Total Active Wastewater Treatment and Wastewater Collection Licences

This dataset provides a count of the number of wastewater operator licences held in Ontario. • Municipal wastewater facilities and non-municipal domestic wastewater facilities that discharge to a watercourse must employ licenced wastewater operators. • Wastewater operators require licencing under O. Reg. 129/04 to operate There are two types of wastewater operator licence: o Wastewater treatment o Wastewater collection • Wastewater licences range from operator-in-training (OIT) through Class 1-4. The higher the class of licence, the more education and experience required

More information on wastewater operator licencing can be found in the Licensing Guide for Wastewater Operators | ontario.ca

Ministry contact: Alexander Salewski

Additional information

Tags: Wastewater Wastewater

Operator Operator

Licensing Licensing

Licence Licence

Wastewater Operator Wastewater Operator

Sewage Works Sewage Works
Geographic coverage: Ontario
Maintainer: Alexander Salewski
Last Validated Date: April 1, 2026
Update frequency: Yearly