12. For the purposes of Chapter 2 of Part 2 of the Water Resources Act 1991(1) (abstraction and impounding of water) and section 109 of that Act (as to structures in, over or under watercourses) as applying to the construction of any specified work, any consent or approval given or deemed to be given by the Environment Agency under this Schedule with respect to such construction shall be deemed also to constitute a licence under that Chapter to obstruct or impede the flow of inland waters at that point by means of impounding works or, as the case may be, a consent or approval under section 109, and the undertaker shall not be obliged to serve any notice which would otherwise be required by section 30 of the said Act of 1991 (which relates to the construction of boreholes and similar works in respect of which a licence is not required).
The Llangollen and Corwen Railway Order 2010
(1)