Sunnyside Reservoir is a

reservoir A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including contro ...

forming part of the

Hampton Hampton may refer to: Places Australia *Hampton bioregion, an IBRA biogeographic region in Western Australia *Hampton, New South Wales *Hampton, Queensland, a town in the Toowoomba Region * Hampton, Victoria Canada * Hampton, New Brunswick *Ha ...

waterworks complex within the

London London is the capital and List of urban areas in the United Kingdom, largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary dow ...

borough of

Richmond-upon-Thames The London Borough of Richmond upon Thames () in southwest London forms part of Outer London and is the only London borough on both sides of the River Thames. It was created in 1965 when three smaller council areas amalgamated under the London ...

History

The reservoir was originally built by the

Southwark and Vauxhall Waterworks Company The Southwark and Vauxhall Waterworks Company was a utility company supplying water to parts of south London in England. The company was formed by the merger of the Southwark and Vauxhall water companies in 1845 and became part of the publicly ...

in 1896 for pre-treatment water storage. It has an area of 2.74 ha, is 35 ft (10.7 m) deep and has a capacity of 292 Megalitres. The walls of the reservoir are made from 3 ft (1 m) of puddle clay. The reservoir is now used as a settlement lagoon for washwater from the adjacent treatment works before the water is discharged back to the

River Thames The River Thames ( ), known alternatively in parts as the River Isis, is a river that flows through southern England including London. At , it is the longest river entirely in England and the second-longest in the United Kingdom, after the R ...

. The reservoir is now owned and managed by

Thames Water Thames Water Utilities Ltd, known as Thames Water, is a large private utility company responsible for the public water supply and waste water treatment in most of Greater London, Luton, the Thames Valley, Surrey, Gloucestershire, north Wiltsh ...

. There was an idea to build a bridge for cyclist and pedestrians over the river adjacent to the reservoir in 2002, but this was very expensive and not progressed.Surrey County Council
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References

Thames Water reservoirs Buildings and structures in the London Borough of Richmond upon Thames Geography of the London Borough of Richmond upon Thames Reservoirs in Surrey {{Surrey-geo-stub