Provincial framework: In Ontario, Part 8 of the Building Code governs many onsite sewage systems. The authority issuing permits can be a local municipality, health unit or conservation authority; the particular approval office has not been checked for this new city. View governing source →
Durham Region Part 8 authority and Whitby drop-off service notice verified. Confirm the individual property, existing system design, legal permit and service connection before work.
Who approves onsite work near Whitby?
Confirm that the Whitby lot is on private sewage rather than Durham regional sewer. Use the Durham Region septic permit program. Follow current online/email or Regional headquarters/Port Perry submission and payment instructions; do not assume the 101 Consumers Drive counter has reopened without checking the live notice.
Records to request before purchase or renovation
- Property sewer-service confirmation and applicable utility account details.
- Available as-built site plan, past system permit or filing, inspections and commissioning paperwork.
- Pump-out, service and maintenance records, plus details of any expansions or reported failures.
- Site constraints: wells, slopes, flood-prone ground, shoreline setbacks and access for repairs.
When to seek a qualified professional
A design-capacity change, a new dwelling, significant repair, wastewater discharge problem or unknown tank condition can require professional site review and regulator contact. Never enter a septic tank. Stop using affected plumbing if sewage is escaping and obtain qualified assistance.
Official sources
Regulation and municipal starting points
- Ontario Part 8 sewage self-assessment — provincial framework
- Whitby municipal website — service and records starting point, not a verified onsite permit office
- Durham Region Health — Sewage and Septic Systems (Whitby submission route) — checked October 11, 2026