spill. The EA call it a "major criminal investigation" while Ofwat call it "the largest and most complex Ofwat has ever undertaken". Last week Yorkshire Water agreed to a £40m "enforcement action" after Ofwat uncovered "serious failures" in how it operated its treatment plant and network. Ofwat declined to comment on the campaigner's findings as their investigation into United Utilities is ongoing. In response to concerns about United Utilities the Environment Agency last year reviewed all of its environmental permits in the Windermere catchment and says this led directly to the water company tripling its investment plans for the area to £200m."We are currently carrying out investigations into suspected pollution incidents on the Windermere catchment and are unable to comment on these in detail until they have reached a conclusion," an EA spokesperson said when the campaigners' analysis was shared with them."Where we find breaches of environmental permits, we will take the appropriate enforcement action up to and including a criminal prosecution."Save WindermereSewage has been blamed for turning parts of the lake green – so called "algal blooming"United Utilities, which provides services to more than seven million people across north-west England, is more than £9bn in debt. Its chief executive Louise Beardmore confirmed to parliament in February that she was last year paid £1.4m including a bonus of £420,000."The methodology used by the campaigners is different to that used by the Environment Agency for its compliance assessments," the water company said in a statement."On top of that, erroneous data has been used, tags and naming conventions in data sets appear to have been misunderstood, and assumptions seem to have been made on whether different types of flow meters have been installed.""The methodology fails to use other corroborating information from the sites which would prove that spills did not occur. As a result, the numbers quoted are inaccurate."BBC News presented United Utilities with five examples of illegal spills the campaigners' analysis had identified using the company's data and asked for any evidence or explanation as to why they were not illegal. United Utilities repeatedly declined to do so in writing or on camera."What we're seeing is the failure of privatisation. We're seeing a prioritisation of dividend returns over the long-term environmental protection of places like Windermere" says Matt Staniek from Save Windermere."The bill payer has paid for a service that has never fully been provided, and the illegality demonstrates that for all to see."Over the next five years bills in the United Utilities area will go up by 32% above the rate of inflation. On average that will mean a rise of £86 for the year that starts in April. Louise Beardmore said the rises will fund the "largest investment in water and wastewater infrastructure in over 100 years". For Windermere that's set to mean nine wastewater treatment works, including two that were included in the campaigners' analysis being upgraded and a reduction in the number of overflows discharging into the lake.

Campaigners identified 140 illegal spill days into the beauty spot in 2024

Record number of illegal sewage spills in Windermere last year

Jonah Fisher

BBC environment correspondent

Reuters Canada geese gather on a jetty jutting out into Lake Windermere's dark waters. Green mountains are visible in the background and there are a few sail boats with their sails bound up. In the foreground a thick black post carries a warning poster saying in big red letters CAUTION TOXIC ALGAE, then in smaller black letter it says: Take car when bathing in this water. This water may contain toxic algae which can cause upset stomach and skin irritation. Animals can also be seriously affected.Reuters

Sewage spilled illegally into Britain's largest lake on a record number of days last year, an analysis of water company data by campaigners suggests.

The analysis, which the BBC had exclusive access to, used United Utilities operational data to establish when the company was discharging sewage into Windermere when it should by law have been treating some of it.

The campaigners from Windrush Against Sewage Pollution (WASP) and Save Windermere identified 140 illegal spill days in 2024, more than in any of the three previous years.

United Utilities told BBC News that the campaigners' findings were "inaccurate" and some of the data "erroneous".

The company declined to put in writing, despite repeated requests, any specific examples of mistakes or omissions.

Regulators Ofwat and the Environment Agency are both currently investigating United Utilities operations.

PA A beautiful shot of Lake Windermere in the summer with still water fringed by trees and lush green mountains in the background. There are some white clouds in the blue sky which are reflected onto the lake's still surface.PA

Windermere is one of Britain's most loved beauty spots

Last week the Environment Agency said United Utilities had spilled 77,817 times in 2024, the highest figure of all England's water companies.

Many of the spills will have been legal. All water companies are legally allowed to discharge raw sewage to stop the network getting overwhelmed and this now happens regularly during periods of heavy rain.

