AFTER two years of work, the £140 million upgrade of Mogden Sewage Treatment Works in Isleworth is finally complete.
Thames Water embarked on the project in 2011 to enable site - which serves 1.9 million people - to effectively treat over 50 per cent more sewage in order to cope with heavy rainfall.
It will reduce the amount of storm sewage which overflows into the River Thames when there is too much rain for the old site to deal with and will make sure what goes into the Thames is much cleaner.
Over the past two months, Thames Water have been testing the new equipment to ensure it all worked effectively and finally it is ready.
The news will come as a relief for many residents who have had to put up with the works.
Matt Warburton, delivery manager for Mogden, said: "On behalf of the team, I’d like to say a big thank you for your patience and understanding throughout this important project."
Mogden's project team will remain at the works until the end of June to carry out the necessary fine tuning of the new works to ensure it runs seamlessly with the existing site.
Mr Warburton said in a newsletter to residents that the embankment surrounding the works will be finished in the next few weeks and was unfortunately delayed due to wet weather over the past few months.
The Mogden team will be holding their last informal drop-in session on Monday (13) from 5pm to 6:30 pm at Twickenham Stadium, Rugby House Door A. There will be cakes to celebrate finishing the works.
There will also be an open day to mark the completion of the project on June 22, details are to be confirmed.