List_of_reservoirs_in_the_United_Kingdom_by_volume

List of reservoirs in the United Kingdom

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The following page lists the reservoirs in the United Kingdom.

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[Parliamentary_approval-2] Parliamentary approval of scheme

[Associated_inception-3] Associated with inception of North of Scotland Hydro Electric Board

[HED_(Scotland)_Act_1943-4] Start of hydroelectric production - Hydro Electric Development (Scotland) Act 1943

[Associated_act-5] Associated with act that gave an authority powers

[Dubious-6] The Environmental Information Data Centre source used states the sources they used could be dubious for parts (or this part) of this entry

[First_Hansard-7] First mention of scheme on Hansard

[UK-1] [1]
Durant, M.J.; Counsell, C.J. (20 July 2018), Inventory of reservoirs amounting to 90% of total UK storage, NERC EDS Environmental Information Data Centre, doi:10.5285/f5a7d56c-cea0-4f00-b159-c3788a3b2b38, retrieved 10 April 2023 Data downloadable with registration

[8] [2]
Elan dams: Specifications Archived 20 February 2013 at the Wayback Machine at Elan Valley Trust official website. Accessed 27 November 2013

[Chao-9] [3]
Environment Agency. "Public Register of Reservoirs". {{cite journal}}: Cite journal requires |journal= (help) Compiles a database of reservoirs in England and Wales.

[10] [4]
"Raw Water Storage Levels 15 August 2022 | Reservoir levels | About Us | Severn Trent Water". www.stwater.co.uk. Retrieved 2022-08-20.

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Rank	Name	Owner	Location	Year Built	Nominal volume m³	Surface area m²	Ref.
1	Kielder Water	Northumbrian Water	Northumberland	1981	199,000,000	10,860,000	^[3]
2	Rutland Water	Anglian Water	Rutland	1976	124,000,000	12,600,000	^[3]
3	Haweswater	United Utilities	Cumbria	1935	84,840,000	3,900,000	^[3]
4	Llyn Celyn	Welsh Water	Gwynedd	1965	80,930,850	3,300,000	^[3]
5	Llyn Brianne	Welsh Water	Powys	1972	64,400,000	2,096,000	^[3]
6	Llyn Brenig	Welsh Water	Denbighshire	1976	61,500,000	3,725,000	^[3]
7	Lake Vyrnwy	Severn Trent Water	Powys	1888	59,700,000	4,536,000	^[3]
8	Grafham Water	Anglian Water	Cambridgeshire	1965	57,800,000	6,280,000	^[3]
9	Clywedog Reservoir	Severn Trent Water	Powys	1967	49,940,000	2,490,000	^[3]
10	Cow Green Reservoir	Northumbrian Water	Teesdale	1971	40,914,000	3,120,000	^[3]
11	Thirlmere	United Utilities	Cumbria	1894	40,714,999	3,290,000	^[3]
12	Claerwen	Welsh Water	Powys	1952	40,307,000	2,630,000	^[3]
13	Derwent Reservoir	Northumbrian Water	County Durham	1965	40,060,000	4,050,000	^[3]
14	Roadford Lake	South West Water	Devon	1989	36,910,000	2,987,000	^[3]
15	Carsington Water	Severn Trent Water	Derbyshire	1992	36,331,000^[4]	3,000,000
16	Caban Coch	Welsh Water	Powys	1904	35,531,000	2,023,000	^[3]
17	Llyn Trawsfynydd	Magnox Ltd	Gwynedd	1928	33,190,000	4,800,000	^[3]
18	Nant y Moch	Statkraft	Ceredigion	1964	32,564,000	2,630,000	^[3]
19	Queen Mother Reservoir	Thames Water	Greater London	1976	31,492,000	1,922,000	^[3]
20	Bewl Water	Southern Water	East Sussex	1975	31,000,000	3,120,000	^[3]
21	Queen Mary Reservoir	Thames Water	Greater London	1931	30,363,000	2,863,000	^[3]
22	Colliford Lake	South West Water	Cornwall	1983	29,100,000	3,660,000	^[3]
23	Ladybower Reservoir	Severn Trent Water	Derbyshire	1943	27,800,000	2,100,000	^[3]
24	Hanningfield Reservoir	Essex and Suffolk Water	Essex	1957	27,721,000	3,536,000	^[3]
25	Wraysbury Reservoir	Thames Water	Greater London	1970	26,910,000	2,023,000	^[3]
26	Abberton Reservoir	Essex and Suffolk Water	Essex	1939	25,721,000	4,900,000	^[3]
27	Llandegfedd Reservoir	Welsh Water	Monmouthshire	1965	24,660,000	1,760,445	^[3]
28	Draycote Water	Severn Trent Water	Warwickshire	1969	22,730,000	2,430,000	^[3]
29	Grimwith Reservoir	Yorkshire Water	North Yorkshire	1983	22,200,000	1,500,000	^[3]
30	Wimbleball Lake	South West Water	Somerset	1979	21,541,000	1,620,000	^[3]
31	Chew Valley Lake	Bristol Water	Somerset	1956	20,457,000	4,856,000	^[3]
32	Balderhead Reservoir	Northumbrian Water	County Durham	1961	19,618,000	1,170,000	^[3]
33	King George VI Reservoir	Thames Water	Greater London	1947	18,732,000	1,420,000	^[3]
34	Blithfield Reservoir	South Staffordshire Water	Staffordshire	1953	18,172,000	3,190,000	^[3]
35	Pitsford Water	Anglian Water	Northamptonshire	1956	17,545,000	3,030,000	^[3]
36	Queen Elizabeth II Reservoir	Thames Water	Greater London	1962	16,809,000	1,283,000	^[3]
37	William Girling Reservoir	Thames Water	Greater London	1951	16,500,000	1,350,000	^[3]
38	Pontsticill Reservoir	Welsh Water	Powys	1927	15,640,000	1,412,000	^[3]
39	Selset Reservoir	Northumbrian Water	County Durham	1960	15,320,000	1,110,000	^[3]
40	Alwen Reservoir	Welsh Water	Conwy	1921	14,564,200	1,490,000	^[3]
41	King George V Reservoir	Thames Water	Greater London	1912	13,970,000	1,720,000	^[3]
42	Foremark Reservoir	Severn Trent Water	Derbyshire	1977	13,193,486	930,000	^[3]
43	Usk Reservoir	Welsh Water	Powys	1955	12,253,000	1,160,000	^[3]
44	Stocks Reservoir	United Utilities	Lancashire	1932	12,006,000	1,390,000	^[3]
45	Talybont Reservoir	Welsh Water	Powys	1939	11,668,000	1,272,000	^[3]
46	Covenham Reservoir	Anglian Water	Lincolnshire	1972	10,900,000	882,000	^[3]
47	Catcleugh Reservoir	Northumbrian Water	Northumberland	1905	10,480,000	987,000	^[3]
48	Scar House Reservoir	Yorkshire Water	North Yorkshire	1936	10,069,000	700,000	^[3]

List_of_reservoirs_in_the_United_Kingdom_by_volume

List of reservoirs in the United Kingdom

Reservoirs accounting for 90% storage

Largest in England and Wales (2012)

See also

Notes

References

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