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Impounding reservoirs

South West Water operates 20 impounding reservoirs throughout the region.

Details of which are shown below.

Name
Completed
Type
Net Capacity (Ml)*
Roadford
1989
Embankment
34500
Colliford
1983
China clay waste embankment
28540
Wimbleball
1979
Concrete buttress
21320
Stithians
1965
Concrete gravity and arch
5205
Burrator
1898
Masonry gravity
4210
Siblyback
1968
Concrete gravity
3182
Meldon
1972
Concrete gravity
3020
Fernworthy
1942
Masonry gravity
1638
Wistlandpound
1956
Earth embankment
1550
Upper Tamar Lake
1975
Concrete gravity
1335 
Argal
1941
Concrete gravity
1313
Drift
1961
Concrete gravity
1310
Avon
1957
Concrete gravity
1290
Crowdy
1973
Concrete gravity
1041
Kennick
1884
Earth embankment
791
Venford
1907
Masonry gravity
780
Trenchford
1907
Earth embankment
686
Porth
1960
Concrete gravity
514
Tottiford
1861
Earth embankment
377 
College
1906
Earth embankment
295


*Ml is an abbreviation for one megalitre or one million litres. (220,000 gallons).
Related Websites
SW Lakes Trust
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