Q-2, r. 22 - Regulation respecting waste water disposal systems for isolated dwellings

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40. Disposal site: Where the effluent of a treatment system is carried towards a soil absorption system or a seepage bed and the disposal site is of impermeable or low permeability soil, the treatment system must be connected to a standard sand-filter bed provided that the bedrock is at least 60 cm below the surface of the disposal site and the grade of the disposal site is equal to or less than 15%.
R.R.Q., 1981, c. Q-2, r. 8, s. 40; O.C. 786-2000, s. 40.