Stormwater Management
Stormwater Management Design for Ontario Developments
We prepare stormwater management reports and facility designs that satisfy Conservation Authority and municipal requirements for quantity control, quality treatment, and erosion protection.
Why It Matters
Why Stormwater Management Matters
Ontario's Conservation Authorities and municipalities require stormwater management as a condition of development approval. A properly designed SWM strategy protects downstream watercourses, reduces flood risk, and demonstrates compliance with the Ministry of the Environment's Stormwater Management Planning and Design Manual.
Regulatory Compliance
Meets Conservation Authority and municipal stormwater quantity and quality control requirements.
Flood Risk Reduction
Controls post-development peak flows to pre-development levels for the 2-, 5-, 25-, and 100-year storms.
Water Quality Treatment
Removes suspended solids and contaminants to protect downstream watercourses and receiving water bodies.
Erosion Protection
Manages channel erosion through extended detention and low-flow channel protection measures.
Deliverables
What We Deliver
Stormwater Management Report
Pre- and post-development hydrology analysis using SWMHYMO or PCSWMM, with quantity and quality control calculations.
SWM Facility Design
Engineered design of stormwater ponds, underground storage, oil-grit separators, or low-impact development measures.
Drainage Area Map
Delineation of drainage sub-catchments and routing to the proposed stormwater management facility.
Water Balance Analysis
Groundwater recharge and water balance calculations for sites with infiltration or LID requirements.
Erosion & Sediment Control Plan
Temporary construction-phase measures to prevent sediment migration to watercourses.
Agency Submission Package
Stamped report and drawings formatted to Conservation Authority and municipal submission requirements.
Ready to Move Your SWM Design Forward?
Contact our team for a free consultation on your stormwater management requirements.
Get In Touch
Start Your Project
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