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[[File:Vegetated_filter_strip_1.jpg|thumb|500px|Grass filter strip draining to vegetated swale.  Source: Trinkhaus Engineering]]
 
[[File:Vegetated_filter_strip_1.jpg|thumb|500px|Grass filter strip draining to vegetated swale.  Source: Trinkhaus Engineering]]
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==Overview==
 
==Overview==
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Once runoff from an impervious surface becomes concentrated, a [[swales|swale]] design should be used instead of a vegetated filter strip <ref name="Barrett2004"/>.
 
Once runoff from an impervious surface becomes concentrated, a [[swales|swale]] design should be used instead of a vegetated filter strip <ref name="Barrett2004"/>.
 
</poem>
 
</poem>
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For a table summarizing information on planning considerations and site constraints see [[Site considerations]].
      
==Design==
 
==Design==

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