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[[File:Stormwater planter pu.png|thumb|An above ground planter with downspout and overflow illustrated.]]

[[File:Stormwater planter pu.png|thumb|An above ground planter with downspout and overflow illustrated.]]

Over underground infrastructure, soils prone to subsidence, or on sites considered to be pollution hotspots, it may be necessary to prevent all [[infiltration]]. These "filtration-only" BMPs can be squeezed into tight urban spaces, adjacent to buildings and within the usual setbacks required for infiltrating facilities. Stormwater planters can also be used as a means of providing building-integrated LID by capturing a portion of the rainwater from the rooftop.  

Over underground infrastructure, soils prone to subsidence, or on sites considered to be pollution hotspots, it may be necessary to prevent all [[infiltration]]. Stormwater planters are "filtration-only" BMPs, similar to bioretention cells, that can be squeezed into tight urban spaces, adjacent to buildings and within the usual setbacks required for infiltrating facilities. Stormwater planters can also be used as a means of providing building-integrated LID by capturing a portion of the rainwater from the rooftop.  

This type of cell can be constructed above grade in any waterproof and structurally sound container, e.g. in cast concrete or a metal tank.

This type of cell can be constructed above grade in any waterproof and structurally sound container, e.g. in cast concrete or a metal tank.

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