2.—(1) Any person requesting a local authority to carry out any of the activities specified in the Table in paragraph 1 is liable for the cost.
(2) Otherwise fees are payable, as specified in the invoice, by the relevant person.
(3) Where more than one person is liable for a fee, in determining who is required to make payment, the local authority—
(a)must have regard to any agreement or other document produced to the local authority relating to the terms on which water is supplied, and
(b)may apportion the charge between them.