Ontario · O. Reg. 63/16 was amendedIn force September 1, 2026 · detected October 1, 2026

Minor wording updates clarify stream order threshold and construction site definition for water-taking registrations

REGISTRATIONS UNDER PART II.2 OF THE ACT - WATER TAKING — under the Environmental Protection Act

Plain-language summary · AI-assisted · not legal advice

Two small but potentially meaningful wording changes have been consolidated into the regulation. First, the threshold for permanent streams subject to registration is now described as stream order 'three or higher' (replacing 'three or greater') — the practical effect on which streams are covered is unchanged, but the language is now consistent with standard usage. Second, the definition of 'construction site' now excludes sites that are 'directly associated' with mines, pits or quarries (replacing 'associated with') — this tighter wording may affect whether a site on the fringe of a mining or quarry operation qualifies as a construction site for registration purposes. Operators who take water for dewatering at construction sites near mining or quarry operations should review whether their site still falls within the construction site definition. No new obligations are created, but the narrowed exclusion could bring some previously excluded sites into scope.

Who this affects: construction site operators · dewatering contractors · mining and quarry adjacent site operators · environmental compliance managers · water-taking registrants under Part II.2

Source of truth: O. Reg. 63/16 on the official source · consolidated version 12 → 0

Legislative text © King's Printer for Ontario. This page is not an official version of the law and is not legal advice. Verify against the official source before acting.

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