HC Deb 17 April 1978 vol 948 cc32-3W
Mr. Wm. Ross

asked the Secretary of State for Northern Ireland (1) if he will publish a table in the Official Report showing the estimated maximum inflow to Lough Neagh in a 24-hour period and in a seven-day period in each of the last five years, and also showing the maximum outflow possible in a 24-hour and seven-day period;

(2) what would be the effect on the level of Lough Neagh of 1 in of rain in the catchment area, if the rainfall in a 24-hour period and the outflow was at its maximum during that period and for 24 hours and 48 hours thereafter;

(3) how many acres of arable land surrounding Lough Neagh would be flooded if the level of the lough were to rise to 51 ft, to 51 ft 6 in, to 52 ft, 52 ft 6 in and to 53 ft;

(4) how many millions of gallons of water are needed to raise the level of Lough Neagh 1 in; and how many days maximum outflow this represents;

(5) when he expects the programme of flow gauging stations for Lough Neagh to be completed; how many are now in operation and how many more are needed;

(6) what is the catchment area for Lough Neagh, in square miles and how much of this is in Northern Ireland and how much is in the Irish Republic.

Mr. Dunn

It is not possible to provide answers to these Questions in the time available. I shall reply to the hon. Member as soon as possible.