Request Private Well Water Tests - Montréal Bylaw

Utilities and Infrastructure Quebec 3 Minutes Read · published February 11, 2026 Flag of Quebec

In Montréal, Quebec, owners of private wells should understand how to request drinking water tests, what authorities are involved, and which rules apply. This guide explains practical steps to obtain bacteriological and chemical analyses, who inspects or enforces standards, and where to find official guidance for sampling and accredited labs. For provincial technical guidance on private wells, see the Government of Quebec resource Private wells and water[1].

Test at least annually and after any well work or flooding.

What tests to request

Standard private-well testing typically includes bacteriological analysis for total coliforms and E. coli, and screening for nitrates, metals, or other contaminants if there are local risks. Ask the laboratory for a sampling kit and clear instructions.

Penalties & Enforcement

Montreal municipal bylaws specific to private wells are not consolidated on the City website; oversight commonly involves public health authorities and provincial regulators. Where enforcement exists, it will be carried out by public health inspectors or environmental officers identified by the enforcing authority.

  • Fine amounts: not specified on the cited page.
  • Escalation: first, repeat, and continuing offence procedures not specified on the cited page.
  • Non-monetary sanctions: orders to treat or stop use, corrective orders, and court actions are possible under public health or environmental statutes; specific measures not specified on the cited page.
  • Enforcer and complaints: public health departments and provincial environmental ministries handle inspections and complaints; contact local public health for Montreal-specific cases.
  • Appeals: formal appeal or review routes and time limits are not specified on the cited page; consult the enforcing office for timelines.
If a test shows contamination, stop using the water for drinking until an approved remedy is implemented.

Applications & Forms

No single municipal form for requesting a private-well test is published on the cited provincial guidance page; testing normally requires contacting an accredited laboratory or local public health unit to obtain a sampling kit and submission instructions INSPQ - Puits domestiques[2].

How to get a water test (practical steps)

  • Contact an accredited laboratory or local public health to order a test and obtain a sampling kit.
  • Follow sampling instructions exactly and note the sample collection date and time.
  • Deliver the sample to the laboratory within the required holding time, usually refrigerated.
  • Pay applicable laboratory fees; fee amounts are set by the lab and not specified on the cited pages.

FAQ

Who pays for private well water testing?
Homeowners or well owners are generally responsible for arranging and paying for tests; public subsidies or programs may exist locally — check with your public health office.
Which contaminants should I test for?
Start with bacteriological tests (total coliforms and E. coli); consider nitrate and metals if risks exist. Consult provincial guidance for recommended analyses.
How often should I test?
Test at least once a year and after events like flooding, well maintenance, or nearby use of chemicals.
Where do I send samples?
Samples must be submitted to an accredited laboratory; contact your local public health unit or the provincial guidance page for lab lists.

How-To

  1. Contact your local public health unit or an accredited laboratory to request a sampling kit and list of required tests.
  2. Collect the water sample following the lab's instructions, using sterile containers and recording collection details.
  3. Deliver or courier the sample to the lab within the specified holding time and pay the lab fee.
  4. Review the results with the lab or public health; if contamination is detected, follow corrective measures and retest after remediation.

Key Takeaways

  • Test private wells annually and after any well work.
  • Contact local public health for guidance and accredited lab referrals.

Help and Support / Resources


  1. [1] Government of Quebec - Private wells and water
  2. [2] INSPQ - Puits domestiques