"Main river" has the meaning given by section 113 of the Water Resources Act 1991.
"Watercourse" has the meaning given by section 72(1) of the Land Drainage Act 1991.
"Ordinary watercourse" means a watercourse that does not form part of a main river.
"Groundwater" means all water which is below the surface of the ground and in direct contact with the ground or subsoil.
"Surface runoff" means rainwater (including snow and other precipitation) which—
In subsection (5)(b)—
"Lead local flood authority" in relation to an area in England means—
"Unitary authority" means—
"Lead local flood authority" in relation to an area in Wales means—
"Internal drainage board" has the same meaning as in section 1 of the Land Drainage Act 1991.
"Water company" means ... —
"Highway authority" has the meaning given by section 1 of the Highways Act 1980.
"Risk management authority" means—
"English risk management authority" means—
"Welsh risk management authority" means—
"Cross-border internal drainage board" means an internal drainage board for an internal drainage district that is partly in England and partly in Wales.
"Wales" has the meaning given by section 158 of the Government of Wales Act 2006.