Q-2, r. 7 - Regulation respecting pits and quarries

Full text
38. Slope: In the case of a pit, the restoration plan must not allow the slope of the worked surface to be more than 30º from the horizontal unless the ground is to be stabilized in some way to prevent landslides and erosion.
R.R.Q., 1981, c. Q-2, r. 2, s. 38.