PART 8 — SEWAGE SYSTEMSUpdated for the 2024 Ontario Building Code
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8.2.1.5.Clearance Distances for Class 1, 2 and 3 Sewage Systems
(1) Except as provided in Sentences 8.2.1.4.(1) and (2), no Class 1, 2 or 3 sewage system shall have a horizontal
distance of less than that permitted by Table 8.2.1.5.
Table 8.2.1.5.
Clearance Distances for Class 1, 2 and 3 Sewage Systems
Forming Part of Sentence 8.2.1.5.(1)
Minimum horizontal distance in
Minimum horizontal Minimum horizontal distance in
metres from a spring used as a
distance in metres metres from a lake, river, pond, Minimum horizontal
source of potable water or well
Sewage System from a well with stream, reservoir, or a spring not distance in metres
other than a well with a
watertight casing to a used as a source of from a property line
watertight casing to a depth of at
depth of at least 6 m potable water
least 6 m
Earth Pit Privy 15 30 15 3
Privy Vault
10 15 10 3
Pail Privy
Greywater System 10 15 15 3
Cesspool 30 60 15 3
This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.
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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.