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Hydrology & Surface Water - Exhibition Station

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Key Findings

 

  • The study area is outside of the Toronto and Region Conservation Authority’s regulated area as well as any floodplain.
  • Changes to stormwater quality and quantity may occur and are anticipated to be minimized via implementation of appropriate mitigation measures such as minimizing the amount of exposed soil, protecting storm drain inlets, and stabilizing all exposed soil areas as soon as land alterations are completed.
  • Prior to construction, a Stormwater Management Plan outlining stormwater discharge management, and an Erosion and Sediment Control Plan will be developed.
  • The overall stormwater quality and quantity control strategy will be developed in accordance with all relevant municipal, provincial, and federal requirements, and outlined in the Stormwater Management Report.

 

Potential Effects and Mitigation Measures

Potential Effects:

  • No potential effects to hydrology and surface water are anticipated.
  • Change in stormwater quantity and quality, including erosion of exposed soil and increased sediment loading which may impact receiving waterbodies and/or municipal stormwater drainage system.

Mitigation Measures:

  • The overall stormwater quality and quantity control strategy will be developed in accordance with all relevant municipal, provincial, and federal requirements.
  • Prior to construction, a Stormwater Management Plan and an Erosion and Sediment Control Plan will be developed.
  • The following stormwater management best practices will be considered and implemented, as required:
    • Minimize clearing and amount of exposed soil;
    • Install sediment controls before grading/land alterations begin;
    • Sequence construction activities so that soil is not exposed for long periods of time;
    • Protect storm drain inlets to filter out debris; and
    • Stabilize all exposed soil areas as soon as land alterations have been completed.

Example of silt fencing used for erosion and sediment control

Example of silt fencing used for erosion and sediment control

← Return to Early Works: Exhibition Station

Submissions are closed.