The Jumbles Reservoir is a heavily modified, high

alkalinity Alkalinity (from ar, القلوي, al-qaly, lit=ashes of the saltwort) is the capacity of water to resist acidification. It should not be confused with basicity, which is an absolute measurement on the pH scale. Alkalinity is the strength of ...

, shallow

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 ...

North West England North West England is one of nine official regions of England and consists of the ceremonial counties of England, administrative counties of Cheshire, Cumbria, Greater Manchester, Lancashire and Merseyside. The North West had a population of ...

. It lies in

Jumbles Country Park Jumbles Country Park is a country park in Bolton, Greater Manchester. It lies on the southern edge of the West Pennine Moors. It was opened on 11 March 1971 by Queen Elizabeth II. The park is now owned and managed by United Utilities United Ut ...

, in the valley of

Bradshaw Brook Bradshaw Brook is a river draining parts of Lancashire and Greater Manchester in Northern England. Starting life as Cadshaw Brook draining a valley named Green Lowe Clough on Turton Moor, the brook feeds the Turton and Entwistle Reservoir and W ...

, partly in the

Metropolitan Borough of Bolton '')'' , image_skyline =Bolton Town Hall.jpg , imagesize = 250px , image_caption = Bolton Town Hall, the seat of Bolton Council , image_blank_emblem = Coat of arms of Bolton Metropolitan Borough Council.png , blank_emblem_type = Coat of Arms of ...

Greater Manchester Greater Manchester is a metropolitan county and combined authority, combined authority area in North West England, with a population of 2.8 million; comprising ten metropolitan boroughs: City of Manchester, Manchester, City of Salford, Salford ...

, and partly in

Blackburn with Darwen Blackburn with Darwen is a borough and unitary authority area in Lancashire, North West England. It consists of the industrial town of Blackburn and the market town of Darwen including other villages around the two towns. Formation It was fou ...

Lancashire Lancashire ( , ; abbreviated Lancs) is the name of a historic county, ceremonial county, and non-metropolitan county in North West England. The boundaries of these three areas differ significantly. The non-metropolitan county of Lancashi ...

. It was opened on 11 March 1971 by

Queen Elizabeth II Elizabeth II (Elizabeth Alexandra Mary; 21 April 1926 – 8 September 2022) was Queen of the United Kingdom and other Commonwealth realms from 6 February 1952 until Death and state funeral of Elizabeth II, her death in 2022. She was queen ...

for the then Bolton Corporation Waterworks (since

privatisation Privatization (also privatisation in British English) can mean several different things, most commonly referring to moving something from the public sector into the private sector. It is also sometimes used as a synonym for deregulation when ...

the reservoir is now owned by

United Utilities United Utilities Group plc (UU), the United Kingdom's largest listed water company, was founded in 1995 as a result of the merger of North West Water and NORWEB. The group manages the regulated water and waste water network in North West Englan ...

). The reservoir's original purpose was to guarantee water for the Croal- Irwell river system and the associated industries. At the most northernly point of the reservoir is an old disused quarry, (Jumbles Quarry) it is now flooded with water due to the presence of the reservoir therefore making it impossible to tell that it is even there! The name Jumbles appeared during the 19th century, it is a variation of ''dumbles''; a northern term for a ravine like valley with wooded sides down which tumbles a fast flowing stream. This reservoir is also fed from the Wayoh and the Turton and Entwistle reservoirs.

References

External links

Picture of Jumbles Reservoir
{{authority control Drinking water reservoirs in England Geography of the Metropolitan Borough of Bolton Reservoirs in Greater Manchester