Stormwater Discharge Testing
Stay compliant with municipal, provincial, and federal requirements for stormwater runoff by testing your discharge for pollutants, metals, and solids.
Stay compliant with municipal, provincial, and federal requirements for stormwater runoff by testing your discharge for pollutants, metals, and solids.
Stormwater runoff from industrial, commercial, and even large residential properties can carry pollutants directly into local waterways — contributing to environmental degradation and legal liability. Ontario municipalities and conservation authorities regulate what’s allowed in stormwater discharge, and non-compliance can lead to costly fines, environmental orders, or civil liability.
Canadian Water Compliance provides certified stormwater discharge testing to help businesses stay compliant with their local Storm Sewer Use By-laws, Ontario Water Resources Act, and Federal Wastewater Systems Effluent Regulations. Our tests commonly include total suspended solids (TSS), metals, oil and grease, pH, chlorides, biological oxygen demand (BOD), and other site-specific parameters required by your municipality or Environmental Compliance Approval (ECA).
Testing frequency varies by site, stormwater system design, and regulatory obligations, but it's typically required seasonally, quarterly, or following major rainfall events. We help you determine your testing obligations, collect samples through certified technicians, analyze them in an accredited lab, and deliver easy-to-interpret reports with actionable next steps.
If your facility operates under a Stormwater Pollution Prevention Plan (SWPPP) or Spill Contingency Plan, regular testing is a critical part of your compliance. Canadian Water Compliance helps you meet those requirements — minimizing your risk and protecting local ecosystems.
Stormwater discharge isn’t just rainwater — it often contains oil, grease, sediment, metals, and chemicals from parking lots, loading docks, storage areas, or facility operations. These contaminants can cause serious environmental harm and may result in violations under local bylaws or the Ontario Water Resources Act.
Regular testing ensures you're not discharging harmful pollutants and can prove due diligence if you’re ever audited or investigated.
Stormwater discharge is governed by a patchwork of environmental laws and bylaws. In Ontario, the Ontario Water Resources Act, the Environmental Protection Act, and local municipal sewer use bylaws all regulate the quality of stormwater discharged into sewers or natural water bodies.
If your site has an ECA (Environmental Compliance Approval) or is under a SWPPP, you are required to sample and analyze stormwater runoff regularly. We help interpret your local requirements and ensure you’re fully compliant.
We make stormwater testing easy. Our team coordinates with your facility to schedule sampling during appropriate weather events (like first-flush rainfall), conducts site-specific testing using approved methods, and sends samples to a certified environmental laboratory. You’ll receive a full report that includes results, any exceedances, and recommendations for remediation or follow-up action.
Whether you’re responding to a permit, planning infrastructure changes, or maintaining ongoing compliance, we’re here to help.
Serving across Toronto, Mississauga, Brampton, London, Kitchener, Niagara, St. Catharines, Guelph, Waterloo, Collingwood, Barrie, Wasaga Beach, Midland, Huntsville, Gravenhurst, Minden, Oshawa, Peterborough, Kingston, Ottawa, Scarborough, Markham, Richmond Hill, Vaughan, Burlington, Etobicoke, Pickering, Ajax, Whitby, Caledon, Milton, Hamilton, Oakville and the surrounding areas.