16.A pesticide is exempted from the application of the second paragraph of section 34 of the Pesticides Act (chapter P-9.3) where it is used
(1) to prepare water or fluid used in the operation of evaporation, washing, extraction, cooling, pasteurization or heating equipment or in the manufacture of a product other than a pesticide; or
(2) in a pesticide injection system in a drinking water catchment facility or in an industrial water intake, in order to prevent the proliferation of zebra mussels in such facilities and in the pipes they supply.