§ Mr. Wigleyasked the Secretary of State for Wales if he will list in the OFFICIAL REPORT all water reservoirs in Wales with a capacity of between 1,000 and 5,000 million gallons; and if he will give the corresponding capacity, average daily output, date of construction and responsible water authority of each of these.
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§ Mr. John MorrisThis information is shown in the following table:
RESERVOIRS OF BETWEEN 1,000 AND 5,000 m.g. CAPACITY IN WALES Name of Reservoir Date constructed Capacity (million gallons) Reliable yield (m.g.d.) Reservoir owned by Alaw … 1965 1,600 6.2 Welsh National Water Development Authority Llyn Cowlyd … 1922 2,750 13.5 Welsh National Water Development Authority Talybont … 1939 2,567 13.2 Welsh National Water Development Authority Llysyfran … 1971 2,004 13.5 Welsh National Water Development Authority Taf Fechan … 1927 3,350 18.0 Welsh National Water Development Authority Usk … 1955 2,680 9.0 Welsh National Water Development Authority Alwen … 1916 3,200 7.5 Welsh National Water Development Authority Llwyn On (Beacons Group) … 1926 1,150 See Note (1) Welsh National Water Development Authority Pen-y-Garreg (Elan Group) … 1904 1,330 See Note (2) Welsh National Water Development Authority Craig Goch (Elan Group) … 1904 2,028 See Note (2) Welsh National Water Development Authority Notes:
(1) Combined reliable yield of Beacons Group is 13 million gallons per day (m.g.d.).
(2) Combined reliable yield of Elan Group is 75 million gallons per day.