6(1)Any provision of this Schedule relating to the apportionment of the cumulo-value of an undertaking among rating areas or rating districts or with respect to any amount so apportioned shall have effect subject to the necessary modifications where, by reason of the fact that the undertaking does not extend beyond the boundaries of a single rating area or a single rating district, provision for apportionment is inappropriate; and in relation to an undertaking which does not extend beyond the boundaries of a single rating district—
(a)effect shall not be given to objections to any proposal under paragraph 4 of this Schedule with respect to the water hereditaments of that undertaking ;
(b)paragraph 5(3) to (6) of this Schedule shall not apply.
(2)Anything required under this Schedule to be done in determining or adjusting the cumulo-value for an undertaking, and any apportionment of a cumulo-value, shall be done or made by the Commissioners.
(3)Any apportionment of the cumulo-value for an undertaking among rating districts shall be done in like manner as would have been required for the apportionment of the net annual value of the undertaking if the valuation of the water hereditaments of the undertaking had fallen to be made under section 19(3) of this Act on the profits basis as hereditaments of an undertaking not including any dwellings, and any such apportionment among rating areas shall be done in the same manner.
(4)Before the end of December last before the coming into force of any new valuation lists, the Commissioners shall as respects each statutory water undertaking furnish to the undertakers and to the rating authorities concerned the particulars required by the Commissioners for determining the cumulo-value for the undertaking for the purposes of those lists and also particulars of the manner in which the cumulo-value is to be apportioned among rating districts.