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

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46. Covering: A standard sand-filter bed must be covered in accordance with section 24. The backfill which surrounds the sand-filter bed must be of impermeable or low permeability soil and stabilized with grass-type vegetation.
R.R.Q., 1981, c. Q-2, r. 8, s. 46; O.C. 786-2000, s. 45.