Code Library › Volume 1 › Section 9.14 — Drainage
PART 9 — HOUSING AND SMALL BUILDINGSUpdated for the 2024 Ontario Building Code

9.14.5.3.Dry Wells

(1) Dry wells may be used only when located in areas where the natural groundwater level is below the bottom of the dry well. (2) Dry wells shall be not less than 5 m from the building foundation and located so that drainage is away from the building.
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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.