Consolidated Statutes and Regulations
Consolidated Statutes
Consolidated Regulations
Annual Statutes and Regulations
Annual Statutes
Annual Regulations
Additional information
Québec Official Publisher
What’s new?
Information note
Policy of the Minister of Justice
Laws: Amendments
Laws: Provisions not in force
Laws: Provisions brought into force
Annual Statutes: PDF versions since 1996
Regulations: Amendments
Annual Regulations: PDF versions since 1996
Court Decisions
Q-2, r. 22 - Regulation respecting waste water disposal systems for isolated dwellings
Section 7
Disposition versions
7. Water and effluent pathway: Except where water is disposed of or discharged into the environment in the cases and on the conditions provided for in Divisions XI and XII to XIV, only domestic waste water, grey water and toilet effluents must be disposed of according to the following pathway:
(1) domestic waste water, grey water and toilet effluents must be carried towards a primary treatment system, a secondary treatment system, an aerated installation, an advanced secondary treatment system or a tertiary treatment system that complies with Division V, V.2, XV.2 or XV.3, as the case may be;
(2) the effluent of the primary treatment system must be carried towards a soil absorption system, a secondary treatment system, a standard sand-filter bed, an advanced secondary treatment system or a tertiary treatment system that complies with Divisions V.2 to X or with Divisions XV.2 and XV.3 or municipal waste water treatment works, as the case may be;
(3) the effluent of a secondary treatment system or an aerated installation must be carried towards a soil absorption system, a standard sand-filter bed, an advanced secondary treatment system or a tertiary treatment system that complies with Divisions VI to X or with Divisions XV.2 and XV.3, as the case may be; where the secondary treatment system is watertight, it may also be carried towards municipal waste water works;
(4) the effluent of a standard sand-filter bed or an advanced secondary treatment system must be carried towards a tertiary treatment system, a leaching field or an above-ground leaching field built with borrowed sand that complies with Divisions XV.3, XV.4 and XV.4.1, as the case may be; in the case of the advanced secondary treatment system, it may also, where the system is watertight, be carried towards municipal waste water works;
(5) the effluent of a tertiary treatment system must be carried towards a leaching field or towards an above-ground leaching field built with borrowed sand that complies with Division XV.4 or XV.4.1, whichever applies.
Notwithstanding subparagraphs 4 and 5 of the first paragraph, where the installation conditions provided for in subdivision 1 of Division XV.4 or Division XV.4.1 do not allow for the installation of a leaching field or an above-ground leaching field built with borrowed sand, as the case may be, the effluent of the systems referred to in those subparagraphs may be discharged into a lake, swamp, pond, watercourse or rainwater management system in the cases provided for in Division XV.5.
7. Water and effluent pathway: Except where water is disposed of or discharged into the environment in the cases and on the conditions provided for in Divisions XI to XIV, only waste water, grey water and toilet effluents must be disposed of according to the following pathway:
(1) waste water, grey water and toilet effluents must be carried towards a primary treatment system, a secondary treatment system, an aerated installation, an advanced secondary treatment system or a tertiary treatment system that complies with Division V, V.2, XV.2 or XV.3, as the case may be;
(2) the effluent of the primary treatment system must be carried towards a soil absorption system, a secondary treatment system, a standard sand-filter bed, an advanced secondary treatment system or a tertiary treatment system that complies with Divisions V.2 to X or with Divisions XV.2 and XV.3 or municipal waste water treatment works, as the case may be;
(3) the effluent of a secondary treatment system or an aerated installation must be carried towards a soil absorption system, a standard sand-filter bed, an advanced secondary treatment system or a tertiary treatment system that complies with Divisions VI to X or with Divisions XV.2 and XV.3, as the case may be; where the secondary treatment system is watertight, it may also be carried towards municipal waste water works;
(4) the effluent of a standard sand-filter bed or an advanced secondary treatment system must be carried towards a tertiary treatment system or a leaching field that complies with Division XV.3 or XV.4, as the case may be; in the case of the advanced secondary treatment system, it may also, where the system is watertight, be carried towards municipal waste water works;
(5) the effluent of a tertiary treatment system must be carried towards a leaching field that complies with Division XV.4.
Notwithstanding subparagraphs 4 and 5 of the first paragraph, where the installation conditions provided for in Division XV.4 do not allow for the installation of a leaching field, the effluent of the systems referred to in those subparagraphs may be discharged into a lake, swamp, pond, watercourse or ditch in the cases provided for in Division XV.5.
7. Water and effluent pathway: Except where water is disposed of or discharged into the environment in the cases and on the conditions provided for in Divisions XI to XIV, only waste water, grey water and toilet effluents must be disposed of according to the following pathway:
(1) waste water, grey water and toilet effluents must be carried towards a primary treatment system, a secondary treatment system, an aerated installation, an advanced secondary treatment system or a tertiary treatment system that complies with Division V, V.2, XV.2 or XV.3, as the case may be;
(2) the effluent of the primary treatment system must be carried towards a soil absorption system, a secondary treatment system, a standard sand-filter bed, an advanced secondary treatment system or a tertiary treatment system that complies with Divisions V.2 to X or with Divisions XV.2 and XV.3, as the case may be;
(3) the effluent of a secondary treatment system or an aerated installation must be carried towards a soil absorption system, a standard sand-filter bed, an advanced secondary treatment system or a tertiary treatment system that complies with Divisions VI to X or with Divisions XV.2 and XV.3, as the case may be;
(4) the effluent of a standard sand-filter bed or an advanced secondary treatment system must be carried towards a tertiary treatment system or a leaching field that complies with Division XV.3 or XV.4, as the case may be;
(5) the effluent of a tertiary treatment system must be carried towards a leaching field that complies with Division XV.4.
Notwithstanding subparagraphs 4 and 5 of the first paragraph, where the installation conditions provided for in Division XV.4 do not allow for the installation of a leaching field, the effluent of the systems referred to in those subparagraphs may be discharged into a lake, swamp, pond, watercourse or ditch in the cases provided for in Division XV.5.
