Stormwater Credit Program
The Stormwater Credit Program provides a stormwater charge reduction to multi-residential and non-residential properties whose stormwater practices or measures provide a direct benefit to the City's Stormwater Management Program.
Benefits of stormwater practices
- Peak Flow Reduction
Manage stormwater runoff rates and reduce the potential and severity of flooding on downstream land (examples include: drainage inlet controls, underground chamber systems and stormwater basins/ponds).
- Water Quality Treatment
Remove solids and other contaminants from stormwater runoff (examples include: stormwater pond, oil and grit separators and green infrastructure).
- Runoff Volume Reduction
Promote the reduction of the amount of stormwater runoff to the City’s stormwater system (examples include: green infrastructure, permeable pavements and rainwater harvesting systems).
- Pollution Prevention
Prepare and implement a plan for the handling, replacement or reduced use of harmful materials created or used on a property.
How are Credits Awarded?
To be awarded credits, applicants must provide engineering reports and drawings that demonstrate how well existing or proposed stormwater best management practices (BMPs) perform, according to the evaluation criteria below.
|Category||Evaluation Criteria||Total Credit
|Peak Flow Reduction||Per cent reduction of the 100 year post-development flow to pre-development conditions of the site.||Up to 40%||Up to 50%|
|Water Quality Treatment||Per cent of site (hard surface) receiving water quality treatment consistent with Provincial criteria for enhanced treatment.||Up to 10%|
|Runoff Volume Reduction||Per cent capture of first 15 mm of rainfall during a single rainfall event.||Up to 15%|
|Pollution Prevention||Develop and implement a pollution prevention plan.||Up to 5%|
Apply for credits
Participation in the Stormwater Credit Program is by application only.
There are three types of credit applications:
- New Credit
Apply for a new or pre-approved credit with an existing or proposed BMP for the first time; or apply subsequent to the cancellation of an approved credit.
- Credit Update
Update an approved credit to reflect a change that may affect the performance of the current BMPs.
- Credit Renewal
Renew an approved credit that is about to expire.
or download the printable application
View the Stormwater Charge Credit Application Guidance Manual to assist with the application process.
Visit best management practices and measures for more detailed information on the type of infrastructure to consider for the Stormwater Credit Program.
To ask questions about the Stormwater Credit Program, please email us at: email@example.com.
The City’s Stormwater Credit Policy outlines the program and process.
Credit Program Information Session for Multi-Residential Properties
- City of Mississauga Presentation Slides, Dec 7, 2015
- Credit Valley Conservation Presentation Slides, Dec 7, 2015
- Partners in Project Green Presentation Slides, Dec 7, 2015
Credit Program Information Session
Administration of Stormwater Credit Program
The Stormwater Credit Program will be administered by the City’s Environmental Services Section. Stormwater Credits will appear on the Region of Peel water bill as a reduction to the Stormwater Charge amount for the property. As part of the program, the City may conduct site inspections in relation to the stormwater practices on a property. For more information, see the Credit Policy and Fees and Charges By-Law.