Access Richmond Hill
The Access Richmond Hill Contact Centre provides assistance for general inquiries, responds to questions or concerns regarding programs and services as well as accepts in person payments.
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905-771-8800
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Monday through Friday, 8:30 a.m. to 4:30 p.m.
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Humber Flats Stormwater Management Facility Environmental Assessment
The City of Richmond Hill has completed an environmental assessment of the Humber Flats Stormwater Management Facility (SWMF 1-4) to determine its current state and the optimal way to rehabilitate the facility to reduce the number of residential properties in the Regional floodplain.
The preferred solution includes the following:
- Replace the existing 2.4m wide x 1.8m high concrete culvert under Humberland Drive with three 3.0m wide x 2.1m high concrete box culverts
- Clean out the sediment and, deepen and expand the existing wet pond to provide enhanced quality treatment of stormwater runoff
- Minor regrading works to decommission the existing filter pads in the valleylands
A Project File Report is available for reference under the Notice of Completion tab below.
This study is now complete and detailed design of this project is expected to start in 2025.
Project Background
SWMF 1-4 is located within the valleylands between Bathurst Street and Red Cardinal Trail, which contributes to the East Humber River. The study area includes all parts of the facility, which consists of three main components (see map):
- A series of nine filter pads within the valleylands, referred to as the “ecopark”;
- A quantity control dry pond upstream of Humberland Drive; and
- A wet detention pond south of Humberland Drive.
The facility was constructed in 1997 and has a total major drainage area of about 188 ha. Based on updated hydraulic modeling performed by the Toronto and Region Conservation Authority (TRCA), it was determined that 123 residential properties adjacent to the facility are located within the Regional floodplain. The primary purpose of this Study is to determine potential alternatives and identify the best means to reduce the number of residential properties within the floodplain by reducing the floodplain extents while maintaining the stormwater management function provided by the facility.
The study has been conducted in accordance with Schedule B of the Municipal Class Environmental Assessment (EA) process (October 2000, as amended in 2007, 2011, 2015 and 2023). A Project File Report documenting the planning and decision-making process, including the analyses, evaluations and required consultations, has been prepared and is available for reference in the Notice of Completion tab below.
Public Communications and Consultation
| Notice of Commencement |
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A Notice of Commencement for this project was mailed to adjacent residents on March 8, 2023. An online version is published here. |
| Public Open House |
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To facilitate community input, an Open House was held on Wednesday, May 31 at the Oak Ridges Library, where residents were invited to join in the review and provide feedback on the proposed solutions for the rehabilitation of the Humber Flats Stormwater Management Facility. The Open House presented an overview of the project and study findings, alternative solutions considered, and the proposed solution. For those who were unable to attend the in-person event, an online survey was open to provide feedback between May 31 and June 18, 2023. The Open House presentation boards have been posted below: The notice of the Open House was mailed to homes in the nearby neighbourhood, and is posted here: |
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Notice of Completion |
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A Notice of Completion for this project has been mailed to adjacent residents and published here on March 22, 2024. The Project File Report including the associated appendices is available for reference in the links below:
The study was available for public review and comment from March 22, 2024 to April 26, 2024. Any questions or concerns on the project collected during the commenting period will be reviewed and taken into consideration as the project continues into detailed design and construction. |
| Questions or Comments |
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This study is complete and will move onto the design phase. If there are outstanding questions related to the Environmental Assessment Study, please submit written questions or comments to the contact listed below. For more information regarding submissions and the collection of information, please contact one of the Study Team members: Mr. Jeremy Wychreschuk, MASc, DPA, PMP, P.Eng. Any personal information is collected under the authority of the Municipal Act 2001, S.O. 2001, c.25, the Environmental Assessment Act, R.S.O 1990, c. E.18 and the Municipal Freedom of Information and Protection of Privacy Act, R.S.O. 1990, c. M.56. The City collects this information to enable it to make an informed decision on the relevant issue(s). Individuals who submit correspondence should be aware that any personal information in their communication will become part of the public record. The City will make it available to the public, unless the individual expressly requests the City to remove the personal information from the public record. Questions about the collection of this information may be directed to Jeremy Wychreschuk, at 905-771-5495, 225 East Beaver Creek Rd, Richmond Hill, Ontario L4B 3P4. |