Subject to subsection (3) below, any person other than the appropriate agency, who proposes to install a gauge for measuring and recording the flow, level or volume of any inland waters other than discrete waters—
shall give notice to the appropriate agency of his proposal to install the gauge; and
shall not begin the work of installing it before the end of the period of three months beginning with the date of service of the notice or such shorter period as the appropriate agency may in any particular case allow.
Not more than one month after any such work as is mentioned in paragraph (b) of subsection (1) above is completed, the person required to give notice under that subsection shall give notice to the appropriate agency stating where the records obtained by means of the gauge are to be kept.
Subsections (1) and (2) above shall not apply—
to any gauge installed for the sole purpose of indicating the level of any inland waters for the benefit of persons who fish in them; or
to any gauge which is removed at or before the end of the period of twenty-eight days beginning with the date on which it is installed.
Any person who contravenes subsection (1) or (2) above shall be guilty of an offence and liable, on summary conviction, to a fine not exceeding level 1 on the standard scale.