Despite returning to profit after hiking bills 40%, the deeply troubled company is far from out of the woods.
It comes as the firm says it has completed a £26.4m project at Burstow sewage treatment works.
About 300 bathtubs of concrete is being discharged into sewers each year, Thames Water says.
Fulham Reach Boat Club recorded levels more than 60 times the threshold for suitable bathing water.
Village residents criticise Thames Water after saying they have been left without water for 48 hours.
Thames Water wants to swap millions of litres of river water with wastewater during dry weather.
The environment secretary says the deal does not do enough for consumers or the environment.
Thames Water's lenders have submitted a new rescue plan to save the firm, but how did it end up in this state?
Carmela Donovan, who is classed as vulnerable, says she is losing sleep due to the stress.
