95. The distances provided for in subparagraphs 1, 2 and 3 of the first paragraph of section 17 do not apply to the replacement or substantial modification of a groundwater withdrawal facility existing on the date of coming into force of this section (2015-03-02) if a professional certifies, in a hydrological study, any of the following situations:(1) the presence of a superficial geological formation with low permeability provides natural protection for the groundwater;
(2) the configuration of the land or a nearby infrastructure ensures the protection of the quality of the groundwater with respect to incidents or activities that may occur within the zone concerned;
(3) the design of the groundwater withdrawal facility affords an equivalent protection;
(4) the dimensions of the land do not allow compliance with the distances given the presence of a main construction authorized by a municipality.
The applicable distances are determined by a professional who makes sure to minimize the risks that may affect the quality of the groundwater withdrawn by preparing, in particular, the plans and specifications of the facility and by supervising the construction work of the facility.