A local authority may within their district and also, subject to the provisions of the next succeeding section, without their district—
Where a local authority propose in the exercise of their powers under this section to construct a sewer which will cross or interfere with any watercourse or works vested in, or under the control of, a land drainage authority, they shall before adopting plans for the construction of the sewer give notice of their proposals to that authority.
If a land drainage authority to whom notice has been given under the last preceding subsection, serve within twenty-eight days on the local authority notice of objection to their proposals, the local authority shall not proceed with their proposals unless all objections so made are withdrawn, or the Minister after a local inquiry "has approved the proposals either with or without modification.
Where a rural authority propose to carry out works for the sewerage of any part of their district, they shall, before adopting plans for the works, give notice of their proposals to the parish council of each parish to be served by the works, or, in the case of a parish not under a parish council, to the parish meeting.