Where a person ("the applicant") is for the time being the holder of a licence under Chapter II of Part II of this Act to abstract water ("the applicant's licence"), and in accordance with the provisions of that licence—
the applicant may apply to the appropriate agency to make an agreement with him under this section and, subject to the following provisions of this section and sections 128 and 129 below, the appropriate agency may make such an agreement accordingly.
During any period for which an agreement under this section is in force, the following charges shall be payable by the applicant to the appropriate agency in respect of the applicant's licence, in so far as it relates to water authorised to be abstracted and used on the relevant land, that is to say—
In determining—
the appropriate agency shall have regard to the extent to which, in any year within the period proposed to be specified in the agreement as the period for which it is made, the quantity of water referred to in paragraph (a) of subsection (2) above is likely to exceed the quantity referred to in paragraph (b) of that subsection.
Where the applicant's licence authorises water abstracted in pursuance of the licence to be used on the relevant land for purposes which include spray irrigation and other purposes—
An application under subsection (1) above may be made by a person who has applied for, but is not yet the holder of, a licence under Chapter II of Part II of this Act to abstract water; and, in relation to an application so made or to an agreement made on such an application—
In this section and sections 128 and 129 below—
"the applicant" and "the applicant's licence" shall be construed, subject to subsection (5) above, in accordance with subsection (1) above;
"the relevant land" means the land on which the applicant's licence, as for the time being in force, authorises water abstracted in pursuance of the licence to be used for purposes which consist of or include spray irrigation; and
"year" means a period of twelve months beginning—