Did you know, you can’t just discharge any type of water to the sewer?
Sewer Discharge Permits and Agreements are required when private water (water not purchased from the City) is discharged into the City’s sewer system, including storm sewers, sanitary sewers or combined sewers. The City of Toronto’s Sewers Bylaw requires a Sewer Discharge Permit and/or Agreement be obtained and executed before any private water discharge can occur. Examples of private water include:
Once approval is granted by Toronto Water, Discharge Permits and Agreements allow private water to be discharged into the storm sewer, sanitary sewer or combined sewer.
Permits are issued when:
Examples of this type of activity include site remediation and construction dewatering.
Agreements are issued when:
Agreements are granted for terms of up to one year and may be renewable. An example is discharge from a permanent private water drainage system.
Note: If discharging to a storm sewer, that then leads to a combined sewer or sanitary sewer, a fee will be charged for treating that wastewater.
Completed applications must be submitted at least eight to 12 weeks prior to the proposed discharge start date. Incomplete applications will take longer to process.
Download the Private Water Discharge Approval Application
Two copies of the application must be submitted: one by email and one by mail.
Attn: Toronto Water Environmental Monitoring & Protection
30 Dee Ave.
Toronto, ON M9N 1S9
The requirements for amending a Private Water Discharge Agreement have recently changed. For a list of the latest requirements, please email: firstname.lastname@example.org