But almost all pumping stations and treatment plants operate under an environmental permit which specify that they must process or "pass forward" a certain amount of sewage and rainwater before spilling starts.

The campaigners cross-referenced United Utilities datasets showing when an asset was spilling against how much sewage it was treating at the time. The campaigners' analysis – which has been shared with and scrutinised by the BBC - found days when illegal spills appear to have occurred at each of six sewage facilities around the lake, which combined to 140 days in 2024. That's more than in any of the previous three years, as the chart below shows.

The longest illegal spill the analysis identified was for 10 days from Hawkshead pumping station, which flows into Windermere via Cunsey Beck.

"This is an indication that their works have not been maintained properly or they're not being watched over properly," says Prof Peter Hammond, a mathematican and retired academic from campaign group Windrush Against Sewage Pollution.

Prof Hammond's analysis of water company data has been cited by regulators and he has been praised in Parliament by water company executives for bringing problems to light they were previously unaware of.

The latest analysis covers four years of data from six sites that discharge sewage into the Lake Windermere catchment.

Comparisons over a longer time period are impossible as United Utilities has only had made full data sets available since 2021.

Prof Hammond's analysis of water company data has been praised in Parliament

The regulators Ofwat and the Environment Agency have since 2021 been investigating whether the water companies have been treating enough sewage before they start to spill. The EA call it a "major criminal investigation" while Ofwat call it "the largest and most complex Ofwat has ever undertaken".

Last week Yorkshire Water agreed to a £40m "enforcement action" after Ofwat uncovered "serious failures" in how it operated its treatment plant and network.

Ofwat declined to comment on the campaigner's findings as their investigation into United Utilities is ongoing.

In response to concerns about United Utilities the Environment Agency last year reviewed all of its environmental permits in the Windermere catchment and says this led directly to the water company tripling its investment plans for the area to £200m.

"We are currently carrying out investigations into suspected pollution incidents on the Windermere catchment and are unable to comment on these in detail until they have reached a conclusion," an EA spokesperson said when the campaigners' analysis was shared with them.

"Where we find breaches of environmental permits, we will take the appropriate enforcement action up to and including a criminal prosecution."

Save Windermere Light green algal blooms swirl around boats in the dark waters on the shore of the lake in a shot taken from a droneSave Windermere

Sewage has been blamed for turning parts of the lake green – so called "algal blooming"

United Utilities, which provides services to more than seven million people across north-west England, is more than £9bn in debt. Its chief executive Louise Beardmore confirmed to parliament in February that she was last year paid £1.4m including a bonus of £420,000.

"The methodology used by the campaigners is different to that used by the Environment Agency for its compliance assessments," the water company said in a statement.

"On top of that, erroneous data has been used, tags and naming conventions in data sets appear to have been misunderstood, and assumptions seem to have been made on whether different types of flow meters have been installed."

"The methodology fails to use other corroborating information from the sites which would prove that spills did not occur. As a result, the numbers quoted are inaccurate."

BBC News presented United Utilities with five examples of illegal spills the campaigners' analysis had identified using the company's data and asked for any evidence or explanation as to why they were not illegal. United Utilities repeatedly declined to do so in writing or on camera.

"What we're seeing is the failure of privatisation. We're seeing a prioritisation of dividend returns over the long-term environmental protection of places like Windermere" says Matt Staniek from Save Windermere.

"The bill payer has paid for a service that has never fully been provided, and the illegality demonstrates that for all to see."

Over the next five years bills in the United Utilities area will go up by 32% above the rate of inflation. On average that will mean a rise of £86 for the year that starts in April.

Louise Beardmore said the rises will fund the "largest investment in water and wastewater infrastructure in over 100 years".

For Windermere that's set to mean nine wastewater treatment works, including two that were included in the campaigners' analysis being upgraded and a reduction in the number of overflows discharging into the lake.

