South West Water Fined £7.9m for Six Years of Sewage Pollution

South West Water has been ordered to pay almost £8m following convictions for widespread untreated sewage discharges spanning six years across Devon and Cornwall. The utility company pleaded guilty to 18 pollution-related offences at Plymouth Magistrates' Court after an investigation by the Environment Agency uncovered incidents between 2015 and 2021 affecting Harlyn, Bodmin, Playing Place, and Polperro in Cornwall, as well as Plymouth in Devon.

Judge Jo Matson characterised the pollution as

horrendous

and

very significant

during sentencing. The court imposed a total fine of £7,867,733, with the judge taking into account the company's guilty pleas and remedial steps it had undertaken.

What were the specific violations?

Of the 18 charges, 17 related to illegal discharge activities involving sewage releases, while one charge concerned the company's failure to implement reasonable corrective action following a malfunction at a sewage pumping station. According to regional news coverage, untreated sewage was discharged onto Harlyn Bay on 231 separate occasions between January 2016 and July 2021 alone. At Bodmin's sewage treatment works, 336 illegal sewage leaks were documented, causing harm to the River Camel, which serves as a habitat for protected Atlantic salmon.

South West Water acknowledged in a statement that the case concerned

historic matters between 2015 and 2021

and noted that the majority of spills resulted from

the use of overflows in storm conditions

.

What improvements has the company made?

The water company stated that

significant improvements

have been implemented at the locations where pollution occurred. It disclosed that it is investing £760m to address storm overflows and has achieved a 17% reduction in spills over the past year, with spill duration declining by 25%. The company expressed its commitment to

deliver record levels of investment to achieve cleaner rivers and seas across the South West by 2040, a decade ahead of national targets

.

This case follows a pattern of enforcement action against major water utilities. In 2023, South West Water received a £2.15m fine for 13 pollution offences at sites in Devon and Cornwall, alongside orders to pay £280,000 in costs and a £170 surcharge. The latest conviction reflects ongoing regulatory scrutiny of the sector's environmental performance.

South West Water apologised for the historical incidents, stating:

We apologise for what happened in the past.

Key Facts

• South West Water was fined £7,867,733 for 18 pollution offences committed between 2015 and 2021
• Harlyn Bay experienced 231 untreated sewage discharges; Bodmin's sewage works recorded 336 illegal leaks affecting the River Camel
• The company is investing £760m in storm overflow infrastructure and has reduced spill incidents by 17% in the past year
• This represents the second major fine for the company in three years, following a £2.15m penalty in 2023