40. The fracturing operation of a well intended for exploration for or the production of petroleum or natural gas is prohibited less than 400 m below the base of an aquifer.
For the purposes of this section, the base of an aquifer is set at 200 m under the surface of the ground, unless the hydrogeological study provided for in section 38 shows that the base of the deepest aquifer presenting a total dissolved solid content less than 4,000 mg/l is located at a different depth.