Read the full story here.
Photos courtesy of

Environmental Agency Denies Petition to Designate Big Hole River as Impaired by Nutrient Pollution

Montana’s environmental regulator has denied a petition to designate the Big Hole River as impaired by nitrogen and phosphorus

Montana’s environmental regulator has denied a petition to designate the Big Hole River as impaired by nitrogen and phosphorus, throwing a wrench in environmentalists’ efforts to put the blue-ribbon fishery on a “pollution diet.”Upper Missouri Waterkeeper and the Big Hole River Foundation contend that excess nutrients are creating regular summertime algal blooms that can stretch for more than a mile, robbing fish and the macroinvertebrate bugs they eat of the oxygen they need to thrive. The groups argue in the petition they sent to the Montana Department of Environmental Quality last month that an impairment designation would direct the agency to identify and work to reduce the river’s pollution sources in an effort to rebalance the river’s aquatic ecosystem.On April 14, about a month after receiving the 32-page petition, DEQ wrote that it “cannot grant” the group’s petition. The agency’s letter doesn’t quibble with the groups’ findings, which were detailed in a five-year data collection effort. Instead, the agency suggested that legislation passed in 2021 has tied its hands. “As a result of Senate Bill 358, passed during the 2021 Legislative Session … DEQ is unable to base nutrient assessment upon the numeric nutrient criteria,” the letter, signed by DEQ Director Sonja Nowakowski, reads. In an April 23 conversation with Montana Free Press, Upper Missouri Waterkeeper Executive Director Guy Alsentzer criticized the agency’s decision, arguing that it did not use the best available science and applied “illogical and disingenuous” reasoning in its denial. “EPA already took action and struck down Senate Bill 358 from the 2021 session,” Alsentzer said, referencing federal regulators’ oversight of state laws and rules governing water quality. “Numeric criteria are applicable.”A spokesperson for the EPA confirmed Alsentzer’s assertion, writing in an April 24 email to MTFP that numeric nutrient standards for nitrogen and phosphorus the agency approved a decade ago “remain in effect for Clean Water Act purposes” and will remain so “unless or until the EPA approves the removal of the currently applicable numeric nutrient criteria and approves revised water quality standards.”A DEQ spokesperson did not directly answer MTFP’s questions about what water quality standards DEQ is using to assess Montana waterways and determine whether permittees are complying with state and federal regulations.The agency wrote in an email that no permitted pollution sources under its regulatory oversight are discharging into the Big Hole, suggesting that its enforcement role is limited. The agency also wrote that an impairment designation is not required to implement water quality improvement projects such as creating riparian buffers, improving forest roads, or creating shaded areas. “Watershed partners may begin actively working on nonpoint source pollution reduction projects at any time,” DEQ spokesperson Madison McGeffers wrote to MTFP. “There is nothing standing in the way of starting work on these types of projects to improve water quality. In fact, the Big Hole River Watershed Committee is actively implementing its Watershed Restoration Plan with funds and support from DEQ Nonpoint Source & Wetland Section’s 319 program.”Alsentzer countered that a science-based cleanup plan and greater accountability will benefit the Big Hole regardless of whether nutrients are flowing into the river from a pipe or entering via more diffuse and harder-to-regulate channels.“You can’t get to that if you don’t recognize that you’ve got a problem we need to solve,” he said, adding that an impairment designation “unlocks pass-through funding to the tune of millions of dollars.”Addressing manmade threats to the Big Hole should be a priority for DEQ, given local communities’ economic reliance on a healthy river, he added.“It’s just a real tragic state of affairs when you have a blue-ribbon trout fishery in a very rural county that’s essentially having its livelihood flushed down the drain because we can’t get our agencies to actually implement baseline river protections (and) use science-based standards,” Alsentzer said. “When people try to do the work for the agency and help them, they’re getting told to go pound sand. I think that’s wrong.”Two years ago, Montana Fish, Wildlife and Parks biologists recorded historically low numbers of brown trout along some stretches of the Big Hole. Anglers and conservationists floated a number of possible contributing factors, ranging from pathogens and drought conditions to angling pressure and unmitigated pollution. Save Wild Trout, a nonprofit formed in 2023 to understand which factors merit further investigation, described the 2023 southwestern Montana fishery “collapse” as a “canary in the coal mine moment.”In response to the 2023 population slump, Gov. Greg Gianforte announced the launch of a multiyear research effort on Jefferson Basin rivers that FWP is coordinating with Montana State University. Narrative Standards For ‘Undesirable Aquatic Life’ DEQ’s letter to Upper Missouri Waterkeeper and the Big Hole River Foundation leaves open the possibility of a future impairment designation based on narrative water quality standards. After mentioning the 2021 legislation, Nowakowski wrote that the agency reviewed the submitted data “along with other readily available data, in consideration of the state’s established narrative criteria.”The letter goes on to outline the additional material petitioners would need to submit for the agency to evaluate an impairment designation using narrative criteria, which establish that surface waters must be “free from substances” that “create conditions which produce undesirable aquatic life.”In an April 22 letter, Upper Missouri Waterkeeper and the Big Hole River Foundation addressed the petition denial in two parts. First, the groups argued that numeric nutrient standards apply. Second, they resubmitted material — photos, emails, a macroinvertebrate report, and “Aquatic Plant Visual Assessment Forms” — to support an impairment designation under the looser narrative standards. “We encourage DEQ to do the right thing, use all available science to determine the Big Hole River impaired for nutrients, and commit to working with petitioners and other (stakeholders) in addressing the pollution sources undermining this world-class waterway and harming the diverse uses it supports,” the letter says. Alsentzer noted that he has set up a meeting with the EPA to discuss DEQ’s treatment of the petition and its description of applicable water quality standards.The dispute over numeric nutrient standards comes shortly after the Legislature passed another bill seeking to repeal them. Any day now, Gianforte is expected to sign House Bill 664, which bears a striking similarity to 2021’s Senate Bill 358. HB 664 has garnered support from Nowakowski, who described it as a “time travel” bill that will return the state to “individual, site-by-site” regulations in lieu of more broadly applicable numeric standards. This story was originally published by Montana Free Press and distributed through a partnership with The Associated Press.Copyright 2025 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.Photos You Should See - Feb. 2025

