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Line 1: {{float right|[[File:Perf pipe resize small.gif|417 × 194 px|Exfiltration trench under high flow and exfiltration conditions]]}}
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File:Exfitlration .gif|500 px|Typical flow pathway through one section of the Etobicoke Exfiltration system (see performance report for further details) For more details click [https://sustainabletechnologies.ca/app/uploads/2013/03/Exfil_ES.pdf here.]
rect 195 134 260 179 [[Exfiltration: Gallery|Manhole]]
rect 28 285 153 312 [[Reservoir aggregate|Clear Stone Trench]]
rect 231 366 404 386 [[Pipes|Perforated Pipe]]
rect 9 334 84 398 [[Pipes|Perforated Pipe]]
rect 319 159 416 195 [[Better site design|Storm Sewer]]
rect 399 66 467 88 [[Overflow|Catch Basin]]
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Exfiltration trenches are similar to [[infiltration trenches]] but differ primarily in the the manner in which stormwater is delivered to the trench.<br>
Exfiltration trenches are similar to [[infiltration trenches]] but differ primarily in the the manner in which stormwater is delivered to the trench.<br>
Runoff enters infiltration trenches directly by infiltration from the surface. In exfiltration systems, surface runoff is collected by drainage [[inlets]] and delivered to the trench via subsurface perforated [[pipes]].
Runoff enters infiltration trenches directly by infiltration from the surface. In exfiltration systems, surface runoff is collected by drainage [[inlets]] and delivered to the trench via subsurface perforated [[pipes]].