Mogden Sewage Treatment Works is one of the largest in the UK. It was built between 1931 and 1935 at a cost of £1.7m and covers an area of 55 hectares.

Over half of the power used by the plant is renewable energy that has been generated on site as part of the sewage treatment process.

Around 1.4 million people live in the area served by the works, and some of the wastewater has travelled over 20 miles by the time it reaches Mogden.

Many more people also work in this area, so in total the works serves around 1.9 million people.

We are improving Mogden to significantly reduce the number of times partially-treated sewage overflows into the River Thames when the works become overloaded after heavy rain. Please follow the link directly below to learn more.

• Mogden Sewage Treatment Works upgrades