109.—(1) It shall not be lawful for any person, save with the permission in writing of the Board and in accordance with the conditions as to time, place, and manner stated in such permission, to deposit, discharge, or allow to escape directly or indirectly from any premises or place or any vessel in or into the River Shannon or in or into any canal or other artificial waterway constructed under the Shannon Electricity Act, 1925 (No. 26 of 1925) any chemical or other substance (whether solid or liquid) of a nature calculated to corrode, erode, entangle, stop, break, or otherwise injure the Shannon works or any part thereof.

(2) Every person who deposits, discharges, or allows to escape directly or indirectly in or into the River Shannon or any such canal or artificial waterway as aforesaid any chemical or other substance (whether solid or liquid) in contravention of this section and the owner of the premises or place or the master and also the owner of the vessel from which such substance is so deposited, discharged, or allowed to escape shall be guilty of an offence under this section, and shall be liable on summary conviction thereof to a fine not exceeding fifty pounds, together with, in the case of a continuing offence, a fine not exceeding twenty pounds for every day on which the offence continues.

(3) In this section the expression “the River Shannon” does not include any part of that river below Parteen Villa but does include every tributary of that River entering it above Parteen Villa and every lake, pond, canal, or artificial waterway on or communicating directly or indirectly with the River Shannon above Parteen Villa.