Section 112

The proprietor of any holding which under section 30 is deemed to follow the line of a survey traverse, whether made before, on or after the appointed day, or the line of any permanent structure, may on and after the appointed day as of right and without payment of any fee therefor divert water from any river on which such holding abuts to the like extent to which he may lawfully have made any such diversion prior to the appointed day:

Provided that the power conferred by this section may be exercised only to the extent that the rights of other lawful users of water from such river are not thereby affected.