Thames Water hit with largest-ever fine issued by regulator Ofwat | Mo

Thames Water, the UK’s biggest water provider, has been hit by a record fine by regulator Ofwat.

The company has been fined £122.7m following Ofwat’s “biggest and most complex” investigation.

It follows two investigations related to Thames Water’s wastewater operations and dividend payouts.

Of the total fine, £104.5m – 9% of Thames Water‘s turnover – has been levied for breaches of wastewater rules – just below the maximum 10% of turnover that Ofwat could have applied.

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Another £18.2m penalty will be paid for breaches of dividend payment rules.

It is the first time Ofwat has fined a company for shareholders’ payments which do not “properly reflect” its performance for customers and the environment.

The fine will be paid by Thames Water and its shareholders, Ofwat said, rather than customers.

‘Unacceptable’ environmental impact

The regulator was highly critical of Thames Water’s handling of wastewater, describing it as having an “unacceptable” impact on the environment.

Its investigation of treatment works and the wider wastewater network uncovered failings which “amounted to a significant breach of the company’s legal obligations” and caused that unacceptable environmental impact.

The company announced a 40% spike in sewage spills in December for the period from January to September 2024.

The fine was so large because Ofwat’s chief executive, David Black, said Thames Water “failed to come up with an acceptable redress package that would have benefited the…