(1) Any person who excavates, opens up or removes or causes to be excavated, opened up or removed the ground around under or near to any foul water sewer shall obtain the prior consent in writing from the Sewerage Authority for the execution of such work and shall carry out any works necessary for the protection of the foul water sewer, as may be required by the Sewerage Authority, at his or her own expense.
(2) Any person who knowingly or unknowingly damages or obstructs any foul water sewer shall reimburse the Sewerage Authority against the cost of all expenses reasonably incurred by the Sewerage Authority in making good such damage or in clearing and removing such obstruction.