When, due to drilling or underground works or due to other activities, deposits or installations undertaken outside the perimeter and deemed likely to alter or diminish a natural mineral spring declared to be of public interest, the extension of the perimeter appears necessary, the State representative in the department may, at the request of the owner of the spring, temporarily order the suspension of the works or activities.
The works or activities may be resumed if, within six months, no decision has been taken on the extension of the perimeter.