PART IVLand drainage
Drainage rates
31Apportionment of certain rateable values for purposes of drainage rates.
1
Where the property which constitutes a hereditament for the purposes of drainage rates consists of or includes a part only of land for which a rateable value is shown in the current valuation list, the drainage board for the drainage district in which the hereditament is situated may if they think fit, and shall if the owner or occupier of the part in question requests them in writing to do so, determine that that list and each other valuation list from time to time in force in which a rateable value is shown for that land shall have effect—
a
for the purposes of subsections (4) to (6) of section 22 of the [1961 c. 48.] Land Drainage Act 1961 (which provide for the assessment of drainage rates by reference to rateable values); and
b
for the purpose of arriving at the relative fraction in pursuance of section 23 of that Act in a case where any other part of that land is situated outside the drainage district aforesaid,
as if such proportion of the rateable value so shown as is specified in the determination were shown in the list in question as the rateable value for that part.
2
Where a drainage board make a determination under subsection (1) of this section, they shall serve notice of the determination, together with a statement in writing of the rights of appeal conferred by section 32 of this Act, on the owner and occupier of the part of the land to which the determination relates.
3
A determination made by a drainage board under this section shall, subject to section 33 of this Act, have effect for the purposes of any drainage rate made by the board on or after the effective date, but shall not affect any rate so made before that date ; and in this subsection " the effective date " means the date on which notices of the determination are served in pursuance of subsection (2) of this section on the owner and occupier there mentioned or, where the notices are served on different dates, the later of those dates.