The government has confirmed that measures to reduce sewage discharges from storm overflows will be put into law.

Earlier this year the government announced it was working with Philip Dunne MP on shared ambitions to tackle high levels of sewage in rivers, following the introduction of his Private Member’s Bill in 2020.

During wet weather, storm overflows act to prevent sewers becoming overloaded with a combination of sewage and rain and release diluted wastewater into rivers. However, their use has increased in recent years as climate change has led to greater rainfall and water infrastructure has not kept pace with population growth.

Reducing the reliance of water companies on storm overflows is seen as necessary to help cut pollution in waterways.

Government must publish plan by September 2022 to reduce sewage discharges from storm overflows

The government has confirmed that a number of key policies will be made law which will create three key duties to oversee some of the changes needed:

• a duty on government to publish a plan by September 2022 to reduce sewage discharges from storm overflows;
• a duty on government to report to Parliament on progress on implementing the plan; and
• a duty on water companies to publish data on storm overflow operation on an annual basis.

The latest measures build on the work already underway by the Storm Overflows Taskforce, set up in September 2020 to bring together government, the water industry, regulators and environmental NGOs to accelerate progress in this area.

Through the Taskforce, water companies have committed to increase the number of overflows they will improve over the next five years. This means a further 800 overflows will be investigated and nearly 800 improved between 2020 and 2025.

The government expects to consult on potential options for ways to eliminate harm from storm overflows to take forward later this year.

Announcing the new measures, Environment Minister Rebecca Pow said that putting new commitments to improve rivers into law is an important step forward to cut down the water sector’s reliance on storm overflows.

Philip Dunne, MP for Ludlow and Chair of the Environmental Audit Committee, commented:

“I introduced my Private Members Bill to help tackle the scourge of sewage discharges polluting our waterways. Due to the impact of the pandemic on the Parliamentary timetable, I have been working to encourage the Government to adopt the key principles of my Bill.

“I am delighted that the Environment Minister has honoured her pledge to seek a legislative route to give effect to the main objectives: from the Government updating Parliament on the progress it is making in reducing sewage discharges, to placing a duty on water companies to publish storm overflow data.”

“The Environmental Audit Committee is also holding an inquiry at present into measures to improve the water quality of our rivers, so I am also looking forward to the recommendations which emerge being able to inform the next stage of the Government’s work to improve water quality.”

EA Chair - vital water companies keep use of storm overflows to "an absolute minimum"

Chair of the Environment Agency Emma Howard Boyd said:

“We all have a responsibility to protect our water environment and I am pleased to see government accelerating the delivery on its pledge to drive further improvements and reduce the reliance of the water sector on storm overflows.

“While storm overflows play an important role in not overloading our sewers, it is vital that water companies strive to keep their use to an absolute minimum. Our changing climate will put more pressure on our drainage network so it’s great to see this commitment to action.”

“While today’s announcement sees the government take a leading role in driving forward the action needed to enhance the health of our rivers, the work of the Taskforce so far has also highlighted the importance of close collaboration - across government, industry, businesses and the public at large - to eliminate harm from storm overflows given the scale of the challenge and the time it will take to achieve.”

Mark Lloyd, Chief Executive of The Rivers Trust, welcomed the announcement from the government, which includes legal duties on the government and water companies.

“Delivering a plan will require contributions from the whole of society, in particular landowners, housing developers, highway constructors and homeowners, to divert clean water away from sewers. People also need to play their part by not flushing oil, sanitary products, nappies and other unflushables down drains and sewers where they cause blockages.

“This concerted action needs to be driven by the government with legislation and funding for infrastructure and public education.”