In any case to which this section applies the Corporation shall meet their remedial obligation in respect of any damage by making a payment under this section.
This section applies to the following cases—
Subject to subsection (4) below, the payment required under this section in respect of any damage is a payment equal to the cost reasonably incurred by any person in executing remedial works.
Where remedial works are executed after the end of the period of three years beginning with the date of the claimant's damage notice, the amount of any payment under subsection (3) above shall not exceed the cost which might reasonably have been expected to have been incurred in executing those works if they had been executed immediately before the end of that period.