7. For the purposes of the first paragraph of section 31.92 of the Environment Quality Act (chapter Q-2), the daily average quantity of water transferred out of the basin is calculated on the basis of a period of 90 consecutive days corresponding to the period during which the volume of water transferred is at its peak.
For the purposes of the second paragraph of that section, the average daily quantity of water that is consumed is calculated on the basis of a period of 90 consecutive days corresponding to the period during which consumptive use is at its peak.
Those calculations must be made by a professional and be attached to the application for authorization.