The Ontario Building Code | General Requirements
8.7.8.1. General Requirements
(1) Except as provided in Sentence (2) and Sentence 8.7.8.2.(2), a Type B dispersal bed shall conform to the requirements of Article 8.7.2.1.
(2) AType B dispersal bed shall not be located in an area that has an average slope that exceeds one unit vertically to seven units horizontally.
In Plain Language
For septic system dispersal beds, this clause requires a Type B dispersal bed to meet the general requirements of Article 8.7.2.1 (with two narrow exceptions), and prohibits siting it on ground with an average slope steeper than 1 vertical to 7 horizontal.
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.