Notes
Slide Show
Outline
1
Exfiltration Trench
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Purpose of Exfiltration
Encourage return of storm runoff to the groundwater
Reduce the hydraulic load on the minor
(e.g. piped) system
Improve quality of runoff by removal of some particulate matter
Reduce thermal impact on the runoff
Split inflow hydrograph into two components of Outflow and Groundwater recharge
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Basic Theory
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Trench Cross-section
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Define Trench parameters
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Define Trench parameters
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Define outflow control
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Defining the Trench Pipes
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Results of Routing
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The Etobicoke Trench
Notes