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[[File:PP IWS.gif|thumb|Conceptual diagram illustrating an adjustable storage underdrain configuration beneath permeable interlocking pavers]]

[[File:PP IWS.gif|frame|Conceptual diagram illustrating an adjustable storage underdrain configuration beneath permeable interlocking pavers]]

==Overview==

==Overview==

Permeable paving allows stormwater to drain through the surface and into a stone reservoir. There it is infiltrated into the underlying native soil or temporarily detained.  

Permeable paving allows stormwater to drain through the surface and into a stone reservoir. There it is infiltrated into the underlying native soil or temporarily detained.