Div. B › Part 7 › 7.1 › 7.1.5 — Service Connections

7.1.5.1 — Sanitary Drainage Systems

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(1) Every sanitary drainage system shall be connected to a public sanitary sewer, a public combined sewer or a private sewage disposal system.

(2) A combined building drain or a combined building sewer shall not be installed.

OBC Definitions

Defined terms on this page

building drain

means the lowest horizontal piping, including any vertical offset, that conducts sewage, clear water waste or storm water by gravity to a building sewer.

building sewer

means a sanitary building sewer or storm building sewer.

drainage system

means an assembly of pipes, fittings, fixtures and appurtenances on a property that is used to convey sewage and clear water waste to a main sewer or a private sewage disposal system, and includes a private sewer, but does not include subsoil drainage piping. Drinking water system has the same meaning as in subsection 2 (1) of the Safe Drinking Water Act, 2002.

private sewage disposal system

means a sewage system or a sewage works that is not owned and operated by the Crown, a municipality or an organization acceptable to the Director responsible for issuing an environmental compliance approval required under section 53 of the Ontario Water Resources Act.

sanitary drainage system

means a drainage system that conducts sanitary sewage.

sanitary sewer

means a sewer that conducts sewage.

sewage

means sanitary sewage or storm sewage.

building

(a) a structure occupying an area greater than ten square metres consisting of a wall, roof and floor or any of them or a structural system serving the function thereof including all plumbing, works, fixtures and service systems appurtenant thereto,
(b) a structure occupying an area of ten square metres or less that contains plumbing, including the plumbing appurtenant thereto,
(c) plumbing not located in a structure,
(c.1) a sewage system, or
(d) structures designated in the building code; Act

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