How to request exemption from treatment equipment — and autofill 5391 with my-id.ca
File treatment equipment exemption notices without retyping system contact details
Drinking water system owners seeking an exemption from treatment equipment requirements repeat legal name, system location, authorized contacts, and subsystem details on every Notice of Exemption from Treatment Equipment. This guide is an example of storing them once in my-id.ca.
Official form and source
Start from the official source and always use the current version — form numbers and links can change:
- Service page: Guide for applying for drinking water works permit and licence amendments — ontario.ca
- Form (Central Forms Repository): Notice of Exemption from Treatment Equipment — 5391
What this form is about
Form 5391 notifies the ministry of an exemption from treatment equipment requirements — confirm eligibility and supporting evidence on ontario.ca.
Before you start: what to gather
- System owner legal name and mailing address.
- Drinking water system name and location.
- Authorized contact name, phone, and email.
- Basis for exemption and supporting technical information — confirm on ontario.ca.
Confirm the current process on ontario.ca.
How my-id.ca makes it faster
- Save it once. Store your system name, address, and contact details in your my-id.ca profile.
- Keep documents ready. Upload supporting documents to my-id.ca Files so you are not searching at form time.
- Autofill the form. Use the my-id.ca Chrome extension on a web form, or fill a PDF from your saved profile inside my-id.ca.
- Review and submit yourself through the official channel.
Why do it in my-id.ca
Related Ontario forms repeat the same personal details. Captured once in my-id.ca — stored in Canada, with AI on its own servers — every form starts mostly complete.
Frequently asked questions
- Who can request an exemption?
- Eligible drinking water system owners — confirm criteria on ontario.ca.
- How does my-id.ca help?
- It autofills system name, address, and contact details.
- Does an exemption replace a drinking water works permit?
- Permit and licence conditions still apply — confirm with MDWLP guidance on ontario.ca.
Fill it once. Reuse it everywhere.
Save your information in my-id.ca once, then autofill this form and the next one — web forms with the Chrome extension, PDFs right in the app. Your data is stored in Canada and AI runs on my-id.ca's own servers, never sent to third-party AI providers.