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Water section

Drinking Water

Amendments to the Regulation respecting the quality of drinking water
Amendments to the Regulation respecting the quality of drinking water (RQEP) were published in the Gazette officielle du Québec on June 17, 2026. Several of these amendments come into force as early as July 2, 2026, and others will follow in October 2026. To find out which sections are concerned, their date of coming into force and to understand the reason for these amendments, consult the document (PDF, 525 KB) summarizing all the amendments made.

Whether it comes from underground sources or from a river or lake, water used to supply drinking water is essential. But before water can be consumed, it must first be determined that it is safe to drink. Only then is it delivered to consumers’ taps. An extensive monitoring process ensures that the water derives from a source of the highest possible quality and that it remains safe to drink from treatment to tap.

This page contains a wealth of information on the overall concerns about drinking water. The information provided is intended for private owners as well as those responsible for large drinking water facilities in Québec.

Acts and regulations

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Authorizations and supporting documents

Authorizations

Supporting documents

Specific interventions concerning various water quality problems

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Directories of drinking water production and distribution systems

Statements, reports, studies and useful references

Other agencies: