Q-2, r. 35.2 - Water Withdrawal and Protection Regulation

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72. An intermediate protection zone is delimited for category 1 or 2 surface water withdrawals. The limits of the zone are set at the following distances:
(1)  3 km around a category 1 or 2 withdrawal site, if it is located in a lake;
(2)  15 km upstream and 100 m downstream from a category 1 or 2 withdrawal site if it is situated in the St. Lawrence River or, if it is located in the parts of the St. Lawrence River where the current may reverse due to the tide, 15 km upstream and downstream from the withdrawal site;
(3)  10 km upstream and 50 m downstream from a category 1 or 2 withdrawal site located in any other watercourse.
The distances include surface water, portions of tributaries and a 120 m strip of land measured from the high-water mark.
O.C. 696-2014, s. 72.