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

Section 39.1.1 Disposition versions

2020-12-03

39.1.1. Installation conditions in structured clay or silty clay soils: A primary or secondary treatment system may also be connected to an above-ground sand-filter bed in the following conditions:

(a)  a soil absorption field or a seepage bed cannot be built because it is impossible to comply with section 17 or 26;

(b)  using the correlation method in Schedule 1, the soil at the disposal site is impermeable solely because its texture is in the impermeable zone and, based on the hydraulic conductivity test or the percolation time test, the soil at the disposal site is permeable or low permeability soil. For the determination of the level of soil permeability, the result obtained by the correlation method must, however, be excluded;

(c)  the soil at the disposal site,

i.  according to its textural class, is structured as described in the following table:

Textural class of the soil	Required soil structure
	Type	Grade
Silt, silt loam, clay loam or silty clay loam	Prismatic, blocky or granular	Weak
		Moderate or strong
Sandy clay, silty clay or clay	Prismatic, blocky or granular	Moderate or strong

ii.  in a moist state has a consistence that is loose, very friable, friable or firm and is not in a cementation class; and

iii.  is not in the smectitic mineral class; and

(d)  the disposal site complies with the conditions described in paragraphs b and c of section 36.

O.C. 1156-2020, s. 43.