Ontario Water Wastewater Certification Office
295 The West Mall Suite 302
Etobicoke, ON M9C 4Z4
Hours of Operation : Monday to Friday 8:30 – 5:00 (EST)
We respond to emails and voicemails within one business day.
For enquiries on certification program policies and procedures we will provide a response within 15 business days.
Toll Free: 1-877-231-2122