31.36. In determining the conditions, restrictions and prohibitions applicable to the operation of works referred to in section 31.32, the Minister shall take the following factors into consideration:(1) the class to which the works belong and their geographical location;
(2) the nature, quantity, quality and concentration of every contaminant released into the environment as a result of the operation of the works concerned;
(3) the nature, origin and quality of the water treated by the works concerned; and
(4) the impact of the release of contaminants on environmental quality, living species, ecosystems and property, and on human life, health, safety, welfare and comfort.