Tables of Drinking Water Threats

We've made tables that include the 21 drinking water quality threat activities, set out in O. Reg. 287/07, which may pose a risk to a municipal drinking water supply. The tables also provide all the circumstances associated with each threat. The tables separate drinking water quality threats into two sections: chemical and pathogen.

Publisher
Government of Ontario
Resources
6
Catalogue metadata updated
2026-08-12

Data overview

Formats
HTML, PDF, XLSX
File languages
English, French
Available actions
2 loadable resources

Official sources and licences

Resources

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