Exfiltration trenches
Revision as of 20:08, 10 October 2017 by Jenny Hill (talk | contribs)
Overview[edit]
Exfiltration trenches are similar to infiltration trenches but differ primarily in the the manner in which stormwater is delivered to the trench. 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.