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File:Percolation trench.jpg|Percolation trench
Eco-Smart Infiltration trench.jpg|Trench laid in advance of the surrounding catchment being finished. This system would benefit from some geotextile on the surface to prevent sediment from accumulating before the asphalt is laid.
North Dakota State U infiltration trench.jpg|Good use of geotextile, being limited to preventing fines from entering the trench from above.
File:Percolation trench.jpg|View of infiltration trench in U.S. Photo credit: [[Acknowledgements|Moreau1]]
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[[category:Gallery]]
[[category:Gallery]]