Contact Us

Please feel free to call or email us. All inquiries will be

directed to a customer service representative.

OWWCO Office Hours
Monday to Friday
8:30am to 5:00pm (EST)

Ontario Water Wastewater Certification Office
302 The East Mall, Suite 410
Etobicoke, ON M9B 6C7

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

Email inquiries: info@owwco.ca

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