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Water Quality Improvement by Base Course Aggregate in a Permeable Pavement with Underlying Reservoir Structure

Permeable pavements are an emerging water sensitive urban design component that allow for onsite infiltration of stormwater while providing both a structurally supportive surface and full amenity value ofabove lying land. This paper reports on research investigating the water qualityeffects of modifying the structure of a permeable pavement to accommodate underlying water storage amongst aggregate for harvesting and reuse. To investigate the effects on water quality of water storage in an aggregate matrix, model pavement structures were constructed in a laboratory and a synthetic stormwater was applied directly to the pavement reservoirs.


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