East Warwick Reservoir is located in the London Borough of Waltham Forest

London Borough of Waltham Forest

The London Borough of Waltham Forest is in northeast London, England. Officially, it forms part of Outer London as it borders Essex. However, it can be seen that the NE London boundary does not extend far compared to elsewhere in the city...

 at Walthamstow

Walthamstow

Walthamstow is a district of northeast London, England, located in the London Borough of Waltham Forest. It is situated north-east of Charing Cross...

. The storage reservoir is part of the Lee Valley Reservoir Chain

Lee Valley Reservoir Chain

The Lee Valley Reservoir Chain is located in the Lee Valley, and comprises 13 reservoirs that supply drinking water to London.- Reservoirs :The following waters are located in the London Borough of Enfield and are known collectively as the Chingford Reservoirs, which are a Site of Special...

 and supplies drinking water to London

London

London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

. The reservoir is owned by Thames Water

Thames Water

Thames Water Utilities Ltd, known as Thames Water, is the private utility company responsible for the public water supply and waste water treatment in large parts of Greater London, the Thames Valley, Surrey, Gloucestershire, Wiltshire, Kent, and some other areas of in the United Kingdom...

.

History

The reservoir was constructed on marshland in the mid–19th century by the East London Waterworks Company

East London Waterworks Company

The East London Waterworks Company was one of eight private water companies in London absorbed by the Metropolitan Water Board in 1904.The company was founded by Act of Parliament in 1806, and in 1845 the limits of supply were described as "all those portions of the Metropolis, and its suburbs,...

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Ecology

The water is a Site of Special Scientific Interest

Site of Special Scientific Interest

A Site of Special Scientific Interest is a conservation designation denoting a protected area in the United Kingdom. SSSIs are the basic building block of site-based nature conservation legislation and most other legal nature/geological conservation designations in Great Britain are based upon...

 (SSSI). It is particularly favoured by the tufted duck

Tufted Duck

The Tufted Duck, Aythya fuligula, is a medium-sized diving duck with a population of close to one million birds.- Description :The adult male is all black except for white flanks and a blue-grey bill. It has an obvious head tuft that gives the species its name.The adult female is brown with paler...

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Recreation

The reservoir is popular with birdwatchers, naturalist

Naturalist

Naturalist may refer to:* Practitioner of natural history* Conservationist* Advocate of naturalism * Naturalist , autobiography-See also:* The American Naturalist, periodical* Naturalism...

s and anglers

Fisherman

A fisherman or fisher is someone who captures fish and other animals from a body of water, or gathers shellfish. Worldwide, there are about 38 million commercial and subsistence fishermen and fish farmers. The term can also be applied to recreational fishermen and may be used to describe both men...

, but access is by permit only.

The water also functions as a trout

Trout

Trout is the name for a number of species of freshwater and saltwater fish belonging to the Salmoninae subfamily of the family Salmonidae. Salmon belong to the same family as trout. Most salmon species spend almost all their lives in salt water...

fishery.