Environment
Watercourse Management
The MRC ensures the integrated management of the outflow of water from waterways on its territory, which focuses on the public safety. The MRC enforces its regulations governing matters relating to the outflow of watercourses and plans the management of all watercourses under its jurisdiction, excluding the Outaouais River and the St. Lawrence River.
Agricultural Soil Retention Project
The objectives of this project are to improve the quality of watercourses by reducing the amount of sediment due to bank erosion, to reduce maintenance work required in waterways, and to improve growing conditions on many agricultural lands. It is made possible through the collaboration of agro-environmental advisory clubs, the Union des producteurs agricoles (UPA) and of the Conseil du bassin versant de la région de Vaudreuil-Soulanges (Watershed Council of the Vaudreuil-Soulanges Region – COBAVER-VS)
The MRC intends to maximize the use of MAPAQ’s aid package by seeking grants that can cover up to 90% of the cost of the works, which represents nearly $25,000 per farm business.
A personalized approach is offered to each farmer to promote the retention of agricultural soils. Here’s an overview of the steps of the project:
- Registration;
- Data compilation;
- Field diagnosis by an agronomist technician;
- Choice of actions to be carried out by farmers;
- Farmer-directed execution of the work;
- MAPAQ reimbursement according to grants.
For more information, or to participate, please contact the watercourses department by email at coursdeau@mrcvs.ca or by phone at 450-455-5753 x2202, or in person at the MRC office at 280 Boulevard Harwood in Vaudreuil-Dorion.
Obtaining a Permit
It is necessary to obtain a permit before performing ANY work on a watercourse.
Here are the documents to provide for a permit application:
- Application for Permit form (Available in French only)
- Detailed description of the work
- Location plan
- Plan of the intended work
- Hydrological and hydraulic studies, if necessary
- Payment of the fee
Here are some examples of permit costs:
| Work | Fee |
|---|---|
| Installation of bridges or culverts with a diameter less than 4m | $25 |
| Installation of bridges or culverts with a diameter greater than 4m | $400 |
| Ouvrage aérien ou souterrain qui croise un cours d’eau sur un terrain résidentiel | $100 |
| Above-ground or underground works that cross a watercourse on a residential property | $1,000 |
| Installation of drainage pipes, outlets, or ditches | $25 |
| Embankment stablization | $25 |
| Work redirecting runoff waters into a watercourse or tributary | $100 |
Works prohibited by the MRC:
- Installation of culverts made from a tank with an inner lining
- Pushing of snow into the watercourse
- Installation of parallel culverts, with some exceptions
- Waterway canalization
- Addition of an embankment to a watercourse
- Watercourse access for farm animals
- Installation of a dam on the watercourse
These works could lead to an offence under the applicable regulations. Please check with the MRC and your municipality before doing any work on a watercourse, as explained in this leaflet (available in French only).
Please contact the watercourses department for any permit request by email at coursdeau@mrcvs.ca by phone at 450-455-5753 x2202, or in person at the MRC office at 280 Boulevard Harwood in Vaudreuil-Dorion.
Watercourse Management
To request a service, please fill out the form. The MRC processes the requests received and prioritizes them based on public safety. The minimum period before the completion of the work is 2 years.
If you need to dig, check with Info-Excavation (available in French only) beforehand.
Please contact the watercourses department for any maintenance requests at by email at coursdeau@mrcvs.ca or by phone at 450-455-5753 x2202, or in person at the MRC office at 280 Boulevard Harwood in Vaudreuil-Dorion.
Removing an Obstruction
Obstructed or collapsed culvert
| Responsible Party | Type of Obstruction |
|---|---|
| The MRC | Beaver dams |
| Ice dams | |
| Preventative weakening of ice dams | |
| The owner, as provided for in the Loi et dans la réglementation, or else the MCR will intervene at the owner’s cost | Bridge or culvert of insufficient size |
| Sediments in the waterway due to collapse of an unstable river bank and dislocation of the river bank | |
| Being able to tolerate snow, branches, trash, scrap metal, etc. in the waterway |
Responsibilities of riverside property owners
As a riverside property owner, you must remove anything that can impede the flow of water, such as branches, trash, tree trunks or land subsidence. You must keep your shoreline in good condition and free of debris and keep native and natural vegetation over a minimum span of 10 or 15 meters.
Beaver dams
The MRC intervenes when it is informed that a beaver dam threatens public safety. Following the trapping of beavers, the MRC proceeds to dismantle dams causing an obstruction on the waterway.
For more information on beavers, click here (available in French only).
For more information on beaver depredation, click here (available in French only).
Please contact the waterways department for any inquiries regarding a waterway obstruction by email at coursdeau@mrcvs.ca or by phone at 450-455-5753 x2202, or in person at the MRC office located at 280 Boulevard Harwood in Vaudreuil-Dorion.
Identifying Watercourses on Your Property
The exact location, location of the riparian buffer, or other geographic information should be determined by a surveyor or biologist trained in the high water line determination process.
In response to your request, the MRC will send you a map approximate location of the watercourse on the property to study. The responsibility of the MRC is limited to confirming whether or not it is a watercourse under its jurisdiction.
What is a watercourse?
Some ditches are now considered watercourses under the Law, which makes no distinction between regular or intermittent watercourses and those created or modified by human intervention.
Definition of a watercourse under the jurisdiction of the MRC
The MRC has jurisdiction over regular or intermittent watercourses, including those created or modified by human intervention:
- Natural watercourse, regardless of drainage basin;
- Watercourse of natural but modified origin, regardless of the drainage basin;
- A dugout watercourse that exists only because of human intervention with a drained area greater than 100 hectares.
Please contact the watercourses department for any inquiries regarding the identification of a waterway by email at coursdeau@mrcvs.ca or by phone at 450-455-5753 x2202, or in person at the MRC office at 280 Boulevard Harwood in Vaudreuil-Dorion.