Deephams Sewage Treatment Works

Deephams Sewage Treatment Works
The entrance to Deephams Sewage Treatment Works at Picketts Lock Lane
Deephams Sewage Treatment Works shown within Greater London
Type	Waste Water Treatment Works
Location	Edmonton, Greater London, England
Coordinates	51°37′34″N 0°02′02″W / 51.626°N 0.034°W / 51.626; -0.034Coordinates: 51°37′34″N 0°02′02″W / 51.626°N 0.034°W / 51.626; -0.034
Area	86 acres (35 ha)
Operated by	Thames Water

Deephams Sewage Treatment Works is a sewage treatment facility close to Picketts Lock, Edmonton, England. The outflow discharges via Pymmes Brook into the River Lee Navigation at Tottenham Lock. The treatment works was upgraded in 2012/3.

The treatment works is located at grid reference TQ 359 936. It is bordered by the A1055 road and the Lea Valley Line railway to the west, Lee Valley golf course to the north, the William Girling Reservoir and the Lee Navigation to the east, and an industrial park to the south.

Treatment of sewage in the area began in the late nineteenth century. The 1881 Ordnance Survey map shows open fields and Deephams farm between the railway and the navigation, but by 1896, housing has begun to appear. Edmonton Sewage Works was built on a site to the west of the railway, and the farm had become Edmonton sewage farm. The works included three rectangular filter beds and a large building. By 1914, both facilities were owned by Edmonton Urban District, and the farm had expanded to include a large irregular-shaped filter bed. Major expansion had taken place by the 1930s, with humus tanks to the west, sludge beds to the north and filter beds to the east. In the middle was a sewage pumping station, and the complex was served by a network of tramways. A major expansion of the site commenced in 1939, but the onset of the Second World War resulted in the work being suspended until 1948. When work resumed, contracts were awarded to W. & C. French, Holland, Hannen & Cubitts and Marples Ridgway.