Water quality sewage upgrade project at half-way point

A major sewage upgrade project which aims to increase the capacity of London's treatment works by 50% is half-way towards completion, according to Thames Water.

Modgen treatment works

Modgen treatment works

The £140m works at Modgen sewage works in Isleworth, London started in August 2010 as part of a London-wide scheme to invest £675m in all five sewage works in the capital.

According to Thames Water, these upgrades will increase the amount of sewage the sites can treat. This is expected to reduce the need for storm tanks and limit storm discharges into the river.

It is anticipated the work will also improve the standard of sewage treatment at each of the works, helping Thames Water improve water quality in the Thames.

Thames Water head of programme delivery, Nick Fawcett, said: "We still have a 200-strong team working on the site but the focus of the activity is now shifting from civil engineering - such as building foundations and tanks, to mechanical engineering and electrical installation, which will help to get the tanks up and running."

The work is expected to complete by March 2013.

Carys Matthews


| wastewater treatment | water improvements


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