Supreme Court justices consider reviving industry bid to ax California clean car rule

The Supreme Court on Wednesday heard oral arguments in a case that could revive a bid by fuel producers to ax California’s clean car standards. The court was not considering the legality of the standards themselves, which ​​require car companies to sell new vehicles in the state that produce less pollution — including by mandating...

The Supreme Court on Wednesday heard oral arguments in a case that could revive a bid by fuel producers to ax California’s clean car standards. The court was not considering the legality of the standards themselves, which ​​require car companies to sell new vehicles in the state that produce less pollution — including by mandating a significant share of cars sold to be electric or hybrid.  Instead, the Supreme Court was considering whether the fuel industry had the authority to bring the lawsuit at all. A lower court determined that the producers, which include numerous biofuel companies and trade groups representing both them and the makers of gasoline, did not have standing to bring the case. Some of the justices were quiet, so it’s difficult to predict what the ultimate outcome of the case will be. However, others appeared critical of the federal government and California’s arguments that the fuel producers do not have the right to bring a suit. Justice Brett Kavanaugh in particular noted that the Environmental Protection Agency (EPA) itself did not initially try to have the case tossed on that basis.  “Isn't that a tell here? I mean, EPA, as you, of course, know, routinely raises standing objections when there's even — even a hint of a question about it,” Kavanaugh said.  The fuel producers argued that while it was technically the auto industry that was being regulated, the market was being “tilted” against them as well by California’s rule, which was also adopted by other states. The EPA and California have argued that the fuel producers are arguing on the basis of outdated facts and a market that has shifted since the rule was first approved by the EPA in 2013.  The EPA needs to grant approval to California to issue such rules. The approval was revoked by the Trump administration and later reinstated in the Biden administration.  If the justices revive the currently dismissed case, lower courts would then have to decide whether to uphold the California rule — though the underlying case could eventually make its way to the high court as well.  Meanwhile, California has since passed subsequent standards that go even further — banning the sale of gas-powered cars in the state by 2035. That rule was approved by the Biden administration — though Congress may try to repeal it.

