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.

By Phone/Fax

T: 416-231-2100
F: 416-231-2107
Toll Free: 1-877-231-2122

Submit a Request

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Your privacy – Your personal information is being collected to address your inquiry and may also be shared with the Ministry of Environment, Conservation and Parks. Your information will not be placed on mailing lists or released to any third party, except as may be authorized by law.  Please do not submit payment or financial information through this form.