GeneralUse 49

Natural drainage patterns have changed over time in urban areas due to increases in impervious surfaces. Hardscapes, such as concrete and asphalt, prevent rainfall from being absorbed and can lead to increased water volumes and transport of nutrients.

Urban stormwater management uses a variety of practices such as raingardens, biofiltration areas, tree trenches and retention areas to improve water quality and manage stormwater volume.


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Dan Shaw
Native Vegetation Specialist