Government Programs and Regulations for Property Owners

Drinking Water Testing Certificate of Potability for Mortgage Purposes)

Issue

  • The Public Health Laboratories Branch of the Ministry of Health and Long-Term Care provides
    routine drinking water testing for Ontarians who have their own source of drinking water
    (e.g. a well) that serves a single household.

  • The Ministry will provide a certificate of potability for mortgage purposes for the sale of a property. To
    ensure the smooth completion of real estate transactions, it is important that all parties are aware of the timelines involved with drinking water testing.

What do I have to do?

  1. Drinking water testing performed by the Ministry requires processing of a sample followed by analysis under specific laboratory conditions. Results are usually available within two business days following receipt of the sample by the laboratory.
  2. Test reports are mailed to the return address that appears on the submission form or, if requested, the report can be.
To ensure the smooth completion of real estate transactions, it is important that all parties are aware of the timelines involved with drinking water testing.