The Ontario Building Code | Vertical Separations and Existing Sewage Sys
11.3.5.2. Vertical Separations and Existing Sewage Systems
(1) Despite Subsections 11.3.1. to 11.3.3., where an existing sewage system is extended or is subject to material alteration or repair, the requirements respecting the vertical separation to the water table set out in Part 8 apply to the extended, altered or repaired portions of the sewage system as well as to the existing portions of the sewage system.
Section 11.4. Performance Level Evaluation and Compensating Construction
11.4.1. General
In Plain Language
Vertical separations and existing sewage systems affected by a renovation project must meet the requirements set out in this article.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.