B-1.1, r. 3 - Safety Code

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142. Where single-wall petroleum equipment is buried within 150 m from a vertical plane touching the closest outside wall of subway or pedestrian, road or railway tunnel works under construction or already completed, the owner must conduct a leak detection test every year in compliance with the second paragraph of section 8.130 of Chapter VIII of the Construction Code (chapter B-1.1, r. 2).
If the leak detection test indicates a leak, all defective components in the installation must be repaired or replaced and another leak detection test must be conducted.
O.C. 221-2007, s. 1.