EPA fires or reassigns hundreds of staffers

The Environmental Protection Agency plans to fire or reassign more than 450 staffers working on environmental justice issues, it said Tuesday.Why it matters: The large-scale changes could effectively end much of the EPA's work tackling pollution in historically disadvantaged communities.It's part of the Trump administration's effort to vastly shrink the federal workforce. EPA has around 15,000 employees.Driving the news: EPA notified roughly 280 employees that they will be fired in a "reduction in force." Another 175 who perform "statutory functions" will be reassigned.The employees come from the Office of Environmental Justice and External Civil Rights, the Office of Inclusive Excellence, and EPA regional offices."EPA is taking the next step to terminate the Biden-Harris Administration's Diversity, Equity, and Inclusion and Environmental Justice arms of the agency," a spokesperson said.Between the lines: The firings will likely see challenges from congressional Democrats and the employees themselves.EPA had previously put many environmental justice staffers on administrative leave.Administrator Lee Zeldin, during a Monday news conference, defended the agency's broader efforts to cut environmental justice grant programs, arguing the money is ill-spent."The problem is that, in the name of environmental justice, a dollar will get secured and not get spent on remediating that environmental issue," he said.

The Environmental Protection Agency plans to fire or reassign more than 450 staffers working on environmental justice issues, it said Tuesday.Why it matters: The large-scale changes could effectively end much of the EPA's work tackling pollution in historically disadvantaged communities.It's part of the Trump administration's effort to vastly shrink the federal workforce. EPA has around 15,000 employees.Driving the news: EPA notified roughly 280 employees that they will be fired in a "reduction in force." Another 175 who perform "statutory functions" will be reassigned.The employees come from the Office of Environmental Justice and External Civil Rights, the Office of Inclusive Excellence, and EPA regional offices."EPA is taking the next step to terminate the Biden-Harris Administration's Diversity, Equity, and Inclusion and Environmental Justice arms of the agency," a spokesperson said.Between the lines: The firings will likely see challenges from congressional Democrats and the employees themselves.EPA had previously put many environmental justice staffers on administrative leave.Administrator Lee Zeldin, during a Monday news conference, defended the agency's broader efforts to cut environmental justice grant programs, arguing the money is ill-spent."The problem is that, in the name of environmental justice, a dollar will get secured and not get spent on remediating that environmental issue," he said.

EPA firing 280 staffers who fought pollution in overburdened neighborhoods

The Environmental Protection Agency (EPA) will fire 280 staffers who worked on tackling pollution in overburdened and underserved communities and will reassign another 175. These staffers worked in an area known as “environmental justice,” which helps communities that face a disproportionate amount of pollution exposure, especially minority or low-income communities.  The EPA has framed its...

The Environmental Protection Agency (EPA) will fire 280 staffers who worked on tackling pollution in overburdened and underserved communities and will reassign another 175. These staffers worked in an area known as “environmental justice,” which helps communities that face a disproportionate amount of pollution exposure, especially minority or low-income communities.  The EPA has framed its efforts to cut these programs — including its previous closure of environmental justice offices — as part of a push to end diversity programming in the government. Supporters of the agency's environmental justice work have pointed out that Black communities face particularly high pollution levels and that the programs also help white Americans, especially if they are poor.  “EPA is taking the next step to terminate the Biden-Harris Administration’s Diversity, Equity, and Inclusion and Environmental Justice arms of the agency,” an EPA spokesperson said in a written statement.   “Today, EPA notified diversity, equity, and inclusion and environmental justice employees that EPA will be conducting a Reduction in Force,” the spokesperson said. “The agency also notified certain statutory and mission essential employees that they are being reassigned to other offices through the ‘transfer of function’ procedure also outlined in [the Office of Personnel Management’s] Handbook and federal regulations” The firings will be effective July 31, according to E&E News, which first reported that they were occurring. The news comes as the Trump administration has broadly sought to cut the federal workforce. The administration has previously indicated that it planned to cut 65 percent of the EPA’s overall budget. It’s not clear how much of this will be staff, though according to a plan reviewed by Democrat House staff, the EPA is considering the termination of as many as about 1,100 employees from its scientific research arm.  Meanwhile, as part of their reductions in force, other agencies including the Department of Health and Human Services and the Department of Veterans Affairs have fired tens of thousands of staffers. The EPA is smaller than these agencies, with a total of more than 15,000 employees as of January.  Nearly 170 environmental justice staffers were previously placed on paid leave while the agency was “in the process of evaluating new structure and organization.”

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