1.1. Establishment of the permeability of the soil: Subject to paragraph b of section 39.1.1 and paragraph a of section 87.25.2, where several methods are used to determine the permeability of the soil and the results thus obtained allow the soil to be classified into 2 different degrees of permeability, the lower degree of permeability must be considered for the purposes of this Regulation.
O.C. 786-2000, s. 2; O.C. 1156-2020, s. 21.