65. An outer protection zone is delimited for category 1 or 2 groundwater withdrawals. The limits of the zone are set as follows:
(1) for category 1 water withdrawals, the limits must be determined by a professional who verifies, using data collected from a minimum of 3 wells that are constructed within the aquifer used for water withdrawals and that may be used to observe groundwater, the area of land where circulating groundwater may eventually be captured for water withdrawal;
(2) for category 2 groundwater withdrawals, using a radius of 2 km upstream from the withdrawal site, except if the limits have been determined under paragraph 1.