Stain Hill Reservoirs

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Walton on Thames from the Air (geograph 2668393).jpg
Walton on Thames from the Air (geograph 2668393).jpg
The pair of wood and grass-lined reservoirs. The Thames and adjoining trees can be traced across the foreground.

The Stain Hill Reservoirs in London, England with embankments occupy 0.175 square kilometres (43 acres). They are a pair which sit high between others; Kempton Nature Reserve; riverside houses in Sunbury-on-Thames; and a low area of flood meadow to the west alongside the closing stretch of the Port Lane (or Felthamhill) Brook. Other nearby settlements are Molesey, Hampton and Hanworth.

Contents

History and use

Fifteen large Victorian houses with gardens stood on the site, including Brook House, which were demolished c. 1910. [1] These storage lakes were built by the Southwark and Vauxhall Waterworks Company and in use are managed by Thames Water.

Use has changed from pre-treatment water storage to first-stage run-off settling of suspended solids from the water filter beds at the adjacent works. This unused water flows in pipes to Sunnyside Reservoir for further settlement from which pipes discharge it to a lower reach of the river Thames than from which it was taken.

Species

The lakes narrowly exceed the embankments in size and have significant populations of moulting and wintering waterfowl, particularly where the water is shallow and marginal vegetation has developed. There are nationally significant numbers of shoveler and gadwall in late winter. Dry concrete upper banks support nationally-scarce "tower mustard" (arabis glabra), a UK Biodiversity Action Plan Priority species. The site's other regionally uncommon plants include:

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References

  1. Ordnance Survey Map of Surrey VI.14, Revised: 1894, Published: 1897
  2. London Wildfowl

Coordinates: 51°24′41″N0°23′06″W / 51.4113°N 0.3849°W / 51.4113; -0.3849