(1)A sewerage undertaker may give a direction under section 124 above before the time specified in subsection (2) of that section and without the consent required by subsection (3) of that section if it considers it necessary to do so in order to provide proper protection for persons likely to be affected by the discharges which could lawfully be made apart from the direction.
(2)Subject to section 134(3) below, where a sewerage undertaker gives a direction by virtue of subsection (1) above, the undertaker shall be liable to pay compensation to the owner and occupier of the trade premises to which the direction relates, unless the undertaker is of the opinion that the direction is required—
(a)in consequence of a change of circumstances which—
(i)has occurred since the beginning of the period of two years in question; and
(ii)could not reasonably have been foreseen at the beginning of that period;
and
(b)otherwise than in consequence of consents for discharges given after the beginning of that period.
(3)Where a sewerage undertaker gives a direction by virtue of subsection (1) above and is of the opinion mentioned in subsection (2) above, it shall be the duty of the undertaker to give notice of the reasons for its opinion to the owner and occupier of the premises in question.
(4)For the purposes of this section the circumstances referred to in subsection (2)(a) above may include the information available as to the discharges to which the consent in question relates or as to the interaction of those discharges with other discharges or matter.
(5)The Secretary of State may by regulations make provision as to the manner of determining the amount of any compensation payable under this section, including the factors to be taken into account in determining that amount.