No drilling or underground work may be carried out within the protection perimeter of a natural mineral water spring declared to be of public interest, without prior authorisation issued by the State representative in the département.
With regard to excavations, trenches for the extraction of materials or any other object, house foundations, cellars or any other work in the open air, the prefectoral order establishing the protection perimeter may exceptionally require owners to make a declaration, at least one month in advance, to the representative of the State in the department, who will issue a receipt.
Other activities, deposits or installations likely to directly or indirectly harm water quality may also be subject to authorisation or declaration by the prefectoral order establishing the protection zone.