(1) Every person who intends to execute works of drainage in connection with a building or its curtilage including works of maintenance shall give to the Sewerage Authority notice of his or her intention in writing together with a description of the proposed works and shall as far as may be necessary to show whether the works comply with this Act, send to the Sewerage Authority at the same time a plan, in duplicate, showing the line of the proposed drains and the size, depth and inclination of each new drain, the position of each manhole, gully trap, ventilating pipe, soil pipe, waste water pipe, rain water pipe, tank, soil fitting and waste fitting and the position and level of the outfall of such drainage and, where this outfall is not a foul water sewer, details of any septic tank, watercourse or soakaway.