50. It is prohibited to apply pesticides(1) less than 100 m from a water intake used for the production of spring water or mineral water within the meaning of the Regulation respecting bottled water (chapter P-29, r. 2) or for the supply of a waterworks if, in the latter case, the average daily operating capacity is greater than 75 m3; and
(2) less than 30 m from any other surface water intake for water intended for human consumption, or from any other groundwater catchment works.
The prohibition set out in subparagraph 2 of the first paragraph does not apply to(1) pesticide application for extermination during work described in permit Subclasses C5 or D5, if it is carried out more than 3 m from the water intake or catchment site;
(2) pesticide application for ornamental horticulture during work described in permit Subclasses C4 or D4, other than an application on golf courses, more than 3 m from an individual tubular well and, where applicable, if the application is carried out on the ground, on the condition that the ground is entirely covered with vegetation; or
(3) pesticide application on a railway ballast, if it is carried out with a windbreak.