Stormwater Management

Stormwater Management is a necessary component of urban infrastructure. In simple terms, precipitation that lands on the ground surface is distributed in several components.

  • Infiltration: water that infiltrates into the ground
  • Evapotranspiration: evaporates into the air or is consumed by plants
  • Runoff: travels on the surface

In a natural setting, the presence of vegetation and the lack of hard surfaces means that a relatively small part of the rainfall produces runoff. In urban communities, the introduction of hard surfaces and the reduction in vegetation cover alter this proportion creating more runoff. Therefore, there is less infiltration and evapotranspiration.

During a storm event, this increase in surface runoff can result in both flooding and erosion of our streams. These hazards can be a threat to human life, property, infrastructure and the health of our streams. In addition, human activities produces pollution, which in combination with the increased runoff can degrade our water resources and our natural heritage system.

Effective stormwater management is essential for the management of quantity and quality of runoff generated by our communities in order to prevent these negative impacts.

Technical Guidelines

X
COVID-19 related service changes
Data and information released from Credit Valley Conservation (CVC) are provided on an 'AS IS' basis, without warranty of any kind, including without limitation the warranties of merchantability, fitness for a particular purpose and non-infringement.

Availability of this data and information does not constitute scientific publication. Data and/or information may contain errors or be incomplete. CVC and its employees make no representation or warranty, express or implied, including without limitation any warranties of merchantability or fitness for a particular purpose or warranties as to the identity or ownership of data or information, the quality, accuracy or completeness of data or information, or that the use of such data or information will not infringe any patent, intellectual property or proprietary rights of any party. CVC shall not be liable for any claim for any loss, harm, illness or other damage or injury arising from access to or use of data or information, including without limitation any direct, indirect, incidental, exemplary, special or consequential damages, even if advised of the possibility of such damages.

In accordance with scientific standards, appropriate acknowledgment of CVC should be made in any publications or other disclosures concerning data or information made available by CVC.
DATA DISCLAIMER